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Efficacy of PRF and Xenograft in Treating Mandibular Molar Furcation Involvements

2026年8月12日 更新者:Thanh Si Ho、University of Medicine and Pharmacy at Ho Chi Minh City

Efficacy of Platelet-Rich Fibrin Combined With Xenograft in the Treatment of Mandibular Molar Furcation Involvements

The purpose of this randomized controlled clinical trial is to compare the effectiveness of advanced platelet-rich fibrin (A-PRF+) combined with xenograft versus a collagen membrane combined with xenograft in the treatment of degree II furcation involvements in mandibular first molars. Adult patients with periodontitis will randomly receive either the A-PRF+ treatment or the collagen membrane treatment during periodontal flap surgery. The study will evaluate clinical periodontal healing, bone regeneration using 3D imaging (CBCT), patient comfort (pain levels and satisfaction), and changes in the TWEAK biomarker in gingival crevicular fluid over a 6-month period.

調査の概要

詳細な説明

Furcation involvements in molars pose a significant challenge in periodontal therapy. This study aims to evaluate a regenerative approach using advanced platelet-rich fibrin (A-PRF+) to enhance clinical and radiographic outcomes. The study includes adult patients with periodontitis who have a degree II furcation involvement (Hamp 1975) on a mandibular molar, with a probing pocket depth of ≥ 5mm after initial non-surgical therapy.

Eligible patients will be randomly allocated to one of two surgical interventions:

Test Group: Open flap debridement followed by the application of A-PRF+ mixed with a xenograft (Cerabone), covered by an A-PRF+ membrane.

Control Group: Open flap debridement followed by the application of a xenograft (Cerabone) covered by a resorbable collagen membrane (Guided Tissue Regeneration).

Clinical parameters including Plaque Index (PlI), Gingival Index (GI), Probing Pocket Depth (PPD), Gingival Recession (GR), Vertical Clinical Attachment Level (VCAL), and Horizontal Clinical Attachment Level (HCAL) will be recorded at baseline and 6 months post-surgery using customized acrylic stents.

Radiological assessments using Cone Beam Computed Tomography (CBCT) will measure furcation volume, bone fill, and new bone gray level at baseline and 6 months. Patient-reported outcomes, including pain perception (VAS), painkiller consumption, and post-operative satisfaction (Likert scale), will be monitored during the first week. Additionally, Gingival Crevicular Fluid (GCF) samples will be collected to analyze the concentration of the TWEAK biomarker via ELISA at baseline, 1 month, and 3 months post-surgery.

研究の種類

介入

入学 (推定)

22

段階

  • 適用できない

連絡先と場所

このセクションには、調査を実施する担当者の連絡先の詳細と、この調査が実施されている場所に関する情報が記載されています。

研究連絡先

研究場所

    • Ho Chi Minh City (HCMC)
      • Ho Chi Minh City、Ho Chi Minh City (HCMC)、ベトナム、700000
        • 募集
        • Faculty of Dentistry, University of Medicine and Pharmacy at Ho Chi Minh City
        • コンタクト:

参加基準

研究者は、適格基準と呼ばれる特定の説明に適合する人を探します。これらの基準のいくつかの例は、人の一般的な健康状態または以前の治療です。

適格基準

就学可能な年齢

  • 大人
  • 高齢者

健康ボランティアの受け入れ

いいえ

説明

Inclusion Criteria:

  • Patients over 18 years old
  • Patients diagnosed with periodontitis who have completed non-surgical treatment: scaling and root planing
  • Patients attending a follow-up visit at least 5 weeks after non-surgical treatment, demonstrating compliance and good oral hygiene cooperation
  • Presence of a mandibular molar with a Degree II furcation involvement according to Hamp (1975), presenting a residual periodontal pocket at the buccal site (PPD ≥ 5mm) after non-surgical treatment, and showing radiolucency in the furcation area on CBCT imaging
  • Plaque Index (PlI) < 1 following non-surgical treatment
  • Width of keratinized gingiva ≥ 2mm
  • Teeth with furcation defects where gingival recession does not extend apically beyond the buccal furcation fornix (no supragingival furcation exposure)
  • Teeth without occlusal trauma, pulpal or periapical pathologies, and no combined periodontic-endodontic lesions
  • Degree II furcation involvement according to Hamp (1975) and Subclass A or B according to Tarnow and Fletcher (1984)
  • The defect is located apical to the interproximal alveolar bone crest on CBCT imaging

Exclusion Criteria:

  • Patients with systemic diseases affecting periodontal treatment outcomes, such as: diabetes mellitus, heart disease requiring anticoagulant therapy, blood disorders, immunodeficiency, etc
  • Pregnant or lactating patients
  • Patients who have used antibiotics or any other medications affecting periodontal treatment outcomes within the last 6 months
  • Patients who smoke tobacco.
  • Patients who have used aspirin or medications affecting blood coagulation within 2 weeks prior to the blood collection for PRF preparation
  • Patients with a history of allergy to local anesthetics
  • Defects associated with grade II tooth mobility that has not been splinted, or grade III tooth mobility according to Miller (2014)

研究計画

このセクションでは、研究がどのように設計され、研究が何を測定しているかなど、研究計画の詳細を提供します。

研究はどのように設計されていますか?

デザインの詳細

  • 主な目的:処理
  • 割り当て:ランダム化
  • 介入モデル:並列代入
  • マスキング:ダブル

武器と介入

参加者グループ / アーム
介入・治療
実験的:A-PRF+ and Xenograft
Open flap debridement followed by the application of A-PRF+ mixed with xenograft (Cerabone), covered by an A-PRF+ membrane
Open flap debridement surgery. The furcation defect is filled with a mixture of A-PRF+ fragments and bovine xenograft (Cerabone), and then covered with an A-PRF+ membrane before suturing
他の名前:
  • セラボーン
  • Advanced Platelet-Rich Fibrin plus
  • A-PRF+
アクティブコンパレータ:Collagen Membrane and Xenograft
Open flap debridement followed by the application of xenograft (Cerabone) covered by a resorbable collagen membrane
Open flap debridement surgery. The furcation defect is filled with bovine xenograft (Cerabone) and covered with a resorbable collagen membrane before suturing
他の名前:
  • セラボーン
  • コラーゲン膜
  • Guided Tissue Regeneration
  • Bio-Gide

この研究は何を測定していますか?

主要な結果の測定

結果測定
メジャーの説明
時間枠
Horizontal Clinical Attachment Level (HCAL)
時間枠:Baseline and 6 months post-surgery
HCAL is evaluated using a Nabers probe and a customized acrylic stent to measure the horizontal penetration from the buccal furcation entrance to the deepest point of the defect
Baseline and 6 months post-surgery
Probing Pocket Depth (PPD)
時間枠:Baseline and 6 months post-surgery
PPD is measured using a UNC-15 periodontal probe and a customized acrylic stent to ensure measurement reproducibility. The measurement is recorded at the buccal aspect of the involved tooth
Baseline and 6 months post-surgery

二次結果の測定

結果測定
メジャーの説明
時間枠
Plaque Index (PlI)
時間枠:Baseline, 3 months, and 6 months post-surgery
Assessed at 4 sites per tooth using the Loe and Silness (1963) criteria
Baseline, 3 months, and 6 months post-surgery
Gingival Index (GI)
時間枠:Baseline and 6 months post-surgery
Assessed using the Loe and Silness (1963) criteria to evaluate gingival inflammation
Baseline and 6 months post-surgery
Vertical Clinical Attachment Level (VCAL)
時間枠:Baseline and 6 months post-surgery
Measured using a UNC-15 periodontal probe and a customized acrylic stent
Baseline and 6 months post-surgery
Gingival Recession (GR)
時間枠:Baseline, 3 months, and 6 months post-surgery
Evaluated using a 3D intraoral scanner (3Shape TRIOS) and a customized acrylic stent
Baseline, 3 months, and 6 months post-surgery
Radiographic Vertical Bone Level (VBL)
時間枠:Baseline and 6 months post-surgery
Measured on Cone Beam Computed Tomography (CBCT) images from the furcation fornix to the base of the defect
Baseline and 6 months post-surgery
Furcation Defect Volume
時間枠:Baseline and 6 months post-surgery
Evaluated using CBCT images and 3D segmentation software (ITK-SNAP)
Baseline and 6 months post-surgery
New Bone Gray Level
時間枠:Baseline and 6 months post-surgery
Evaluated using CBCT and ImageJ software to assess the density of newly formed bone
Baseline and 6 months post-surgery
TWEAK Biomarker Concentration
時間枠:Baseline, 1 month, and 3 months post-surgery
Measured in Gingival Crevicular Fluid (GCF) using Enzyme-Linked Immunosorbent Assay (ELISA)
Baseline, 1 month, and 3 months post-surgery
Post-operative Pain Perception
時間枠:12 hours, 1 day, and 3 days post-surgery
Assessed using a 10-cm Visual Analog Scale (VAS) where 0 indicates "no pain" and 10 indicates "worst imaginable pain"
12 hours, 1 day, and 3 days post-surgery
Post-operative Painkiller Consumption
時間枠:Up to 3 days post-surgery
Recorded as the total number of analgesic tablets consumed by the patient
Up to 3 days post-surgery
Post-operative Patient Satisfaction
時間枠:3 days and 7 days post-surgery
Evaluated using a 5-point Likert scale (from 1 = very dissatisfied to 5 = very satisfied) regarding post-operative swelling and chewing ability
3 days and 7 days post-surgery

協力者と研究者

ここでは、この調査に関係する人々や組織を見つけることができます。

研究記録日

これらの日付は、ClinicalTrials.gov への研究記録と要約結果の提出の進捗状況を追跡します。研究記録と報告された結果は、国立医学図書館 (NLM) によって審査され、公開 Web サイトに掲載される前に、特定の品質管理基準を満たしていることが確認されます。

主要日程の研究

研究開始 (実際)

2026年6月25日

一次修了 (推定)

2027年6月1日

研究の完了 (推定)

2027年6月30日

試験登録日

最初に提出

2026年8月9日

QC基準を満たした最初の提出物

2026年8月9日

最初の投稿 (実際)

2026年8月13日

学習記録の更新

投稿された最後の更新 (実際)

2026年8月14日

QC基準を満たした最後の更新が送信されました

2026年8月12日

最終確認日

2026年8月1日

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