Long‐Term Clinical, Microbiological, and Radiographic Outcomes of Brånemark™ Implants Installed in Augmented Maxillary Bone for Fixed Full‐Arch Rehabilitation
- 11 July 2011
- journal article
- research article
- Published by Wiley in Clinical Implant Dentistry and Related Research
- Vol. 15 (1), 73-82
- https://doi.org/10.1111/j.1708-8208.2011.00359.x
Abstract
Purpose: To document the long-term outcome of Brånemark implants installed in augmented maxillary bone and to identify parameters which are associated with peri-implant bone level. Material and methods: Patients of a periodontal practice who had been referred to a maxillofacial surgeon for iliac crest bone grafting in the atrophic maxilla were retrospectively recruited. Five months following grafting they received 7 to 8 turned Brånemark implants. Following submerged healing of another 5 months, implants were uncovered and restorative procedures for fixed rehabilitation were initiated 2 to 3 months thereafter. The primary outcome variable was bone level defined as the distance from the implant-abutment interface to the first visible bone-to-implant contact. Secondary outcome variables included plaque index, bleeding index, probing depth and levels of 40 species in subgingival plaque samples as identified by means of checkerboard DNA-DNA hybridization. Results: Nine out of 16 patients (8 females, 1 male; mean age 59) with 71 implants agreed to come in for evaluation after on average 9 years (SD 4; range 3 – 13) of function. One implant was deemed mobile at the time of inspection. Clinical conditions were acceptable with 11 % of the implants showing pockets ≥ 5 mm. Periodontopathogens were frequently and in high numbers encountered. Clinical parameters and bacterial levels were highly patient-dependent. The mean bone level was 2.30 mm (SD 1.53; range 0.00 – 6.95) with 23 % of the implants demonstrating advanced resorption (bone level > 3 mm). Regression analysis showed a significant association of the patient (p < 0.001) and plaque index (p = 0.007) with bone level. Conclusions: The long-term outcome of Brånemark implants installed in iliac crest augmented maxillary bone is acceptable, however advanced peri-implant bone loss is rather common and indicative of graft resorption. This phenomenon is patient-dependent and seems also associated with oral hygieneKeywords
This publication has 22 references indexed in Scilit:
- Volume changes of autogenous bone grafts after alveolar ridge augmentation of atrophic maxillae and mandiblesInternational Journal of Oral & Maxillofacial Surgery, 2009
- A 9–14 year follow-up of onlay bone grafting in the atrophic maxillaInternational Journal of Oral & Maxillofacial Surgery, 2009
- Comparison of bacterial plaque samples from titanium implant and tooth surfaces by different methodsClinical Oral Implants Research, 2005
- Impact of sample storage on detection of periodontal bacteriaOral Microbiology and Immunology, 2005
- Use of checkerboard DNA–DNA hybridization to study complex microbial ecosystemsOral Microbiology and Immunology, 2004
- Mandibular bone graft in the anterior maxilla for single-tooth implants: Presentation of a surgical methodInternational Journal of Oral & Maxillofacial Surgery, 1997
- Titanium implants and onlay bone graft to the atrophic edentulous maxilla: A 3-year longitudinal studyInternational Journal of Oral & Maxillofacial Surgery, 1996
- A classification of the edentulous jawsInternational Journal of Oral & Maxillofacial Surgery, 1988
- The microbiota associated with successful or failing osseointegrated titanium implantsOral Microbiology and Immunology, 1987
- Surgical correction of the atrophic alveolar ridge: A preliminary report on a new concept of treatmentOral Surgery, Oral Medicine, Oral Pathology, 1977