Reusing dental implants
Reusing dental implants: an experimental study for detecting the success rates of re-osseointegration
Abstract
Background
The aim of this study was to histomorphometrically compare the implant-host integration between retrieved implants and new implants.
Methods
Jaws in 10 male beagle dogs were divided into four groups, and 36 dental implants were inserted into the jaws. In groups 1 and 2, experimental peri-implantitis was induced within 2 months after implant insertion. In group 1, surface decontamination of implants was achieved using air-flow and citric acid. In group 2, implants were sterilized with autoclave after air-flow and citric acid surface decontamination. Subsequently, these implants were inserted in contralateral jaws of the same dogs and a 3-month period was allowed for osseointegration. In group 3, the implants were removed from human jaws due to peri-implantitis and were inserted into dog jaws following surface cleaning protocol and sterilization with autoclave and a 3-month period was allowed for osseointegration. Group 4 was set as the control group. After the osseointegration period, all the animals were sacrificed. The degree of osseointegration in all groups was evaluated by evaluating the ISQ values and by using histomorphometric measurements.
Results
Histological findings showed that bone-implant contact (BIC) percentage (mean ± SD) was 83.39% ± 6.37 in group 1, 79.93% ± 11.83 in group 2, 75.45% ± 9.09 in group 3, and 80.53 ± 5.22 in group 4. Moreover, the resonance frequency analysis (RFA) and ISQ values were similar in all four groups both before and after the implantation.
Conclusions
The results of this experimental study indicated that there is no significant difference between new dental implants and re-used dental implants with regards to osseointegration around the implant.
Serial posts:
- Reusing dental implants
- Background : Reusing dental implants
- Methods : Reusing dental implants (1)
- Methods : Reusing dental implants (2)
- Methods : Reusing dental implants (3)
- Methods : Reusing dental implants (4)
- Results : Reusing dental implants
- Discussion : Reusing dental implants (1)
- Discussion : Reusing dental implants (2)
- Discussion : Reusing dental implants (3)
- Table 1 Comparison of BIC percentages of over the entire implant length at 3-month follow-up
- Table 2 Comparison of BIC percentages of 3 mm crestal area of the implants
- Table 3 Inter- and intra-group ISQ analysis and measurements on day of surgery and at 3-month follow-up
- Figure 1. Flowchart of the research design employed in the study
- Figure 2. Edentulous posterior mandible of the dog at 3 months after tooth extraction
- Figure 3. Silk ligatures placed in a submarginal position around the implants
- Figure 4. A 2-month period was allowed for plaque retention and peri-implantitis
- Figure 5. Time arrow about the stages of the study
- Figure 6. BIC percentage measured with ImageJ analysis software