3种方法根面平整对牙根表面形态影响的扫描电镜观察  

SEM Study on the Root Surface Morphology Using Three Methods Scaling and Root Planning

作　　者：解用江[1] 焦娇[1] 阎雷[1] 宁佳[1] 王洪霞[1] 毛庆华[1] 方玲[1] 

机构地区：[1]大庆油田总医院口腔内科,黑龙江大庆163001

出　　处：《口腔医学研究》2013年第12期1168-1170,共3页Journal of Oral Science Research

摘　　要：目的:本文用扫描电镜观察比较Gracey刮治器、Vector超声治疗仪和Er:YAG激光根面平整引起牙根表面形态学改变。方法:24颗因重度牙周炎拔除牙齿随机分为3组。A组,Gracey刮治器组,B组Vector超声治疗仪组,C组Er:YAG激光组。扫描电镜观察牙根表面形态。结果:A组牙根表面可见不规则的深沟和空洞样缺损。B组牙根表面清洁光滑,未见工作尖的痕迹,颗粒状结构覆盖于牙骨质层。C组牙根表面形态几乎没有改变,高倍镜下表层组织熔融呈火山状。结论:Er:YAG激光和Vector超声治疗仪都能有效地去除龈下牙石,而且与Gracey刮治器相比能更好的保存牙根表面健康组织。Objective： To compare the morphological changes of root surface after scaling and root planing by Gracey hand instrument, Vector ultrasonic instrument and Er： YAG laser. Methods： 24 extracted teeth for severe periodontal disease were divided into three groups. A group was treated with Gracey hand instrument, B group was treated with Vector ultrasonic instrument and C group was irradiated with Er： YAG laser. We observed the mor phology of the root surfaces using SEM. Results： It was observed that irregularly deep grooves and hole defects in group A. Group B was observed that the root surface was clean and smooth, no sharp traces, the cementum layer was covered by granular structure. Root surface morphology of the group C was hardly change, at high magnifica tion, melting feature was volcano-like. Conclusion： Er：YAG laser and the Vector ultrasonic instrument can effec tively remove subgingival calculus, and are able to save the health tissue of the root surface compared than Gracey hand instrument.

关 键 词：Gracey刮治器 Vector超声治疗仪 Er YAG激光 扫描电镜 根面平整 

分 类 号：R781.4[医药卫生—口腔医学]