2种超声器械龈下刮治的效果评价及扫描电镜观察

Evaluation of the clinical effects and scanning electron microscopic observation of different kinds of ultrasonic scaler used in subgingival scaling

目的:比较Odontogain和Prophy Max超声治疗仪在牙周龈下刮治治疗中的效果,并对刮治后的牙根进行扫描电镜观察。方法:选取20例慢性牙周病患者,采用半口对照,随机分为A组(Odontogain组)和B组(Prophy Max组),每组6个患牙。按照分组。分别对受试牙进行超声龈下刮治术。在龈下刮治术前,术后1个月、2个月分别检查观察牙的各项临床指标(BOP、PD、CAL),同时记录2组的操作时间。选择10个离体单根牙,随机分为A组和B组,分别用Odontogain和Prophy Max超声仪进行刮治,记录每颗牙的操作时间,并对刮治后的离体牙根作扫描电镜观察。实验结果采用SAS6．12软件包进行分析。结果:A组和B组在龈下刮治术后1个月和2个月,各项牙周临床指标均有明显改善(P<0．01),A组的改善稍优于B组,但无显著性差异(P>0．05)。在临床及离体牙的操作时间上,A组明显优于B组(P<0．01)。扫描电镜显示,离体牙经刮治后,2组的牙根邻面均较光滑,且A组残留的牙石较少。结论:2种超声治疗仪在牙周治疗中都能达到较好的治疗效果,Odontogain超声治疗仪更快捷、高效。

PURPOSE： To assess and compare the clinical effects of Odontogain and Prophy Max ultrasonic scaler used in periodontal treatment. METHODS： Twenty patients with chronic periodontitis were selected using both the Odontogain （group A） and Prophy Max （group B） ultrasonic scaler in a split mouth design. Six teeth of each patient were included in one group. The time used in each instrumentation was collected, and the periodontal indices （BOP,PD,CAL） were recorded before treatment, one month and two months after treatment ,respectively. Meanwhile, 10 extracted human singlerooted teeth were collected and divided randomly into A and B group. The root surface of the treated teeth were examined with scanning electron microscopy （SEM）. The time used in each instrumentation was recorded. SAS6.12 software package was used for statistical analysis. RESULTS： Each periodontal index of group A and group B had improved significantly one and two months after subgingival scaling （P〈0.01）. The effect of the treatment of group A was better than group B, but there was no significant difference between them （P〉0.05）. For the time used on clinical treatment and extracted teeth , group A was significantly better than group B （P〈0.01）. It was observed from SEM that the root surfaces of both group A and B were smooth after scaling, and the remaining dental calculus of group A was less. CONCLUSION： The two kinds of ultrasonic scaler could improve the clinical indices in periodontal therapy. Odontogain ultrasonic scaler was more effective.