【摘要】 目的:拟比较粘接性夹板与钢丝结扎牙弓夹板应用于外伤牙固定的效果。方法:将2006-01/2008-09在广西医科大学第五附属医院口腔科就诊的牙外伤患者75例按2∶1比例随机分为2组,粘接组(50例)在外伤牙和相邻健康牙的牙面上用自酸蚀粘接剂及光敏树脂形成突起,将扁钢丝穿过各树脂突,光照固化,从而形成粘接性夹板;对照组(25例)用传统的钢丝结扎牙弓夹板固定。固定持续4周。在拆除夹板后1周对患牙的牙髓活力、松动度进行检查,拍X射线片了解牙槽骨区情况,评价患牙治疗的有效率;在固定前后对相邻基牙进行牙周指数测定。3～6个月后复查相关指标。结果:在固定结束时,粘接组的患牙治疗有效率为96.5%,而对照组的患牙治疗有效率为81.8%,两组间差异具有显著性意义(χ2=8.79,P<0.05);粘接组中相邻基牙的牙龈指数、牙周袋深度、附着丧失均明显好于对照组(P<0.05)。3～6个月后复查时,粘接组的患牙治疗有效率为93.9%,而对照组的患牙治疗有效率为72.7%,两组间差异具有显著性意义(χ2=13.00,P<0.05);粘接组中相邻基牙的牙龈指数、牙周袋深度、附着丧失均明显好于对照组(P<0.05)。结论:在外伤牙的固定方面,粘接性夹板优于传统的钢丝结扎牙弓夹板。更多还原

【Abstract】 AIM:To compare the clinical effects of self-etching adhesive technique versus traditional wire-ligated technique in fixation of traumatized teeth.METHODS:Seventy-five patients with tooth trauma who were admitted to Department of Stomatology,Fifth Hospital of Guangxi Medical University between January 2006 and September 2008 were selected,and randomly divided into two groups with the ratio of 2:1.In the adhesive group(n=50),self-etching adhesive technique was applied on the traumatized teeth and adjacent healthy teeth in combination with photosensitive resin to form prominence,and steel wire passed through the resin prominence,solidified by illumination to form adhesive splint.In the control group(n=25),traumatized teeth were fixed with splints ligated by steel-wires.Fixation lasted for 4 weeks.At the end of one week after fixation,the healing effect was evaluated by X-ray.After 3-6 months,the periodontal indexes were evaluated again.RESULTS:At the end of fixation,the healing effective percentage of the adhesive group was 96.5%,and the control group was 81.8%.There was significant difference between two groups(χ2=8.79,P < 0.05).The gingival indexes,periodontal-pocket depth,and attachment loss of adjacent abutment teeth of fixation in the adhesive group were significantly better than the control group(P < 0.05).In the follow-up of 3-6 months,the healing effective percentage of the adhesive group was 93.9%,and the control group was 72.7%.There was significant difference between two groups(χ2=13.00,P < 0.05).The gingival indexes,periodontal-pocket depth,and attachment loss of adjacent abutment teeth of fixation in the adhesive group were remarkably better than the control group(P < 0.05).CONCLUSION:The results suggest that self-etching adhesive technique is better than traditional wire-ligated technique in fixation of traumatized teeth.更多还原