- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07648979
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.
연구 개요
상태
정황
상세 설명
연구 유형
등록 (추정된)
단계
- 해당 없음
연락처 및 위치
연구 연락처
- 이름: Nariman Osama, BDS
- 전화번호: 01010381531
- 이메일: Nareman.osama@dentistry.cu.edu.eg
연구 장소
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Cairo, 이집트
- Faculty of dentistry
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참여기준
자격 기준
공부할 수 있는 나이
- 어린이
건강한 자원 봉사자를 받아들입니다
설명
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.
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 치료
- 할당: 무작위
- 중재 모델: 병렬 할당
- 마스킹: 더블
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
|---|---|
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실험적: 3D printed resin crowns
Children will receive indirect restorations using 3D-printed resin crowns on primary molars affected by reversible pulpitis
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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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활성 비교기: 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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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Gingival index
기간: 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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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
|---|---|---|
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Plaque accumulation
기간: baseline, 3 months, 6 months, 9 months, 12 months
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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
기간: 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
기간: 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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공동 작업자 및 조사자
스폰서
수사관
- 연구 의자: Sherine Badr, PHD, Cairo University
- 수석 연구원: Nariman Osama, BDS, Cairo University
- 연구 책임자: Hanna Abdel Moneim, PHD, Cairo University
간행물 및 유용한 링크
연구 기록 날짜
연구 주요 날짜
연구 시작 (추정된)
기본 완료 (추정된)
연구 완료 (추정된)
연구 등록 날짜
최초 제출
QC 기준을 충족하는 최초 제출
처음 게시됨 (실제)
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
QC 기준을 충족하는 마지막 업데이트 제출
마지막으로 확인됨
추가 정보
이 연구와 관련된 용어
기타 연구 ID 번호
- FDCU-2026-01
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
IPD 계획 설명
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
미국에서 제조되어 미국에서 수출되는 제품
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