Nevzatoğlu Sirin, Küçükkeleş Nazan
Aust Orthod J. 2014 May;30(1):19-31.
The long-term treatment results of surgically-assisted facemask therapy were assessed by a comparison of the immediate protraction effects with those seen at five years review.
Nine patients treated with a corticotomy-assisted maxillary protraction protocol were recalled five years following protraction. Cephalometric films taken before treatment (T0), immediately after maxillary protraction (T1) and five years after treatment (T2) were compared.
The short-term results of surgically-assisted facemask therapy showed significant skeletal and soft tissue changes. After five years, the profile and dental relationships were well maintained and a cephalometric analysis revealed a stable vertical increase but only partially maintained soft tissue changes with loss of sagittal advancement. There was significant upper incisor proclination providing dental camouflage.
Patients who are treated with corticotomy-assisted maxillary advancement should be very carefully selected. Assessment criteria include a low mandibular plane angle Class III patients who have severe maxillary retrognathism unable to be treated by conventional orthopaedic correction alone; patients who have almost completed growth and missed the chance of earlier orthopaedic correction, as well as patients who are not willing to accept bimaxillary orthognathic surgery, may be successfully treated.
通过比较外科辅助面罩治疗的即刻前牵引效果与五年复查时的效果,评估其长期治疗结果。
对9例采用皮质骨切开辅助上颌前牵引方案治疗的患者,在牵引后五年进行回访。比较治疗前(T0)、上颌牵引后即刻(T1)和治疗后五年(T2)拍摄的头影测量片。
外科辅助面罩治疗的短期结果显示出显著的骨骼和软组织变化。五年后,侧面轮廓和牙关系得到良好维持,头影测量分析显示垂直方向有稳定增加,但矢状向进展丢失,软组织变化仅部分维持。上切牙明显前倾,起到了牙齿掩饰作用。
采用皮质骨切开辅助上颌前徙治疗的患者应经过非常仔细的挑选。评估标准包括下颌平面角低的III类患者,他们有严重的上颌后缩,无法仅通过传统正畸矫正治疗;几乎已完成生长且错过早期正畸矫正机会的患者,以及不愿接受双颌正颌手术的患者,可能会得到成功治疗。