The Anatomical Evaluation of the Dental Arches Using Cone Beam Computed Tomography - A Pilot Investigation of the Availability of Bone for Placement of Mini-implants in Class I Patients

摘要

Objective: To access the amount of maxillary and mandibular interradicular bone and determine the most reliable implant sites. Methods: 24 (12 female, 12 male, aged 16 to 32) Cone beam computed tomography records were obtained, mesiodistal direction measurements were made at 0, 1, 2, 3, 4, 5 mm heights front cementoenamel junction (CEJ) through axial slices. Results: In both maxillary and mandibular arch, the inter-radicular space increased in the apical direction except between the upper first and second molar. The bone space exceeds 3.2mm located at regions between central incisors, lateral incisor and canine, canine and first premolar, first and second premolars, second premolar and first molar (maxilla); first and second premolars, first and second molars, second premolar and first molar (mandible). Conclusion: The regions that were not ideal for mini-implants insertion included areas between central and lateral incisors or molars (maxilla); regions between incisors and canines (mandible). The residual regions between teeth are proper for implantation at heights of 2, 3 or 5 mm above CEJ.