Long-term stability of surgical counterclockwise rotation of the maxillomandibular complex.
Published: 2006
Language: eng
Number of pages: 84
ISBN-13: 9780494210888
Description: Thirty consecutive patients undergoing surgical counterclockwise rotations were examined. Pre- and post-surgical changes compared with results at mean 1.5year follow-up. Sample comprised of 21 female and 9 male subjects (mean age 20.9years).The mean amount of mandibular advancement for the entire sample was 12.5mm (7.3-17.9) at B-Point. Pogonion underwent 15.2mm (8.7-19.9) and 20.2mm (13.0-26.1) for non-genioplasty and genioplasty groups, respectively.Surgical counterclockwise rotations of the maxillomandibular complex offer long-term stable results and should be considered a viable treatment option in appropriate cases.80% of patients showed relapse of &le;2mm as it pertains to maxillary landmarks. Incorporation of a genioplasty reduced the amount of horizontal mandibular relapse at B-Point. Females had greater horizontal and vertical mandibular relapse vs. males. Horizontal mandibular incisor advancements greater than 11.65mm seen in 78% of those who relapsed at B-Point. 62% of those showing relapse of occlusal plane/Wits appraisal had mandibular body-ramus angle of &lt;121.7&deg;.
Notes: Source: Masters Abstracts International, Volume: 45-03, page: 1439.

Thesis (M.Sc.)--University of Toronto, 2006.

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