Modified Medial Ramus Retractor to Facilitate Horizontal Osteotomy During Sagittal Split Ramus Osteotomy Procedure

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Abstract

Introducing a horizontal osteotomy is the first and a critical step in sagittal split ramus osteotomy procedure. Identification of the lingula and medial displacement of the vital structures entering the inferior alveolar foramen are of paramount importance in ensuring a risk-free placement of the medial cut with bur or a saw. Quite often, identification of lingula and retrolingular fossa can be an arduous task owing to the thickness of the internal oblique ridge. Hence, placement of horizontal osteotomy depends on the experience of the operator.

Here, the authors describe a simple, low profile instrument that aids in the identification of the lingula as well as provide a posterior stop for horizontal osteotomy during the sagittal split ramus osteotomy procedure.

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