Kawashima H, Sato S, Kishida M, Ito K
Department of Periodontology, Nihon University School of Dentistry, Tokyo, Japan.
J Periodontal Res. 2007 Feb;42(1):90-5. doi: 10.1111/j.1600-0765.2006.00924.x.
This study compared the effectiveness of two piezoelectric ultrasonic scalers and a hand scaler for subgingival scaling and root planing in vivo.
Fifteen patients with advanced periodontal disease and with teeth scheduled for extraction were selected for this study. Three experimental groups of 10 teeth each were treated with one of two piezoelectric ultrasonic scalers [Vector scaler and Enac scaler] or with a hand scaler. Instrumentation was continued until the root surface felt hard and smooth to an explorer tip. The root surface characteristics after instrumentation were examined using scanning electron microscopy, and the amount of remaining calculus, roughness and loss of tooth substance were estimated using the remaining calculus index and roughness loss of tooth substance index.
The remaining calculus index did not differ significantly among the three groups. The roughness loss of tooth substance index was significantly lower for the Vector scaler and Enac scaler groups than for the hand scaler group and also differed significantly between the Vector scaler and Enac scaler groups.
This study suggests that the Vector scaler produces a smooth root surface with minimal loss of tooth substance. It is a reasonable choice for gentle periodontal maintenance treatment.
本研究比较了两种压电超声洁治器和一种手动洁治器在体内进行龈下刮治和根面平整的效果。
选取15例患有晚期牙周病且计划拔牙的患者参与本研究。将患者分为三个实验组，每组10颗牙齿，分别使用两种压电超声洁治器[Vector洁治器和Enac洁治器]之一或手动洁治器进行治疗。持续进行器械操作，直到用探针检查根面感觉坚硬且光滑。使用扫描电子显微镜检查器械操作后的根面特征，并使用剩余牙石指数和牙体组织粗糙度丧失指数评估剩余牙石量、粗糙度和牙体组织丧失情况。
三组之间的剩余牙石指数无显著差异。Vector洁治器组和Enac洁治器组的牙体组织粗糙度丧失指数显著低于手动洁治器组，且Vector洁治器组和Enac洁治器组之间也存在显著差异。
本研究表明，Vector洁治器能产生光滑的根面，牙体组织丧失最少。它是温和牙周维护治疗的合理选择。
