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Cortical bone thickness of the alveolar process measured with cone-beam computed tomography in patients with different facial types.
Ozdemir, Fulya; Tozlu, Murat; Germec-Cakan, Derya.
Affiliation
  • Ozdemir F; Department of Orthodontics, Faculty of Dentistry, Yeditepe University, Istanbul, Turkey.
Am J Orthod Dentofacial Orthop ; 143(2): 190-6, 2013 Feb.
Article in En | MEDLINE | ID: mdl-23374925
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.
Subject(s)

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Orthodontic Anchorage Procedures / Face / Alveolar Process / Mandible / Maxilla Type of study: Observational_studies / Risk_factors_studies Limits: Adult / Female / Humans / Male / Middle aged Language: En Journal: Am J Orthod Dentofacial Orthop Year: 2013 Document type: Article

Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Orthodontic Anchorage Procedures / Face / Alveolar Process / Mandible / Maxilla Type of study: Observational_studies / Risk_factors_studies Limits: Adult / Female / Humans / Male / Middle aged Language: En Journal: Am J Orthod Dentofacial Orthop Year: 2013 Document type: Article