--- abstract: 'Aims: The mandibular incisive nerve can be subjected to iatrogenic injury during bone graft harvesting. Using cone beam computed tomography (CBCT), this study aims to determine a safe zone for bone graft harvesting that avoids injuring this nerve. Methods: Sixty CBCT examinations of patients were included in this study. The examinations were taken using the i-CAT CBCT imaging system, applying a standardized exposure protocol. Image reconstruction from the raw data was performed using the SimPlant dental implant software. The distances of mandibular incisive canal (MIC) to the inferior border and the labial and lingual cortices of the mandible were measured at 3, 5, 7 and 9 mm mesial to the mental foramen. Results: The MIC was visible in all (100) CBCT images. The median distance and interquartile range from the lower border of the mandible was 9.86 (2.51) mm, curving downwards toward the inferior mandibular border at the symphysis menti. It was located closer to the buccal border of the mandible (3.15 1.28 mm) than lingual cortex (4.78 2.0 mm). The MIC curves toward the lingual side at the symphysis menti. There was gender difference in a number of these measurements. Current recommendation for chin bone graft harvesting can be applied to Asian subjects. Conclusions: While acknowledging that there is human variability, this study provides an accurate anatomic location of the MIC, which in turn helps to determine a safe zone for chin bone graft harvesting. This information can become a useful guide in centers where CBCT is not available. {\^A}{\copyright} 2012 John Wiley \& Sons A/S.' altloc: [] chapter: ~ commentary: ~ commref: ~ confdates: ~ conference: ~ confloc: ~ contact_email: ~ creators_id: - ~ - ~ - ~ - ngeowy@um.edu.my creators_name: - family: Al-Ani given: O. honourific: '' lineage: '' - family: Nambiar given: P. honourific: '' lineage: '' - family: Ha given: K.O. honourific: '' lineage: '' - family: Ngeow given: W.C. honourific: Dr. lineage: '' date: 2011-11-19 date_type: published datestamp: 2012-04-25 13:03:39 department: ~ dir: disk0/00/00/81/67 edit_lock_since: ~ edit_lock_until: 0 edit_lock_user: ~ editors_id: [] editors_name: [] eprint_status: archive eprintid: 8167 fileinfo: application/pdf;http://cogprints.org/8167/1/Safe%20Zone%20for%20Bone%20Harvesting%20From%20The%20Interforaminal%20Region%20of%20The%20Mandible.pdf full_text_status: public importid: ~ institution: ~ isbn: ~ ispublished: pub issn: ~ item_issues_comment: [] item_issues_count: ~ item_issues_description: [] item_issues_id: [] item_issues_reported_by: [] item_issues_resolved_by: [] item_issues_status: [] item_issues_timestamp: [] item_issues_type: [] keywords: Clinical assessment Diagnosis Imaging Morphometric analysis Radiology lastmod: 2012-04-25 13:03:39 latitude: ~ longitude: ~ metadata_visibility: show note: 'Export Date: 7 March 2012 Source: Scopus Article in Press Language of Original Document: English Correspondence Address: Ngeow, W.C.; Department of Oral and Maxillofacial Surgery Faculty of Dentistry University of MalayaKuala Lumpur Memail: ngeowy@um.edu.my' number: ~ pagerange: ~ pubdom: TRUE publication: Clinical Oral Implants Research publisher: ~ refereed: TRUE referencetext: ~ relation_type: [] relation_uri: [] reportno: ~ rev_number: 8 series: ~ source: ~ status_changed: 2012-04-25 13:03:39 subjects: - JOURNALS - OJHAS succeeds: ~ suggestions: "Associate Prof. Dr. Ngeow Wei Cheong @ David Ngeow\r\nDepartment of Oral and Maxillofacial Surgery, Faculty of Dentistry, University of\r\nMalaya, 50603 Kuala Lumpur, MALAYSIA\r\n\r\nAssociate Professor Dr. Ngeow Wei Cheong is currently a lecturer at the Department of Oral and Maxillofacial Surgery, Faculty of Dentistry of the University of Malaya. He graduated from the University of Malaya in 1992 and was a private practitioner for 9 months before he was offered the post of tutorship at his alma matter. Three years later, he went to do a house job at the Queen Victoria Hospital in East Grinstead, England. He obtained his Fellowship in Dental Surgery from the Royal College of Surgeons in Ireland and the Royal College of Surgeons ofEngland in 1996. He subsequently returned to Malaysia and was a pioneer lecturer at the then newly established Universiti Kebangsaan Malaysia. He left for private practice in 1999 but the temptation to return to academic life was greater, hence he returned to the University of Malaya the subsequent year. His research interest are craniofacial anthropometry, variations of the mandibular nerve, and recovery of peripheral nerves after microsurgical repair. \r\n \r\n\r\nAREAS OF EXPERTISE\r\n\t\r\nDentofacial Anthropometry (Head & Neck, anthropology)\r\n\r\nDental Analgesics (analgesic, local anaesthetic, COX-2 inhibitors)\r\n\r\nSurgical Anatomy (mental foramen, anterior loop)" sword_depositor: ~ sword_slug: ~ thesistype: ~ title: Safe zone for bone harvesting from the interforaminal region of the mandible type: journalp userid: 16514 volume: ~