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  • 期刊

Comparison between Free Gingival Graft and Subepithelial Connective Tissue Graft for Increasing Keratinized Mucosa around Dental Implants

以游離牙齦移植與皮下結締組織移植增加植體周圍角化黏膜之比較

摘要


成功的植體除了周圍必須要有足夠的齒槽骨厚度以避免植體周圍黏膜萎縮外,軟組織本身的豐隆度及角化程度也是重要的條件之一。本篇研究主要目的在於比較利用游離牙齦移植(FGG)與皮下結締組織移植(SCTG)方式,增加植體周圍的角化黏膜寬度之差異。本研究共計有13位患者,27支植體周圍角化黏膜寬度小於2毫米處,分別接受游離牙齦移植(n=17)與皮下結締組織移植(n=10)手術,以增加角化黏膜,並以術前(T0)、術後(T1)及贗復完成(T2)的角化黏膜寬度進行比較分析。研究結果顯示,以游離牙齦移植的手術區,平均角化黏膜寬度手術前(T0)為0.38 ± 0.6毫米,手術後(T1)為5.09 ± 1.95毫米,贗復完成(T2)為4.88 ± 2.06毫米。以皮下結締組織移植的手術區,手術前(T0)為1.3 ± 0.35毫米,手術後(T1)為5.3 ± 1.27毫米,贗復完成(T2)為3.5 ± 1.03毫米。結論是不論以游離牙齦移植,或皮下結締組織移植,皆可有效增加植體周圍角化黏膜寬度。但游離牙齦移植比皮下結締組織移植所增加的植體周圍角化黏膜寬度,較具有統計學上的顯著差異(p=0.001)。

並列摘要


Peri-implant health should consist of adequate bone thickness, and a band of keratinized mucosa of minimal width and thickness to avoid recession of peri-implant mucosa. The purpose of this study is to compare free gingival graft (FGG) and subepithelial connective tissue graft (SCTG) to increase keratinized mucosa around dental implants. 13 patients with 27 peri-implant sites that exhibit a band of keratinized tissue of less than 2 mm received either free gingival graft (n=17) or subepithelial connective tissue graft (n=10) to increase peri-implant keratinized mucosa. The results showed that the mean width of keratinized mucosa for sites received FGG was presurgery (T0=0.38 ± 0.6 mm), postsurgery (T1=5.09 ± 1.95 mm), final prosthesis (T2=4.88 ± 2.06 mm), and sites received SCTG was presurgery (T0=1.3 ± 0.35 mm), postsurgery (T1=5.3 ± 1.27 mm), final prosthesis (T2=3.5 ± 1.03 mm). In conclusion, FGG showed better outcome than SCTG when attempting to increase peri-implant keratinized mucosa for maintenance of peri-implant mucosal health.

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