Results : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
All implants resulted clinically integrated and stable into the bone tissue. No signs of tissue inflammation or infection were detected.
At low magnification, all the samples appeared surrounded by new tissue. The distinction between native tissue and newly formed bone was not clear, likely due to the fact that the latter is still in an initial forming phase. In the machined samples (group C) bone fractured trabeculae were present around the fixture apex (Fig. 5).
In some samples, belonging to the groups A and B, however, it is possible to observe some areas where a thin osteoid matrix band was directly contacted to the implant surface.
All the samples appeared surrounded by bone tissue. A thin layer of newly formed bone covered implant threads. Newly formed bone connected the fractured bone trabeculae to bone fragments and/or to the implant surface. Implants belonging to groups A and B were observed more osteogenesis areas and mineralization nuclei than implants of group C (Fig. 6).
The bone tissue layer onto SLActive and laser-treated surfaces appeared almost continuous with small marrow spaces interruption, while on the machine surface larger spaces with marrow tissue alternated with the bony trabeculae onto the titanium surface.
No implant failure was detected during the follow-up period. After 15 healing days, the mean BIC% was almost the same in groups A and B while machined implants (group C) revealed the lowest osseointegration rate value. BIC% differences between the groups were statistically significant (P < 0.05). All BIC% mean values of each group were displayed in Table 2.
After 30 healing days, groups A and B showed better osseointegration values compared to those at 15 days. Group B implants showed BIC% value significantly higher (P > 0.05) in respect with those at 15 days. Group C showed a mean BIC% value lower than that observed at 15 days. BIC% differences between groups were significant (P < 0.05). All BIC% data, after 30 days, were summarized in Table 3.
Serial posts:
- Abstract : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Introduction : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [1]
- Introduction : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [2]
- Materials and methods : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [1]
- Materials and methods : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [2]
- Materials and methods : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [3]
- Results : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Discussion : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [1]
- Discussion : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [2]
- Conclusions : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Availability of data and materials : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- References : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [1]
- References : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [2]
- References : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep [3]
- Acknowledgements : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Funding : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Author information : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Ethics declarations : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
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- About this article : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on sheep
- Table 1 Implants details of both groups: screw pitch, smooth neck length, surface treatments, and roughness : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant
- Table 2 Mean BIC% value of each group after 15 days of healing : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on
- Table 3 Mean BIC% value of each group after 30 days of healing : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant surfaces: an in vivo histologic analysis on
- Fig. 1. Scanning electron microscopy picture of group A implant surface : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant
- Fig. 2. Scanning electron microscopy picture of group B implant surface : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant
- Fig. 3. Scanning electron microscopy picture of group C implant surface : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant
- Fig. 4. Exemplificative photo of implant placement in sheep iliac crest (left side). All implant groups were inserted in the same bone host : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant
- Fig. 5. Optic microscope photo (× 9 magnification) after 15 days of implantation. Left side: machined implant (group C). Central photo: sandblasted and acid-etched implant (group A). Right side: laser-treated implant : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant
- Fig. 6. Optic microscope photo (× 9 magnification) after 30 days of implantation. Left side: machined implant (group C). Central photo: sandblasted and acid-etched implant (group A). Right side: laser-treated implant : Comparative evaluation among laser-treated, machined, and sandblasted/acid-etched implant