Figure 6. BIC percentage measured with ImageJ analysis software
Figure 5. Time arrow about the stages of the study
Figure 4. A 2-month period was allowed for plaque retention and peri-implantitis
Figure 3. Silk ligatures placed in a submarginal position around the implants
Figure 2. Edentulous posterior mandible of the dog at 3 months after tooth extraction
Figure 1. Flowchart of the research design employed in the study. *Three dogs were used in each group 1 and 2. Three implants were inserted right side of the mandibles. After peri-implantitis period, extracted implants were inserted into the left side of the mandibles. **Two dogs were used in each group 3 and 4. Six failed implants from human inserted into the one dog’s mandible bilaterall...
Table 3 Inter- and intra-group ISQ analysis and measurements on day of surgery and at 3-month follow-up
Mean ± SDISQ day 0
Mean ± SDISQ at 3 month
p
Group 1
69.33 ± 8.48
77.77 ± 1.78
.019
Group 2
68.88 ± 5.90
79.44 ± 2.55
.001*
Group 3
71.77 ± 5.71
75.11 ± 5.84
.366
Group 4
70.44 ± 5.15
79.12 ± 4...
Table 2 Comparison of BIC percentages of 3 mm crestal area of the implants at 3-month follow-up
Group 1[Mean ± SD]
Group 2[Mean ± SD]
Group3[Mean ± SD]
Group 4[Mean ± SD]
p
77.67 ± 5.03
75.28 ± 10.65
71.86 ± 8.34
80.63 ± 5.58
.144*
Group 1[Mean ± SD]
Group 2[Mean ± SD]
Group3[Mean ± SD]
Group 4[Mean± SD]
p
83.39 ± 6.37
79.93 ± 11.83
75.45 ± 9.09
80.53 ± 5.22
290*
Levin et al. conducted a similar study and investigated the success rate of retrieved dental implants that were re-implanted into dogs. The infected implants were re-implanted into dog jaws without any chemical or mechanical cleaning and the authors reported that there was no difference in terms of BIC percentage between the infected/reinserted and new dental implants after a...
Levin et al. conducted a similar study and investigated the success rate of retrieved dental implants that were re-implanted into dogs. The infected implants were re-implanted into dog jaws without any chemical or mechanical cleaning and the authors reported that there was no difference in terms of BIC percentage between the infected/reinserted and new dental implants after an appropriate he...
Discussion
Approximately two million new dental implants are inserted per year around the world and tens of millions of implants are still in use. Moreover, it is estimated that approximately 200,000–250,000 implants are removed every year. Peri-implantitis is the major cause of the implant retrieval and also the most common complication caused by implant surgery. Mombelli et al. reported...
Results
The experimental period and the laboratory workup of the study were unremarkable. Surgical operations were uneventful and the post-operative healing periods were completed with no complications. Histologic analysis and the ISQ values indicated that osseointegration was achieved in all the implants.
Histomorphometric analysis
Histomorphometric analysis demonstrated that adequate bone f...
Removal and preparation of the implant-bone specimens
The implants with a neighboring bone were removed en bloc, and the adhesive soft tissues were dissected to investigate the healing status and the bone-implant contact (BIC) percentage. The specimens were fixed in 10% neutral buffered formalin for 48 h and dehydrated in subsequent concentrations of 70–99.9% ethanol. After dehydration, the sp...
Subsequently, the implant surfaces were rinsed with sterile saline solution and then all the implants were inserted in the contralateral side of the mandible of the same dog. After a 3-month osseointegration period, the animals were sacrificed with a high dose of pentobarbital (i.v.).
In group 2, the same procedures were applied as in group 1. However, unlike the implants in group 1, the implants...
Infiltration anesthesia with 2% articaine (Ultracaine DS, Sanofi Aventis Drugs, Istanbul, Turkey) was applied to the premolar area for hemostasis and for post-operative pain control. A full-thickness vestibular flap was elevated gently, and surgical tooth extraction was performed using surgical burs with straight elevators. Surgical wounds were closed with 3/0 vicryl sutures and streptomycin 0.5 g...
Methods
Research design
This in vivo study had a comparative, randomized, prospective research design, and each group consisted of 10 male beagle dogs that were veterinarian-controlled, healthy, and of similar weight. Animal Research Reporting in Vivo Experiment (ARRIVE) guidelines were used, and surgical procedure was approved by the Local Animal Experiments Ethical Committee of Erciyes Unive...
Background
Branemark et al. conducted the first experimental trial with titanium dental implants and created a new vision by defining the term “osseointegration” in the 1960s. Despite the advances in implant technology and protocols and the accumulating evidence in the literature, implant failure/loss may still occur due to several reasons. On the other hand, although dental implant therapy...
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...