Yong keun Lee

Summary

Affiliation: Seoul National University
Country: Korea

Publications

  1. ncbi Influence of salivary organic substances on the discoloration of esthetic dental materials-a review
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul 110 749, Korea
    J Biomed Mater Res B Appl Biomater 76:397-402. 2006
  2. doi Opalescence and fluorescence properties of indirect and direct resin materials
    Sang Hoon Song
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, Seoul, Korea
    Acta Odontol Scand 66:236-42. 2008
  3. ncbi Comparison of color of resin composites of white and translucent shades with two shade guides
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Korea
    J Esthet Restor Dent 13:179-86. 2001
  4. ncbi Effect of surface conditions on the color of dental resin composites
    Yong keun Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Biomed Mater Res 63:657-63. 2002
  5. ncbi Effects of colour measuring mode and light source on the colour of shade guides
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Oral Rehabil 29:1099-107. 2002
  6. ncbi Mechanical properties of calcium phosphate based dental filling and regeneration materials
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Oral Rehabil 30:418-25. 2003
  7. ncbi Difference in polymerization color changes of dental resin composites by the measuring aperture size
    Yong keun Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 66:373-8. 2003
  8. ncbi Influence of illuminating and viewing aperture size on the color of dental resin composites
    Yong keun Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, 28 Yeonkun dong Chongno ku, Seoul, South Korea
    Dent Mater 20:116-23. 2004
  9. ncbi Color changes of dental resin composites by a salivary enzyme
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 70:66-72. 2004
  10. ncbi Effect of fluoride addition on the properties of dental alginate impression materials
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    J Mater Sci Mater Med 15:219-24. 2004

Collaborators

Detail Information

Publications104 found, 100 shown here

  1. ncbi Influence of salivary organic substances on the discoloration of esthetic dental materials-a review
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul 110 749, Korea
    J Biomed Mater Res B Appl Biomater 76:397-402. 2006
    ....
  2. doi Opalescence and fluorescence properties of indirect and direct resin materials
    Sang Hoon Song
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, Seoul, Korea
    Acta Odontol Scand 66:236-42. 2008
    ..To measure the opalescence and fluorescence properties of indirect and direct resin materials before and after polymerization, and to determine the influence of the material and shade group combination on these properties...
  3. ncbi Comparison of color of resin composites of white and translucent shades with two shade guides
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Korea
    J Esthet Restor Dent 13:179-86. 2001
    ..The influence of color measuring mode, specular component included (SCI) or excluded (SCE), was also determined...
  4. ncbi Effect of surface conditions on the color of dental resin composites
    Yong keun Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Biomed Mater Res 63:657-63. 2002
    ..DeltaE* values measured with the SCE between the specimens of different surface conditions were significantly higher than those with the SCI (p < 0.05)...
  5. ncbi Effects of colour measuring mode and light source on the colour of shade guides
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Oral Rehabil 29:1099-107. 2002
    ..In the Chromascop shade guide, the shade series (100-500) was negatively correlated with CIE L* value measured with SCI mode...
  6. ncbi Mechanical properties of calcium phosphate based dental filling and regeneration materials
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Oral Rehabil 30:418-25. 2003
    ..Acrylic resin-PCPC group showed generally higher CS and DTS values. Based on this study, further studies on the reaction with odontoblast and resultant dentine regeneration should be performed using promising compositions...
  7. ncbi Difference in polymerization color changes of dental resin composites by the measuring aperture size
    Yong keun Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 66:373-8. 2003
    ..05); however, the color change was material dependent in the case of packable resin composites...
  8. ncbi Influence of illuminating and viewing aperture size on the color of dental resin composites
    Yong keun Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, 28 Yeonkun dong Chongno ku, Seoul, South Korea
    Dent Mater 20:116-23. 2004
    ..The influences of the color measuring geometry, standard illumination and surface roughness on the color were also determined...
  9. ncbi Color changes of dental resin composites by a salivary enzyme
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 70:66-72. 2004
    ..The change in Ra value after immersion was varied by the composite and shade. VHN decreased significantly after immersion in ETE for nine weeks. Immersion in PBS resulted in decreased VHN in two composites...
  10. ncbi Effect of fluoride addition on the properties of dental alginate impression materials
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    J Mater Sci Mater Med 15:219-24. 2004
    ..Compressive strength after fluoride addition was 0.36-1.12 MPa. Addition of NaF or SnF2 in an alginate impression material may result in effective release of fluoride without deteriorating the properties of material itself...
  11. ncbi Changes of optical properties of dental nano-filled resin composites after curing and thermocycling
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 71:16-21. 2004
    ..05). Changes in CR values showed similar trends to those of TP values in translucency. Changes of color and translucency after curing, polishing, and thermocycling varied by the shade group...
  12. ncbi Calculation of colour resulting from composite/compomer layering techniques
    Y K Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Oral Rehabil 31:1102-8. 2004
    ..CIE L*, a* and b* values of double-layer material are mainly influenced by S, CIE a* and b* of covering layer, respectively...
  13. ncbi Difference in the colour and colour change of dental resin composites by the background
    Y K Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Oral Rehabil 32:227-33. 2005
    ..Correlation between the measured colour and varied shades of background should be further studied...
  14. ncbi Discoloration of dental resin composites after immersion in a series of organic and chemical solutions
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 73:361-7. 2005
    ..Although combined treatment of organic substances and chemical agents resulted in various discolorations of resin composites, chemical alteration of organic substances did not produce higher color change compared to PBS controls...
  15. ncbi Effect of surface sealant and staining on the fluorescence of resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Korea
    J Prosthet Dent 93:260-6. 2005
    ..Surface sealant and staining may change the fluorescence of resin composites...
  16. ncbi Comparison of CIE lab, CIEDE 2000, and DIN 99 color differences between various shades of resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Korea
    Int J Prosthodont 18:150-5. 2005
    ....
  17. ncbi Comparison of CIELAB DeltaE(*) and CIEDE2000 color-differences after polymerization and thermocycling of resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, South Korea
    Dent Mater 21:678-82. 2005
    ..The objective of this study was to determine the correlation between color-difference values of DeltaE(ab)(*) and DeltaE(00) after polymerization and thermocycling of dental resin composites...
  18. ncbi Fluorescence of layered resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Esthet Restor Dent 17:93-100; discussion 101. 2005
    ..Fluorescence is the absorption of light by a substance and the spontaneous emission of light in a longer wavelength within 10(-8) seconds of activation...
  19. ncbi Metameric effect between resin composite and dentin
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, South Korea
    Dent Mater 21:971-6. 2005
    ..The purpose of this study was to determine the metameric color differences between resin composites and dentin...
  20. ncbi Measurement of opalescence of resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, South Korea
    Dent Mater 21:1068-74. 2005
    ..The objective of this study was to determine the opalescence of resin composites with a color measuring spectrophotometer...
  21. ncbi Color and translucency of A2 shade resin composites after curing, polishing and thermocycling
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    Oper Dent 30:436-42. 2005
    ..Though the composite shades were all designated as A2, color coordinates, TP and CR values, changes in color and translucency after curing, polishing and thermocycling varied by brand...
  22. ncbi Influence of fluorescent and opalescent properties of resin composites on the masking effect
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Jongro Gu, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 76:26-32. 2006
    ..The influence of fluorescent property on masking effect was also confirmed, although the degree of correlation was very low...
  23. ncbi Changes in gloss after simulated generalized wear of composite resins
    Yong keun Lee
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    J Prosthet Dent 94:370-6. 2005
    ..Generalized wear of composite resins in the noncontact area may result in changes of gloss, which can influence esthetics of restorations...
  24. ncbi Changes in opalescence and fluorescence properties of resin composites after accelerated aging
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, South Korea
    Dent Mater 22:653-60. 2006
    ..The objective of this study was to determine the changes in opalescence and fluorescence properties of resin composites after accelerated aging for 150 kJ/m2. Changes in translucency and masking effect were also determined...
  25. ncbi Color difference of four esthetic restorative materials by the illuminant
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    Am J Dent 18:359-63. 2005
    ....
  26. ncbi Influence of scattering/absorption characteristics on the color of resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Republic of Korea
    Dent Mater 23:124-31. 2007
    ..The objective of this study was to determine the influence of the scattering and absorption characteristics including translucency and opalescence on the CIE color coordinates (L(*), a(*), and b(*)) of resin composites...
  27. ncbi Color changes of resin composites in the reflectance and transmittance modes
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 23:259-64. 2007
    ..The objective of this study was to evaluate the changes in color and color coordinates after accelerated aging of resin composites depending on the measuring modes of reflectance and transmittance...
  28. ncbi Effect of filler addition on the bonding parameters of dentin bonding adhesives bonded to human dentin
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    Am J Dent 19:23-7. 2006
    ..To determine the effect of filler addition on two total-etch, single component bonding systems on the bond strength, displacement at debonding, stiffness of debonding and energy absorbed to debonding of resin composites to human dentin...
  29. ncbi Changes in the translucency of porcelain and repairing resin composite by the illumination
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 23:492-7. 2007
    ....
  30. ncbi Changes in scattering and absorption properties of esthetic filling materials after aging
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 80:131-9. 2007
    ....
  31. ncbi Optical properties of four esthetic restorative materials after accelerated aging
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Korea
    Am J Dent 19:155-8. 2006
    ....
  32. ncbi Influence of opalescence and fluorescence properties on the light transmittance of resin composite as a function of wavelength
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, College of Dentistry, Seoul National University, Korea
    Am J Dent 19:283-8. 2006
    ..To determine the influence of opalescence and fluorescence properties on the light transmittance of resin composites as a function of wavelength (410-750 nm)...
  33. ncbi Combined effects of staining substances on resin composites before and after surface sealant application
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Jongro Gu, Seoul, Korea
    J Mater Sci Mater Med 18:685-91. 2007
    ..3). The changes in color and color parameters of sealant applied group were not significantly different from those of control group except for a few combinations of color parameters and resin composites...
  34. ncbi Combined effect of staining substances on the discoloration of esthetic Class V dental restorative materials
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    J Mater Sci Mater Med 18:165-70. 2007
    ..Colors did not recover to their original values after ultrasonic cleaning. Modifications on the surface of a restoration should be considered to reduce stain accumulation...
  35. ncbi Changes in color and staining of dental composite resins after wear simulation
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 82:313-9. 2007
    ..The objectives were to measure the discoloration as well as the change in staining of composite resins after wear simulation...
  36. ncbi Influence of background color on the color changes of resin composites after accelerated aging
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    Am J Dent 20:27-30. 2007
    ..To evaluate the changes in color and color coordinates after accelerated aging of resin composites depending on the background color...
  37. ncbi Layered color of all-ceramic core and veneer ceramics
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    J Prosthet Dent 97:279-86. 2007
    ..However, the influence on color of the different types of all-ceramic core and veneer combinations at clinically relevant thicknesses is not well understood...
  38. ncbi Measurement of opalescence of tooth enamel
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
    J Dent 35:690-4. 2007
    ..The objective of this study was to determine the opalescence of tooth enamel with reflection spectrophotometers...
  39. ncbi Influence of the changes in the UV component of illumination on the color of composite resins
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
    J Prosthet Dent 97:375-80. 2007
    ..The level of the UV component in daylight may influence the color of fluorescent composite resins used for anterior restorations...
  40. doi Influence of filler on the difference between the transmitted and reflected colors of experimental resin composites
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 24:1243-7. 2008
    ..This study sought to determine the influence of filler size and amount on the difference between the transmitted and reflected colors and the translucency of experimental resin composites...
  41. doi Colour and translucency of tooth-coloured orthodontic brackets
    Yong keun Lee
    Department of Dental Biomaterial Science and Dental Research Institute, School of Dentistry, Seoul National University, Korea
    Eur J Orthod 30:205-10. 2008
    ..Further studies on the clinical implications of colour matching of tooth-coloured brackets with teeth should now be performed...
  42. doi Changes in the reflected and transmitted color of esthetic brackets after thermal cycling
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
    Am J Orthod Dentofacial Orthop 133:641.e1-6. 2008
    ..The objective of this study was to determine the changes in the reflected and transmitted color and the color parameters of esthetic brackets after thermal cycling...
  43. ncbi Changes in surface contour of resin composites after light-curing
    Yong keun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
    Am J Dent 21:108-12. 2008
    ..To determine the changes in free surface contour and volume of resin composites during light-curing by irradiating on half area of a specimen, using a 3-dimensional profilometer...
  44. doi Three-dimensional quantification of adhesive remnants on teeth after debonding
    Yong keun Lee
    Department of Dental Biomaterial Science and Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    Am J Orthod Dentofacial Orthop 134:556-62. 2008
    ..The objective of this study was to determine 3 dimensionally the amount of adhesive remaining on teeth after debonding orthodontic brackets...
  45. ncbi Effect of die spacer thickness on shear bond strength of porcelain laminate veneers
    Seok Hwan Cho
    Department of Dental Biomaterials Science, College of Dentistry and Dental Research Institute, Seoul National University, Korea
    J Prosthet Dent 95:201-8. 2006
    ..The application of die spacer may affect the shear bond strength (SBS) of porcelain laminate veneer (PLV). However, there is no standard for the amount of die spacer necessary for the fabrication of PLV restorations...
  46. doi Correlations between spectroradiometric and spectrophotometric colors of all-ceramic materials
    Ho Nam Lim
    Department of Dental Materials and Center for Dental Materials, Kyung Hee University, Seoul, Republic of Korea
    Dent Mater 26:1052-8. 2010
    ..This study aimed to determine the correlations in the SP- and SR-based color coordinates and color differences of all-ceramic materials...
  47. ncbi Effects of biphasic calcium phosphate bone substitute on circumferential bone defects around dental implants in dogs
    Sungtae Kim
    Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Korea
    Int J Oral Maxillofac Implants 26:265-73. 2011
    ..The aim of this study was to evaluate the effect of biphasic calcium phosphates (BCP) on the healing of circumferential bone defects surrounding dental implants...
  48. ncbi Influence of fluorescent whitening agent on the fluorescent emission of resin composites
    Min Young Park
    Department of Dental Biomaterials Science and Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 23:731-5. 2007
    ..The effects of thermocycling and composition of resin matrix on the fluorescent emission were also determined...
  49. ncbi Influence of filler distribution on the color parameters of experimental resin composites
    Yong Kyu Lim
    Department of Orthodontics, Graduate School of Clinical Dentistry, Korea University, Seoul, Republic of Korea
    Dent Mater 24:67-73. 2008
    ..The objective of this study was to determine the influence of filler size and amount on the color parameters of experimental resin composites...
  50. ncbi Influence of light transmittance and background reflectance on the light curing of adhesives used to bond esthetic brackets
    Yong Kyu Lim
    Department of Orthodontics, Graduate School of Clinical Dentistry, Korea University, Seoul, Korea
    Am J Orthod Dentofacial Orthop 132:5.e17-24. 2007
    ..The influences of curing unit and irradiation time were also determined...
  51. doi Comparative evaluation of three calcium phosphate synthetic block bone graft materials for bone regeneration in rabbit calvaria
    Ji Wan Hwang
    Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seoul120 752, Korea
    J Biomed Mater Res B Appl Biomater 100:2044-52. 2012
    ..Additionally, β-TCP showed a large resorption of graft materials after 4 weeks postsurgery, while there were only small resorption for HA and BCP...
  52. doi The effect of calcium phosphate bone substitute on defect resolution around a rough-surfaced dental implants in dogs
    Sungtae Kim
    Department of Prosthodontics, College of Dentistry, Yonsei University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 99:21-6. 2011
    ..The beneficial effects of filling in 2-mm gap defects around implants were attributed to the use of CaP bone substitute...
  53. ncbi Comparison of tensile and knot security properties of surgical sutures
    Jin Cheol Kim
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    J Mater Sci Mater Med 18:2363-9. 2007
    ..05), and the synthetic monofilament materials showed a tendency to be untied easily. Since no single suture material possesses all of the requirements, proper type and caliber suture should be selected based on this study...
  54. ncbi Effect of calcium phosphate glass on bone formation in calvarial defects of Sprague-Dawley rats
    Hyun Ju Moon
    Research Center for Orofacial Hard Tissue Regeneration, Yonsei University College of Dentistry, Seoul, 120 752, Korea
    J Mater Sci Mater Med 17:807-13. 2006
    ..The particle size of the calcium phosphate was crucial; 400 microm particles promoted new bone formation, while 40 microm particles inhibited it because of severe inflammation...
  55. doi Resolution of surgically created three-wall intrabony defects in implants using three different biomaterials: an in vivo study
    Jung Yoo Choi
    Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, Seodaemun gu, Seoul, Korea
    Clin Oral Implants Res 22:343-8. 2011
    ....
  56. doi Cytotoxicity test of dentin bonding agents using millipore filters as dentin substitutes in a dentin barrier test
    Mi Joo Kim
    Department and Research Institute of Dental Biomaterials and Bioengineering, College of Dentistry, Yonsei University, 50 Yonsei ro, Seodaemun gu, Seoul, 120 752, Republic of Korea
    Clin Oral Investig 17:1489-96. 2013
    ..The purpose of this study was to find proper dentin substitute for standardized dentin barrier test and perform the cytotoxicity test of commercial bonding agents with the proper substitute...
  57. ncbi Frictional forces between lingual brackets and archwires measured by a friction tester
    Ji Hoon Park
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, South Korea
    Angle Orthod 74:816-24. 2004
    ..This new method can be a useful protocol for measurement of frictional force because it can measure the frictional force under the conditions of continuous angular change between bracket and archwire...
  58. ncbi Metameric effect between dental porcelain and porcelain repairing resin composite
    Sung Hee Kim
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Korea
    Dent Mater 23:374-9. 2007
    ..The objectives were to evaluate the metameric color and hue angle (degrees) changes between dental porcelain and porcelain repairing resin composites...
  59. doi Force delivery properties of thermoplastic orthodontic materials
    Jae Sung Kwon
    Department of Dental Biomaterial Science, College of Dentistry, Seoul National University, Seoul, Korea
    Am J Orthod Dentofacial Orthop 133:228-34; quiz 328.e1. 2008
    ..Our objectives were to evaluate the force and energy (resilience) delivery properties of thermoplastic overlay orthodontic materials and to determine the changes in force delivery properties after thermocycling or repeated load cycling...
  60. doi Spectroradiometric and spectrophotometric translucency of ceramic materials
    Ho Nam Lim
    Department of Dental Materials and Center for Dental Materials, School of Dentistry, Kyung Hee University, Seoul, Korea
    J Prosthet Dent 104:239-46. 2010
    ..Furthermore, it is unclear whether there is a correlation between SR- and SP-based translucency values...
  61. doi Influence of orthodontic adhesives and clean-up procedures on the stain susceptibility of enamel after debonding
    Hyun Jin Joo
    Department of Dentistry, Korea University, Seoul, Korea
    Angle Orthod 81:334-40. 2011
    ..Effects of clean-up procedures on the enamel surface were also determined...
  62. ncbi The effect of nanofiller on the opacity of experimental composites
    Jong Jin Kim
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 80:332-8. 2007
    ..Energy-filtering transmission electron microscopy images indicated that the contrast ratio of experimental composites is related to the distribution morphology of the filler particles in the resin matrix...
  63. doi Vitapan 3D-master shade guide showed no fluorescence emission
    Yong keun Lee
    Institute for Clinical Performance of Biomaterials and ETN Dental Clinic, Seoul, Korea
    Indian J Dent Res 23:742-6. 2012
    ..To determine the fluorescence property of Vitapan 3D-Master shade guide tabs with a spectrophotometer...
  64. ncbi Effect of tooth-whitening strips and films on changes in color and surface roughness of resin composites
    Ji Hyung Kim
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    Clin Oral Investig 8:118-22. 2004
    ..Therefore the change in surface roughness was clinically insignificant. We conclude that the influence of tooth-whitening film and strip on the color and surface roughness of dental resin composites was negligible...
  65. ncbi Evaluation of a novel poly(epsilon-caprolactone)-organosiloxane hybrid material for the potential application as a bioactive and degradable bone substitute
    Sang Hoon Rhee
    Department of Dental Materials Science and Dental Research Institute, College of Dentistry, Seoul National University, Seoul 110 749, Korea
    Biomacromolecules 5:1575-9. 2004
    ..This material is likely to have a potential application as a bioactive and degradable bone substitute because of its apatite forming ability, biodegradability, and mechanical properties comparable to those of human cancellous bone...
  66. ncbi Changes in translucency of resin composites after storage in salivary esterase
    Yong keun Lee
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Korea
    J Esthet Restor Dent 17:293-9; discussion 299-302. 2005
    ..Dental resin composites are degraded by salivary enzymes, but the enzymatic influence on the translucency of resin composites has not been determined...
  67. ncbi Changes in optical properties of enamel porcelain after repeated external staining
    Moon Sang Cho
    Department of Dental Biomaterial Science, Dental Research Institute, College of Dentistry, Seoul National University, Korea
    J Prosthet Dent 95:437-43. 2006
    ..After staining a porcelain restoration, increasing the lightness (value) and decreasing the chroma of a restoration is not practically easy to accomplish...
  68. ncbi Quantitative determination of adhesion patterns of cariogenic streptococci to various orthodontic adhesives
    Sug Joon Ahn
    Seoul National University, College of Dentistry, Dental Research Institute and Department of Orthodontics, South Korea
    Angle Orthod 76:869-75. 2006
    ..To investigate the adhesion of various cariogenic streptococci to orthodontic adhesives...
  69. doi Influence of color parameters of resin composites on their translucency
    Bin Yu
    Department of Dental Biomaterials Science and Dental Research Institute and BK 21, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 24:1236-42. 2008
    ..To determine the influence of color parameters and the difference in color parameters by the background on the translucency of resin composites...
  70. doi Comparison of translucency between indirect and direct resin composites
    Si Taek Woo
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
    J Dent 36:637-42. 2008
    ..To measure the translucency of indirect and direct resin composites after curing, and to determine the influence of material and shade group combination on these properties...
  71. doi Correlations between color differences based on three color-difference formulas using dental shade guide tabs
    Jong Gil Kim
    Department of Dental Biomaterials Science, School of Dentistry, Seoul National University, Seoul, Korea
    J Prosthodont 18:135-40. 2009
    ..The purpose of this study was to determine the correlation among color-difference values based on three formulas between shade tab pairs from two shade guides [Vita Lumin (VITA) and Chromascop (CHRO)]...
  72. doi Influence of TiO2 nanoparticles on the optical properties of resin composites
    Bin Yu
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 25:1142-7. 2009
    ..To determine the influence of titanium dioxide (TiO2) nanoparticle addition on the opalescence, color, translucency and fluorescence of experimental resin composites...
  73. doi Comparative evaluation of different crystal-structured calcium sulfates as bone-filling materials
    Kyung Mi Woo
    Department of Cell and Developmental Biology, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, Seoul 110 749, Republic of Korea
    J Biomed Mater Res B Appl Biomater 91:545-54. 2009
    ..The addition of HPMC and fibrin could further improve the feasibility of alphaCS as a bone-filling material...
  74. ncbi Effect of surface treatment and type of cement on the retentive strength of orthodontic bands on gold alloy crowns
    Young Ah Youn
    Department of Dentistry, College of Medicine, Korea University, Seoul, Korea
    Am J Orthod Dentofacial Orthop 132:728.e1-6. 2007
    ..The objective of this study was to evaluate the effect of surface treatment of gold alloy crowns and type of cement on the retentive strength of orthodontic bands cemented on gold alloy crowns...
  75. doi Changes in color and color coordinates of an indirect resin composite during curing cycle
    Sung Hee Kim
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    J Dent 36:337-42. 2008
    ..To measure the color changes of indirect resin composites during curing cycle and to determine the influence of shade group on these changes...
  76. doi Effects of a tetracycline blended polylactic and polyglycolic acid membrane on the healing of one-wall intrabony defects in beagle dogs
    Il Young Kim
    Department of Periodontology, Research Institute for Periodontal Regeneration, College of Dentistry, Yonsei University, 134 Shinchon dong, Seodaemun gu, Seoul 120 752l, Korea
    Biomed Mater 2:S106-10. 2007
    ..It can be concluded that when used for guided tissue regeneration TC-PLGA membranes show a beneficial effect on one-wall intrabony defects in beagle dogs...
  77. doi Measurement of translucency of tooth enamel and dentin
    Bin Yu
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, Seoul, Korea
    Acta Odontol Scand 67:57-64. 2009
    ..To determine the translucency of human and bovine enamel and dentin using reflection spectrophotometers...
  78. doi Difference in opalescence of restorative materials by the illuminant
    Bin Yu
    Department of Dental Biomaterials Science, Dental Research Institute and BK 21 Program, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 25:1014-21. 2009
    ..To determine the differences in the opalescence parameter (OP) of indirect and direct resin composites, veneer ceramics and bovine enamel relative to the CIE standard illuminants D65, A and F2...
  79. ncbi Translucency of varied brand and shade of resin composites
    Bin Yu
    Department of Dental Biomaterials Science, Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
    Am J Dent 21:229-32. 2008
    ..To measure and classify the translucency of varied brands and shades of resin composites...
  80. ncbi Color difference of all-ceramic materials by the change of illuminants
    Bin Yu
    Department of Dental Biomaterials Science, Dental Research Institute and BK 21 Program, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    Am J Dent 22:73-8. 2009
    ..To determine the differences in color and color parameters (lightness, chroma and hue) of simulated layered all-ceramic specimens at a clinically relevant thickness under three CIE standard illuminants...
  81. ncbi Changes in color and color parameters of dental resin composites after polymerization
    Il Jang Kim
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, Seoul, Republic of Korea
    J Biomed Mater Res B Appl Biomater 80:541-6. 2007
    ....
  82. ncbi Fluorescent emission of varied shades of resin composites
    Yong Kyu Lim
    Department of Orthodontics, Graduate School of Clinical Dentistry, Korea University, Seoul, Republic of Korea
    Dent Mater 23:1262-8. 2007
    ....
  83. ncbi Shade distribution of commercial resin composites and color difference with shade guide tabs
    Seung Kook Park
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Korea
    Am J Dent 20:335-9. 2007
    ....
  84. doi Difference in the translucency of all-ceramics by the illuminant
    Jin Soo Ahn
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    Dent Mater 24:1539-44. 2008
    ..The objective of this study was to determine the differences in the translucency parameter (TP) of all-ceramic core, veneer and layered specimens relative to the CIE standard illuminant D(65), A and F2...
  85. doi Differences in color, translucency and fluorescence between flowable and universal resin composites
    Bin Yu
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Republic of Korea
    J Dent 36:840-6. 2008
    ..To evaluate the optical properties such as color, translucency and fluorescence of flowable resin composites, and compare them with the corresponding shade universal resin composites of the same brand...
  86. doi Shade distribution of indirect resin composites compared with a shade guide
    Bong Joon Kim
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, Seoul, Republic of Korea
    J Dent 36:1054-60. 2008
    ....
  87. ncbi Effect of thermocycling on optical parameters of resin composites by the brand and shade
    Seung Hun Lee
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Korea
    Am J Dent 21:361-7. 2008
    ....
  88. doi Lightness, chroma, and hue distributions of a shade guide as measured by a spectroradiometer
    Yong keun Lee
    Denforus Co, Seoul, Korea
    J Prosthet Dent 104:173-81. 2010
    ..However, there is limited information on the color distribution of shade guides as measured by spectroradiometers (SR), which are capable of measuring the color of curved surfaces...
  89. doi Effects of TEGDMA and HEMA on the expression of COX-2 and iNOS in cultured murine macrophage cells
    Dong Hee Lee
    Department of Dental Biomaterials Science and Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeonkun dong, ChongRo Ku, Seoul 110 749, South Korea
    Dent Mater 25:240-6. 2009
    ..7...
  90. doi Influence of surface layer removal of shade guide tabs on the measured color by spectrophotometer and spectroradiometer
    Jin Cheol Kim
    Department of Dental Biomaterials Science, Dental Research Institute and BK21 Program, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, 110749 Seoul, Republic of Korea
    J Dent 36:1061-7. 2008
    ....
  91. doi Opalescence of all-ceramic core and veneer materials
    Moon Sang Cho
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Seoul, Republic of Korea
    Dent Mater 25:695-702. 2009
    ..The objective of this study was to determine the opalescence of all-ceramic core, veneer and layered specimens with a color measuring spectrophotometer...
  92. doi Measurement of discolouration of orthodontic elastomeric modules with a digital camera
    Sung Hee Kim
    Department of Dental Biomaterials Science and Dental Research Institute, School of Dentistry, Seoul National University, Korea
    Eur J Orthod 31:556-62. 2009
    ..Therefore, discolouration of elastomeric modules was a result of chemical degradation as well as staining in the early stages but in the later stages was due only to simple staining...
  93. ncbi Comparison of the color stability of flowable and universal resin composites
    Bin Yu
    Department of Dental Biomaterials Science, School of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    Am J Dent 22:160-4. 2009
    ..To evaluate the color stability of flowable resin composites after ultraviolet (UV) irradiation and thermocycling, and to compare the color stability with the corresponding shade universal resin composites of the same brand...
  94. ncbi Difference in illuminant-dependent color changes of shade guide tabs by the shade designation relative to three illuminants
    Hyun Suk Cha
    Department of Dentistry, College of Medicine, University of Ulsan, Asan Medical Center, Seoul, Korea
    Am J Dent 22:350-6. 2009
    ..To determine the difference in illuminant-dependent color changes of shade guide tabs of Vita Lumin (VITA), Chromascop (CHRO) and Vita 3D-Master (3D-M) shade guides by the shade designation in each shade guide...
  95. ncbi Color characteristics of low-chroma and high-translucence dental resin composites by different measuring modes
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Seoul, Korea
    J Biomed Mater Res 58:613-21. 2001
    ..After polymerization, DeltaE* measured under illuminant A was generally higher than that under D65 or C (p < 0.01). After thermocycling, the color change was different depending on the color-measuring geometry and standard illuminant...
  96. ncbi Color and optical properties of resin-based composites for bleached teeth after polymerization and accelerated aging
    Y K Lee
    Department of Dental Biomaterials, College of Dentistry, Seoul National University, Korea
    Am J Dent 14:349-54. 2001
    ..4 and 5.8, and those of conventional shade were 1.7 and 2.9, respectively. Higher a* and b* values had a negative influence on the color change for both polymerization and aging...
  97. ncbi Research on annihilation of cancer cells by glass-ceramics for cancer treatment with external magnetic field. I. Preparation and cytotoxicity
    S H Oh
    Materials Science and Engineering School, Yonsei University College of Engineering, Seoul, Korea
    J Biomed Mater Res 54:360-5. 2001
    ..0 and 388.2 Oe in all heat-treatment conditions. As a result of a preclinical evaluation of biocompatibility by agar diffusion test with L929 cells, both as-quenched and heat-treated glasses could be biocompatible...
  98. ncbi Influence of porcine liver esterase on the color of dental resin composites by CIEDE2000 system
    Seung Heon Kim
    Department of Dental Biomaterials Science, College of Dentistry, Seoul National University, Jongro Gu, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 72:276-83. 2005
    ..There was a significant correlation between color differences (delta E00 vs deltaE*ab) with CIEDE2000 and CIELAB systems [correlation coefficient (r) = 0.95, p < 0.01]...
  99. ncbi Changes in surface characteristics of dental resin composites after polishing
    Mi Sook Choi
    Department of Dental Biomaterials Science, College of Dentistry and Intellectual Biointerface Engineering Center, Seoul National University, Korea
    J Mater Sci Mater Med 16:347-53. 2005
    ..01). Changes in R(a) value after polishing was insignificant in most cases...
  100. ncbi Phosphoric acid incorporated with acidulated phosphate fluoride gel etchant effects on bracket bonding
    Min Jeong Kim
    Dental Biomaterials Science, College of Dentistry, Seoul National University, Seoul, South Korea
    Angle Orthod 75:678-84. 2005
    ....
  101. ncbi Influence of a series of organic and chemical substances on the translucency of resin composites
    Ji Hyung Kim
    Department of Dental Biomaterials Science, Dental Research Institute, College of Dentistry, Seoul National University, 28 Yeongeon dong, Jongro Gu, Seoul, Korea
    J Biomed Mater Res B Appl Biomater 77:21-7. 2006
    ..It is a possibility that the high changes in TP after immersion in methylene blue is an indication of dye absorption which might be an indication of the degree of resin composite degradation...