Vestibular bone thickness of the mandible in relation to the mandibular canal-a retrospective CBCT-based study
| Autor: | Georg Damerau, Jan M Borm, Silvio Valdec, Bernd Stadlinger, Michael C. Locher, Stephanie Casparis |
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| Přispěvatelé: | University of Zurich |
| Rok vydání: | 2019 |
| Předmět: |
Dental implant
Radiography medicine.medical_treatment Mandibular canal lcsh:Medicine 610 Medicine & health Inferior alveolar nerve 030218 nuclear medicine & medical imaging Mental foramen 03 medical and health sciences 0302 clinical medicine stomatognathic system Bone transplantation medicine Premolar Orthodontics business.industry Research lcsh:R Mandible Mandibular foramen CBCT 030206 dentistry lcsh:RK1-715 stomatognathic diseases medicine.anatomical_structure lcsh:Dentistry 10069 Clinic of Cranio-Maxillofacial Surgery business |
| Zdroj: | International Journal of Implant Dentistry, Vol 5, Iss 1, Pp 1-7 (2019) International Journal of Implant Dentistry |
| DOI: | 10.5167/uzh-182054 |
| Popis: | Background The aim of this study was to assess vestibular bone thickness of the mandible in relation to the mandibular canal and position of the mental foramen in relation to the neighbouring teeth. Measurements were performed on radiographic cone-beam computed tomography (CBCT) images. Methods This retrospective study analysed 314 CBCTs, having been taken at the Clinic of Cranio-Maxillofacial and Oral Surgery, University of Zurich, Switzerland. Results CBCTs from 168 female and 146 male patients (median age 40.2 years) were analysed. Median bone thickness lateral to the nerve canal to the buccal mandibular cortical plate was ~ 4 mm immediately posterior to the mental foramen, increased to ≤ 6 mm over the next 30 mm, then decreased to ~ 3 mm at the level of the mandibular foramen. In two thirds of cases, both mental foramina were located near the second premolar (66.2% right, 67.7% left). Bone thickness and the position of the mental foramen showed marked intra- and interindividual variance. Conclusions A preoperative CBCT is recommended for detailed planning of surgical interventions that may reach the mandibular canal (e.g. wisdom teeth removal, root resection, implant placement, bone block harvesting). |
| Databáze: | OpenAIRE |
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