Journal of Nepalese Prosthodontic Society



Introduction: Canine protection and group function are the two stand out occlusal schemes observedduring laterotrusive movement of the mandible. The study aims to evaluate the frequency of theseocclusal schemes in Nepalese dental students.

Materials and methods: A cross-sectional study was conducted among dental students in People’sDental College and Hospital, Kathmandu, Nepal after the ethical approval from PDCH-IRC. Sixty fourundergraduate students aged 21-30 years, were examined for the occlusal contact patterns in lateralmandibular movements using 12μm shim stock. The data were analyzed using SPSS software (version21)

Result: On 1mm laterotrusive position on mandible, 43 subjects (67%) showed group function, 15subjects (24%) canine guided and 6 subjects (9%) non specified occlusion. On 3mm laterotrusivemovement, 31(48%) subjects showed group function and 27 subjects (42%) showed canine guidedocclusal scheme. The most frequent mediotrusive contact was the second molar followed by the firstmolars during both 1mm and in 3mm excursion

Conclusion: Majority of occlusal schemes of the study population were group function followed bycanine protection and non specified occlusion. Canine protected occlusion scheme was increased on3mm lateral excursion. Most of mediotrusive side contact seen on 2nd molar on 1mm.

Key words: Canine guided, Group function, Laterotrusive, Mediotrusive contact, Occlusal contactpattern, Shimstock

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