Li Ping, Feng Hai-lan, Zhou Chong-yang
Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Zhonghua Kou Qiang Yi Xue Za Zhi. 2011 May;46(5):297-9.
To evaluate the adoption of the condyle position of patients with extensive tooth wear during occlusal rehabilitation, and the correlation between increased vertical dimensions and the changes of joint spaces.
Twenty-seven patients (five from Beifang hospital, others from Peking University School and Hospital of Stomatology) with extensive tooth wear were selected and received occlusal rehabilitation treatment. The radiographs of standard Schüllers position were taken before treatment (stage 1), 1 month following delivery of temporary restoration (stage 2), and 1 month following delivery of permanent restoration (stage 3).
The superior, anterior and posterior joint spaces were (3.24 ± 0.16), (2.06 ± 0.11), (1.89 ± 0.13) mm at stage 1; (3.61 ± 0.15), (1.94 ± 0.10), (2.52 ± 0.11) mm at stage 2; (3.49 ± 0.19), (1.93 ± 0.10), (2.40 ± 0.13) mm at stage 3. The posterior joint spaces at stage 2 and stage 3 were significantly larger than that at stage 1(P < 0.01). The superior spaces at stage 2 were significantly larger than that at stage 1 (P < 0.05). No correlations between the increased vertical dimensions and the changes of joint spaces were found in the three stages (P > 0.05).
The condyle positions in the patients with extensive tooth wear changed after occlusal rehabilitation.
评估广泛牙齿磨损患者在咬合重建过程中髁突位置的变化，以及垂直距离增加与关节间隙变化之间的相关性。
选取27例广泛牙齿磨损患者（5例来自北方医院，其余来自北京大学口腔医学院及口腔医院），接受咬合重建治疗。在治疗前（第1阶段）、临时修复体戴入后1个月（第2阶段）和永久修复体戴入后1个月（第3阶段）拍摄标准许勒位X线片。
第1阶段上、前、后关节间隙分别为（3.24±0.16）、（2.06±0.11）、（1.89±0.13）mm；第2阶段分别为（3.61±0.15）、（1.94±0.10）、（2.52±0.11）mm；第3阶段分别为（3.49±0.19）、（1.93±0.10）、（2.40±0.13）mm。第2阶段和第3阶段的后关节间隙明显大于第1阶段（P<0.01）。第2阶段的上关节间隙明显大于第1阶段（P<0.05）。三个阶段垂直距离增加与关节间隙变化之间均未发现相关性（P>0.05）。
广泛牙齿磨损患者在咬合重建后髁突位置发生了改变。
