两种刮治方法对老年牙周炎患者的临床疗效及患者疼痛感受的比较
량충괄치방법대노년아주염환자적림상료효급환자동통감수적비교
Comparison of the clinical efficacy of full-mouth ultrasonic debridement versus quadrant scaling and root planning and the perception of pain of the elderly patients with chronic periodontitis
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