Maxillary sinus floor augmentation with vegetal hydroxyapatite “versus” demineralized bovine bone : a randomized clinical study with a split-mouth design
Articolo
Data di Pubblicazione:
2014
Citazione:
Maxillary sinus floor augmentation with vegetal hydroxyapatite “versus” demineralized bovine bone : a randomized clinical study with a split-mouth design / G. Garlini, M. Redemagni, E. Canciani, C. Dellavia. - In: JOURNAL OF DENTAL IMPLANTS. - ISSN 0974-6781. - 4:2(2014 Jul), pp. 118-125.
Abstract:
Purpose: The objective of this paper was to compare histologically and histomorphometrically a
hydroxyapatite originated by algae (Algipore) versus demineralized bovine bone (Bio-Oss Geistlich
Pharma, Wolhusen, Switzerland) utilised as bone substitutes in maxillary sinus floor elevation with
a split-mouth design.
Materials and Methods: Five healthy patients underwent a bilateral maxillary sinus floor elevation
procedure under local anesthesia. In each case, residual posterior maxillary bone height was between 2 mm and 5 mm. The original bone was augmented with a split-mouth design with 100% Algipore on the test side and 100% Bio-Oss on the contralateral control side. After a healing period of 6-8 months during the re-opening surgery biopsies were retrieved and Xive Implants (Dentsply Implants, Mannheim, Germany) were placed.
Results: At microscopic level both Bio-Oss and Algipore blocks resulted well osseointegrated,
without inflammatory infiltrate, with an high level of mineralization, without gap between the bone
and biomaterial interfaces that resulted indistinguishable. A close contact between the two faces was
observed without the presence of slits. Histomorphometrical analysis showed that, on average, the
percentage of medullary space was higher for the Bio-Oss compared with Algipore (38.61% ±8.90%
vs. 29.23% ±7.89%). In contrast, the mean value of residual particles of biomaterials was higher in
Algipore than in Bio-Oss specimens (42.86% ±18.61% vs. 22.30% ±6.40% respectively).
Conclusions: The data confirmed that sinus lift carried out with Algipore performed in a similar way
of that carried out with Bio-Oss and that this material is safe, predictable and without invasiveness.
Tipologia IRIS:
01 - Articolo su periodico
Keywords:
Bone substitutes; demineralized bovine bone; sinus augmentation; vegetable hydroxyapatite
Elenco autori:
G. Garlini, M. Redemagni, E. Canciani, C. Dellavia
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