- ICH GCP
- 미국 임상 시험 레지스트리
- 임상시험 NCT03558282
Facial Mucosal Level Determinants for Single Immediately Placed Implants Evaluated by Novel Ultrasonography
2019년 2월 12일 업데이트: Hsun-Liang Chan, University of Michigan
A single center, prospective clinical trial is planned to investigate the effect of different emergence angles of implant restorations on peri-implant soft tissue recession and implant marginal bone loss.
The primary outcome is to systematically evaluate the association of implant-, peri-implant tissue-, and restoration-related factors with facial mucosal level changes.
연구 개요
상세 설명
Facial mucosal recession still poses a threat to long-term success of implant therapy especially esthetic appearance.
To study the timing and extent of mucosal recession and the associated risks, a prospective study is strategically important.
This will allow the collection of valuable longitudinal data about facial mucosal level changes, peri-implant tissue dimensions, and implant/restoration parameters that are considered critical for determining the mucosal level.
Forty adult patients who meet the inclusion criteria will be recruited to participate in this study.
Patients that had an implant crown placed a minimum time frame of 6 months and have existing relevant clinical data (mucosal level and thickness, radiographs, cone beam computed tomogram (CBCT) scans, study casts and intra-oral photographs) at baseline and if possible at other follow-up visits will be invited to participate in this study.
Patients that volunteer to be screened will not be examined for study eligibility until an informed consent has been obtained.
Patient information will be protected according to HIPAA.
The enrolled subjects will have research measurements taken, an ultrasound scan, intraoral photos and an impression of the arch including the study implant.
One dental cone beam computed tomography (CBCT) scan will be taken to evaluate the implant position in relation to the alveolar ridge and to evaluate relative bone quality.
The primary outcome will analyze the changes in the facial mucosal level, by superimposing the digital images of the stone models that were taken previously.
On ultrasound images, peri-implant tissue parameters, implant positions, restoration contour, etc., will be measured and recorded.
The primary outcome will then be equated with clinical and radiographic readings, and ultrasound parameters, along with timing of provisionalization or final restoration, in regression analysis to identify factors related to facial mucosal recession.
연구 유형
관찰
등록 (실제)
28
연락처 및 위치
이 섹션에서는 연구를 수행하는 사람들의 연락처 정보와 이 연구가 수행되는 장소에 대한 정보를 제공합니다.
연구 장소
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Michigan
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Ann Arbor, Michigan, 미국, 48109
- University of Michigan School of Dentistry
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참여기준
연구원은 적격성 기준이라는 특정 설명에 맞는 사람을 찾습니다. 이러한 기준의 몇 가지 예는 개인의 일반적인 건강 상태 또는 이전 치료입니다.
자격 기준
공부할 수 있는 나이
18년 이상 (성인, 고령자)
건강한 자원 봉사자를 받아들입니다
아니
연구 대상 성별
모두
샘플링 방법
비확률 샘플
연구 인구
Subjects who had a single implant restoration in the maxillary anterior position with sufficient baseline data will be recruited for this study.
설명
Inclusion Criteria:
- Subjects 18 years old or older
- One immediate maxillary implant placement with 2 adjacent neighboring teeth
- Available pre-surgery model
- Radiographic documentation (either peri-apical x-rays or CBCT)
- Have final restoration for at least 6 months.
Exclusion Criteria:
- Are under 18 years of age.
- Are unwilling or unable to read and sign this informed consent document.
- Have any medical conditions that we believe may influence the outcome of the study.
공부 계획
이 섹션에서는 연구 설계 방법과 연구가 측정하는 내용을 포함하여 연구 계획에 대한 세부 정보를 제공합니다.
연구는 어떻게 설계됩니까?
디자인 세부사항
- 관찰 모델: 보병대
- 시간 관점: 단면
코호트 및 개입
그룹/코호트 |
개입 / 치료 |
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Maxillary Anterior Implant
Subjects who have a single implant restoration in the maxillary anterior position with sufficient baseline data.
Recession observation and crown contour observation of the implant will be completed.
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Soft tissue measurements
Ultrasound measures of implant crown contour.
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연구는 무엇을 측정합니까?
주요 결과 측정
결과 측정 |
측정값 설명 |
기간 |
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Mucosal recession on the tested implant
기간: At least 12 months following implant placement.
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It is a one-time measurement (this study is only one-time visit) within the study timeframe, measured from a reference, adjacent tooth landmark, to the mucosal margin of the implant.
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At least 12 months following implant placement.
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2차 결과 측정
결과 측정 |
측정값 설명 |
기간 |
---|---|---|
Crown contour of the tested implant
기간: At least 12 months following implant placement.
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It is a one-time measurement (this study is only one-time visit) within the study timeframe.
It is measured on ultrasound images.
It is the angle between the tangent line of the implant crown and implant fixture.
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At least 12 months following implant placement.
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공동 작업자 및 조사자
여기에서 이 연구와 관련된 사람과 조직을 찾을 수 있습니다.
수사관
- 수석 연구원: Hsun-Liang Chan, DDS, MS, Department of Periodontics and Oral Medicine University of Michigan School of Dentistry
간행물 및 유용한 링크
연구에 대한 정보 입력을 담당하는 사람이 자발적으로 이러한 간행물을 제공합니다. 이것은 연구와 관련된 모든 것에 관한 것일 수 있습니다.
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연구 기록 날짜
이 날짜는 ClinicalTrials.gov에 대한 연구 기록 및 요약 결과 제출의 진행 상황을 추적합니다. 연구 기록 및 보고된 결과는 공개 웹사이트에 게시되기 전에 특정 품질 관리 기준을 충족하는지 확인하기 위해 국립 의학 도서관(NLM)에서 검토합니다.
연구 주요 날짜
연구 시작 (실제)
2018년 8월 7일
기본 완료 (실제)
2019년 1월 22일
연구 완료 (실제)
2019년 1월 22일
연구 등록 날짜
최초 제출
2018년 5월 18일
QC 기준을 충족하는 최초 제출
2018년 6월 13일
처음 게시됨 (실제)
2018년 6월 15일
연구 기록 업데이트
마지막 업데이트 게시됨 (실제)
2019년 2월 15일
QC 기준을 충족하는 마지막 업데이트 제출
2019년 2월 12일
마지막으로 확인됨
2019년 2월 1일
추가 정보
이 정보는 변경 없이 clinicaltrials.gov 웹사이트에서 직접 가져온 것입니다. 귀하의 연구 세부 정보를 변경, 제거 또는 업데이트하도록 요청하는 경우 register@clinicaltrials.gov. 문의하십시오. 변경 사항이 clinicaltrials.gov에 구현되는 즉시 저희 웹사이트에도 자동으로 업데이트됩니다. .