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
Toestand
Conditie
Conditie
Interventie / Behandeling
Interventie / Behandeling
Studietype
Studietype
Inschrijving (Werkelijk)
Inschrijving
Fase
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
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)
Aantal wapens
Wapens en interventies
Deelnemersgroep / ArmDeelnemersgroep / Arm |
Interventie / BehandelingInterventie / 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
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
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
Sponsor
Sponsor
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
Studie start
Primaire voltooiing (Werkelijk)
Primaire voltooiing
Studie voltooiing (Werkelijk)
Studie voltooiing
Studieregistratiedata
Eerst ingediend
Eerst ingediend
Eerst ingediend dat voldeed aan de QC-criteria
Eerst ingediend dat voldeed aan de QC-criteria
Eerst geplaatst (Schatting)
Eerst geplaatst
Updates van studierecords
Laatste update geplaatst (Werkelijk)
Laatste update geplaatst
Laatste update ingediend die voldeed aan QC-criteria
Laatste update ingediend die voldeed aan QC-criteria
Laatst geverifieerd
Laatst geverifieerd
Meer informatie
Termen gerelateerd aan deze studie
Aanvullende relevante MeSH-voorwaarden
Andere studie-ID-nummers
Andere studie-ID-nummers
- YA-SHO-0001
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