Abstract
Background Pure titanium continues to be the first choice for dental implants and represents the gold standard for their biocompatibility and physical and mechanical characteristics, while the titanium alloy (Ti6Al4V) has good mechanical properties. The surface structure of the titanium oxide layer formation on the surface influences and improves the bone response around dental implants. Purpose The purpose of this study is to evaluate the influence of a thermal treatment of Ti6Al4V implant surfaces and the bone healing response in a rabbit model. Methods Altogether sixteen implants with same design were inserted into the distal femoral metaphysis. A screw (13 mm long, 4 mm in diameter) was inserted in an implant bed. Each rabbit received two implants, one in the left femur and one in the right femur. The samples were histologically and histomorphometrically evaluated at 8 weeks. Results A statistically significant difference (p = 0.000034) was present histologically in the percentages of bone-implant contact (BIC) between the test group (BIC = 69.25±4.49%.) and control group (BIC = 56.25 ± 4.8%) by one-way analysis of variance (ANOVA). Significance was set at p ≤ 0.05. Conclusions The outcome of the present study indicates a novel approach to improving bone healing around titanium implants.
Highlights
The clinical success of metallic biomaterials used in the substitution of teeth is based on a low toxicity, good long-term mechanical stability, and a high degree of osseointegration [1, 2]
The purpose of this study is to evaluate the influence of a thermal treatment of Ti6Al4V implant surfaces and the bone healing response in a rabbit model
The outcomes of the present research showed that the implant surface modified by thermal treatment increases the bone implant contact
Summary
The clinical success of metallic biomaterials used in the substitution of teeth is based on a low toxicity, good long-term mechanical stability, and a high degree of osseointegration [1, 2]. The tissue response to biomaterials is influenced by nano-, micro-, and macrotopography of their surface [5]. It is well established that characteristics of implant surfaces, such as nano- and microtopography, and physicochemical composition positively influence the outcome of osseointegration, especially at the biological level, aiming at histological and morphological compatibilities [6]. The surface structure of the titanium oxide layer formation on the surface influences and improves the bone response around dental implants. The purpose of this study is to evaluate the influence of a thermal treatment of Ti6Al4V implant surfaces and the bone healing response in a rabbit model. The outcome of the present study indicates a novel approach to improving bone healing around titanium implants
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