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Histological and histomorphometrical analyses of biopsies harvested 11 years after maxillary sinus floor augmentation with deproteinized bovine and autogenous bone
Dept Oral & Maxillofacial Surg, Publ Hlth Serv, Gävle, Sweden; Ctr Res & Dev, Uppsala Univ, Gavleborg, Sweden; Dept Biomat, Inst Clin Sci, Univ Gothenburg, Gothenburg, Sweden.
Dept Oral & Maxillofacial Surg, Publ Hlth Serv, Gävle, Sweden; Ctr Res & Dev, Uppsala Univ, Gävleborg, Sweden.
Örebro University, School of Health and Medical Sciences.
Univ Gothenburg, Dept Biomat, Inst Clin Sci, Gothenburg, Sweden.
2010 (English)In: Clinical Oral Implants Research, ISSN 0905-7161, E-ISSN 1600-0501, Vol. 21, no 9, p. 961-970Article in journal (Refereed) Published
Abstract [en]

Objective The purpose of the present study was to histologically and histomorphometrically evaluate the long-term tissue response to deproteinized bovine bone (DPBB) particles used in association with autogenous bone and to compare particle size after 6 months and 11 years, in the same patients, in order to determine possible resorption. Material and methods Twenty consecutive patients (14 women and six men) with a mean age of 62 years (range 48-69 years) with severe atrophy of the posterior maxilla were included in this study. Thirty maxillary sinuses with < 5 mm subantral alveolar bone were augmented with a mixture of 80% DPBB and 20% autogenous bone. Eleven years (mean 11.5 years) after augmentation, biopsies were taken from the grafted areas of the 11 patients who volunteered to participate in this new surgical intervention. The following histomorphometrical measurements were performed in these specimens: total bone area in percentage, total area of the DPBB, total area of marrow space, the degree of DPBB-bone contact (percentage of the total surface length for each particle), the length of all DPBB particles and the area of all DPBB particles. The length and the area of the particles were compared with samples harvested from the same patients at 6 months (nine samples) and pristine particles from the manufacturer. Results The biopsies consisted of 44.7 +/- 16.9% lamellar bone, 38 +/- 16.9% marrow space and 17.3 +/- 13.2% DPBB. The degree of DPBB to bone contact was 61.5 +/- 34%. There were no statistically significant differences between the length and area of the particles after 11 years compared with those measured after 6 months in the same patients or to pristine particles from the manufacturer. Conclusion DPBB particles were found to be well integrated in lamellar bone, after sinus floor augmentation in humans, showing no significant changes in particle size after 11 years.

Place, publisher, year, edition, pages
2010. Vol. 21, no 9, p. 961-970
Keywords [en]
clinical study, histology, bovine hydroxyapatite, autogenous bone graft, fibrin glue, maxillary sinus floor augmentation
National Category
Biomedical Laboratory Science/Technology Medical and Health Sciences
Research subject
Medicine
Identifiers
URN: urn:nbn:se:oru:diva-12903DOI: 10.1111/j.1600-0501.2010.01939.xISI: 000280630200012OAI: oai:DiVA.org:oru-12903DiVA, id: diva2:383341
Available from: 2011-01-04 Created: 2011-01-03 Last updated: 2018-04-23Bibliographically approved

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Johansson, Carina B.

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