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本文旨在回顾分析影响引导组织再生(guided tissue regeneration,GTR)治疗骨下袋的临床疗效的相关因素。 材料和方法 38名全身健康的牙周炎患者,平均年龄44.9岁。经术前彻底洁治使根面平整,并进行卫生宣教,患牙牙周袋深度(probing depths,PD)仍然≥6mm,骨缺失深度≥4mm。手术经翻瓣,刮除肉芽,根面清创,然后置入ePTFE膜覆盖骨缺损区,使之越骨嵴冠向伸展1mm,根向3mm,缝合固定薄膜后,再将瓣复位缝合。术后防止感染。3周拆线,5周取出膜,同时切除瓣内面上皮剩余,再复位缝合,1周后拆线。术后维持口腔卫生,每3月洁牙1次。所有病例均无感染等并发症。术后半年统计结果。 结果 经资料收集及数据分析,显示:①在手术前后口腔卫生标准一致的前提下,患牙卫生状况有明显提高。健康牙龈由26.3％升至63.2％;探诊出血者由73.7％降至34.2％。②术后PD,临床附着水平(clinical attachment levels,CAL),探诊骨水平(probing bone levels,PBL)都有临床及统计学意义上的改善,CAL获得
The purpose of this review is to review the relevant factors that influence the clinical efficacy of guided tissue regeneration (GTR) in the treatment of subglacial sutures. Materials and Methods 38 healthy periodontitis patients, mean age 44.9 years old. Thoroughly clean the surface before surgery to make the root surface flat and carry out health education. The probing depths (PD) of the affected teeth are still ≥6mm, and the depth of bone loss is ≥4mm. Surgery flap, curettage granulation, root debridement, and then placed ePTFE membrane covered bone defect area, so that the more crest ridge crown stretching 1mm, root 3mm, suture the fixed film, and then the flap reduction suture. After surgery to prevent infection. 3 weeks stitches, remove the membrane 5 weeks, while resecting the flap epithelial remnant, and then reset suture, stitches after 1 week. Oral hygiene after surgery, dental cleaning once every 3 months. No case of infection and other complications. Six months after the statistical results. Results The data collection and data analysis showed that: (1) There was a significant improvement in the hygiene status of the affected teeth on the premise of consistent oral hygiene standards before and after surgery. The healthy gum rose from 26.3% to 63.2%, while the number of probing bleeding decreased from 73.7% to 34.2%. ② The postoperative PD, clinical attachment levels (CALs), and probing bone levels (PBLs) all improved clinically and statistically, and CALs were obtained