The aim of the present study was to investigate if a relationship exists between certain skeletal and dental characteristics and the amount of incisal wear of mandibular incisors. In this retrospective, cross-sectional study, an index specifically designed to measure incisal wear on dental study casts was used to examine mandibular incisal wear in 215 subjects using pre-treatment records from the University of Minnesota orthodontic clinic. Multiple linear regression analysis (R2 = 0.3886) resulted in a regression model with five independent variables. Age, gender, incisor irregularity, UI-SN and Sn-GoGn were all shown to be significantly associated with increased mandibular incisal wear. Based on these findings, a prudent clinician may be able to use dental and skeletal relationships to better predict patients who are at a risk for increased tooth wear.
University of Minnesota M.S. thesis. September 2011. Major: Dentistry. Advisor: James Miller D.D.S., M.S. 1 computer file (PDF); vi, 49 pages, appendix I.
Tolmie, Gregory A..
The relationship between occlusal and skeletal characteristics and lower incisor wear..
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