EVALUATION OF OSSEOINTEGRATION AND CRESTAL BONE LOSS OF IMPLANT PLACED IN DIABETIC PATIENTS AND OTHER MEDICALLY COMPROMISED PATIENTS

Author(s):  
Nurul Husniyah binti Che Soh, ◽  
Revathi Duraisamy ◽  
Arthi B
2020 ◽  
Vol 46 (4) ◽  
pp. 396-406 ◽  
Author(s):  
Giorgio Lombardo ◽  
Annarita Signoriello ◽  
Miguel Simancas-Pallares ◽  
Mauro Marincola ◽  
Pier Francesco Nocini

The purpose of this retrospective study was to determine survival and peri-implant marginal bone loss of short and ultra-short implants placed in the posterior mandible. A total of 98 patients received 201 locking-taper implants between January 2014 and January 2015. Implants were placed with a 2-stage approach and restored with single crowns. Clinical and radiographic examinations were performed at 3-year recall appointments. At that time, the proportion of implant survival by length, and variations of crestal bone levels (mean crestal bone loss and mean apical shift of the “first bone-to-implant contact point” position) were assessed. Significance level was set at 0.05. The total number of implants examined 36 months after loading included: 71 implants, 8.0 mm in length; 82 implants, 6.0 mm in length; and 48 implants, 5.0 mm in length. Five implants failed. The overall proportion of survival was 97.51%, with 98.59% for the 8.0-mm implants, 97.56% for the 6.0-mm implants, and 95.83% for the 5.0-mm implants. No statistically significant differences were found among the groups regarding implant survival (P = .73), mean crestal bone loss (P = .31), or mean apical shift of the “first bone-to-implant contact point” position (P = .36). Single-crown short and ultra-short implants may offer predictable outcomes in the atrophic posterior mandibular regions, though further investigations with longer follow-up evaluations are necessary to validate our results.


2018 ◽  
Vol 29 ◽  
pp. 112-112
Author(s):  
Fausto Zamparini ◽  
Arash Azizi ◽  
Stefano Chersoni ◽  
Andrea Spinelli ◽  
Maria Giovanna Gandolfi ◽  
...  
Keyword(s):  

2012 ◽  
Vol 2012 ◽  
pp. 1-14 ◽  
Author(s):  
Yuko Ujiie ◽  
Reynaldo Todescan ◽  
John E. Davies

Purpose. The immunological mechanisms of peri-implant crestal bone loss have, hitherto, not been elucidated. We hypothesized that bacterial products from the microgap cause upregulation of cytokines in otherwise healthy peri-implant cells, which results in osteoclast formation and, ultimately, in bone resorption.Materials and Methods. We used RT-PCR and ELISA to assay mediators of osteoclastogenesis in rat and human macrophages (r-and hMO); bone marrow derived stromal cells (r-and hBMCs); and human gingival fibroblasts (hGF)—with or without stimulation by LPS. TRAP positive multinucleate cells were assessed for their resorptive ability.Results. We show that IL-1α, IL-1β, and IL-6 were expressed by all examined cell types, and TNF-αwas upregulated in hGF. Secretion of IL-1αand IL-1βproteins was stimulated in hMO by LPS, and IL-6 protein secretion was highly stimulated in hBMCs and hGF. Both LPS and RANKL stimulated macrophages to form osteoclast-like TRAP positive cells, which resorbed calcium phosphate substrates.Conclusion. Taken together, the results of our study support the hypothesis that bacterial endotoxins upregulate enhanced mediators of osteoclastogenesis in resident cells found in the healthy peri-implant compartment and that the local synergistic action of cytokines secreted by such cells results in the genesis of resorptively active osteoclasts.


2017 ◽  
Vol 88 (8) ◽  
pp. 762-770 ◽  
Author(s):  
Carlo Ercoli ◽  
Georges Jammal ◽  
Madeline Buyers ◽  
Alexandra Athanasiou Tsigarida ◽  
Konstantinos Michail Chochlidakis ◽  
...  

2021 ◽  
Vol 31 (3) ◽  
pp. 201-205
Author(s):  
Abdulla Varoneckas ◽  
Rokas Poška ◽  
Rokas Gelažius

Relevance of the problem. Over the years, dental implant placement has proven to be a routine and reliable procedure. Osteotomy site preparation has a significant impact on implantation success rate. Surgery using piezosurgery is used as an alternative method for osteotomy. Piezosurgery concept has proven to reduce mechanical and thermal tissue trauma. Aim. Compare clinical differences between piezosurgery (PS) and standard drilling (SD) in dental implantation. Materials and methods: A systematic review was based on the PRISMA guidelines. Search was carried out in electronic databases. Researched studies were observational, published less than 10 years ago, in English. Studies that involved immediate implantation or bone augmentation were excluded, as well as patients with metabolic bone diseases or using bisphosphonate therapy. Results. Regarding crestal bone loss, 3 out of 4 articles stated that there were no statistically significant differences between standard drilling and piezosurgery group. One study, however, disclosed that piezosurgery showed better preservation of crestal bone after 3 years. 5 studies measured primary stability and did not find any significant differences. Secondary stability, however, was significantly higher in the piezosurgery group at 2nd and 3rd months. 5 studies that measured the duration of surgeries reported longer osteotomy time for the piezosurgery group. Pain level on VAS scale, oppositely, was lower in piezosurgery group. Conclusion. In conclusion, piezosurgery can be considered as an alternative to standard drilling. In terms of success rate, crestal bone loss and primary stability, results seem to be very similar in both groups. Piezosurgery, although, seems to be advantageous achieving secondary stability and maintaining lower pain levels during the healing process.


Sign in / Sign up

Export Citation Format

Share Document