未经批准:在III级中,高平面角的骨骼患者,逆时针旋转上颌关节是必要的。该研究旨在评估III类畸形患者下颌平面变化的长期稳定性。
UNASSIGNED:这是一项回顾性的纵向临床研究。研究了患有III类骨骼畸形和高平面角的患者,这些患者接受了上颌前移和下颌后移的高位重新定位。下颌平面(MP)的变化是该研究的预测因素。年龄,性别,上颌前移的运动量,正颌手术后的下颌后退是变量。正颌手术后12个月A点和B点的复发量是该研究的结果。Pearson相关性检验用于确定双颌正颌手术后A点和B点复发之间的任何相关性。
未经授权:研究了51例患者。截骨术后立即MP变化的平均值为4.66(1.64)度。术后12个月B点水平复发1.08(0.81)mm,垂直复发1.38(0.44)mm。水平和垂直复发与MP变化之间存在相关性(P=0.001)。
UNASSIGNED:似乎III类骨骼畸形和高平面角患者的上颌下颌单元逆时针旋转可能与在B点注意到的垂直和水平复发有关。
UNASSIGNED: In class III, skeletal patients with high plane angle, counterclockwise rotation of maxillomandibular units is necessary. The study was aimed to evaluate the long-term stability of the change of mandibular plane in patients with class III deformity.
UNASSIGNED: This is a retrospective longitudinal clinical study. Patients with class III skeletal deformity and high plane angles who underwent maxillary advancement and superior repositioning with mandibular set back were studied. The change of mandibular plane (MP) was predictive factors of the study. Age, gender, the amount of movement of the maxillary advancement, and mandibular set back following orthognathic surgeries were variables. The amount of relapse at the A and B points 12 months after orthognathic surgeries was outcomes of the study. Pearson correlation test was used to determine any correlation between relapse at the A and B points following bimaxillary orthognathic surgery.
UNASSIGNED: Fifty-one patients were studied. The mean of MP changes immediately after osteotomies was 4.66 (1.64) degrees. The horizontal relapse at B point 12 months after surgeries was 1.08 (0.81) mm, and the vertical relapse was 1.38 (0.44) mm. There was a correlation between the horizontal and vertical relapse with MP change (P = 0.001).
UNASSIGNED: It seems that the counterclockwise rotation of maxillomandibular units in patients with class III skeletal deformity and high plane angle may be associated with the vertical and horizontal relapse that was noticed at the B point.