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首页> 外文期刊>Journal of Periodontology >Treatment of gingival recessions by combined periodontal regenerative technique, guided tissue regeneration, and subpedicle connective tissue graft. A comparative clinical study.
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Treatment of gingival recessions by combined periodontal regenerative technique, guided tissue regeneration, and subpedicle connective tissue graft. A comparative clinical study.

机译：结合牙周再生技术，引导组织再生和椎弓根结缔组织移植术治疗牙龈退缩。一项比较临床研究。

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BACKGROUND: Many surgical techniques have been shown to be effective in correcting gingival recessions by covering the exposed root with soft tissue; however, the thickness of the gingival tissue over the root surface probably plays an important role in preventing the recurrence of tissue recession. The aim of the present study was to compare the results of a mucogingival bilaminar technique (BT), guided tissue regeneration (GTR), and a combined periodontal regenerative technique (CPRT) in achieving root coverage and increasing the gingival thickness 1 year after surgical treatment. METHODS: In 45 systemically healthy, non-smoking patients aged 33.6 +/- 4.3 years with no periodontal pockets >4 mm, a Miller's Class I or II gingival recession was treated for root coverage: 15 patients underwent BT (connective tissue with partial-thickness double pedicle graft), 15 GTR by a bioabsorbable membrane, and 15 CPRT by a collagen membrane and collagen-incorporated hydroxyapatite. Before and 1 year after surgical treatments, the following clinical parameters were recorded: gingival recession (GR), probing depth (PD), clinical attachment level (CAL), keratinized tissue width (KT), and gingival thickness (GT); the percentage of root coverage was also calculated and the data were statistically analyzed. RESULTS: All 3 techniques yielded significant improvements in terms of GR decrease, CAL and KT gain, and GT increase compared to baseline values. Mean root coverage was 90.0%, 81.01%, and 87.12% in BT, GTR, and CPRT groups, respectively. Complete root coverage was observed in 60%, 40%, and 53.3% of subjects from the BT, GTR, and CPRT groups, respectively. No significant differences were observed among the 3 techniques in GR or CAL improvements; however, BT produced a significantly (P<0.01) greater increase of KT, and BT and CPRT groups showed a significantly (P<0.01) greater increase of GT compared to the GTR group. CONCLUSIONS: BT, GTR, and CPRT successfully treated gingival recession defects, obtaining comparable percentages of root coverage, but BT and CPRT created a thick gingival tissue significantly greater than that achieved with GTR.
机译：背景：已显示出许多外科手术技术可通过用软组织覆盖裸露的牙根来有效纠正牙龈退缩。然而，牙根表面的牙龈组织的厚度可能在防止组织衰退的复发中起重要作用。本研究的目的是比较手术后1年粘膜龈沟技术（BT），引导组织再生（GTR）和联合牙周再生技术（CPRT）在实现牙根覆盖和增加牙龈厚度方面的结果。 。方法：在45名33.6 +/- 4.3岁，无牙周袋> 4 mm的系统健康，非吸烟患者中，对Miller's I或II类牙龈退缩进行了根部覆盖治疗：15例患者进行了BT（结缔组织局部切除术）。厚度的双椎弓根移植物），通过生物可吸收膜的15 GTR和通过胶原膜和掺有胶原的羟基磷灰石的15 CPRT。手术治疗前后，记录以下临床参数：牙龈退缩（GR），探查深度（PD），临床附着水平（CAL），角化组织宽度（KT）和牙龈厚度（GT）;还计算了根覆盖率，并对数据进行了统计分析。结果：与基线值相比，所有3种技术在GR降低，CAL和KT增益以及GT增加方面均取得了显着改善。 BT，GTR和CPRT组的平均根覆盖率分别为90.0％，81.01％和87.12％。在BT，GTR和CPRT组中，分别有60％，40％和53.3％的受试者观察到完全的根覆盖。在GR或CAL改进方面，这3种技术之间没有观察到显着差异。然而，与GTR组相比，BT显着提高了KT（P <0.01），而BT和CPRT组显着提高了GT（P <0.01）。结论：BT，GTR和CPRT成功治疗了牙龈退缩缺损，获得了相当百分比的牙根覆盖率，但BT和CPRT产生的牙龈厚组织明显大于GTR。

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