Sagittal Resection of the Mandible: Are We Doing Right?
Sagittal resection of mandible has an important role in reducing the lower facial width.
Conventional method of sagittal resection focused on removing the lateral mandibular cortex in the posterior ramus and mandible angle region, which has the problems and leads to the misunderstanding.
The widest part of the mandible is the gonial area in straight or outcurved mandible type, but maximal ramus point in incurved mandible type. After contouring ostectomy, this maximal ramus point is 1–2 cm anterior to the posterior border of the mandible.
The thickest portion of the mandible is the junctional area between the ramus and body along the oblique line.
Instead of splitting angular part of the mandible, geographic sagittal resection of the mandibular body should include the maximal body point (MBP) and maximal ramus point (MRP) to maximize the effect.