【摘要】 目的:通过对单颗后牙缺失采用翻瓣和不翻瓣种植技术完成的种植手术病例进行比较,评价不翻瓣种植技术的临床效果。方法:选取后牙区单牙缺失的患者40例,随机分为研究组和对照组,各20例。研究组行不翻瓣种植手术,对照组行常规翻瓣种植手术。观察两组患者的术后反应。以种植体植入即刻为观察基线,观察冠修复后即刻及6个月、12个月三个时间点时的种植体稳定性,软组织的沟内出血指数(SBI)和探诊深度(PD),以及牙槽嵴边缘骨高度变化(MBL)。结果:研究组患者术后反应轻微,对手术的满意度较高。两组种植体稳定,无术后感染发生。牙周软组织健康,SBI(0)占总观察数的85%(34例)。研究组三个时间点PD分别为2.645±0.401mm、2.545±0.270mm和2.550±0.278mm,对照组分别为2.690±0.401mm、2.630±0.342mm和2.545±0.333mm。研究组术后12个月总MBL为0.255±0.105mm,对照组0.325±0.273mm。两组PD和MBL均值差异无显著统计学意义(P>0.05)。结论:不翻瓣种植与翻瓣种植的软组织表现和边缘骨改变无差异,但不翻瓣种植能显著减轻患者的术后反应,尤适用于老年缺牙患者。更多还原

【Abstract】 Objective: The aim of this study was to evaluate the clinical effects of flapless surgery contract with conventional flapped surgery for single implant placement in posterior dental arch. Methods: A total of 40 patients with posterior teeth missing were randomly divided into study group and control group, each with a total of 20 cases. 40 implants were placed respectively in study group by means of flapless surgery, and in control by means of traditional flapped surgery. Postoperative response included implant stability, peri-implant soft tissue condition such as sulcus bleeding index(SBI), probing depth(PD) and marginal bone loss(MBL) were detected just after crown restoration 3 months after implantation, and at time of 6and 12 months after loading. We set the original marginal bone level right after stage-one operation as the baseline to be compared. Results: Patients in study group satisfied more with flapless surgery for slight response. All implants in the two groups were stable, and peri-implant soft tissues were healthy. No postoperative infection was found, and total percentage of SBI(0) was 85%(34 in 40). PD at the three observation points of time in study group were respectively 2.645 ±0.401mm、2.545±0.270 mm and 2.550±0.278 mm, while 2.690±0.401mm、2.630±0.342 mm and 2.545±0.333 mm in group of control.Overall average of MBL was 0.255 ±0.105 mm in study group 12 months after loading, and that was 0.325 ±0.273 mm in control. No statistically significant were found between the two groups(P >0.05) concerning PD and MBL. Conclusion:The results of this study demonstrated that soft tissue conditions and changes on marginal bone level in flapless surgery were similar to that of flapped implantation, but the former was more advantageous to relieving postoperative suffering of patients, especially beneficial to the elder people.更多还原