Facial Mucosal Level Determinants for Single Immediately Placed Implants Evaluated by Novel Ultrasonography
12. Februar 2019 aktualisiert von: 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.
Studienübersicht
Status
Abgeschlossen
Bedingungen
Intervention / Behandlung
Detaillierte Beschreibung
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.
Studientyp
Beobachtungs
Einschreibung (Tatsächlich)
28
Kontakte und Standorte
Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.
Studienorte
-
-
Michigan
-
Ann Arbor, Michigan, Vereinigte Staaten, 48109
- University of Michigan School of Dentistry
-
-
Teilnahmekriterien
Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.
Zulassungskriterien
Studienberechtigtes Alter
18 Jahre und älter (Erwachsene, Älterer Erwachsener)
Akzeptiert gesunde Freiwillige
Nein
Studienberechtigte Geschlechter
Alle
Probenahmeverfahren
Nicht-Wahrscheinlichkeitsprobe
Studienpopulation
Subjects who had a single implant restoration in the maxillary anterior position with sufficient baseline data will be recruited for this study.
Beschreibung
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.
Studienplan
Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.
Wie ist die Studie aufgebaut?
Designdetails
- Beobachtungsmodelle: Kohorte
- Zeitperspektiven: Querschnitt
Kohorten und Interventionen
Gruppe / Kohorte |
Intervention / Behandlung |
|---|---|
|
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.
|
Soft tissue measurements
Ultrasound measures of implant crown contour.
|
Was misst die Studie?
Primäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Mucosal recession on the tested implant
Zeitfenster: At least 12 months following implant placement.
|
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.
|
At least 12 months following implant placement.
|
Sekundäre Ergebnismessungen
Ergebnis Maßnahme |
Maßnahmenbeschreibung |
Zeitfenster |
|---|---|---|
|
Crown contour of the tested implant
Zeitfenster: At least 12 months following implant placement.
|
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.
|
At least 12 months following implant placement.
|
Mitarbeiter und Ermittler
Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.
Sponsor
Ermittler
- Hauptermittler: Hsun-Liang Chan, DDS, MS, Department of Periodontics and Oral Medicine University of Michigan School of Dentistry
Publikationen und hilfreiche Links
Die Bereitstellung dieser Publikationen erfolgt freiwillig durch die für die Eingabe von Informationen über die Studie verantwortliche Person. Diese können sich auf alles beziehen, was mit dem Studium zu tun hat.
Allgemeine Veröffentlichungen
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- Lee EA. Transitional custom abutments: optimizing aesthetic treatment in implant-supported restorations. Pract Periodontics Aesthet Dent. 1999 Nov-Dec;11(9):1027-34; quiz 1036.
- Lin GH, Chan HL, Wang HL. Effects of currently available surgical and restorative interventions on reducing midfacial mucosal recession of immediately placed single-tooth implants: a systematic review. J Periodontol. 2014 Jan;85(1):92-102. doi: 10.1902/jop.2013.130064. Epub 2013 Apr 11.
- Linkevicius T, Vindasiute E, Puisys A, Peciuliene V. The influence of margin location on the amount of undetected cement excess after delivery of cement-retained implant restorations. Clin Oral Implants Res. 2011 Dec;22(12):1379-84. doi: 10.1111/j.1600-0501.2010.02119.x. Epub 2011 Mar 8.
- Listgarten MA, Lang NP, Schroeder HE, Schroeder A. Periodontal tissues and their counterparts around endosseous implants [corrected and republished with original paging, article orginally printed in Clin Oral Implants Res 1991 Jan-Mar;2(1):1-19]. Clin Oral Implants Res. 1991 Jul-Sep;2(3):1-19. doi: 10.1034/j.1600-0501.1991.020309.x. No abstract available.
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Studienaufzeichnungsdaten
Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.
Haupttermine studieren
Studienbeginn (Tatsächlich)
7. August 2018
Primärer Abschluss (Tatsächlich)
22. Januar 2019
Studienabschluss (Tatsächlich)
22. Januar 2019
Studienanmeldedaten
Zuerst eingereicht
18. Mai 2018
Zuerst eingereicht, das die QC-Kriterien erfüllt hat
13. Juni 2018
Zuerst gepostet (Tatsächlich)
15. Juni 2018
Studienaufzeichnungsaktualisierungen
Letztes Update gepostet (Tatsächlich)
15. Februar 2019
Letztes eingereichtes Update, das die QC-Kriterien erfüllt
12. Februar 2019
Zuletzt verifiziert
1. Februar 2019
Mehr Informationen
Begriffe im Zusammenhang mit dieser Studie
Zusätzliche relevante MeSH-Bedingungen
Andere Studien-ID-Nummern
- HUM00139630
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