Immediately Loaded Implants with or without Abutments Supporting Fixed Partial Dentures: 1-Year Results from a Prospective, Randomized, Clinical Trial.

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Göthberg, Catharina,1960Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för biomaterialvetenskap,Institute of Clinical Sciences, Department of Biomaterials (author)

Immediately Loaded Implants with or without Abutments Supporting Fixed Partial Dentures: 1-Year Results from a Prospective, Randomized, Clinical Trial.

Article/chapterEnglish2014

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2013-01-07
Wiley,2014

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LIBRIS-ID:oai:gup.ub.gu.se/170163
https://gup.ub.gu.se/publication/170163URI
https://doi.org/10.1111/cid.12025DOI

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Language:English

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Subject category:art swepub-publicationtype

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PURPOSE: To evaluate 1-year implant survival and marginal bone loss around implants that support fixed partial dentures loaded immediately or after 3 months, and effects from abutment usage. MATERIALS AND METHODS: In this 2005 to 2009 randomized, parallel-group, clinical trial, 50 partially edentulous patients each received three Brånemark TiUnite™ implants (Nobel Biocare®, Göteborg, Sweden), mostly in the posterior maxilla. Two implants were fitted with abutments: a TiUnite™ surface and a machine-milled surface; the suprastructure was attached directly at implant level for the third implant. After randomized allocation, implants were immediately loaded with a fixed temporary bridge (test group) or left unloaded for 3 months (control group). A permanent fixed suprastructure replaced the temporary bridge after 6 months (test). Hard and soft tissues were examined during pretreatment and surgery plus 2 days, 14 days, 4 weeks, 3 months, and 1 year after surgery. RESULTS: After 1 year, four implants were lost in the test and two in the control groups (1-year survival rates of 94.9% [test] and 97.2% [control], with no significant intergroup difference). Resonance frequency analysis values indicated a similar pattern in both groups, with implant stability quotient (ISQ) reduction between 2 and 4 weeks. The test group had a significantly lower ISQ than the control group at these appointments. After 1 year, marginal bone losses around the implants were, on average, 1.32mm (test, standard error of the mean [SEM] 0.08) and 1.24mm (control, SEM 0.08), with no significant intergroup difference. Significantly larger marginal bone loss was observed at implants without abutment compared with implants with abutment. CONCLUSIONS: For both groups, this study showed similar implant survival rates and marginal bone loss. Larger bone loss was found at implants loaded without attached abutments.

Subject headings and genre

MEDICIN OCH HÄLSOVETENSKAP Klinisk medicin hsv//swe
MEDICAL AND HEALTH SCIENCES Clinical Medicine hsv//eng
MEDICIN OCH HÄLSOVETENSKAP Medicinsk bioteknologi Biomaterialvetenskap hsv//swe
MEDICAL AND HEALTH SCIENCES Medical Biotechnology Biomaterials Science hsv//eng

Added entries (persons, corporate bodies, meetings, titles ...)

André, Ulrika (author)
Gröndahl, Kerstin,1948 (author)
Ljungquist, Birgit (author)
Thomsen, Peter,1953Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för biomaterialvetenskap,Institute of Clinical Sciences, Department of Biomaterials(Swepub:gu)xthope (author)
Slotte, Christer,1954Gothenburg University,Göteborgs universitet,Institutionen för kliniska vetenskaper, Avdelningen för biomaterialvetenskap,Institute of Clinical Sciences, Department of Biomaterials(Swepub:gu)xsloch (author)
Göteborgs universitetInstitutionen för kliniska vetenskaper, Avdelningen för biomaterialvetenskap (creator_code:org_t)

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In:Clinical implant dentistry and related research: Wiley16:4, s. 487-5001708-82081523-0899

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