三种牙周夹板治疗下前牙重度牙周炎：谁是首选材料？

背景：研究认为夹板固定可促进牙周组织修复和松动牙的预后改善。但夹板传力作用的大小，与夹板材料的刚度以及牙齿和夹板两者之间的密合程度有关系。目的：比较3种牙周夹板治疗下前牙重度牙周炎的疗效，找出最适合临床牙周夹板固定的材料。方法：将临床诊断为下前牙重度牙周炎的72例患者随机分为3组，每组24例，分别应用尼龙丝、正畸托槽和超强玻璃纤维3种牙周夹板对牙周炎患牙进行松牙固定治疗，并分别对3组患者治疗后1，6和12个月的临床疗效及各项牙周指数进行比较。结果与结论：玻璃纤维组牙周夹板固定后的1，6，12个月的临床有效率较高，分别是100%，100%和95.8%；尼龙丝组牙周夹板固定后6，12个月的菌斑指数、出血指数、牙周袋深度3项牙周指标最差，与正畸托槽组及玻璃纤维组比较差异有显著性意义（P 〈0.05）。结果表明应用玻璃纤维牙周夹板治疗重度牙周炎远期疗效显著，各项牙周指标恢复良好，临床上可以作为牙周炎松动牙固定的首选材料。

Three kinds of periodontal stabilization splints in severe periodontitis of the mandibular anterior teeth：which one is preferred？

BACKGROUND：It is believed that the splintage can promote periodontal tissue repair and improve the prognosis of loose teeth. However, the force of the splint is associated with the rigidity of the splint and adaptation between the teeth and the splint. OBJECTIVE： To evaluate the therapeutic effects of the nylon composite resin periodontal splint, the fiber-reinforced composite periodontal splint and the bracket periodontal splint on the treatment of severe periodontitis of the mandibular anterior teeth. METHODS：Seventy-two patients with severe periodontitis of the mandibular anterior teeth were randomized into 3 groups, with 24 cases in each group： nylon composite resin periodontal splint, fiber-reinforced composite periodontal splint and bracket periodontal splint groups. The clinical effects of the three kinds of periodontal splints and periodontal indexes were compared at 1, 6 and 12 months after splinting. RESULTS AND CONCLUSION： The clinical effects in the group of the fiber-reinforced composite periodontal splint were significantly better than those in the other two groups at 1, 6, 12 months, which were 100%, 100% and 95.8%, respectively. The plaque index, bleeding index, and pocket depth were worse in the group of the nylon composite resin periodontal splint than the other two groups （P 〈 0.05）. Results suggest that the fiber-reinforced composite periodontal splint is preferred to preserve the loosened teeth with severe periodontitis.