Research Topics
| J B LudlowSummaryAffiliation: University of North Carolina Country: USA Publications
| Collaborators
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Detail Information
Publications
Evaluation of tuned-aperture computed tomography in the detection of simulated periodontal defectsAruna Ramesh
Division of Oral and Maxillofacial Radiology, Department of General Dentistry, Tufts University School of Dental Medicine, Boston, Mass 02111, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 93:341-9. 2002..The objective of this study was to compare the diagnostic efficacy of tuned-aperture computed tomography (TACT) and conventional film for the detection of simulated periodontal defects...- Dosimetry of two extraoral direct digital imaging devices: NewTom cone beam CT and Orthophos Plus DS panoramic unitJ B Ludlow
Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, Chapel Hill, North Carolina 27599, USA
Dentomaxillofac Radiol 32:229-34. 2003..This study provides effective dose measurements for two extraoral direct digital imaging devices, the NewTom 9000 cone beam CT (CBCT) unit and the Orthophos Plus DS panoramic unit... - Dosimetry of 3 CBCT devices for oral and maxillofacial radiology: CB Mercuray, NewTom 3G and i-CATJ B Ludlow
Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, Chapel Hill, NC 27599 7450, USA
Dentomaxillofac Radiol 35:219-26. 2006..This study provides comparative measurements of effective dose for three commercially available, large (12'') field-of-view (FOV), CBCT units: CB Mercuray, NewTom 3G and i-CAT... - Accuracy of measurements of mandibular anatomy in cone beam computed tomography imagesJohn B Ludlow
Department of Diagnostic Sciences and General Dentistry, University of North Carolina, Chapel Hill, NC 27599 7450, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 103:534-42. 2007..Image measurements were compared with caliper measurements of the skulls... - Patient risk related to common dental radiographic examinations: the impact of 2007 International Commission on Radiological Protection recommendations regarding dose calculationJohn B Ludlow
Department of Diagnostic Sciences, University of North Carolina School of Dentistry, Chapel Hill, NC 27599 7450, USA
J Am Dent Assoc 139:1237-43. 2008..The authors conducted a study to reassess patients' risk related to common dental radiographic exposures using the 2007 ICRP recommendations... - Accuracy of measurements of mandibular anatomy and prediction of asymmetry in panoramic radiographic imagesW S Laster
Department of Diagnostic Sciences and General Dentistry, UNC School of Dentistry, Chapel Hill, NC 27599 7450, USA
Dentomaxillofac Radiol 34:343-9. 2005..Measurements of ideally positioned and systematically mis-positioned skulls were used to evaluate errors in linear measurements and symmetry ratios made with panoramic X-ray images... - Comparative dosimetry of dental CBCT devices and 64-slice CT for oral and maxillofacial radiologyJohn B Ludlow
Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, Chapel Hill, North Carolina 27599 7450, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 106:106-14. 2008..This study compares 2 measures of effective dose, E(1990) and E(2007), for 8 dentoalveolar and maxillofacial cone-beam computerized tomography (CBCT) units and a 64-slice multidetector CT (MDCT) unit... - Precision of cephalometric landmark identification: cone-beam computed tomography vs conventional cephalometric viewsJohn B Ludlow
Department of Diagnostic Sciences and General Dentistry, School of Dentistry, University of North Carolina, Chapel Hill, NC 27599 7450, USA
Am J Orthod Dentofacial Orthop 136:312.e1-10; discussion 312-3. 2009..In this study, we compared the precision of landmark identification using displays of multi-planar cone-beam computed tomographic (CBCT) volumes and conventional lateral cephalograms (Ceph)... - A manufacturer's role in reducing the dose of cone beam computed tomography examinations: effect of beam filtrationJ B Ludlow
Department of Diagnostic Sciences and General Dentistry, 1008 Tarson Hall, The University of North Carolina School of Dentistry, Chapel Hill, North Carolina 27599 7450, USA
Dentomaxillofac Radiol 40:115-22. 2011..The dosimetry of the Kodak 9500 cone beam CT (CBCT) unit (Carestream Health, Rochester, NY) was measured before and after installation of copper filtration... - Characteristics of Kodak Insight, an F-speed intraoral filmJ B Ludlow
Department of Diagnostic Sciences and General Dentistry, University of North Carolina at Chapel Hill, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 91:120-9. 2001..This study reports film speed, contrast, exposure latitude, resolution, and response to processing solution depletion of Kodak Insight intraoral film... - Image-receptor performance: a comparison of Trophy RVG UI sensor and Kodak Ektaspeed Plus filmJ Ludlow
Department of Diagnostic Sciences and General Dentistry, University of North Carolina at Chapel Hill, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 91:109-19. 2001..Objective. This study compares the physical characteristics of the RVG UI sensor (RVG) with Ektaspeed Plus film... - A comparison of Web page and slide/tape for instruction in periapical and panoramic radiographic anatomyJ B Ludlow
Diagnostic Sciences and General Dentistry Department, University of North Carolina School of Dentistry, Chapel Hill 27599 7450, USA
J Dent Educ 64:269-75. 2000..While 71 percent of the students preferred WP technology, this preference appears to be related to ease of use and facilitation of flexible learning styles rather than improved didactic performance... - Tuned aperture computed tomography and detection of recurrent cariesM K Nair
Department of Diagnostic Sciences, UNC CH School of Dentistry, Chapel Hill, N C 27599 7450, USA
Caries Res 32:23-30. 1998..0001). The results suggest that TACT images hold promise as a more effective imaging modality than film or direct digital systems for detection of recurrent caries... - Analysis of fractal dimensions of rat bones from film and digital imagesS Pornprasertsuk
Department of Diagnostic Sciences and General Dentistry, School of Dentistry, University of North Carolina at Chapel Hill, NC 27599-7450, USA
Dentomaxillofac Radiol 30:179-83. 2001..CONCLUSIONS: Different types of image receptors significantly affect estimates of fractal dimension. There was no difference in the fractal dimensions of the different bones but the three regions differed significantly... - Performance of a new F-speed film for caries detectionJ B Ludlow
Diagnostic Sciences and General Dentistry Department, University of North Carolina School of Dentistry, Chapel Hill 27599-7450, USA
Dentomaxillofac Radiol 30:110-3. 2001..42). CONCLUSIONS: The performance of the new F-speed film was not statistically different from E or D speed for caries detection. This film shows promise as a means of reducing patient dose while maintaining diagnostic quality... - Accuracy of mandibular cross-sectional imaging with tuned- aperture computed tomography (TACT), iteratively reconstructed TACT, and multidirectional, linear, and transverse panoramic tomographyH Liang
Department of Diagnostic Sciences, Baylor College of Dentistry, Dallas, TX 75266 0677, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 91:594-602. 2001..The modalities tested were tuned-aperture computed tomography (TACT), iteratively reconstructed TACT, multidirectional tomography, linear tomography, and transverse panoramic tomography... - Quantification of condylar resorption in temporomandibular joint osteoarthritisL H S Cevidanes
Department of Orthodontics, University of North Carolina School of Dentistry, Chapel Hill, North Carolina 27599, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 110:110-7. 2010..This study was performed to determine the condylar morphologic variation of osteoarthritic (OA) and asymptomatic temporomandibular joints (TMJs) and to determine its correlation with pain intensity and duration... - Evaluation of a new digital panoramic system: a comparison with filmA Ramesh
Section of Oral and Maxillofacial Radiology, Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, Chapel Hill 27599, USA
Dentomaxillofac Radiol 30:98-100. 2001.... - Comparison of conventional and cone beam CT synthesized cephalogramsV Kumar
Oral and Maxillofacial Radiology Program, The University of North Carolina at Chapel Hill, Chapel Hill, NC 27599 7450, USA
Dentomaxillofac Radiol 36:263-9. 2007..To compare cephalometric measurements from synthesized cone beam CT (CBCT) lateral cephalograms using orthogonal and perspective projections with those from conventional cephalometric radiographs and dry skulls... - Comparison between PAI and quantitative digital radiographic assessment of apical healing after endodontic treatmentE O Delano
Diagnostic Sciences and General Dentistry Department, University of North Carolina, Chapel Hill, NC 27599, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 92:108-15. 2001..The purpose of this study was to compare both subjective (Periapical Index, PAI) and objective (densitometric) radiographic evaluation of healing after endodontic treatment for apical periodontitis... - Comparison of conventional and TACT (Tuned Aperture Computed Tomography) digital subtraction radiography in detection of pericrestal bone-gainOnanong Chai-U-Dom
Department of Radiology, Faculty of Dentistry, Chulalongkorn University, Bangkok, Thailand
J Periodontal Res 37:147-53. 2002..001) and for the smallest bone mass (p = 0.024). The findings support TACT-DSR's potential to provide greater sensitivity and technique flexibility in detecting periodontal bone-gain than standard DSR... - Correlating cone beam CT results with temporomandibular joint pain of osteoarthritic originG Palconet
University of North Carolina, Chapel Hill School of Dentistry, NC 27599 7455, USA
Dentomaxillofac Radiol 41:126-30. 2012..The purpose of this study was to determine whether bony changes in temporomandibular joint (TMJ) osteoarthritis (OA) is correlated with pain and other clinical signs and symptoms... - Evaluation of a bioadhesive device for the management of aphthous ulcersM J Kutcher
Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, CB 7450 Brauer Hall, Chapel Hill, N C 27599 7450, USA
J Am Dent Assoc 132:368-76. 2001..Aphthous ulcers are common and painful. Current treatments are palliative and focused on pain reduction. This article reports on the clinical trials of a novel, bioadhesive treatment modality... - Fractal dimension analysis of weight-bearing bones of rats during skeletal unloadingS Pornprasertsuk
Department of Diagnostic Science and General Dentistry, School of Dentistry, University of North Carolina, Chapel Hill, 27599-7455, USA
Bone 29:180-4. 2001..Thus, fractal analysis could be a useful technique to evaluate the structural changes of bone... - Effect of data compression on proximal caries detection: observer performance with DenOptix photostimulable phosphor imagesT Pabla
Oral and Maxillofacial Radiology, University of North Carolina, Chapel Hill, NC, USA
Dentomaxillofac Radiol 32:45-9. 2003..To study the effect of lossy image compression on caries detection. Null hypothesis states no difference in caries detection efficacy among observers using original digital images versus images compressed at various rates of compression... - The effect of lighting conditions on caries interpretation with a laptop computer in a clinical settingMark J Kutcher
Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, Chapel Hill, NC 27599-7450, USA
Oral Surg Oral Med Oral Pathol Oral Radiol Endod 102:537-43. 2006..CONCLUSION: The ability to detect caries by experienced clinicians may be improved by hooding laptop displays in bright clinical environments... - Interactive computer-assisted instruction vs. lecture format in dental educationW Bruce Howerton
Department of Diagnostic Sciences and General Dentistry, University of North Carolina School of Dentistry, Chapel Hill, USA
J Dent Hyg 78:10. 2004..05). RESULTS: There was no significant difference between pre- and post-test outcomes, indicating that similar learning took place using the interactive CD and/or lecture format. However, students preferred CAI to lecture format... - Tuned aperture computed tomography (TACT) for cross-sectional implant site assessment in the posterior mandibleBehnoush Rashedi
Department of Restorative Dentistry, School of Dental Medicine, University of Pennsylvania, 4001 Spruce Street, Philadelphia, PA 19104 6003, USA
J Prosthodont 12:176-86. 2003..This study was designed to optimize a new radiographic modality known as tuned aperture computed tomography (TACT) for cross-sectional imaging of implant sites in human dry mandibles... - Resolution of digitized intraoral dental filmsJohn B Ludlow
Dentomaxillofac Radiol 33:208; author reply 208-9. 2004 - A comparison of slide/audiotape and Web-based instructional formats for teaching normal intraoral radiographic anatomyDeborah E Fleming
Department of Dental Hygiene, Baltimore College of Dental Surgery, University of Maryland, Baltimore, USA
J Dent Hyg 77:27-35. 2003..CONCLUSIONS: A variety of learning styles and preferences may be accommodated when substituting Web-based self-instruction for slide/audiotape self-instruction in normal radiographic anatomy... - Proximal caries detection: Sirona Sidexis versus Kodak Ektaspeed PlusEmad A Khan
Faculty of Dentistry, King Abdulaziz University, Jeddah, Saudi Arabia
Gen Dent 53:43-8. 2005..Areas under ROC curves (Az) were assessed through a paired t-test. The performance of the CCD-based intraoral sensor was not different statistically from Ektaspeed Plus film in detecting proximal caries... - Pre-clinical performance comparing intraoral film and CCD-based systemsTracey Malarkey Sommers
Lorain County Community College, Elyria, Ohio, USA
J Dent Hyg 76:26-33. 2002..CONCLUSION: In pre-clinical situations, the CCD system may be an effective tool for teaching technique. Radiographic errors are dependent on the type of image receptor used...