Abstract
Background
The human face is a three-dimensional structure. However, many studies on mandible reduction procedures are based on a two-dimensional concept, with a particular focus on one dimension: the width of the lower face. Many Korean individuals have class I occlusion with a skeletal class III pattern. When a conventional mandible reduction procedure is used on such individuals to reduce the width of the lower face, an unsatisfactory facial outcome may result because the changes in the other two dimensions of the lower face, vertical height and anteroposterior distance, are disregarded. This is true because the skeleton of the lower face is well developed in all three dimensions.
Methods
Bimaxillary surgery that reduces all three dimensions of the lower face was planned and conducted by the authors. This mandible reduction procedure reduced the protrusion of both the maxilla and the mandible and, at the same time, shortened the lower face height. The procedure consisted of a Le Fort I osteotomy for superior and/or posterior repositioning of the maxilla, followed by mandibular counterclockwise rotation and setback via a bilateral sagittal split osteotomy. Genioplasty was performed as necessary.
Results
With this procedure, the entire lower face volume is reduced, and the overall profile is improved.
Conclusions
Three-dimensional mandible reduction greatly enhances the aesthetic outcome by improving the skeletal characteristics of the face common in the Korean population so that the facial measurements more closely approach normal values.
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References
Baek SM, Baek RM, Shin MS: Refinement in aesthetic contouring of the prominent mandibular angle. Aesth Plast Surg 18:283, 1994
Baek SM, Kim SS, Bindiger A: The prominent mandibular angle: Preoperative management, operative technique, and results in 42 patients. Plast Reconstr Surg 83:272, 1989
Deguchi M, Iio Y, Kobayashi K, Shirakabe T: Angle-splitting ostectomy for reducing the width of the lower face. Plast Reconstr Surg 99:1831, 1997
Han KH, Kim JH: Reduction mandibuloplasty: Ostectomy of the lateral cortex around the mandibular angle. J Craniofac Surg 12:314, 2001
Jin H: Misconceptions about mandible reduction procedures. Aesth Plast Surg 29:317, 2005
Jin H, Kim BG: Mandibular angle reduction versus mandible reduction. Plast Reconstr Surg 114:1263, 2004
Jin H, Park SH, Kim BH: Sagittal split ramus osteotomy with mandible reduction. Plast Reconstr Surg (in press)
Yang DB, Park CG: Mandibular contouring surgery for purely aesthetic reasons. Aesth Plast Surg 15:53, 1991
Yang DB, Song HS, Park CG: Unfavorable results and their resolution in mandibular contouring surgery. Aesth Plast. Surg 19:93, 1995
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Jin, H., Kim, B.H. & Woo, Y.J. Three-Dimensional Mandible Reduction: Correction of Occlusal Class I in Skeletal Class III Cases. Aesth Plast Surg 30, 553–559 (2006). https://doi.org/10.1007/s00266-006-0001-3
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DOI: https://doi.org/10.1007/s00266-006-0001-3