Morphology of the inferior border of the mandible: correct relation between the lowest position of the outer and inner contours of the cortex for a successful split. Issue 5 (June 2017)

• Record Type: Journal Article
• Authors: Matsushita, K.; Donen, M.; Harata, S.; Nagamine, K.; Tei, K.
• Is Part Of: British journal of oral and maxillofacial surgery. Volume 55:Issue 5(2017)
• Page Start: 540
• Page End: 541
• Publication Date: 2017-06
• Subjects: ramus osteotomy -- inferior border; Mouth -- Surgery -- Periodicals; Maxilla -- Surgery -- Periodicals; Face -- Surgery -- Periodicals; Surgery, Plastic -- Periodicals; Dentistry, Operative -- Periodicals; Face -- surgery -- Periodicals; Mouth -- surgery -- Periodicals; Maxilla -- surgery -- Periodicals; Surgery, Oral -- Periodicals; Oral Surgical Procedures -- Periodicals; Dentistry, Operative -- Periodicals; Bouche -- Chirurgie -- Périodiques; Maxillaire supérieur -- Chirurgie -- Périodiques; Face -- Chirurgie -- Périodiques; Chirurgie dentaire -- Périodiques; Dentistry, Operative; Face -- Surgery; Maxilla -- Surgery; Mouth -- Surgery; Surgery, Plastic; Electronic journals; Periodicals; 617.52059
• DOI: 10.1016/j.bjoms.2017.03.012
• Languages: English
• ISSNs: 0266-4356

Abstract

Abstract: For a sagittal split ramus osteotomy to be secure, the relation between the outer and inner contours of the cortex at the inferior border of the mandible is critical. The lowest point of the outer contour is not always immediately below that of the inner contour, and the former is placed more lingually than the latter in about a third of all cases. This tendency is much more noticeable in skeletal class I and II malocclusions than class III. It is therefore important to examine the lowest point of the inferior border in every case, and to carry the inferior part of the buccal cut on to the lingual side if necessary.