Publication: Characterization of physiologic occlusion.
7
Accepted Date
2014-07-22
Issued Date
2014-09
Resource Type
Language
eng
ISSN
0125-5614 (printed)
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Mahidol University
Rights Holder(s)
Faculty of Dentistry Mahidol University
Bibliographic Citation
Asawaworarit N, Mitrirattanakul S. Characterization of physiologic occlusion. M Dent J. 2014; 34(3): 263-9.
Suggested Citation
Nattaya Asawaworarit, ณัฏยา อัศววรฤทธิ์, Somsak Mitrirattanakul, สมศักดิ์ ไมตรีรัตนะกุล Characterization of physiologic occlusion.. Asawaworarit N, Mitrirattanakul S. Characterization of physiologic occlusion. M Dent J. 2014; 34(3): 263-9.. Retrieved from: https://repository.li.mahidol.ac.th/handle/123456789/1124
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Title
Characterization of physiologic occlusion.
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Abstract
Objectives: To characterize and describe the occlusal relationship in Thai
subjects with physiologic occlusion.
Materials and methods: One hundred and twenty-four subjects (49 males
and 75 females) fulfilled the criteria of physiologic occlusion by Mohl (1988)
were examined for the static and dynamic occlusal relationship. Total number
of tooth, horizontal and vertical overlap, Angle’s classification were examined
for static occlusion. For dynamic occlusion, maximum mouth opening
including lateral and protrusive excursions were examined. In addition, the
subjects’ occlusal schemes were classified according to the definition from
Glossary of Prosthodontic Terms (8th edition) as well as the presence of
occlusal interferences during mandibular excursions. Discrepancy between
retruded contact positon (RCP) and intercuspal position (ICP) was also
performed.
Results: The majority of the populations with physiologic occlusion had total
number of existing teeth of 28 and Angle’s classification class I. The mean
vertical overlap and horizontal overlap were 1.88±1.25 and 2.33±1.31 mm
respectively. The average maximum mouth opening, left and right excursive /
protrusive movement was 46.52±4.57, 8.77±1.3, 8.55±1.23, and 6.28±1.55 mm
respectively. The most common occlusal scheme was group function.
Occlusal interference was presented in 20.2% of the population. The most
common occlusal interference was protrusive interference (12.1%). About
80% possessed no RCP-MIP discrepancy with the average of 0.15±.0.3 mm.
Conclusions: The common occlusal characteristics of physiologic occlusion
among Thais are group function occlusal scheme, Angle’s classification I,
absence of occlusal interference, approximate 45 mm of maximum mouth
opening and absence of RCP-ICP discrepancy.