Buccolingual Inclination of Canine and First and Second Molar Teeth and the Curve of Wilson in Different Sagittal Skeletal Patterns of Adults Using Cone-Beam Computed Tomography.

Amin Golshah,Sara Heshmati,Navid Rezaei,Sreekanth Kumar Mallineni

doi:10.1155/2020/8893778

Amin Golshah, Sara Heshmati + Show 2 more

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https://doi.org/10.1155/2020/8893778

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Abstract

Objectives This study aimed to assess the buccolingual inclination of canine and first and second molar teeth and the curve of Wilson in different sagittal skeletal patterns in untreated adults using cone-beam computed tomography (CBCT). Materials and Methods Sixty-six CBCT scans of adults (mean age: 28.74 ± 5.25 years) were evaluated in this cross-sectional study. The images were standardized using the Frankfurt horizontal plane and the interorbital line. The sagittal skeletal pattern was determined using the ANB angle and Wits appraisal. Inclination angles were measured by NNT Viewer and Mimics software. The curve of Wilson was measured by connecting the tips of mesiobuccal and mesiolingual cusps of maxillary first and second molars along the buccal groove and measuring the formed angle. Data were analyzed using ANOVA. Results The intraobserver agreement was 0.969. The mean inclination of maxillary first and second molars in class I and III patients was significantly higher than that in class II patients (P < 0.05). The mean inclination of mandibular first and second molars in class II patients was significantly higher than that in class I and III patients (P < 0.05). The difference in inclination of maxillary and mandibular canine teeth was not significant (P > 0.05). The mean curve of Wilson in second molars of class II patients was significantly higher than that in class I patients (P < 0.05). Conclusion In different sagittal skeletal patterns, a compensatory relationship exists between the opposing teeth, which, along with the standards of crowns, can be used to determine the appropriate position of teeth in dental arch.

Highlights

Orthodontics is the art and science of leveling and alignment of the teeth in dental arch, which is associated with bone remodeling and converts a malocclusion into a stable occlusion with maximum achievable order and alignment of teeth and optimal function and esthetics
In order to measure the curve of Wilson, the mesiobuccal and mesiolingual cusp tips of the maxillary first and second molars were connected along the buccal groove and the formed angle was measured (Figure 6)
Discussion is study assessed the buccolingual inclination of canine and first and second molar teeth and the curve of Wilson in untreated adults with different sagittal skeletal patterns using cone-beam computed tomography (CBCT)

Summary

Research Article

Objectives. is study aimed to assess the buccolingual inclination of canine and first and second molar teeth and the curve of Wilson in different sagittal skeletal patterns in untreated adults using cone-beam computed tomography (CBCT). Is study aimed to assess the buccolingual inclination of canine and first and second molar teeth and the curve of Wilson in different sagittal skeletal patterns in untreated adults using cone-beam computed tomography (CBCT). E mean inclination of maxillary first and second molars in class I and III patients was significantly higher than that in class II patients (P < 0.05). E mean inclination of mandibular first and second molars in class II patients was significantly higher than that in class I and III patients (P < 0.05). E mean curve of Wilson in second molars of class II patients was significantly higher than that in class I patients (P < 0.05). In different sagittal skeletal patterns, a compensatory relationship exists between the opposing teeth, which, along with the standards of crowns, can be used to determine the appropriate position of teeth in dental arch

Introduction

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