Abstract
Objective: The aim of this article is to compare two surface treatment types of the dental implants inserted in tibiae of rabbits on the early stages of the bone repair considering the pattern of maturation of collagen fibers and the osseointegration process. Materials and methods: 10 modSAE (sandblast and acid etched modified) and 10 AO (anodic oxidation) implants were evaluated such as bone-implant contact (BIC), and collagen fiber orientation verified by circular polarized light (BICCPL). The results were measured at 7, 21 and 42 postoperative days. Results: The modSAE implants induced greater BIC at all times observed. The BICCPL analysis revealed the both implants showed a maturation pattern collagen fiber formation. However, BICCPL values of modSAE were higher than AO values at 21 days. Conclusions: In conclusion, the topography and surface characteristic of modSAE implant showed a tendency to improve bone tissue integration and also contributes to maturation of collagen fibers. This fact was evidenced at 21 days. The study shows the influence of topography and surface treatment of titanium dental implants in different stages of bone repair.
Highlights
A major advance in dentistry has been the successful replacement of lost natural teeth by osseointegrated implants
In osseointegration of dental implants, studies have demonstrated the use of the method of circular polarized light as an important criterion for research in pattern of collagen fiber orientation since this pattern is closely related to bone repair
At 21 days the BICCPL results were coherent with those obtained in bone-implant contact (BIC), and modSAE implants showed greatest value of collagen fibers orientation adjacent implant
Summary
A major advance in dentistry has been the successful replacement of lost natural teeth by osseointegrated implants. Different technologies, including grit-blasting, acid-etching, anodic oxidation, coating or combinations of techniques have been used to change the surface topography in an attempt to improve implant fixation with bone [2]. Based on this information, several authors have recommended the immediate use of surface treated implants [3,4,5,6,7]. The purpose of the present study was to compare the both cylindrical implants modSAE (chemically treated sand-blast and acid etched modified) and AO (anodic oxidation surface) to evaluate aspects such as bone-implant contact (BIC) and collagen fiber orientation verified by means of circular polarized light (BICCPL) on early stages of osseointegration
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