Root Surface Areas of Maxillary Permanent Teeth in a Group of Thai Patients Exhibiting Anterior Open Bite Using Cone-Beam Computed Tomography
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Abstract
Objective: To assess the root surface areas of maxillary permanent teeth in a group of Thai patients exhibiting anterior open bite with open vertical configuration using cone-beam computed tomography (CBCT)
Materials and Methods: CBCT images of maxillary permanent teeth, categorized by tooth type (maxillary third molars were excluded) from 18 patients (age ranged from 15.0 to 30.0 years) were selected. Three-dimensional tooth models were constructed using Mimics Research 17.0 software. The cemento-enamel junction (CEJ) was marked. The root surface area was calculated automatically by 3-Matic Research 9.0 software. The means of root surface areas among tooth types were compared using the one-way analysis of variance (ANOVA) with multiple comparisons (p < 0.05).
Results: Means and standard deviations of root surface areas of maxillary permanent teeth were arranged in descending order as maxillary first molar (452.40±65.75 mm), maxillary second molar (379.85±79.71 mm), maxillary second premolar (245.52±44.03 mm), maxillary canine (244.80±54.11 mm2), maxillary first premolar (232.22±39.95 mm2), maxillary central incisor (182.70±27.80 mm2) and maxillary lateral incisor (163.29±24.42 mm2), respectively. Statistically significant differences among tooth types were found.
Conclusions: The root surface area measurement of maxillary permanent teeth, using CBCT measuring method, showed that the maxillary first molar had the greatest root surface area and the maxillary lateral incisor had the least.
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References
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