Long-Term Esthetic Outcome of Tissue-Level and Bone-Level Implants in the Anterior Maxilla

2018 ◽  
Vol 33 (4) ◽  
pp. 905-912 ◽  
Author(s):  
Carola Siebert ◽  
Dominik Rieder ◽  
Jochen Eggert ◽  
Manfred Wichmann ◽  
Siegfried Heckmann
Author(s):  
Rubén Agustín-Panadero ◽  
Irene Bermúdez-Mulet ◽  
Lucía Fernández-Estevan ◽  
María Fernanda Solá-Ruíz ◽  
Rocío Marco-Pitarch ◽  
...  

Introduction: The aim of this retrospective study was to analyze the radiographic peri-implant bone loss of bone level implants and tissue level implants with a convergent neck in screw-retained single crowns and in screw-retained fixed partial prostheses, after two years of functional loading. Materials and methods: The sample was divided into two groups according to their type: Group I: supracrestal implants with convergent transmucosal neck; Group II: crestal implants. In each group we distinguish two subgroups according to the type of prosthetic restoration: single crowns and a three-piece fixed partial prosthesis on two implants. To quantify bone loss, parallelized periapical radiographs were analyzed at the time of implant placement and after two years of functional load. Results: A total of 120 implants were placed in 53 patients. After statistical analysis it was observed that for each type of implant bone loss was 0.97 ± 0.91 mm for bone level and 0.31 ± 0.48 mm for tissue level. No significant differences were found regarding the type of prosthesis and the location (maxilla or mandible) of the implants. Conclusions: Tissue level implants with a convergent transepithelial neck exhibit less peri-implant bone loss than bone level implants regardless of the type of prosthesis.


2017 ◽  
Vol 213 ◽  
pp. 78-82 ◽  
Author(s):  
Jakub Hadzik ◽  
Ute Botzenhart ◽  
Maciej Krawiec ◽  
Tomasz Gedrange ◽  
Friedhelm Heinemann ◽  
...  

2011 ◽  
Vol 165 (3) ◽  
pp. 469-476 ◽  
Author(s):  
Audrey Doublier ◽  
Delphine Farlay ◽  
Mohamed T Khebbab ◽  
Xavier Jaurand ◽  
Pierre J Meunier ◽  
...  

ObjectiveTo investigate interactions between strontium (Sr) and bone mineral and its effects on mineralization in osteoporotic women treated long-term with Sr ranelate (SrRan).DesignIn this study, 34 iliac bone biopsies were analyzed after 2, 12, 24, 36, 48, and 60 months of treatment with SrRan.MethodsSr global distribution was analyzed by X-ray cartography and the percentage of bone area containing Sr was calculated in the bone samples. The focal distribution of Sr in all bone samples was investigated by X-ray microanalysis. The degree of mineralization was assessed by quantitative microradiography.ResultsAbsent from old bone formed before the beginning of treatment, Sr was exclusively present in bone formed during this treatment with a much higher focal Sr content in new bone structural units than in old ones. A progressive increase in the extent of areas containing Sr was observed during treatment. The focal bone Sr content in recently formed bone was constant over treatment. Secondary mineralization was maintained at a normal level during treatment.ConclusionThus, the quality of bone mineralization (density and heterogeneity at tissue level) was preserved after a long-term treatment with SrRan.


2019 ◽  
Vol 30 (S19) ◽  
pp. 496-496
Author(s):  
Balazs Feher ◽  
Reinhard Gruber ◽  
Andre Gahleitner ◽  
Ales Celar ◽  
Philipp Luciano Necsea ◽  
...  

2019 ◽  
Vol 8 (9) ◽  
pp. 1305 ◽  
Author(s):  
Simone Marconcini ◽  
Enrica Giammarinaro ◽  
Ugo Covani ◽  
Eitan Mijiritsky ◽  
Xavier Vela ◽  
...  

Background: Early peri-implant bone loss has been associated to long-term implant-prosthetic failure. Different technical, surgical, and prosthetic techniques have been introduced to enhance the clinical outcome of dental implants in terms of crestal bone preservation. The aim of the present cohort study was to observe the mean marginal bone level around two-part implants with gingivally tapered abutments one year after loading. Methods: Mean marginal bone levels and change were computed following radiological calibration and linear measurement on standardized radiographs. Results: Twenty patients who met the inclusion criterion of having at least one implant with the tapered prosthetic connection were included in the study. The cumulative implant success rate was 100%, the average bone loss was −0.18 ± 0.72 mm, with the final bone level sitting above the implant platform most of the time (+1.16 ± 0.91 mm). Conclusion: The results of this cohort study suggested that implants with tapered abutments perform successfully one year after loading and that they are associated with excellent marginal bone preservation, thus suggesting that implant-connection macro-geometry might have a crucial role in dictating peri-implant bone levels.


2020 ◽  
Vol 22 (1) ◽  
pp. 387-407
Author(s):  
Eric A. Nauman ◽  
Thomas M. Talavage ◽  
Paul S. Auerbach

Subconcussive head injury represents a pathophysiology that spans the expertise of both clinical neurology and biomechanical engineering. From both viewpoints, the terms injury and damage, presented without qualifiers, are synonymously taken to mean a tissue alteration that may be recoverable. For clinicians, concussion is evolving from a purely clinical diagnosis to one that requires objective measurement, to be achieved by biomedical engineers. Subconcussive injury is defined as subclinical pathophysiology in which underlying cellular- or tissue-level damage (here, to the brain) is not severe enough to present readily observable symptoms. Our concern is not whether an individual has a (clinically diagnosed) concussion, but rather, how much accumulative damage an individual can tolerate before they will experience long-term deficit(s) in neurological health. This concern leads us to look for the history of damage-inducing events, while evaluating multiple approaches for avoiding injury through reduction or prevention of the associated mechanically induced damage.


2016 ◽  
Vol 2016 ◽  
pp. 1-8 ◽  
Author(s):  
Hadi Antoun ◽  
Pierre Cherfane ◽  
Bouchra Sojod

Introduction. To evaluate outcomes of wide-diameter (6 mm) implants immediately provisionalized with cement-retained single crowns in posterior molar sites.Materials and Methods. Forty-eight consecutive patients received a total of 53 moderately rough-surface, 6 mm diameter implants in healed sites. All implants were immediately provisionalized with a cement-retained provisional crown. Final prosthesis with cement-retained porcelain fused to metal crowns was delivered 3–6 months later. Patients were followed up for 1 year. Outcome measures were implant failures and success rate, complications, marginal bone levels, bone level changes, papilla index, bleeding on probing, and inflammation.Results. One patient was lost to follow-up. At one year, the implant survival and success rate were 98.1%. The mean marginal bone loss after 1 year was −0.17±1.84 mm. Ideal papilla score was recorded at 83.8% of the sites. More than 95.6% of the sites showed no bleeding or inflammation. No procedure-related or device-related adverse events were reported.Conclusion. Wide-diameter (6 mm) implants can safely and successfully replace single posterior molars. Longer follow-up studies are necessary to evaluate the long-term success of these implants.


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