日本語AIでPubMedを検索
抜歯後2ヶ月の自然治癒と2つの隆起部保存法の軟組織の厚さ、輪郭の変化、軟組織の取り扱いを比較した探索的無作為化比較試験
Explorative randomized controlled study comparing soft tissue thickness, contour changes, and soft tissue handling of two ridge preservation techniques and spontaneous healing two months after tooth extraction.
PMID: 32128884 DOI: 10.1111/clr.13594.
抄録
目的:
抜歯後2ヶ月後の軟部組織の厚さ、輪郭の変化、軟部組織の取り扱いについて、2つの隆起保存術と自然治癒を比較する。
OBJECTIVES: To compare two ridge preservation techniques and spontaneous healing in terms of soft tissue thickness, contour changes, and soft tissue handling two months after tooth extraction.
方法:
審美部の一本歯抜歯後に頬骨プレートの脱脂が50%までの患者36名を対象とした。これらの患者は無作為に3つの処置のうちの1つを受けるように割り付けられた:10%コラーゲンを含む脱蛋白化ウシ骨ミネラル(DBBM-C)をコラーゲンマトリックスで覆ったもの(DBBM-C/CM)、DBBM-C単独、自然治癒(SH)のいずれかを受けた。2ヶ月後に軟部組織治癒の状態を評価し、部位中心の粘膜の厚さを測定した。その後、インプラントを埋入し、露出したインプラント表面を覆うためのガイド付き骨再生(GBR)の必要性を評価した。
METHODS: Thirty-six patients were included with buccal bone plate dehiscences of up to 50% after single-tooth extraction in the esthetic zone. They were randomly assigned to receive one of three procedures: a deproteinized bovine bone mineral with 10% collagen (DBBM-C) covered with a collagen matrix (DBBM-C/CM), DBBM-C alone, or spontaneous healing (SH). Two months later, the status of soft tissue healing was assessed, and the thickness of the mucosa was measured at the center of the site. Thereafter, implants were placed and the need for further guided bone regeneration (GBR) to cover exposed implant surfaces was assessed.
結果:
インプラント埋入当日に36名の患者を評価した。軟部組織の浸潤は、DBBM-C/CM群41.7%(n=12)、DBBM-C群53.8%(n=13)、SH群90.9%(n=11)に認められた。測定された粘膜の厚さの中央値は、DBBM-C/CM群で3.0mm、DBBM-C群で2.1mm、SH群で1.5mmであった。DBBM-C/CM群では66.7%(n=12)、53.8%(n=13)、SH群では90.9%(n=11)の部位でGBRの追加が必要であった。
RESULTS: Thirty-six patients were evaluated at the day of implant placement. An invagination of the soft tissues was recorded in 41.7% (n = 12), 53.8% (n = 13), and 90.9% (n = 11) of the sites in groups DBBM-C/CM, DBBM-C, and SH, respectively. The median thickness of the mucosa measured was 3.0 mm in group DBBM-C/CM, 2.1 mm in group DBBM-C, and 1.5 mm in group SH. Additional GBR was necessary in 66.7% (n = 12), 53.8% (n = 13), and 90.9% (n = 11) of the sites in groups DBBM-C/CM, DBBM-C, and SH, respectively.
結論:
今回の探索的研究では、歯槽骨稜保存術を受けた群では、治癒後8週間で自然治癒した部位と比較して、軟部組織の体積と厚さが増加するとともに、侵襲が少なく、軟部組織の状態がより良好であることがわずかに示された。
CONCLUSIONS: The present explorative study revealed slight tendencies for more favorable soft tissue conditions with less invaginations as well as increased soft tissue volume and thickness in groups having received an alveolar ridge preservation procedure compared to spontaneously healed sites at 8 weeks of healing.
© 2020 John Wiley & Sons A/S. Published by John Wiley & Sons Ltd.