低强度脉冲超声波辅助治疗中度和重度慢性牙周炎的临床观察

Clinical effects of LIPUS on moderate and server chronic periodontitis as an adjunctive treatment

目的:观察低强度脉冲超声波(LIPUS)辅助治疗中重度慢性牙周炎的临床效果。方法:选择符合纳入标准的中重度慢性牙周炎患者44例,以全口超声洁治后1周为基线。随机分为两组,每组各22个患牙位点,实验组行龈下刮治和根面平整(SRP)后LIPUS辐照14 d,对照组SRP后不作处理,分别在治疗前和治疗后3、6个月检查探诊深度(PD)、出血指数(BI)、牙齿动度(TM),同时应用锥形束CT(CBCT)测量牙槽骨高度(ABH)和密度(ABD)。结果:治疗后3、6个月,实验组和对照组PD、BI、TM均较治疗前明显改善,两组间改变无统计学差异(P>0.05);两组治疗前后牙槽骨高度无明显变化,实验组牙槽骨密度较对照组明显增加(P<0.05)。结论:LIPUS临床辅助治疗慢性牙周炎安全有效,且对牙槽骨的修复有促进作用。

AIM： To evaluate the effects of low-intensity pulsed ultrasound （LIPUS） in the treatment of moderate and server chronic periodontitis following scaling and root planning （SRP）. METHODS ： 44 patients with moderate or severe periodontitis were randomly divided into two groups （ n = 22）. All patiehts were treated by ultrasonic polishing and SRP and then the patients in experimental group were treated by plus LIPUS for 14 days （22 sites）, the controls（22 sites） received no LIPUS. Clinical parameters including probing depth （PD）, bleeding index （BI） and tooth mobility （TM） were recorded before treatment, 3 and 6 months after treatment respectively. Cone-beam compu- ted tomography （CBCT） was taken to evaluate alveolar bone height （ABH） and alveolar bone density （ABD）. RE- SULTS ： PD, BI, TM of both groups were decreased significanly after treatment （ P 〈 0.05 ）, and no difference was found between the two groups （ P 〉 0.05 ）. ABH of both groups showed no change （ P 〉 0.05 ）. ABD of the experimen- tal group was improved more than that of the control group （P 〈 0.05 ）. CONCLUSION ： LIPUS was safe and effec- tive as an adjunctive treatment on moderate and server chronic periodontitis with supplementary effect on alveolar bone repair.