Comparison of Anterior Maxillary Root Surface Areas in Patients with Normal Overjet and Large Overjet using Cone Beam Computed Tomography
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Abstract
Background: Root surface area is related to orthodontic force magnitude used to induce alveolar bone remodeling with minimize periodontal damage. These detriments are highly concerned especially in anterior teeth that often needed to be retracted. Objective: To compare root surface area of maxillary anterior teeth between patients with normal overjet and large overjet. Materials and methods: Twelve cone beam computed tomography (CBCT) images of each group were used. Three-dimensional construction of each tooth was created using Mimics software. The surface area apical to cemento-enamel junction was measured and calculated as root surface area using 3-Matic software. The data was analyzed with descriptive analysis. Results: Mean age of the patients was 19.75 ± 2.25 years. Mean root surface area of maxillary anterior teeth ranged from 181.32 to 282.16 mm.2 The mean root surface area of maxillary central incisor, lateral incisor, and canine in normal overjet patients were 199, 181 and 249 mm2 respectively. While the mean root surfaces in large overjet patients were 210, 197, 282 mm2 respectively. Conclusion: The root surface areas of maxillary lateral incisor and canine in large overjet patients were significantly greater than in normal overjet patients. However, there was no significant difference in maxillary central incisor. These findings presented that the difference overjet pattern might associated with the root surface area of maxillary lateral and canine.
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