@article{oai:kanazawa-u.repo.nii.ac.jp:00013505,
 author = {Ueki, Koichiro and Okabe, Katsuhiko and Miyazaki, Mao and Mukozawa, Aya and Moroi, Akinori and Marukawa, Kohei and Nakagawa, Kiyomasa and Yamamoto, Etsuhide},
 issue = {5},
 journal = {Journal of Oral and Maxillofacial Surgery},
 month = {May},
 note = {Purpose The purpose of this study is to compare the time-course changes in condylar long-axis and skeletal stability after sagittal split ramus osteotomy (SSRO) with an unsintered hydroxyapatite (u-HA)/poly-L-lactic acid (PLLA) plate, PLLA plate, or titanium plate. Patients and Methods Of 60 Japanese patients diagnosed with mandibular prognathism, 20 underwent SSRO with a u-HA/PLLA plate system, 20 underwent SSRO with a PLLA plate system, and 20 underwent SSRO with a conventional titanium plate system. The time-course changes in condylar long-axis and skeletal stability were assessed by use of axial, frontal, and lateral cephalograms. Results Compared with the u-HA/PLLA group, the titanium group showed a significantly greater change in the right condyle angle between initially and 1 month (P = .0105) and intercondylar axes angle between 1 and 3 months (P = .0013). The PLLA group showed a significantly greater change than the titanium group (P = .0043) and u-HA/PLLA group (P = .0002) in terms of ramus inclination between 1 and 3 months; however, there were no significant differences among the 3 groups in the other measurements for each time interval. Conclusion This study suggests that there are no significant differences in postoperative time-course changes among a u-HA/PLLA plate system, PLLA plate system, and conventional titanium plate system. © 2011 American Association of Oral and Maxillofacial Surgeons., 金沢大学医薬保健研究域医学系},
 pages = {1464--1468},
 title = {Skeletal stability after mandibular setback surgery: Comparisons among unsintered hydroxyapatite/poly-L-lactic acid plate, poly-L-lactic acid plate, and titanium plate},
 volume = {69},
 year = {2011}
}