Cortical bone thickness of the alveolar process measured with cone-beam computed tomography in patients with different facial types

Ozdemir F. , Tozlu M., Germec-Cakan D.

AMERICAN JOURNAL OF ORTHODONTICS AND DENTOFACIAL ORTHOPEDICS, cilt.143, sa.2, ss.190-196, 2013 (SCI İndekslerine Giren Dergi) identifier identifier identifier

  • Cilt numarası: 143 Konu: 2
  • Basım Tarihi: 2013
  • Doi Numarası: 10.1016/j.ajodo.2012.09.013
  • Sayfa Sayıları: ss.190-196


Introduction: The purpose of this study was to determine the cortical bone thickness of the alveolar process in the maxilla and the mandible on cone-beam computed tomographs of adults with low, normal, and increased facial heights. Methods: This study was conducted on 155 images of adult patients (20-45 years old) who were assigned to the low-angle, normal, and high-angle groups. The thickness of the buccal cortical plates of the maxilla and the mandible, and the palatal cortical plates of the maxilla, were measured. Results: There was no statistically significant difference between the groups regarding mean ages, sex, and sagittal facial types. High-angle patients had significantly lower values than did low-angle patients in all mini-implant insertion sites in both the maxillary and mandibular alveolar bones. The mandibular and maxillary buccal measurements showed a similar pattern; the lowest values were for the high-angle group, followed by the normal group; the highest values were measured in the low-angle patients. Conclusions: Clinicians should be aware of the probability of thin cortical bone plates and the risk of mini-implant failures at maxillary buccal alveolar mini-implant sites in high-angle patients, and at mandibular buccal alveolar mini-implant sites between the canine and the first premolar in normal and high-angle patients. (Am J Orthod Dentofacial Orthop 2013;143:190-6)