Effect of the Different Implant Protocols on Peri-Implant Bone: A 6-Month Prospective Study in Beagle Dogs

2017 ◽  
Vol 40 (12) ◽  
pp. 701-708
Author(s):  
Dandan Song ◽  
Hui Zheng ◽  
Yan Huang ◽  
Xucheng Ma ◽  
Guowu Ma ◽  
...  

Objective To compare the effects of different implant placement and loading protocols on the marginal bone loss (MBL) in beagles by intraoral radiography. Methods and materials 61 dental implants were inserted on 9 beagle dogs at bilateral lower posteriors according to 8 different protocols: immediate implant placement and immediate loading for 3 months (IIP + IL3) or 6 months (IIP + IL6) and unloading (IIP + UL), immediate implant placement and delayed loading for 3 months (IIP + DL3) or 6 months (IIP + DL6), delayed implant placement and immediate loading for 3 months (DIP + IL3) or delayed loading for 3 months (DIP + DL3) and unloading (DIP + UL). Intraoral radiography was performed to analyze the MBL during each surgery, before and after the implant placement and at 3-month intervals after the procedure. Results In total, 57 samples were included. There was less MBL (p<0.05) in the IIP + IL3 group (1.22 ± 0.63 mm) compared to the DIP + IL3 group (1.89 ± 0.9 mm). The longer the loading time, the more bone loss appeared in the IIP + IL group; however, the results were reversed in the IIP + DL group. The MBL during the latter 3-month period was dramatically decreased compared to the former 3-month period in the IIP + DL3 group (p<0.05). Conclusions The IIP + IL group seems superior to the DL protocol and the MBL changed significantly during the first three months and thereafter became stable.

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Paolo De Angelis ◽  
Paolo Francesco Manicone ◽  
Edoardo Rella ◽  
Margherita Giorgia Liguori ◽  
Silvio De Angelis ◽  
...  

Abstract Background Nowadays, due to the esthetic and social demands of patients, conventional staged protocols seem to be increasingly replaced by faster, one-step protocols. The purpose of the present systematic review is to assess the peri-implant soft tissue changes after immediate implant placement and provisionalization (IIPP) comparing patients treated with or without a sub-epithelial connective tissue graft (SCTG) when replacing a single tooth in the esthetic region. Methods The present systematic review was written following the PRISMA checklist. Immediate implants placed with a connective tissue graft and without one were compared. The researched primary outcomes were the mid-buccal mucosa level (MBML) facial soft tissue thickness (FSTT) and marginal bone loss (MBL). The weighted mean differences (WMD) were estimated for all three outcomes. Results The change in the mid-buccal mucosa level in the intervention group was significantly higher (WMD 0.54; 95% CI 0.33–0.75), with no indication of heterogeneity (I2 = 16%). The facial soft tissue thickness increased significantly in the intervention group (WMD 0.79; 95% CI 0.37–1.22). The marginal bone loss was significantly higher in the control group (WMD 0.13; 95% CI 0.07–0.18), with no indication of heterogeneity (I2 = 0%). Conclusions The results of the meta-analyses showed a statistically significant reduced change of the marginal bone loss and vestibular recession, as well as higher soft tissue thickness, when a graft was used. The included studies had a short observation time; therefore, studies with longer follow-ups are needed to confirm these findings.


2019 ◽  
Vol 19 (1) ◽  
Author(s):  
Dong Wu ◽  
Lin Zhou ◽  
Jichao Lin ◽  
Jiang Chen ◽  
Wenxiu Huang ◽  
...  

Abstract Background The aim of the study was to compare the efficacy of the autogenous tooth bone and xenogenic bone grafted in immediate implant placement with bone defect. Methods Thirty patients whose compromised anterior teeth need immediate implant placement were enrolled. Autogenous tooth bone made from the extracted teeth by chair-side or the xenogenic bone were used to repaired bone defect. Clinical examination, radiographic assessment about the horizontal bone change in the level of 0 mm, 3 mm and 6 mm below the implant neck and the marginal bone loss were made immediately, 6 and 12 months after implant placement. Questionnaire of the feelings about the surgery were made at the time of removing the sutures. Results All implants achieved the success criteria without any complications at the follow-up period. The percent of the horizontal bone change and the marginal bone loss at 6 and 12 months were almost the same between two groups (P > .05). The horizontal bone loss at the first or the latter 6 months was almost the same (P > .05). But the horizontal bone loss at the 6 mm level was less than the 0 mm and 3 mm levels at 6 and 12 months (P < .05). Meanwhile patients seem more satisfied with the autogenous tooth bone derived from the questionnaire. Conclusion The bone volume change in the facial part of the implant after immediate placement is almost the same between two groups. Providing clinical evidence that the autogenous tooth bone made from compromised tooth can be an acceptable bone graft material.


2012 ◽  
Vol 38 (2) ◽  
pp. 155-164 ◽  
Author(s):  
Jyoti Bansal ◽  
Suresh Kedige ◽  
Abhishek Bansal ◽  
Samir Anand

A waiting period of 2 weeks after osteotomy increases the surrounding tissue activity to its maximum level as collagen formation and neoangiogenesis represent a relaxed and acceptable implant bed configuration. The aim of the present study was a clinical and radiologic evaluation of early osteotomy with implant placement delayed for 2 weeks with immediate loading in the anterior and premolar region with minimally invasive approach. Seven GS II implants (Osstem) were placed in 6 patients. Osteotomy was done followed by flap closure without placement of the implant. After waiting for approximately 2 weeks, implant placement was done, which was loaded immediately with provisional crown in implant protected occlusion. It was replaced by definitive restoration after 6–8 weeks, which was considered baseline. Implant stability and marginal bone levels were assessed with clinical and radiologic parameters at baseline, 6- and 12-month intervals. None of the implants were found mobile during the 1-year period. The average mean marginal bone loss was 0.4 mm over the 1-year follow-up period. In the present study, early osteotomy with delayed implant placement showed negligible crestal bone loss with no mobility.


2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
Aleshba S. Khan ◽  
Naauman Zaheer ◽  
Abdul M. Zaigham ◽  
Maliha Shahbaz ◽  
Usman Zaheer ◽  
...  

The possibility of platelet-rich plasma (PRP) on the improvement of bone and adjacent tissue recovery has previously been validated. However, there is insufficient data supporting the use of platelet-rich plasma to improve the healing of bone and adjacent tissues around an implant in the oral cavity. The purpose of this randomized controlled trial was to observe the effect of platelet-rich plasma (PRP) concentrate on marginal bone loss and bone density around immediate implant placement using Cone Beam Computerized Tomography (CBCT). This clinical study was conducted over a period of six months on 12 subjects, who were equally categorized into two groups. Group I was the control, whereas the subjects in Group II received PRP therapy at the surgical site. All subjects were given a standard treatment with a single implant system (DIO UFII hybrid sandblasted acid-etched implants). Inserted implants were analyzed through CBCT, and records were registered at baseline, at the 12th week before functional loading and the 26th week after functional loading. The bone loss was calculated at the proximal (mesial and distal) side of the implant and bone density at baseline, 12th week, and 26th week after implant placement. SPSS version 23.0 was used for statistical analysis of data. The changes in bone levels were measured and compared between the two groups using the Mann–Whitney U test, with no significant difference. Bone density was analyzed by an independent sample t -test, p value ≤ 0.05 was considered statistically significant. Again, no significant difference in bone density was observed between both groups at all three instances. Therefore, it can be concluded that local injection of PRP after immediate implant placement did not show any decrease in marginal bone loss or improvement in bone density. This trial is registered with NCT04650763.


2019 ◽  
Author(s):  
Dong Wu ◽  
Lin Zhou ◽  
Jichao Lin ◽  
Jiang Chen ◽  
Wenxiu Huang ◽  
...  

Abstract Objectives: The aim of the study was to compare the efficacy of the autogenous tooth bone and xenogenic bone grafted in immediate implant placement with bone defect. Material and methods: Thirty patients whose compromised anterior teeth need immediate implant placement were enrolled. Autogenous tooth bone made from the extracted teeth by chair-side or the xenogenic bone were used to repaired bone defect. Clinical examination, radiographic assessment about the horizontal bone change in the level of 0mm, 3mm and 6mm below the implant neck and the marginal bone loss were made immediately, 6 and 12 months after implant placement. Questionnaire of feeling was made at the time of removing the sutures.Results: All implants achieved the success criteria without any complications at the follow-up period. The percent of the horizontal bone change and the marginal bone loss at 6 and 12 months were almost the same between two groups (P>.05). The horizontal bone loss at the first or the latter 6 months is almost the same (P>.05). But the horizontal bone loss at the 6 mm level is less than the 0 mm and 3 mm levels at 6 and 12 months (P<.05). Meanwhile patients seem more satisfied with the autogenous tooth bone derived from the questionnaire.Conclusion: The bone volume change in the facial part of the implant after immediate placement is almost the same between two groups.Clinical Relevance: Providing clinical evidence that the autogenous tooth bone made from compromised tooth can be an acceptable bone graft material.


2019 ◽  
Author(s):  
Dong Wu ◽  
Lin Zhou ◽  
Jichao Lin ◽  
Jiang Chen ◽  
Wenxiu Huang ◽  
...  

Abstract Background: The aim of the study was to compare the efficacy of the autogenous tooth bone and xenogenic bone grafted in immediate implant placement with bone defect. Methods: Thirty patients whose compromised anterior teeth need immediate implant placement were enrolled. Autogenous tooth bone made from the extracted teeth by chair-side or the xenogenic bone were used to repaired bone defect. Clinical examination, radiographic assessment about the horizontal bone change in the level of 0mm, 3mm and 6mm below the implant neck and the marginal bone loss were made immediately, 6 and 12 months after implant placement. Questionnaire of feeling was made at the time of removing the sutures. Results: All implants achieved the success criteria without any complications at the follow-up period. The percent of the horizontal bone change and the marginal bone loss at 6 and 12 months were almost the same between two groups (P>.05). The horizontal bone loss at the first or the latter 6 months is almost the same (P>.05). But the horizontal bone loss at the 6 mm level is less than the 0 mm and 3 mm levels at 6 and 12 months (P<.05). Meanwhile patients seem more satisfied with the autogenous tooth bone derived from the questionnaire. Conclusion: The bone volume change in the facial part of the implant after immediate placement is almost the same between two groups. Providing clinical evidence that the autogenous tooth bone made from compromised tooth can be an acceptable bone graft material.


2019 ◽  
Author(s):  
Dong Wu ◽  
Lin Zhou ◽  
Jichao Lin ◽  
Jiang Chen ◽  
wenxiu huang(Former Corresponding Author) ◽  
...  

Abstract Background: The aim of the study was to compare the efficacy of the autogenous tooth bone and xenogenic bone grafted in immediate implant placement with bone defect. Methods: Thirty patients whose compromised anterior teeth need immediate implant placement were enrolled. Autogenous tooth bone made from the extracted teeth by chair-side or the xenogenic bone were used to repaired bone defect. Clinical examination, radiographic assessment about the horizontal bone change in the level of 0mm, 3mm and 6mm below the implant neck and the marginal bone loss were made immediately, 6 and 12 months after implant placement. Questionnaire of feeling was made at the time of removing the sutures. Results: All implants achieved the success criteria without any complications at the follow-up period. The percent of the horizontal bone change and the marginal bone loss at 6 and 12 months were almost the same between two groups (P>.05). The horizontal bone loss at the first or the latter 6 months is almost the same (P>.05). But the horizontal bone loss at the 6 mm level is less than the 0 mm and 3 mm levels at 6 and 12 months (P<.05). Meanwhile patients seem more satisfied with the autogenous tooth bone derived from the questionnaire. Conclusion: The bone volume change in the facial part of the implant after immediate placement is almost the same between two groups. Providing clinical evidence that the autogenous tooth bone made from compromised tooth can be an acceptable bone graft material.


2019 ◽  
Author(s):  
Dong Wu ◽  
Lin Zhou ◽  
Jichao Lin ◽  
Jiang Chen ◽  
wenxiu huang ◽  
...  

Abstract Background: The aim of the study was to compare the efficacy of the autogenous tooth bone and xenogenic bone grafted in immediate implant placement with bone defect. Methods: Thirty patients whose compromised anterior teeth need immediate implant placement were enrolled. Autogenous tooth bone made from the extracted teeth by chair-side or the xenogenic bone were used to repaired bone defect. Clinical examination, radiographic assessment about the horizontal bone change in the level of 0mm, 3mm and 6mm below the implant neck and the marginal bone loss were made immediately, 6 and 12 months after implant placement. Questionnaire of the feelings about the surgery were made at the time of removing the sutures. Results: All implants achieved the success criteria without any complications at the follow-up period. The percent of the horizontal bone change and the marginal bone loss at 6 and 12 months were almost the same between two groups (P>.05). The horizontal bone loss at the first or the latter 6 months was almost the same (P>.05). But the horizontal bone loss at the 6 mm level was less than the 0 mm and 3 mm levels at 6 and 12 months (P<.05). Meanwhile patients seem more satisfied with the autogenous tooth bone derived from the questionnaire. Conclusion: The bone volume change in the facial part of the implant after immediate placement is almost the same between two groups. Providing clinical evidence that the autogenous tooth bone made from compromised tooth can be an acceptable bone graft material.


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