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Materials 2017, 10(6), 644; doi:10.3390/ma10060644

Implant Stability of Biological Hydroxyapatites Used in Dentistry

1
Cátedra Internacional de Investigación en Odontología, Universidad Católica San Antonio de Murcia, Avda. Jerónimos, 135, 30107 Guadalupe, Spain
2
Biotecnos Research Center, Rua Dr. Bonazo No. 57, Santa Maria 97015-001, Brasil
3
Departamento de Materiales, Óptica y Tecnologia Electrónica, Universidad Miguel Hernández, Avda. Universidad s/n, 03202 Elche, Spain
4
Instituto de Bioingenieria, Universidad Miguel Hernandez, Avda. Ferrocarril s/n, 03202 Elche, Spain
*
Author to whom correspondence should be addressed.
Received: 8 May 2017 / Revised: 31 May 2017 / Accepted: 9 June 2017 / Published: 12 June 2017
(This article belongs to the Special Issue Dental Implant Materials)
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Abstract

The aim of the present study was to monitor implant stability after sinus floor elevation with two biomaterials during the first six months of healing by resonance frequency analysis (RFA), and how physico-chemical properties affect the implant stability quotient (ISQ) at the placement and healing sites. Bilateral maxillary sinus augmentation was performed in 10 patients in a split-mouth design using a bobine HA (BBM) as a control and porcine HA (PBM). Six months after sinus lifting, 60 implants were placed in the posterior maxilla. The ISQ was recorded on the day of surgery from RFA at T1 (baseline), T2 (three months), and T3 (six months). Statistically significant differences were found in the ISQ values during the evaluation period. The ISQ (baseline) was 63.8 ± 2.97 for BBM and 62.6 ± 2.11 for PBM. The ISQ (T2) was ~73.5 ± 4.21 and 67 ± 4.99, respectively. The ISQ (T3) was ~74.65 ± 2.93 and 72.9 ± 2.63, respectively. All of the used HAs provide osseointegration and statistical increases in the ISQ at baseline, T2 and T3 (follow-up), respectively. The BBM, sintered at high temperature with high crystallinity and low porosity, presented higher stability, which demonstrates that variations in the physico-chemical properties of a bone substitute material clearly influence implant stability. View Full-Text
Keywords: hydroxyapatite; xenografts; implant design; implant surface hydroxyapatite; xenografts; implant design; implant surface
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Ramírez Fernández, M.P.; Gehrke, S.A.; Mazón, P.; Calvo-Guirado, J.L.; De Aza, P.N. Implant Stability of Biological Hydroxyapatites Used in Dentistry. Materials 2017, 10, 644.

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