Bolton comparison between Caucasian and Chinese populations

Simple item page
dc.contributor.authorRoos, Yohanine
dc.contributor.examiningcommitteeDrummond, Robert (Preventive Dental Science, Orthodontics) Todescan, Reynaldo (Restorative Dentistry)en_US
dc.contributor.supervisorWiltshire, William (Preventive Dental Science)en_US
dc.date.accessioned2018-09-14T18:45:39Z
dc.date.available2018-09-14T18:45:39Z
dc.date.issued2018en_US
dc.date.submitted2018-05-04T21:21:07Zen
dc.degree.disciplinePreventive Dental Scienceen_US
dc.degree.levelMaster of Science (M.Sc.)en_US
dc.description.abstractOBJECTIVE: 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.description.noteOctober 2018en_US
dc.identifier.urihttp://hdl.handle.net/1993/33387
dc.language.isoengen_US
dc.rightsopen accessen_US
dc.subjectTooth Size Discrepancy, Overall ratio, Anterior ratioen_US
dc.titleBolton comparison between Caucasian and Chinese populationsen_US
dc.typemaster thesisen_US
local.subject.manitobayesen_US
Files
Original bundle
Now showing 1 - 2 of 2
Thumbnail Image
Name:
roos_yohanine.pdf
Size:
2.53 MB
Format:
Adobe Portable Document Format
Description:
Main file
Download
Thumbnail Image
Name:
Final report.pdf
Size:
59.22 KB
Format:
Adobe Portable Document Format
Description:
Final FGS report
Download
License bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
license.txt
Size:
2.2 KB
Format:
Item-specific license agreed to upon submission
Description:
Download
Collections
FGS - Electronic Theses and Practica
Manitoba Heritage Theses