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牙周病患牙17只。随机分为5组。第1组作闭合性刮治,第2组作体外根面刮治,第3组为刮治后3％双氧水处理,第4组为刮治后pH1枸橡酸处理,第5组为病变对照。全部标本作扫描电镜观察。结果表明:机械刮治后根面较平整光滑;闭合性刮治的标本根面有纤维蛋白粘附;所有未经酸处理的牙均有根面污染层;pH1枸椽酸处理后的根面很少有污染层,除见有残余牙骨质外,基质胶元纤维明显暴露。
17 cases of periodontal disease teeth. Randomly divided into 5 groups. The first group for closed curettage, the second group for the root of the external surface of the curettage, the third group for the treatment of 3% hydrogen peroxide after treatment, the fourth group for the treatment of pH1 citric acid scraping, the fifth group for the lesion control . All specimens for scanning electron microscopy. The results showed that the root surface was smoother and smoothed after mechanical scraping. The root surface of the scraped and scraped samples had fibrin adhesion. All the untreated teeth had root contamination layer. The pH1 citrate root surface Few contaminated layer, in addition to see the residual cementum, the matrix gel fiber obvious exposure.