• Imane Boujoual
• i. benazouz
• b.mbarki
• a.andoh

Introduction: Implant-supported fixed dental prosthesis is a standardized restoration method that is often used when an anterior single tooth is missing. However, when a titanium abutment is used in thin peri-implant mucosa in the anterior area, the metallic aspect can be visible through the mucosa. In order to offer an alternative solution to zirconia abutments and titanium abutments, the use of zirconia implant abutments connected to titanium base (Ti-base) has advanced to combine the advantages of the two kind of implant abutments. The aim of the present systematic review is to investigate the mechanical resistance of zirconia implant abutments connected to titanium bases and compare it to one-piece zirconia implant abutments and titanium implant abutments. Materials and Methods: The literature research has been performed using the PubMed electronic database, we selected relevant studies published in English between 2010 and 2020/ 05/ 01. According to the following keywords and Boolean equations: “Customized zirconia implant abutments” OR “customized hybrid implant abutment” OR “cad-cam zirconia implant abutment” OR “tow piece cad cam zirconia implant abutment” OR “zirconia with titanium base” AND “fracture” AND “resistance” NOT peri-implant. Results: The electronic research identified 54 articles. 35 articles has been excluded based on initial screening of the title and abstract, as they are not relevant to the objectives of the present review. After the application of the inclusion and exclusion criteria and the second screening based on the critical assessment of the full-texts, 13 articles has been included in the present study. The results of our research have allowed us to identify several elements that may be included in the study of the biomechanics of implant abutments. Thus, our review highlighted the contribution of titanium bases to improve the fracture resistance of customized zirconia abutments. Conclusion: Within the limitations of this study, it could be concluded that the use of the customized zirconia-titanium implant abutments connected to titanium bases allow avoiding the damage of the titanium interface of implant caused by the zirconia abutments. Further studies may be required with a greater standardization of the study design and testing methods. IndexTerms: implant abutment, hybrid abutment, Ti-base , zirconia-titanium abutment

IndexTerms: implant abutment, hybrid abutment, Ti-base , zirconia-titanium abutment

"The biomechanical contribution of customized hybrid implant abutment zirconia-titanium", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.7, Issue 12, page no.626-633, December-2020, Available :http://www.jetir.org/papers/JETIR2012283.pdf

"The biomechanical contribution of customized hybrid implant abutment zirconia-titanium", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.7, Issue 12, page no. pp626-633, December-2020, Available at : http://www.jetir.org/papers/JETIR2012283.pdf