华西口腔医学杂志

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Er,Cr:YSGG激光照射后牙周病牙根面的形态学研究和钙磷比率分析

孙淑萍;潘亚萍;张冬梅;邹博;   

  1. 中国医科大学口腔医院  牙周科,辽宁  沈阳 110002
  • 收稿日期:2006-10-25 修回日期:2006-10-25 出版日期:2006-10-20 发布日期:2006-10-20
  • 通讯作者: 潘亚萍,Tel:024-22891701
  • 作者简介:孙淑萍(1961-),女,吉林人,副主任医师,硕士,现在空军装备研究院门诊口腔科工作
  • 基金资助:

    国家“十五”科技攻关资助项目(2004BA720A26)

Morphological Study and Ca/P Ratio Analysis of Er, Cr:YSGG Laser Irradiation on Periodontal Diseased Root Surfaces

SUN Shu-ping, PAN Ya-ping, ZHANG Dong-mei, ZOU Bo
  

  1. Dept. of Periodontology, School of Stomatology, China Medical University, Shenyang 110002, China
  • Received:2006-10-25 Revised:2006-10-25 Online:2006-10-20 Published:2006-10-20

摘要:

目的  观察Er,Cr:YSGG激光照射后牙周病牙根面的形态学变化及主要元素钙、磷的改变。方法  收集中、老年人离体牙周病牙18颗、健康阻生第三磨牙6颗。对18颗牙周
病患牙根面进行平整后,随机选取12颗作激光照射研究;其余6颗作酸处理研究;6颗第三磨牙作健康对照。扫描电镜下观察不同根面处理方式导致的根面形态变化,用色谱分析仪分析各组根面钙磷比率(Ca/P),并进行统计学比较。结果  激光照射组可有效去除玷污层,得到粗糙度较均匀、洁净的根面。酸处理组去除根面玷污层能力较强,但电镜观察两组根面形态有差异。两组均未发现熔融、炭化、裂纹及牙本质暴露。色谱分析仪分析结果显示激光照射组与酸处理组根面钙磷比率无明显差异(P>0.05)。结论  Er,Cr:YSGG激光照射根面平整后的牙周病牙根面可有效去除玷污层及表层病变牙骨质,具有潜在的应用
价值。

关键词: Er, Cr:YSGG激光, 牙周病, 根面, 玷污层, 钙磷比率

Abstract:

Objective  To observe the morphological transformation and Ca/P changes of the periodontally disease root surfaces irradiated by Er, Gr:YSGG Laser. Methods 
18 periodontally diseased teeth and 6 wisdom teeth were collected in vitro. After 18 periodontally diseased teeth were planed, 12 teeth were randomly selected as the  laser treatment group, the others as the acid treatment group. The 6 wisdom teeth were selected as the healthy control.Then the evaluation for root surfaces
morphological transformation was conducted by SEM. An energy spectrum analyzer was used to analyze the Ca/P ratio of root surfaces. Results  The root surfaces were clean and even in the laser treatment group. Smear layer could also be effectively eliminated in the laser treatment group and the acid treatment group, but the SEM results were different. Atom content analysis showed that the Ca/P ratio of the laser treatment group and the acid treatment group had no distinct difference. Conclusion  It is effective to remove smear layers and infected cementum of surface layers with Er, Cr:YSGG irradiating on the planed periodontal root surfaces

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