Melatonin in Posterior Mandible Extraction Socket
Effect of Local Melatonin Gel Versus Placebo Gel Application on Bone Regeneration in Mandibular Posterior Teeth Extraction Sockets With Radiographic and Histopathological Evaluation: A Randomized Clinical Trial
This study will be conducted at the Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Cairo University. It will include patients aged 18-30 years presenting with non-restorable mandibular molars indicated for extraction and delayed implant placement.
Eligible patients will be randomly allocated into two equal groups:
- Group I (Intervention group): Extraction sockets will be filled with locally applied melatonin gel.
- Group II (Control group): Extraction sockets will be filled with placebo gel. All patients will undergo atraumatic tooth extraction under local anesthesia, followed by socket curettage, saline irrigation, application of the allocated gel, collagen membrane coverage, and primary wound closure.
Postoperative care will include standardized medications and oral hygiene instructions. Patients will be followed up clinically and radiographically. CBCT will be used to assess the primary outcome, which is the dimensional change in vertical alveolar bone height (ΔH). At 12 weeks, core biopsy specimens will be obtained for histopathological assessment of bone quality, including newly formed bone, bone maturation, trabecular architecture, and osteoblastic activity.
Sample size: The total sample size will be determined based on the primary outcome (ΔH), using an appropriate statistical power calculation, with equal allocation between the two groups. The final number of participants will be specified according to the statistician's sample size calculation.
調査の概要
研究の種類
入学 (推定)
段階
- フェーズ2
参加基準
適格基準
就学可能な年齢
健康ボランティアの受け入れ
受講資格のある性別
説明
Inclusion Criteria:
- Patients aged 18-30 years
- Presence of non-restorable mandibular molars indicated for extraction
- Patients with good general health
- Adequate oral hygiene
- Patients willing to undergo implant placement after 4 months
- Patients who provide informed consent
Exclusion Criteria:
- Patients with systemic diseases affecting bone healing (e.g., uncontrolled diabetes, osteoporosis)
- Patients receiving medications affecting bone metabolism (e.g., corticosteroids, bisphosphonates)
- Heavy smokers
- Presence of acute infection or pathological lesions at the extraction site
- Pregnant or lactating females
研究計画
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：トリプル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
|
アクティブコンパレータ：プラセボ群
|
Eligible patients will undergo atraumatic extraction of non-restorable mandibular molars under local anesthesia, followed by socket curettage and irrigation with sterile 0.9% saline. The extraction socket will be filled with locally applied placebo gel. A collagen membrane will then be adapted to cover the socket, followed by primary wound closure using interrupted sutures. All participants will receive standardized postoperative medications and oral hygiene instructions. Clinical follow-up will be conducted at 3 days and 1 week postoperatively. At 12 weeks, CBCT examination will be performed to assess changes in vertical alveolar bone height (ΔH), followed by core biopsy for histopathological evaluation of bone quality. |
|
実験的：melatonin group
|
Eligible patients will undergo atraumatic extraction of non-restorable mandibular molars under local anesthesia, followed by socket curettage and irrigation with sterile 0.9% saline. The extraction socket will be filled with locally applied melatonin gel. A collagen membrane will then be adapted to cover the socket, followed by primary wound closure using interrupted sutures. All participants will receive standardized postoperative medications and oral hygiene instructions. Clinical follow-up will be conducted at 3 days and 1 week postoperatively. At 12 weeks, CBCT examination will be performed to assess changes in vertical alveolar bone height (ΔH), followed by core biopsy for histopathological evaluation of bone qualit |
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 |
|---|---|---|
|
the dimensional change in vertical alveolar bone height
時間枠：12 weeks
|
radiographically by cone beam C.T |
12 weeks
|
協力者と研究者
スポンサー
研究記録日
主要日程の研究
研究開始 (推定)
一次修了 (推定)
研究の完了 (推定)
試験登録日
最初に提出
QC基準を満たした最初の提出物
最初の投稿 (実際)
学習記録の更新
投稿された最後の更新 (実際)
QC基準を満たした最後の更新が送信されました
最終確認日
詳しくは
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