Treatment of Mandibular 3-Wall Intrabony Defects by Flap Debridement and Expanded Polytetrafluoroethylene Barrier Membranes. Long-Term Evaluation of 32 Treated Patients.
Treatment of Mandibular 3-Wall Intrabony Defects by Flap Debridement and Expanded Polytetrafluoroethylene Barrier Membranes. Long-Term Evaluation of 32 Treated Patients.
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通过皮瓣清创术和膨胀聚四氟乙烯屏障膜治疗下颌三壁骨内缺损。
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发表时间：
1993
期刊：
影响因子：
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通讯作者：
B. Becker
中科院分区：
文献类型：
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作者：
W. Becker;B. Becker
本研究的目的是评估深层，主要是3壁骨内缺损的愈合潜力，这些缺损采用皮瓣清创和膨胀聚四氟乙烯（ePTFE）膜治疗，并延长随访时间。所有治疗的缺损都在下颌弓。32例患者平均3年5个月接受治疗和复查。其中24例患者在第二次检查时进行了重新进入程序。其中16例患者在平均4年3个月时进行了第三次检查。评估患者探探深度（PD）、临床附着水平（CAL）、退缩、牙冠吸收变化和缺损骨填充的变化。相关样本的配对t检验用于检验检验之间的差异。在检查1和2之间，有统计学意义的口袋深度减少（3.8 mm），临床附着水平增加（4.2 mm），衰退增加（-1.2 mm）。24例行再入牙手术的患者，缺损填充平均为4.3 mm (P < 0.0001)，牙冠吸收平均为0.33 mm （P < 0.0001）。检查3次的16例患者PD持续下降，CAL增加，第二次检查记录衰退。这些变化在第三次检查中具有统计学意义。本研究结果表明，采用清创和ePTFE屏障膜治疗深部3壁骨内缺损，PD显著降低，CAL增加，萎缩，嵴吸收减少，骨填充增加。这些收益可以在较长的时间间隔内保持，并且被认为是可预测的。牙周病杂志1993;64:1138 - 1144。
The purpose of this study was to evaluate the healing potential of deep, primarily 3wall intrabony defects which were treated by flap debridement and expanded polytetrafluoroethylene (ePTFE) membranes and followed for extended time periods. All of the treated defects were in the mandibular arch. Thirty-two patients were treated and reexamined at an average of 3 years 5 months. Twenty-four of these patients had re-entry procedures at the second examination. Sixteen of these patients were examined a third time at an average of 4 years 3 months. The patients were evaluated for changes in probing depth (PD), clinical attachment level (CAL), recession, changes in crestal resorption, and defect bone fill. The paired t-test for related samples was used to test for differences between examinations. Between Exams 1 and 2 there was a statistically significant reduction of pocket depth (3.8 mm), gain in clinical attachment level (4.2 mm), and an increase in recession (-1.2 mm). For the 24 patients who had re-entry procedures there was an average defect fill of 4.3 mm (P < 0.0001) and 0.33 mm of crestal resorption (P < 0.0001). The 16 patients who were examined 3 times sustained decreases in PD, gains in CAL, and recession recorded at the second examination. These changes were statistically significant at Exam 3. The results of this study demonstrate that deep, 3-wall intrabony defects treated by debridement and ePTFE barrier membranes will have significant decreases in PD, gains in CAL, recession, decreases in crestal resorption, and gains in bone fill. These gains can be maintained over extended time intervals and are considered to be predictable. J Periodontol 1993; 64:1138-1144.