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Abstract

The orthodontic “finishing” phase is recognized for the many details to accomplish an
excellent result. A high percentage of finishing-phase difficulties arise because of tooth
size imbalance that could have been considered during the initial diagnosis and treatment
planning. The aim of this study was to determine whether the Bolton's analysis applies
for the crowded and non crowded dentitions. This study involved 60 subjects (30
crowded and 30 non-crowded; 29 males and 31 females). Criteria for sample selection
comprised absence of interproximal caries/filling, no residual crown-bridge restoration,
no tooth deformity, aged over 17 years, never undergone orthodontic treatment, and the
presence of teeth from right first molar through left first molar, both upper and lower.
Tooth size measurements were performed on study models. The statistical analysis used
were descriptive and t-test. The results of the study were as follows: the mesiodistal tooth
widths on males were bigger that those on females, the mesiodistal tooth widths on
crowded group were bigger than those on normal group but the difference was
insignificant statistically (p>0.05); anterior ratio in crowded group was smaller that that
in normal group; overall ratio in crowded group was bigger than that in normal group but
the difference was insignificant (p>0.05). Anterior ratio of the two groups was bigger
than Anterior Bolton Mean, it means that the discrepancy was present on the lower arch.
Overall ratio of the two groups was smaller than Overall Bolton Mean, it means that the
discrepancy was present on the upper arch.

Pages

36-41

Rights

©2016Susilowati Susilowati, Meryl Dekaria

DOI

10.15562/jdmfs.v6i1.135

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