超声波龈上洁治术是最基本的去除菌斑及牙石的方法。很多研究结果提示超声器械会使根面变得粗糙[1],因而建议洁治刮治术后应对牙体进行抛光,以避免术后菌斑、牙石或色素的加速沉积,影响疗效保持,术后需要进一步抛光来增加牙 Ultrasonic supragingival scaling is the most basic method of removing plaque and calculus. Many studies suggest that ultrasonic instruments will roughen the root surface [1], therefore, it is suggested that the tooth should be polished after shaving and curettage to avoid the accelerated deposition of plaque, calculus and pigment after operation, and to maintain the curative effect After the need for further polishing to increase teeth