Show simple item record

dc.contributor.supervisor Wiltshire, William (Preventive Dental Science) en_US
dc.contributor.author Roos, Yohanine
dc.date.accessioned 2018-09-14T18:45:39Z
dc.date.available 2018-09-14T18:45:39Z
dc.date.issued 2018 en_US
dc.date.submitted 2018-05-04T21:21:07Z en
dc.identifier.uri http://hdl.handle.net/1993/33387
dc.description.abstract OBJECTIVE: The aim of this study was to use Bolton calculations to compare and detect tooth size discrepancies which may exist between Caucasian and Chinese subjects. MATERIALS & METHODS: Fifty Caucasians and fifty Chinese subjects' study casts (25 male and 25 female) were selected who had a complete permanent dentition up to the first molars, without interproximal restorations or caries, and had no previous orthodontic treatment. Casts were measured with a Digital Caliper (accurate to 0.001"). The measurements were used to do the Bolton calculations for the over-all ratio (Overall 12) and for the anterior ratio (Anterior 6). Linear regression models with main effects for race and gender as well as an interaction effect between the groups, were used. RESULTS: No significant gender difference (p > 0.05) was found for the Overall 12 and the Anterior 6. A highly significant difference (p = 0.007) was found amongst the two ethnic groups for the Overall 12, but not for the Anterior 6 (p >0.05). For the Anterior 6 there was a significant difference (p = 0.04) in the group variances, with the Caucasian group showing more variance. CONCLUSIONS: Based on the findings in this study, for improved accuracy, it is advisable to generate Chinese-specific Bolton tables. en_US
dc.subject Tooth Size Discrepancy, Overall ratio, Anterior ratio en_US
dc.title Bolton comparison between Caucasian and Chinese populations en_US
dc.degree.discipline Preventive Dental Science en_US
dc.contributor.examiningcommittee Drummond, Robert (Preventive Dental Science, Orthodontics) Todescan, Reynaldo (Restorative Dentistry) en_US
dc.degree.level Master of Science (M.Sc.) en_US
dc.description.note October 2018 en_US


Files in this item

This item appears in the following Collection(s)

Show simple item record

View Statistics