Resumo

RIKHOTSO, RE  e  MUNSAMY, C. A morphological study of the lingula in South Africans in relation to sagittal split osteotomy. S. Afr. dent. j. [online]. 2017, vol.72, n.9, pp.408-412. ISSN 0375-1562.  http://dx.doi.org/10.17159/2519-0105/2017/v72no9a2.

PURPOSE: To establish the position and shape of the lingula of the mandible in relation to the surrounding anatomical landmarks, data requisite for inferior alveolar nerve blocks and mandibular osteotomies.METHODS: Measurements were carried out on 201 sides from 113 adult dry mandibles.RESULTS: The most common shape of the lingula was truncated, found in 38.8% of cases, followed by the triangular (30.8 %), nodular (21.4%) and assimilated (8.9%) types. The average distances of the tip of the lingula from the anterior border, posterior border and sigmoid notch of the ramus of the mandible were 20.15mm, 16.77mm and 16.3mm respectively, and, from the mandibular second molar tooth, 33.3mm. The lingula was above the level of the occlusal plane in 63.7% of cases, by an average of 6.5mm.CONCLUSION: The position of the lingula has been shown to be related to adjacent anatomical landmarks which may provide useful clinical references. in Lingula is above the level of the occlusal plane by an average distance of 6.5 mm. Truncated type is the most common shape of the lingula A higher position of the lingula may be anticipated in both Class II and III malocclusions.

Palavras-chave : lingula; mandibular foramen; sagittal split osteotomy.

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