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A 3-Year Clinical Follow-up of Implants Placed in Two Different Biomaterials Used for Sinus Augmentation
Uppsala University, Disciplinary Domain of Medicine and Pharmacy, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Centre for Research and Development, Gävleborg.
2012 (English)In: International Journal of Oral & Maxillofacial Implants, ISSN 0882-2786, E-ISSN 1942-4434, Vol. 27, no 5, 1151-1162 p.Article in journal (Refereed) Published
Abstract [en]

Purpose: The aims of the present study were to compare a novel biphasic calcium phosphate (BCP) with deproteinized bovine bone (DBB) for maxillary sinus floor augmentation in a split-mouth design and to perform a clinical follow-up of dental implants placed in the augmented sinuses. Materials and Methods: Partially or completely edentulous patients requiring bilateral sinus augmentation were included in the study. The patients were randomized for augmentation with BCP (test) and DBB (control) in the contralateral side. Eight months after grafting, dental implants were placed. After 3 years of graft healing, core biopsy specimens were obtained from the grafted areas for histologic and histomorphometric analyses. After 3 years of functional implant loading, implant survival/success rates and clinical indices were assessed and radiographic examination and resonance frequency analysis were performed. Results: Nine completely edentulous patients and two partially edentulous patients (mean age, 67 years) who required bilateral sinus augmentation were included in the study, and 62 implants were placed. The mean values for the area of newly formed bone in the retrieved specimens were 29% +/- 14.3% and 32% +/- 18.0% for BCP and DBB, respectively; the percentage of graft particles in contact with bone was 38% +/- 10.9% in the BCP group and 44% +/- 12.1% in the DBB group (no statistical significant differences between groups). The mean values for the area of BCP particles and DBB particles were 20% +/- 7.5% and 24% +/- 13.5%, respectively (difference not significant). One dental implant was lost from each group, resulting in an overall implant survival rate of 96.8% after 3 years of loading. Conclusion: After 3 years, a similar amount of newly formed bone was present regardless of the biomaterial used. The choice of biomaterial did not seem to influence implant survival rates.

Place, publisher, year, edition, pages
2012. Vol. 27, no 5, 1151-1162 p.
Keyword [en]
biphasic calcium phosphate, deproteinized bovine bone, histology, implants, sinus floor augmentation
National Category
Dentistry
Identifiers
URN: urn:nbn:se:uu:diva-187109ISI: 000310395900021PubMedID: 23057029OAI: oai:DiVA.org:uu-187109DiVA: diva2:573872
Available from: 2012-12-03 Created: 2012-12-03 Last updated: 2017-12-07Bibliographically approved

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