Tooth Contact Sounds-Can It Evaluate Occlusion?
Journal Title: Journal of Medical and Dental Science Research (Quest Journals JMDSR) - Year 2017, Vol 4, Issue 2
Abstract
Purpose: To study the relevance of tooth contact sounds in a wave form in evaluating the quality of occlusion and to check if these sounds can be used to identify occlusal events. Methods: 42 subjects having 28 or 32 permanent teeth with Angle’s class I molar relashionship were selected . None of the teeth had any restorations . Subjects were asked to make tooth contacts in maximum intercuspation position and eccentric movements in right lateral, left lateral and protrusive positions . Tooth contact sounds were converted into wave forms by a polygraph machine .The components of the wave pattern were studied as ‘impacts’ and ‘slides’. One way ANOVA test was done to evaluate the statistical significance. Results : The wave patterns analyzed were classified into four types. Number of waves and duration of waves in the four different occlusal positions were calculated. Mean value of slides in maximum intercuspation position differed in four types and was found to be statistically significant (p<0.5).The statistically significant difference in the mean number of slides in the maximum intercuspation position in different types signified that tooth contact sounds could be used to study different qualities of occlusion. Conclusion: The study of wave pattern of ‘impacts‘and ‘slides’ in occlusal contact could help in correcting the occlusion to a stable position and this could be used as a ready reckoner to assess the quality of occlusion and also as a guide for future reference
Authors and Affiliations
Sajani Ramachandran, Ranukumari Ranukumari
Keywords
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