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Soft tissues healing at immediate transmucosal implants placed into molar extraction sites with buccal self-contained dehiscences. A 12-month controlled clinical trial.
- Source :
-
Clinical oral implants research [Clin Oral Implants Res] 2009 May; Vol. 20 (5), pp. 482-8. Date of Electronic Publication: 2009 Mar 04. - Publication Year :
- 2009
-
Abstract
- Aim: To assess soft tissues healing at immediate transmucosal implants placed into molar extraction sites with buccal self-contained dehiscences.<br />Material and Methods: For this 12-month controlled clinical trial, 15 subjects received immediate transmucosal tapered-effect (TE) implants placed in molar extraction sockets displaying a buccal bone dehiscence (test sites) with a height and a width of > or =3 mm, respectively. Peri-implant marginal defects were treated according to the principles of Guided Bone Regeneration (GBR) by means of deproteinized bovine bone mineral particles in conjunction with a bioresorbable collagen membrane. Fifteen subjects received implants in healed molar sites (control sites) with intact buccal alveolar walls following tooth extraction. In total, 30 TE implants with an endosseous diameter of 4.8 mm and a shoulder diameter of 6.5 mm were used. Flaps were repositioned and sutured, allowing non-submerged, transmucosal soft tissues healing. At the 12-month follow-up, pocket probing depths (PPD) and clinical attachment levels (CAL) were compared between implants placed in the test and the control sites, respectively.<br />Results: All subjects completed the 12-month follow-up period. All implants healed uneventfully, yielding a survival rate of 100%. After 12 months, statistically significantly higher (P<0.05) PPD and CAL values were recorded around implants placed in the test sites compared with those placed in the control sites.<br />Conclusions: The findings of this controlled clinical trial showed that healing following immediate transmucosal implant installation in molar extraction sites with wide and shallow buccal dehiscences yielded less favorable outcomes compared with those of implants placed in healed sites, and resulted in lack of 'complete' osseointegration.
- Subjects :
- Adult
Animals
Bone Matrix transplantation
Cattle
Chi-Square Distribution
Crowns
Dental Prosthesis, Implant-Supported
Dental Restoration Failure
Female
Follow-Up Studies
Guided Tissue Regeneration, Periodontal methods
Humans
Male
Middle Aged
Minerals therapeutic use
Molar
Mouth Mucosa physiology
Osseointegration drug effects
Periodontal Index
Prospective Studies
Surgical Wound Dehiscence therapy
Tooth Extraction
Tooth Socket drug effects
Wound Healing drug effects
Dental Implantation, Endosseous methods
Dental Implants, Single-Tooth
Osseointegration physiology
Surgical Wound Dehiscence complications
Tooth Socket surgery
Wound Healing physiology
Subjects
Details
- Language :
- English
- ISSN :
- 1600-0501
- Volume :
- 20
- Issue :
- 5
- Database :
- MEDLINE
- Journal :
- Clinical oral implants research
- Publication Type :
- Academic Journal
- Accession number :
- 19281503
- Full Text :
- https://doi.org/10.1111/j.1600-0501.2008.01688.x