Del Peloso Ribeiro Erica, Bittencourt Sandro, Nociti Francisco H, Sallum Enilson A, Sallum Antônio W, Casati Márcio Zaffalon
Department of Prosthodontics and Periodontics, Division of Periodontics, School of Dentistry at Piracicaba, University of Campinas, Campinas, SP, Brazil.
J Periodontol. 2007 Feb;78(2):224-30. doi: 10.1902/jop.2007.060312.
The aim of this clinical trial was to compare the outcome of non-surgical treatment of interproximal and non-interproximal Class II furcation involvements.
Thirty-eight patients presenting at least one Class II furcation involvement that bled on probing with a probing depth (PD) > or = 5 mm were recruited. Furcation involvements were grouped as either buccal and lingual furcation involvements (BLFI) or interproximal furcation involvements (IFI). The following clinical outcomes were evaluated: visible plaque index, bleeding on probing (BOP), position of the gingival margin, relative attachment level (RAL), PD, and relative horizontal attachment level (RHAL). N-benzoyl-l-arginine-p-nitroanilide (BAPNA) testing was used to analyze trypsin-like activity in dental biofilm. All parameters were evaluated at baseline and 1, 3, and 6 months after non-surgical subgingival instrumentation.
Six months after treatment, both groups had similar means of RAL and RHAL gain (P >0.05). These variables were 1.22 and 1.07 mm in the IFI group and 1.38 and 1.20 mm in the BLFI group, respectively. The PD reduction was significantly greater in the BLFI group than in the IFI group (2.59 and 2.11 mm, respectively; P <0.05). The BLFI group presented fewer sites with PD > or = 5 mm than the IFI group at all post-treatment periods. At 6 months, the BAPNA test showed that only the BLFI group had values significantly different from baseline. This means that the BLFI group had significantly lower BAPNA values compared to the IFI group at 6 months.
Buccal and lingual Class II furcation involvements respond better to non-surgical therapy compared to interproximal Class II furcation involvements.
本临床试验的目的是比较Ⅱ度根分叉病变邻面和非邻面非手术治疗的效果。
招募了38例至少有一处Ⅱ度根分叉病变且探诊出血、探诊深度（PD）≥5mm的患者。根分叉病变分为颊舌侧根分叉病变（BLFI）和邻面根分叉病变（IFI）。评估以下临床结果：可见菌斑指数、探诊出血（BOP）、牙龈边缘位置、相对附着水平（RAL）、PD以及相对水平附着水平（RHAL）。使用N-苯甲酰-L-精氨酸-对硝基苯胺（BAPNA）试验分析牙菌斑中的胰蛋白酶样活性。所有参数在基线时以及非手术龈下器械治疗后1、3和6个月进行评估。
治疗6个月后，两组的RAL和RHAL增加均值相似（P>0.05）。IFI组的这些变量分别为1.22和1.07mm，BLFI组分别为1.38和1.20mm。BLFI组的PD降低显著大于IFI组（分别为2.59和2.11mm；P<0.05）。在所有治疗后时期，BLFI组PD≥5mm的部位均少于IFI组。在6个月时，BAPNA试验显示只有BLFI组的值与基线有显著差异。这意味着在6个月时，BLFI组的BAPNA值显著低于IFI组。
与邻面Ⅱ度根分叉病变相比，颊舌侧Ⅱ度根分叉病变对非手术治疗的反应更好。
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