D E P A R T M E N T S:

GUEST EDITORIAL:

Toxicology of Dental Materials and ‘Clinical Experience’

Werner Geurtsen
The author argues that the absence of clinical evidence does not mean that TEGDMA is not harmful over time.

J Dent Res 2003 82: 500. [Full Text] [PDF]  

DISCOVERY!:

On Golden Pond: The Value of Collaboration and Life-long Learning

Alexia Antczak Bouckoms
The author reminds readers that there is always something to be learned, and that everyone has a responsibility to expand the knowledge base.

J Dent Res 2003 82: 501-503. [Full Text] [PDF]  

R E S E A R C H  R E P O R T S:

Clinical:

A Longitudinal Study of Streptococcus mutans Colonization in Infants after Tooth Eruption

A.K.L. Wan, W.K. Seow, D.M. Purdie, P.S. Bird, L.J. Walsh, and D.I. Tudehope
The authors establish the timing of S. mutans colonization in children from birth to 24 months of age.

J Dent Res 2003 82: 504-508. [Abstract] [Full Text] [Figures Only] [PDF] [Appendix]  

Alcohol Consumption Increases Periodontitis Risk

W. Pitiphat, A.T. Merchant, E.B. Rimm, and K.J. Joshipura
This is the first prospective study to evaluate alcohol consumption as a risk factor for periodontitis.

J Dent Res 2003 82: 509-513. [Abstract] [Full Text] [Figures Only] [PDF]  

Analysis of Multiple 2x2 Tables with Site-specific Periodontal Data

K.S. Panageas, M.D. Begg, J.T. Grbic, and I.B. Lamster
The authors present two methods for analyzing multiple 2x2 tables containing site-specific periodontal data.

J Dent Res 2003 82: 514-517. [Abstract] [Full Text] [PDF] [Appendix]  

Reliability of Clinical Parameters for Predicting the Outcome of Oral Malodor Treatment

M. Tanaka, H. Anguri, N. Nishida, M. Ojima, H. Nagata, and S. Shizukuishi
Malodor- and periodontal-disease-related parameters and self-estimation of malodor at baseline are effective for prediction of outcome.

J Dent Res 2003 82: 518-522. [Abstract] [Full Text] [PDF]  

Segregation Analysis of Mandibular Prognathism in Libya

A.A. El-Gheriani, B.S. Maher, A.S. El-Gheriani, J.J. Sciote, F.A. Abu-shahba, R. Al-Azemi, and M.L. Marazita
The authors present statistical genetic evidence for major locus involvement in mandibular prognathism, making gene-mapping studies feasible.

J Dent Res 2003 82: 523-527. [Abstract] [Full Text] [Figures Only] [PDF]  

Biomaterials & Bioengineering:

Biomechanics of the Human Temporomandibular Joint during Chewing

M. Naeije and N. Hofman
The authors describe a new method of measuring temporomandibular joint loading in humans during chewing and chopping.

J Dent Res 2003 82: 528-531. [Abstract] [Full Text] [Figures Only] [PDF]  

Occlusal and TMJ Loads in Subjects with Experimentally Shortened Dental Arches

Y. Hattori, C. Satoh, S. Seki, Y. Watanabe, Y. Ogino, and M. Watanabe
Neuromuscular regulatory systems control maximum clenching strength under various occlusal conditions.

J Dent Res 2003 82: 532-536. [Abstract] [Full Text] [Figures Only] [PDF]  

Aging Affects Two Modes of Nanoleakage Expression in Bonded Dentin

F.R. Tay, M. Hashimoto, D.H. Pashley, M.C. Peters, S.C.N. Lai, C.K.Y. Yiu, and C. Cheong
The authors tested the null hypothesis that water sorption has no effect on the manifestation of potential water-binding domains within resin-bonded dentin.

J Dent Res 2003 82: 537-541. [Abstract] [Full Text] [Figures Only] [PDF]  

Biological:

Expression and Localization of TREK-1 K⁺ Channels in Human Odontoblasts

H. Magloire, F. Lesage, M.L. Couble, M. Lazdunski, and F. Bleicher
The authors demonstrate the expression of the mechanosensitive potassium channel TREK-1 in human odontoblasts in vitro and in vivo.

J Dent Res 2003 82: 542-545. [Abstract] [Full Text] [Figures Only] [PDF]  

Cot/Tpl2 is Essential for RANKL Induction by Lipid A in Osteoblasts

T. Kikuchi, Y. Yoshikai, J. Miyoshi, M. Katsuki, T. Musikacharoen, A. Mitani, S. Tanaka, T. Noguchi, and T. Matsuguchi
Since LPS-mediated RANKL production by osteoblasts induces differentiation of osteoclasts, which is a major impairing factor of periodontitis, the authors' findings may provide an insight into a therapeutic approach to controlling this disease.

J Dent Res 2003 82: 546-550. [Abstract] [Full Text] [Figures Only] [PDF]  

Genetic Expression Profiling of Six Odontogenic Tumors

F. Carinci, F. Francioso, A. Piattelli, C. Rubini, M. Fioroni, R. Evangelisti, D. Arcelli, L. Tosi, F. Pezzetti, P. Carinci, and S. Volinia
The authors used, for the first time, expression profiling to identify a gene subset that can better classify borderline odontogenic tumors and may contain candidates for disease-specific cancer therapy targets.

J Dent Res 2003 82: 551-557. [Abstract] [Full Text] [Figures Only] [PDF]  

TGF-ß3 Decreases Type I Collagen and Scarring after Labioplasty

R. Hosokawa, K. Nonaka, M. Morifuji, L. Shum, and M. Ohishi
The authors demonstrate that TGF-ß3 is instrumental for the scarless repair of cleft lip in neonatal animals and functions by modulating matrix composition.

J Dent Res 2003 82: 558-564. [Abstract] [Full Text] [Figures Only] [PDF]  

An Involvement of Trigeminal Mesencephalic Neurons in Regulation of Occlusal Vertical Dimension in the Guinea Pig

W. Zhang, M. Kobayashi, M. Moritani, Y. Masuda, J. Dong, T. Yagi, T. Maeda, and T. Morimoto
Mesencephalic nucleus neurons are involved in the regulation of occlusal vertical dimension.

J Dent Res 2003 82: 565-569. [Abstract] [Full Text] [Figures Only] [PDF] [Appendix]  

Regional Alterations in Fiber Type Distribution, Capillary Density, and Blood Flow after Lower Jaw Sagittal Advancement in Pig Masticatory Muscles

T. Gedrange, B. Walter, I. Tetzlaff, M. Kasper, H. Schubert, W. Harzer, and R. Bauer
The authors suggest a complex muscle adaptation for long-term, fatigue-resistant activity during the early corrective period of mandibular-maxillary malocclusion treatment.

J Dent Res 2003 82: 570-574. [Abstract] [Full Text] [Figures Only] [PDF]  

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