Andersson B, Bratthall G, Kullendorff B, Gröndahl K, Rohlin M, Attström R
Department of Periodontology, Faculty of Odontology, Lund University, Sweden.
J Clin Periodontol. 1994 Mar;21(3):211-6. doi: 10.1111/j.1600-051x.1994.tb00306.x.
The present study was designed to compare the healing results after treatment of buccal class II furcation defects in mandibular molars utilizing guided tissue regeneration (GTR) technique or coronally positioned flap (CPF) technique. The patient sample consisted of 8 subjects with 18 bilateral furcation defects in mandibular molars. At baseline, 6 and 12 months postoperatively assessments of plaque index, gingival index, probing pocket depths, probing attachment level and bleeding on probing were recorded. Radiographic assessment was performed using conventional radiographs and subtraction images at baseline and 12 months postoperatively. The furcation defects were randomly assigned in each patient to either the GTR or the CPF technique. 12 months postoperatively, there was a statistically significant reduction in probing pocket depths in the GTR treated teeth and a tendency to gain of probing attachment levels 6 months postoperatively. The CPF group showed a statistically significant reduction of probing pocket depths at 6 months and a tendency to reduction after 12 months. The radiological assessment demonstrated gain of interradicular bone tissue in 2 furcation defects of the GTR group. Gain of bone tissue could not be demonstrated in the CPF group. No statistically significant differences were observed between the 2 treatment modalities.
本研究旨在比较采用引导组织再生（GTR）技术或冠向复位瓣（CPF）技术治疗下颌磨牙颊侧Ⅱ度根分叉病变后的愈合效果。患者样本包括8名受试者，其下颌磨牙存在18处双侧根分叉病变。在基线、术后6个月和12个月时，记录菌斑指数、牙龈指数、探诊袋深度、探诊附着水平和探诊出血情况。在基线和术后12个月时，使用传统X线片和减影图像进行影像学评估。在每位患者中，根分叉病变被随机分配接受GTR技术或CPF技术治疗。术后12个月，接受GTR治疗的牙齿探诊袋深度有统计学意义的降低，术后6个月有探诊附着水平增加的趋势。CPF组在术后6个月时探诊袋深度有统计学意义的降低，术后12个月有降低的趋势。影像学评估显示GTR组2处根分叉病变有根间骨组织增加。CPF组未显示骨组织增加。两种治疗方式之间未观察到统计学意义上的显著差异。
