1. Assessment of the mandibular buccal shelf for orthodontic anchorage: Influence of side, gender and skeletal patterns
- Author
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Candice Belchior Duplat, Iêda Crusoé-Rebello, Roberta Basañez Aleluia, and Frederico Sampaio Neves
- Subjects
Male ,Bone thickness ,medicine.medical_treatment ,Orthognathic surgery ,Orthodontics ,Mandible ,Mandibular second molar ,03 medical and health sciences ,Basal (phylogenetics) ,0302 clinical medicine ,stomatognathic system ,Orthodontic Anchorage Procedures ,medicine ,Humans ,030212 general & internal medicine ,business.industry ,030206 dentistry ,Buccal administration ,Cone-Beam Computed Tomography ,Molar ,Sagittal plane ,stomatognathic diseases ,medicine.anatomical_structure ,Anatomical sites ,Otorhinolaryngology ,Female ,Surgery ,Oral Surgery ,business - Abstract
OBJECTIVES To evaluate bone height and thickness in the mandibular buccal shelf region and to compare differences between anatomical sites according to gender, side and vertical and sagittal skeletal patterns. SETTINGS AND SAMPLE POPULATION Multislice computed tomography (MSCT) images of 94 subjects (51 females and 43 males) were previously obtained as part of preoperative planning for orthognathic surgery. METHODS Measurements were performed in three different regions of the mandibular buccal shelf: mesially, towards the central groove and distally to the second molars. Bone thickness measurements were obtained perpendicularly 3, 5 and 7 mm below the bone crest towards the mandible outer cortex. Bone height was measured 3 mm away from the bone crest perpendicularly to the outer cortex of the base of mandible. RESULTS There was an increase in bone thickness in the posterior and basal directions. The increase in bone thickness ranged from 1.8 to 7.1 mm. Greater bone height was found in the anterior direction. The increase in bone height ranged from 17.5 to 22.5 mm. Hypodivergent and Class III subjects showed significantly greater bone thickness (P
- Published
- 2021
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