- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT07580534
Clinical Evaluation of Conventional and 3D-printed Implant-supported Overdentures Retained With New Attachment Systems (IODs)
연구 개요
상세 설명
연구 유형
등록 (추정된)
단계
- 해당 없음
연락처 및 위치
연구 장소
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Asyut, 이집트
- Faculty of Dental Medicine, Al-Azhar University, (Assiut Branch)
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참여기준
자격 기준
공부할 수 있는 나이
- 어린이
- 성인
- 고령자
건강한 자원 봉사자를 받아들입니다
설명
Inclusion Criteria:
- Completely edentulous patients
- Non-smokers
- Patients free from intra-oral diseases that may affect implant-overdenture prognosis
- Patients free from systemic conditions that may influence bone resorption or implant success
- Able and willing to comply with study visits and follow-up schedule
Exclusion Criteria:
- Smokers or tobacco users
- Presence of active oral lesions, infections, or mucosal pathology
- Systemic diseases affecting bone metabolism (e.g., uncontrolled diabetes, osteoporosis requiring bisphosphonates)
- History of head and neck radiation
- Severe parafunctional habits (e.g., bruxism)
- Inability to attend follow-up appointments or provide informed consent
공부 계획
연구는 어떻게 설계됩니까?
디자인 세부사항
- 주 목적: 건강 서비스 연구
- 할당: 무작위
- 중재 모델: 크로스오버 할당
- 마스킹: 없음(오픈 라벨)
무기와 개입
참가자 그룹 / 팔 |
개입 / 치료 |
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실험적: Arm 1: Denture A with Locator ST Participants receive Denture A retained by Locator ST attachments.
Participants receive Denture A retained by Locator ST attachments.
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Participants receive Denture A, a conventional mandibular implant overdenture, retained by two Locator ST attachments placed in the interforaminal region.
Outcomes include OHIP-19, VAS satisfaction, retention force, attachment wear, periodontal parameters, and denture tooth wear resistance.
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실험적: Denture A with Locator EMI
Participants receive Denture A retained by two Locator EMI attachments.
Same outcome measures as above, allowing comparison of attachment type influence on patient-reported and clinical outcomes.
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Participants receive Denture A, a conventional mandibular implant overdenture, retained by two Locator ST attachments placed in the interforaminal region.
Outcomes include OHIP-19, VAS satisfaction, retention force, attachment wear, periodontal parameters, and denture tooth wear resistance.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Retention Force of Implant Overdentures (IODs)
기간: Outcome measures were assessed at four clearly defined time points: 1. Baseline (Immediately after overdenture pick up) 2. 3 month follow up 3. 6 month follow up 4. 9 month follow up These time points correspond to the evaluation of implant overdentures
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Retention force measured using a digital force gauge to quantify the dislodgement force required to remove the overdenture from the implants.
Measurements will be reported in Newtons (N).
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Outcome measures were assessed at four clearly defined time points: 1. Baseline (Immediately after overdenture pick up) 2. 3 month follow up 3. 6 month follow up 4. 9 month follow up These time points correspond to the evaluation of implant overdentures
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Denture Wear of Implant Overdentures (IODs)
기간: Wear was evaluated relative to the baseline measurement taken immediately after pick-up, with follow-up assessment 9-month per denture type: 1. 3 month follow up 2. 6 month follow up 3. 9 month follow up
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Denture wear assessed by measuring surface loss on occlusal surface using digital analysis.
Wear depth recorded in millimeters (mm) at each evaluation point.
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Wear was evaluated relative to the baseline measurement taken immediately after pick-up, with follow-up assessment 9-month per denture type: 1. 3 month follow up 2. 6 month follow up 3. 9 month follow up
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Peri-implant Soft Tissue Health (Modified Plaque Index and Modified Bleeding Index Scores)
기간: Assessments performed over an 18-month total follow-up period, at the following intervals: 1 - Immediately after pick-up (baseline) 2 - 3 months 3 - 6 months 4 - 9 months 5 - 12 months 6 - 15 months 7 - 18 months
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Peri-implant soft tissue health assessed using the Modified Plaque Index (mPI) and Modified Bleeding Index (mBI). Both indices are ordinal clinical scales scored according to standard peri-implant evaluation criteria: mPI range: 0-3 0 = no plaque 3 = abundant plaque mBI range: 0-3 0 = no bleeding 3 = profuse bleeding Interpretation: Higher scores indicate worse peri-implant soft tissue health. Unit of Measure: Ordinal index scores (mPI, mBI) |
Assessments performed over an 18-month total follow-up period, at the following intervals: 1 - Immediately after pick-up (baseline) 2 - 3 months 3 - 6 months 4 - 9 months 5 - 12 months 6 - 15 months 7 - 18 months
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Crestal bone level changes
기간: Radiographic measurements performed over an 18-month total follow-up period, at the following intervals: 1 - Immediately after pick-up (baseline) 2 - 3 months 3 - 6 months 4 - 9 months 5 - 12 months 6 - 15 months 7 - 18 months
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Crestal bone levels measured on standardized periapical radiographs taken with a paralleling technique.
Bone level is defined as the distance from the implant shoulder to the first bone-to-implant contact.
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Radiographic measurements performed over an 18-month total follow-up period, at the following intervals: 1 - Immediately after pick-up (baseline) 2 - 3 months 3 - 6 months 4 - 9 months 5 - 12 months 6 - 15 months 7 - 18 months
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Oral Health-Related Quality of Life (OHIP-19 score)
기간: OHIP-19 scores recorded three times during each 9-month denture phase: 1 -Before pick-up 2 - Immediately after pick-up 3 - At 9 months follow up
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Oral health-related quality of life assessed using the Oral Health Impact Profile-19 (OHIP-19) questionnaire. The OHIP-19 consists of 19 items, each scored on a 5-point ordinal scale from 0 to 4: 0 = never 4 = very often Minimum score: 0 Maximum score: 76 Interpretation: Higher scores indicate worse oral health-related quality of life. |
OHIP-19 scores recorded three times during each 9-month denture phase: 1 -Before pick-up 2 - Immediately after pick-up 3 - At 9 months follow up
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Patient Satisfaction (Visual Analog Scale Score)
기간: VAS satisfaction scores recorded three times during each 9-month denture phase: 1 - Before pick-up 2 - Immediately after pick-up 3 - At 9 months follow up
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Patient satisfaction with the denture and attachment system measured using a 10-point Visual Analog Scale (VAS). Participants rated their satisfaction on a scale from 0 to 10: 0 = completely dissatisfied 10 = completely satisfied |
VAS satisfaction scores recorded three times during each 9-month denture phase: 1 - Before pick-up 2 - Immediately after pick-up 3 - At 9 months follow up
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공동 작업자 및 조사자
연구 기록 날짜
연구 주요 날짜
연구 시작 (실제)
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
키워드
기타 연구 ID 번호
- Al-Azhar University, (Assiut B
개별 참가자 데이터(IPD) 계획
개별 참가자 데이터(IPD)를 공유할 계획입니까?
약물 및 장치 정보, 연구 문서
미국 FDA 규제 의약품 연구
미국 FDA 규제 기기 제품 연구
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