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Study Comparing OsseoSpeed™ Implants of Two Different Lengths in the Upper and Lower Posterior Jaw
An Open, Prospective, Randomized, Multi-center Study Comparing OsseoSpeed™ Implant 6 mm With OsseoSpeed™ Implant 11 mm in the Posterior Maxilla and Mandible. A 5-year Follow-up Study.
Studie Overzicht
Toestand
Conditie
Interventie / Behandeling
Studietype
Inschrijving (Werkelijk)
Fase
- Niet toepasbaar
Contacten en locaties
Studie Locaties
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Victoria
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Melbourne, Victoria, Australië, 3010
- School of Dental Science, University of Melbourne
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Apeldoorn, Nederland, 7315
- Praktijk De Mondhoek
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London, Verenigd Koninkrijk, SE1 9RT
- King's College London Dental Institute at Guy's King's and St Thomas' Hospitals
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California
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Los Angeles, California, Verenigde Staten, 90089-0641
- USC School of Dentistry
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Iowa
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Iowa City, Iowa, Verenigde Staten, 52242-1010
- The University of Iowa, College of Dentistry
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Göteborg, Zweden, SE 405 30
- Dept. of Parodontology, Göteborg University
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Deelname Criteria
Geschiktheidscriteria
Leeftijden die in aanmerking komen voor studie
Accepteert gezonde vrijwilligers
Geslachten die in aanmerking komen voor studie
Beschrijving
Inclusion Criteria:
- Provision of informed consent
- Aged 20-70 years at enrolment
- History of edentulism in the study area of at least four months
- Neighboring tooth/teeth to the planned bridge must have natural root(s)
- Presence of natural teeth, partial prosthesis and/or implants in the opposite jaw in contact with the planned bridge.
- Deemed by the investigator to have a bone height of at least 11 mm and a bone width of minimum 6 mm
- Deemed by the investigator as likely to present an initially stable implant situation
Exclusion Criteria:
- Unlikely to be able to comply with study procedures, as judged by the investigator
- Earlier graft procedures in the study area
- Uncontrolled pathologic processes in the oral cavity
- Known or suspected current malignancy
- History of radiation therapy in the head and neck region
- History of chemotherapy within 5 years prior to surgery
- Systemic or local disease or condition that could compromise post-operative healing and/or osseointegration
- Uncontrolled diabetes mellitus
- Corticosteroids or any other medication that could influence post-operative healing and/or osseointegration
- Smoking more than 10 cigarettes/day
- Present alcohol and/or drug abuse
- Involvement in the planning and conduct of the study (applies to both Astra Tech staff and staff at the study site)
- Previous enrolment in the present study.
- Severe non-compliance to protocol as judged by the investigator and/or Astra Tech
- Simultaneous participation in another clinical study, or participation in a clinical study during the last 6 months
Studie plan
Hoe is de studie opgezet?
Ontwerpdetails
- Primair doel: Behandeling
- Toewijzing: Gerandomiseerd
- Interventioneel model: Parallelle opdracht
- Masker: Geen (open label)
Wapens en interventies
Deelnemersgroep / Arm |
Interventie / Behandeling |
|---|---|
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Experimenteel: Group-1, Implant length 6 mm
Subjects treated with OsseoSpeed™ implant, length: 6 mm
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OsseoSpeed™ dental implant, length: 6 mm
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Ander: Group-2, Implant length 11 mm
Subjects treated with OsseoSpeed™ implant, length: 11 mm
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OsseoSpeed™ dental implant, length: 11 mm
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Wat meet het onderzoek?
Primaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
|---|---|---|
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Radiological Assessments of Marginal Bone Level Alteration
Tijdsspanne: Evaluated from implant installation to 5 years follow-up after implant placement
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Marginal Bone Level determined from radiographs and expressed as the difference from a reference point on the implant to the most coronal bone-to-implant contact on the mesial and distal aspect of the implant. Marginal Bone Level expressed in millimeters at the 5 year follow-up visit compared to values obtained at delivery of temporary restoration i.e. loading (baseline). Positive value = bone gain, Negative value = bone loss. |
Evaluated from implant installation to 5 years follow-up after implant placement
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Secundaire uitkomstmaten
Uitkomstmaat |
Maatregel Beschrijving |
Tijdsspanne |
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Overall Implant Survival
Tijdsspanne: Evaluated 5 years after implant placement
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Overall implant survival, measured on implant level
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Evaluated 5 years after implant placement
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Evaluation of the Periimplant Mucosa Condition - By Assessment BoP
Tijdsspanne: Measured at the 5-year follow-up visit after loading
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Condition of the periimplant mucosa by assessment of Bleeding on Probing (BoP).
Presented as s count of implants that show presence of BoP.
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Measured at the 5-year follow-up visit after loading
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Evaluation of the Periimplant Mucosa Condition - By Assessment of Change in PPD
Tijdsspanne: Evaluated at implant loading and at the 5-year follow-up visit.
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Condition of the periimplant mucosa by assessment of change in probing pocket depth (PPD). Change in pocket depth expressed in millimeters at the 5-year follow-up visit, compared to values obtained at delivery of permanent restoration, i.e. loading (baseline). Negative value = increased pocket depth. |
Evaluated at implant loading and at the 5-year follow-up visit.
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Presence of Plaque
Tijdsspanne: Evaluated at the 5-year follow-up visit after loading.
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Presence of plaque was evaluated at four surfaces around each study position (mesial, facial, distal and lingual). Plaque was recorded as presence or absence of plaque by visual inspection. A study position was considered as bleeding "yes" if at least one of the four surfaces around the implant showed presence of bleeding on probing. |
Evaluated at the 5-year follow-up visit after loading.
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Medewerkers en onderzoekers
Onderzoekers
- Studie directeur: Anna-Karin Lundgren, Direktor Clinical Research, Dentsply Sirona Implants, Mölndal, SWEDEN
Publicaties en nuttige links
Algemene publicaties
- Gulje F, Abrahamsson I, Chen S, Stanford C, Zadeh H, Palmer R. Implants of 6 mm vs. 11 mm lengths in the posterior maxilla and mandible: a 1-year multicenter randomized controlled trial. Clin Oral Implants Res. 2013 Dec;24(12):1325-31. doi: 10.1111/clr.12001. Epub 2012 Sep 3.
- Zadeh HH, Gulje F, Palmer PJ, Abrahamsson I, Chen S, Mahallati R, Stanford CM. Marginal bone level and survival of short and standard-length implants after 3 years: An Open Multi-Center Randomized Controlled Clinical Trial. Clin Oral Implants Res. 2018 Aug;29(8):894-906. doi: 10.1111/clr.13341. Epub 2018 Jul 12.
Studie record data
Bestudeer belangrijke data
Studie start
Primaire voltooiing (Werkelijk)
Studie voltooiing (Werkelijk)
Studieregistratiedata
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
- YA-SHO-0001
Deze informatie is zonder wijzigingen rechtstreeks van de website clinicaltrials.gov gehaald. Als u verzoeken heeft om uw onderzoeksgegevens te wijzigen, te verwijderen of bij te werken, neem dan contact op met register@clinicaltrials.gov. Zodra er een wijziging wordt doorgevoerd op clinicaltrials.gov, wordt deze ook automatisch bijgewerkt op onze website .
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