E Asmussen

Summary

Affiliation: University of Copenhagen
Country: Denmark

Publications

  1. ncbi request reprint Finite element analysis of stresses in endodontically treated, dowel-restored teeth
    Erik Asmussen
    Department of Dental Materials, Faculty of Health Sciences, School of Dentistry, University of Copenhagen, 20 Nørre Allé, DK 2200 Copenhagen N, Denmark
    J Prosthet Dent 94:321-9. 2005
  2. ncbi request reprint Flexural strength and modulus of a step-cured resin composite
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
    Acta Odontol Scand 62:87-90. 2004
  3. ncbi request reprint Influence of selected components on crosslink density in polymer structures
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Eur J Oral Sci 109:282-5. 2001
  4. ncbi request reprint The influence of relative humidity on the effect of dentin bonding systems
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    J Adhes Dent 3:123-7. 2001
  5. ncbi request reprint Short- and long-term bonding efficacy of a self-etching, one-step adhesive
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 5:41-5. 2003
  6. ncbi request reprint Bonding of resin cements to post materials: influence of surface energy characteristics
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 7:231-4. 2005
  7. ncbi request reprint Polymerization contraction of resin composite vs. energy and power density of light-cure
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
    Eur J Oral Sci 113:417-21. 2005
  8. ncbi request reprint Light-emitting diode curing: influence on selected properties of resin composites
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    Quintessence Int 34:71-5. 2003
  9. ncbi request reprint Resin composites: strength of the bond to dentin versus surface energy parameters
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, 20 Nørre Allé, DK 2200 Copenhagen N, Denmark
    Dent Mater 21:1039-43. 2005
  10. ncbi request reprint Temperature rise induced by some light emitting diode and quartz-tungsten-halogen curing units
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, 20 Norre Alle, DK 2000 Copenhagen N, Denmark
    Eur J Oral Sci 113:96-8. 2005

Collaborators

Detail Information

Publications48

  1. ncbi request reprint Finite element analysis of stresses in endodontically treated, dowel-restored teeth
    Erik Asmussen
    Department of Dental Materials, Faculty of Health Sciences, School of Dentistry, University of Copenhagen, 20 Nørre Allé, DK 2200 Copenhagen N, Denmark
    J Prosthet Dent 94:321-9. 2005
    ..Endodontically-treated, dowel-restored teeth may experience fracture, but investigations of variables related to fracture are often inconclusive and occasionally contradictory...
  2. ncbi request reprint Flexural strength and modulus of a step-cured resin composite
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
    Acta Odontol Scand 62:87-90. 2004
    ..The results were explained by probable differences in degree of conversion and cross-link density of the polymer network...
  3. ncbi request reprint Influence of selected components on crosslink density in polymer structures
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Eur J Oral Sci 109:282-5. 2001
    ..Composition influenced not only remaining double bonds but also the crosslink density of the resulting polymer structures...
  4. ncbi request reprint The influence of relative humidity on the effect of dentin bonding systems
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    J Adhes Dent 3:123-7. 2001
    ..The aim of the study was to measure the influence of relative humidity of the ambient air on bond strength to enamel and dentin of six different bonding systems. In this manner, the role of the primer solvent was assessed...
  5. ncbi request reprint Short- and long-term bonding efficacy of a self-etching, one-step adhesive
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 5:41-5. 2003
    ..The bond strengths were measured both with a light- and with a self-curing resin composite. Multistep bonding systems served as controls...
  6. ncbi request reprint Bonding of resin cements to post materials: influence of surface energy characteristics
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 7:231-4. 2005
    ....
  7. ncbi request reprint Polymerization contraction of resin composite vs. energy and power density of light-cure
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
    Eur J Oral Sci 113:417-21. 2005
    ....
  8. ncbi request reprint Light-emitting diode curing: influence on selected properties of resin composites
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    Quintessence Int 34:71-5. 2003
    ..Two recently marketed light-emitting diode polymerization units were compared with a conventional halogen curing unit. Selected properties of resin composites polymerized with the three curing units were determined...
  9. ncbi request reprint Resin composites: strength of the bond to dentin versus surface energy parameters
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, 20 Nørre Allé, DK 2200 Copenhagen N, Denmark
    Dent Mater 21:1039-43. 2005
    ..The bond was tested with six resin composites. It was hypothesized that the surface energy parameters of composite and adhesive-treated dentin would influence the bond strength...
  10. ncbi request reprint Temperature rise induced by some light emitting diode and quartz-tungsten-halogen curing units
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, 20 Norre Alle, DK 2000 Copenhagen N, Denmark
    Eur J Oral Sci 113:96-8. 2005
    ..Previous findings, that LED curing units induce less temperature rise than QTH units, does not hold true in general...
  11. ncbi request reprint Two-step curing: influence on conversion and softening of a dental polymer
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, 20 Nørre Allé, DK 2200 Copenhagen N, Denmark
    Dent Mater 19:466-70. 2003
    ..The study investigates the influence of two-step curing of a BisGMA/TEGDMA based polymer on degree of conversion (DC) and on hardness before and after 1 day ethanol storage...
  12. ncbi request reprint Strengthening effect of aluminum fluoride added to resin composites based on polyacid-containing polymer
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Nørre Allé 20, Copenhagen N DK 2200, Denmark
    Dent Mater 19:620-4. 2003
    ..The study investigates the possible strengthening effect of aluminum ions liberated during long-time water storage of experimental resin composites containing a polymer with carboxylic acid groups...
  13. ncbi request reprint Influence of pulse-delay curing on softening of polymer structures
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    J Dent Res 80:1570-3. 2001
    ..The softness increased with the intensity of the pre-cure and with the waiting time before final cure. The increased softening may be interpreted as the manifestation of a polymer structure having fewer crosslinks...
  14. ncbi request reprint The effect of secondary curing of resin composite on the adherence of resin cement
    E Asmussen
    Department of Dental Materials, School of Dentistry, 20 Norre Alle, DK 2200 Copenhagen N, Denmark
    J Adhes Dent 2:315-8. 2000
    ..The aim of this study was to measure the adherence between a resin cement and a resin composite polymerized with and without an additional secondary cure of the resin composite...
  15. ncbi request reprint Bonding of dual-curing resin cements to dentin
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 8:299-304. 2006
    ....
  16. ncbi request reprint Bonding of resin cements to a metal substrate: influence of pretreatment on the adherence energy
    E Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Eur J Oral Sci 104:595-9. 1996
    ..The observed increases in adherence energy may be due to an increase in polar interactions at the interface between adhesive and substrate...
  17. ncbi request reprint The role of maleic anhydride in adhesive resin cements
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Eur J Oral Sci 106:882-6. 1998
    ..These reductions were particularly pronounced in non-irradiated specimens. The use of resin cements containing maleic anhydride is not a viable means of conveying adhesiveness to resin cements...
  18. ncbi request reprint Stiffness, elastic limit, and strength of newer types of endodontic posts
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    J Dent 27:275-8. 1999
    ..To determine the stiffness, elastic limit, and strength of a selection of endodontic posts recently introduced onto the market...
  19. ncbi request reprint Direction of shrinkage of light-curing resin composites
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Acta Odontol Scand 57:310-5. 1999
    ..It was concluded that under the conditions of the present study, the direction of shrinkage was the result of an interplay between the direction of the light, the attachment of the material, and the thickness of the material...
  20. ncbi request reprint Substitutes for methylene chloride as dental softening agent
    E Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Eur J Oral Sci 108:335-40. 2000
    ..Because of the variation in polarity, the calculated solubility parameter was not a reliable predictor of softening efficacy of the investigated compounds...
  21. ncbi request reprint Class I and Class II restorations of resin composite: an FE analysis of the influence of modulus of elasticity on stresses generated by occlusal loading
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, 20 Nørre Allé, 2200 Copenhagen N, Denmark
    Dent Mater 24:600-5. 2008
    ..On the basis of available information on the influence of the modulus of elasticity, the research hypothesis was that the marginal stresses would decrease with increasing modulus of elasticity of the restoration...
  22. ncbi request reprint Influence of eugenol-containing temporary cement on efficacy of dentin-bonding systems
    A Peutzfeldt
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Eur J Oral Sci 107:65-9. 1999
    ..No differences were found in either wall-to-wall contraction or in bond strength between the three groups for either dentin-bonding system. Thus, the ZOE cement did not influence the efficacy of two relatively new dentin-bonding systems...
  23. ncbi request reprint Long-term fluoride release from a glass ionomer cement, a compomer, and from experimental resin composites
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Acta Odontol Scand 60:93-7. 2002
    ..The release, however, was significantly lower than that from the glass ionomer cement and the compomer and ranged from 1.2 +/- 0.07 to 42 +/- 3.9 microg/cm2 at 1 year and from 2.3 +/- 0.16 to 79 +/- 6 microg/cm2 at 3 years...
  24. ncbi request reprint Soft-start polymerization and marginal gap formation in vitro
    A Sahafi
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Am J Dent 14:145-7. 2001
    ..CLINICAL SIGNIFICANCE: The soft-start polymerization procedures studied did not improve the marginal adaptation of two resin composites bonded to dentin cavities compared with conventional polymerization...
  25. ncbi request reprint Improved efficacy of dentin-bonding agents
    E K Hansen
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Eur J Oral Sci 105:434-9. 1997
    ..The reason for this improvement may be that glutaraldehyde cross-links the collagen fibers and thereby strengthens the organic part of the hybrid layer, however, other mechanisms might also play a rôle in the improvement found...
  26. ncbi request reprint The effect of postcuring on quantity of remaining double bonds, mechanical properties, and in vitro wear of two resin composites
    A Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    J Dent 28:447-52. 2000
    ..The postcuring methods involved devices for inlay curing as well as devices present for other purposes in many dental laboratories or dental offices...
  27. ncbi request reprint Influence of UEDMA BisGMA and TEGDMA on selected mechanical properties of experimental resin composites
    E Asmussen
    Department of Dental Materials, University of Copenhagen, Denmark
    Dent Mater 14:51-6. 1998
    ..This study was conducted to determine the effect of UEDMA, BisGMA and TEGDMA on selected mechanical properties of experimental resin composites...
  28. ncbi request reprint Effect of pulse-delay curing on in vitro wall-to-wall contraction of composite in dentin cavity preparations
    A Sahafi
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Am J Dent 14:295-6. 2001
    ..RESULTS: Pulse-delay curing in combination with a waiting time of at least 1 minute between exposures reduced wall-to-wall contraction in dentin cavities compared to continuous-cure control...
  29. ncbi request reprint Surface energy characteristics of adhesive monomers
    E Asmussen
    Department of Dental Materials, University of Copenhagen, Denmark
    Dent Mater 14:21-8. 1998
    ..The aim of the investigation was to determine the surface free-energy components of potentially adhesive monomer mixtures...
  30. ncbi request reprint Characterization of resin composites polymerized with plasma arc curing units
    A Peutzfeldt
    Department of Dental Materials, University of Copenhagen, DK 2200 Copenhagen N, Denmark
    Dent Mater 16:330-6. 2000
    ..This study was conducted to determine a number of characteristics of resin composites polymerized by plasma arc curing units...
  31. ncbi request reprint Elution of TEGDMA and BisGMA from a resin and a resin composite cured with halogen or plasma light
    E C Munksgaard
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Eur J Oral Sci 108:341-5. 2000
    ..It was concluded that the plasma arc light curing unit did not provide optimal cure when used as recommended by the manufacturer...
  32. ncbi request reprint Effect of propanal and diacetyl on quantity of remaining double bonds of chemically cured BisGMA/TEGDMA resins
    A Peutzfeldt
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Eur J Oral Sci 104:309-12. 1996
    ..The most likely common reaction mechanism of propanal and diacetyl seemed to be that of chain transfer reactions. Furthermore, analysis of the data indicated a possible additional photoinitiating function of diacetyl...
  33. ncbi request reprint Resistance to cyclic loading of teeth restored with posts
    A Sahafi
    Department of Prosthetic Dentistry, School of Dentistry, University of Copenhagen, Norre Alle 20, DK 2200, Copenhagen N, Denmark
    Clin Oral Investig 9:84-90. 2005
    ..Surface treatment of posts significantly increased the resistance to cyclic loading compared with untreated posts. When posts are used, surface treatment is recommended...
  34. ncbi request reprint Resin composite properties and energy density of light cure
    A Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, 20 Nørre Allé, 2200 Copenhagen N, Denmark
    J Dent Res 84:659-62. 2005
    ..Flexural strength and modulus showed a maximum at intermediate power density. Within clinically relevant power densities, not only energy density but also power density per se had significant influence on resin composite properties...
  35. pmc A survey of failed post-retained restorations
    A Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Norre Alle 20, 2200, Copenhagen, Denmark
    Clin Oral Investig 12:37-44. 2008
    ..On the basis of this survey of failed post-retained restorations, it was concluded that tapered posts were associated with a higher risk of tooth fracture than were parallel-sided posts...
  36. ncbi request reprint Short- and long-term in vitro study of the bonding of eight commercial adhesives to normal and deproteinized dentin
    Tomoko Abo
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    Acta Odontol Scand 64:237-43. 2006
    ....
  37. ncbi request reprint Determinants of in vitro gap formation of resin composites
    Anne Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, 20 Norre Alle, DK 2200, Copenhagen N, Denmark
    J Dent 32:109-15. 2004
    ..To investigate whether polymerization shrinkage, flow, modulus, and bond strength influence marginal gap formation of resin composite restorations in vitro...
  38. ncbi request reprint Influence of eugenol-containing temporary cement on bonding of self-etching adhesives to dentin
    Anne Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    J Adhes Dent 8:31-4. 2006
    ..To investigate the influence of eugenol-containing temporary cement on bonding of resin composite to dentin mediated by self-etching adhesives...
  39. ncbi request reprint Influence of composition on rate of polymerization contraction of light-curing resin composites
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Denmark
    Acta Odontol Scand 60:146-50. 2002
    ..It was concluded that intrinsic slow cure may be obtained with certain compositions of resin composites without impairing the final extent of polymerization...
  40. ncbi request reprint Composite restorations: influence of flowable and self-curing resin composite linings on microleakage in vitro
    Anne Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Oper Dent 27:569-75. 2002
    ....
  41. ncbi request reprint Adhesive systems: effect on bond strength of incorrect use
    Anne Peutzfeldt
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 4:233-42. 2002
    ..The aim of this in vitro study was to determine the influence of deviations from the manufacturer's instructions for use of six adhesive systems on the bond strength of resin composite to enamel and dentin...
  42. ncbi request reprint Polymer structure of a light-cured resin composite in relation to distance from the surface
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, 20 Norre Alle, DK 2200 Copenhagen N, Denmark
    Eur J Oral Sci 111:277-9. 2003
    ..5-2.5 mm. This result was explained by a slower polymerization occurring at the greater distances from the irradiated surface, resulting in a polymer with reduced crosslink density...
  43. ncbi request reprint Retention and failure morphology of prefabricated posts
    Alireza Sahafi
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Denmark
    Int J Prosthodont 17:307-12. 2004
    ..This study evaluated the effect of cement, post material, surface treatment, and shape (1) on the retention of posts luted in the root canals of extracted human teeth and (2) on the failure morphology...
  44. ncbi request reprint Influence of specimen diameter on the relationship between subsurface depth and hardness of a light-cured resin composite
    Erik Asmussen
    Department of Dental Materials, School of Dentistry, Faculty of Health Sciences, University of Copenhagen, Copenhagen, Denmark
    Eur J Oral Sci 111:543-6. 2003
    ..0 mm, 3.5 mm, and 4.0 mm, respectively. The heat production and reflection of light from the walls of the molds may explain the latter, but not the former finding...
  45. ncbi request reprint Bond strength of resin cement to dentin and to surface-treated posts of titanium alloy, glass fiber, and zirconia
    Alireza Sahafi
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    J Adhes Dent 5:153-62. 2003
    ..To determine the effect of surface treatments on bond strength of two resin cements (ParaPost Cement and Panavia F) to posts of titanium alloy (ParaPost XH), glass fiber (ParaPost Fiber White), and zirconia (Cerapost), and to dentin...
  46. ncbi request reprint Effect of surface treatment of prefabricated posts on bonding of resin cement
    Alireza Sahafi
    Department of Dental Materials, School of Dentistry, University of Copenhagen, Copenhagen, Denmark
    Oper Dent 29:60-8. 2004
    ..The bonding of both resin cements to zirconia posts was improved by Cojet treatment, while sandblasting, followed by silane application, improved bonding of Panavia F...
  47. ncbi request reprint Class II restorations: influence of a liner with rubbery qualities on the occurrence and size of cervical gaps
    Magali Dewaele
    Laboratory of Chemistry and Physics of High Polymers, Universite Catholique de Louvain, Louvain la Neuve, Belgium
    Eur J Oral Sci 114:535-41. 2006
    ....
  48. ncbi request reprint Effect of evaporation of solvents from one-step, self-etching adhesives
    Adilson Yoshio Furuse
    Department of Operative Dentistry, Endodontics and Dental Materials, Bauru School of Dentistry, University of Sao Paulo, Bauru, Sao Paulo, Brazil
    J Adhes Dent 10:35-9. 2008
    ..To investigate whether and to what extent the bonding capacity of one-step, self-etching adhesives is influenced by the degree to which solvent is evaporated...