Fernandes, Gustavo Vicentis de OliveiraRomanos, GeorgeFernandes, Paulo Rafael Esteves2021-09-012021-09-012021-07-232021http://hdl.handle.net/10400.14/34577Objectives: The objective of this systematic review was to compare within the literature if titanium and titanium-zirconium implants show differences, when evaluated soft and hard tissue, compared to zirconia implants. Material and methods: The searches were electronically performed (PubMed and Web of Science) and by hand, in October 2020, to identify randomized controlled trials comparing either zirconia implants with titanium or titaniumzirconia implants. The focused question was determined according to PICOT strategy. Results: A total of 7 studies were included from a total of 202 articles initially found, which 4 of them were duplicates and 198 titles were screened and 191 of them excluded. The follow-up periods ranged from 12 months to 80 months and the mean age from 43.3 to 65.8. The survival rate for titanium implants ranged from 92.6% to 100% and for titanium-zirconium implants from 95.8% to 100%, whereas zirconia implants ranged from 87.5% to 91.25%. The mean marginal bone loss for titanium implants ranged from -1.17mm to -0.125mm, for titaniumzirconium implants from -0.6mm to -0.32mm, and for zirconia implants from - 0.25mm to -1.38mm. Regarding mucositis and peri-implantitis, the studies showed little incidence. For bleeding on probing, it was evaluated for zirconia implants a 16.43%, while for titanium implants ranged between 10% and 20% and for titanium-zirconium implants 10% to 13.8%. Probing-in-depth for titanium implants ranged from 1.6mm to 3.05mm, for zirconia implants ranged from 2.21mm to 2.6mm and for titanium-zirconium evaluated probing in depth recording 3.12mm. Regarding the diameters of implants, all types were used (narrow, regular, and wide). Conclusion: All three types of implants showed similar soft and hard tissue response and behavior, except for the survival rate involving the zirconia implants, which had the lowest value.engImplantsZirconiaTitaniumTitanium-zirconiumSurvival rateBiological complicationsmaster thesis202751929