Güven Bengisu Akarsu, Ciğer Semra
Department of Orthodontics, Hacettepe University School of Dentistry, Ankara, Turkey.
Turk J Orthod. 2020 Mar 1;33(1):8-12. doi: 10.5152/TurkJOrthod.2020.19108. eCollection 2020 Mar.
To investigate the effects of fixed anterior biteplane treatment on temporomandibular joint in deep bite patients.
The sample comprised 17 Class II patients with deep bite and decreased lower anterior facial height. The average patient age was 9.9±0.9 years. Transcranial temporomandibular joint radiographs were obtained from the subjects before (T0) and after fixed anterior biteplane treatment (T1). Anterior joint space, posterior joint space, superior joint space, anteroposterior thickness of the condylar head, vertical height of the articular fossa, and the articular fossa slope were measured on temporomandibular joint radiographs to evaluate the position of the mandibular condyles in the glenoid fossa.
The average treatment duration was 8.5±2.1 months. Slope of the articular fossa, vertical height of the articular fossa, anteroposterior thickness of the condyle, posterior joint space, superior joint space, and anterior joint space showed no statistically significant difference between T0 and T1 (p>0.05).
Fixed anterior biteplane appliance treatment did not change the condyle fossa relationship in Class II deep bite patients at the time of appliance removal.
探讨固定前牙平面导板治疗对深覆合患者颞下颌关节的影响。
样本包括17例Ⅱ类深覆合且下颌前部面部高度降低的患者。患者平均年龄为9.9±0.9岁。在固定前牙平面导板治疗前（T0）和治疗后（T1）从受试者处获取颞下颌关节经颅X线片。在颞下颌关节X线片上测量关节前间隙、关节后间隙、关节上间隙、髁突前后厚度、关节窝垂直高度和关节窝斜率，以评估下颌髁突在关节窝中的位置。
平均治疗时长为8.5±2.1个月。关节窝斜率、关节窝垂直高度、髁突前后厚度、关节后间隙、关节上间隙和关节前间隙在T0和T1之间无统计学显著差异（p>0.05）。
在拆除矫治器时，固定前牙平面导板矫治并未改变Ⅱ类深覆合患者的髁突-关节窝关系。
