3D-Printed Resin Crowns vs Stainless Steel Crowns in Pulpotomized Primary Molars. (3DRSCVSSSC)
Clinical Evaluation of 3D Printed Resin Based Crowns Versus Stainless Steel Crowns in Pulpotomized Primary Mandibular Molars : A Randomized Controlled Clinical Trial
The goal of this clinical trial is to learn whether 3D-printed resin-based crowns are an effective alternative to stainless steel crowns for restoring pulpotomized primary mandibular molars in children. The main questions it aims to answer are:
Do 3D-printed resin-based crowns provide better gingival health than stainless steel crowns? Are there differences in plaque accumulation, crown retention, and child and parent satisfaction between the two crown types?
Participants will:
Receive either a 3D-printed resin-based crown or a stainless steel crown after pulpotomy.
Attend follow-up visits for clinical evaluation over 12 months.
調査の概要
状態
条件
詳細な説明
研究の種類
入学 (推定)
段階
- 適用できない
連絡先と場所
研究連絡先
- 名前:Nariman Osama, BDS
- 電話番号:01010381531
- メール:Nareman.osama@dentistry.cu.edu.eg
研究場所
-
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Cairo、エジプト
- Faculty of dentistry
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参加基準
適格基準
就学可能な年齢
- 子
健康ボランティアの受け入れ
説明
Inclusion Criteria:
Children aged 4 to 8 years. Cooperative children who are able to accept dental treatment. Teeth diagnosed with reversible pulpitis. Children in good general health with no systemic conditions affecting oral health.
Parents/guardians willing to provide written informed consent and attend follow-up visits.
Exclusion Criteria:
Teeth deemed non-restorable (e.g., gross carious destruction or fractures beyond restoration).
Parents/guardians unwilling to participate in the study or provide informed consent.
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:ダブル
武器と介入
参加者グループ / アーム |
介入・治療 |
|---|---|
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実験的:3D printed resin crowns
Children will receive indirect restorations using 3D-printed resin crowns on primary molars affected by reversible pulpitis
|
1-Select an appropriately sized resin-based prefabricated crown based on the mesio-distal width of the tooth.
2-Perform occlusal reduction of approximately 1.5-2.0
mm following the natural occlusal anatomy.
3-Reduce buccal and lingual cusps, central groove, and marginal ridges to achieve adequate occlusal clearance.
4-Perform proximal reduction using a tapered fissure or diamond bur to eliminate mesial and distal contacts by approximately 1.0 mm.
5-Avoid creating ledges or damaging adjacent teeth during proximal reduction.
6-Slightly reduce buccal and lingual surfaces to eliminate undercuts and facilitate crown seating.
7-Round and smooth all sharp line angles and points of the preparation.
8-In cases with adjacent teeth, perform additional interproximal reduction if required for proper seating.9-Try-in the crown intraorally and seat it using firm pressure from lingual to buccal direction.
10-Check marginal adaptation, ensuring slight subgingival extension (approximately 0.5-1.0
mm).
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アクティブコンパレータ:Stainless steel crowns
Children will receive stainless steel crowns on primary molars affected by reversible pulpitis
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1-Select an appropriately sized stainless steel crown based on the mesiodistal width of the tooth.
2-Perform minimal occlusal reduction (approximately 1.0-1.5 mm) following the anatomical occlusal contour to create suficient space for crown placement.
3-Lightly reduce proximal contacts to allow crown seating, without creating steps or excessive taper.
4-Perform minimal buccal and lingual reduction only if required to eliminate undercuts and facilitate passive seating.
5-Round sharp line angles and smooth rough surfaces to allow proper adaptation.
5-Verify adequate occlusal clearance and passive path of insertion.
6-Try-in the crown and adjustsize if necessary to ensure proper fit.
7-Trim and contour crown margins to achieve optimal gingival adaptation (if needed).
8-Seat the crown firmly using finger pressure to confirm complete seating.
9-Cement the crown with glass ionomer cement and remove excess cement after initial setting.
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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 |
|---|---|---|
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Gingival index
時間枠:baseline, 3 months, 6 months, 9 months, 12 months
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The GI was measured by passing an explorer tip gently within the sulcus mesial, distal, buccal, and lingual surface of each crowned molar. it was scored on a scale of 0 to 3 0= no bleeding
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baseline, 3 months, 6 months, 9 months, 12 months
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二次結果の測定
結果測定 |
メジャーの説明 |
時間枠 |
|---|---|---|
|
Plaque accumulation
時間枠:baseline, 3 months, 6 months, 9 months, 12 months
|
Silness &Löe plaque index 0: no plaque.
1: film at gingival margin.
2: moderate accumulation.
3: abundance of plaque.
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baseline, 3 months, 6 months, 9 months, 12 months
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Child and parent satisfaction
時間枠:Immediately post operative
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Child and parent satisfaction will be assessed using a structured questionnaire based on a Likert scale.
Participants (children and their parents/guardians) will rate their satisfaction with the treatment experience, comfort, aesthetics, and overall acceptance.
Responses will be recorded on a 5-point Likert scale ranging from "very dissatisfied" to "very satisfied."
The scores will be analyzed to compare satisfaction between study groups.
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Immediately post operative
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Crown retention
時間枠:baseline, 3 months, 6 months, 9 months, 12 months
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Using United States Public Health Service (USPHS) criteria Alpha : intact Bravo : chipped or loss of material Charlie : complete loss of crown
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baseline, 3 months, 6 months, 9 months, 12 months
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協力者と研究者
スポンサー
捜査官
- スタディチェア:Sherine Badr, PHD、Cairo University
- 主任研究者:Nariman Osama, BDS、Cairo University
- スタディディレクター:Hanna Abdel Moneim, PHD、Cairo University
出版物と役立つリンク
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
本研究に関する用語
その他の研究ID番号
- FDCU-2026-01
個々の参加者データ (IPD) の計画
個々の参加者データ (IPD) を共有する予定はありますか?
IPD プランの説明
医薬品およびデバイス情報、研究文書
米国FDA規制医薬品の研究
米国FDA規制機器製品の研究
米国で製造され、米国から輸出された製品。
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