Nyman S, Lindhe J, Rosling B
J Clin Periodontol. 1977 Nov;4(4):240-9. doi: 10.1111/j.1600-051x.1977.tb01896.x.
A clinical trial was performed to study the result of periodontal treatment following different modes of periodontal surgery in patients not recalled for maintenance care. The material consisted of 25 patients distributed into 5 groups. Following an initial examination, all patients underwent presurgical treatment including case presentation and instruction in oral hygiene measures. This instruction was given once. The various patient groups were then subjected to one of the following surgical procedures: 1) the apically repositioned flap operation including elimination of bony defects 2) the apically repositioned flap operation including curettage of bony defects but without removal of bone 3) the "Widman flap" technique including elimination of bony defects 4) the "Widman flap" technique including curettage of bony defects but without removal of bone 5) gingivectomy including curettage of bony defects but without removal of bone. Six, 12 and 24 months after completion of the treatment, the patients were recalled for assessment of their oral hygiene standard and periodontal conditions. The results showed that case presentation and oral hygiene instruction given once, only temporarily improved the patient's oral hygiene habits. Renewed accumulation of plaque in the operated areas resulted in recurrence of periodontal disease including a significant further loss of attachment. All five different techniques for surgical pocket elimination were equally ineffective in preventing recurrence of destructive periodontitis.
进行了一项临床试验，以研究在未被召回接受维护治疗的患者中，不同牙周手术方式后的牙周治疗结果。研究材料包括25名患者，分为5组。在进行初始检查后，所有患者都接受了术前治疗，包括病例介绍和口腔卫生措施指导。该指导只进行了一次。然后，各患者组接受以下一种手术操作：1）根向复位瓣手术，包括消除骨缺损；2）根向复位瓣手术，包括刮治骨缺损但不切除骨；3）“Widman瓣”技术，包括消除骨缺损；4）“Widman瓣”技术，包括刮治骨缺损但不切除骨；5）牙龈切除术，包括刮治骨缺损但不切除骨。治疗完成后6个月、12个月和24个月，召回患者以评估其口腔卫生标准和牙周状况。结果表明，仅进行一次的病例介绍和口腔卫生指导只是暂时改善了患者的口腔卫生习惯。手术区域菌斑的再次积聚导致牙周疾病复发，包括附着丧失的显著进一步加重。所有五种不同的消除牙周袋的手术技术在预防破坏性牙周炎复发方面同样无效。
