Evaluation of the Buccal Cortical Bone Thickness in Class II Malocclusion for Mini-Implant Insertion: a CBCT Study

Background: This study aimed to evaluate the buccal cortical bone thickness of the Iraqi population for mini-implant insertion using cone-beam computed tomography (CBCT). Methods: This cross-sectional study was conducted on maxillary and mandibular CBCT scans of 40 patients (14-25 years). One examiner measured skeletal parameters at 4, 6 and 8 mm apical to the cementoenamel junction (CEJ). Results: the largest buccal cortical bone thickness in the maxilla was between the first and second molar (1.36mm for males, 1.24mm for females) and in the mandible was between the first and second molar (2.17mm for males, 2.37 for female). Conclusions: The buccal cortical bone thickness varies in different individuals. In the mandible, the buccal cortical bone thickness was increased as we move from the anterior to the posterior area. The buccal Cortical bone thickness is thicker in the mandible compared to the maxilla.