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The International Journal of Prosthodontics



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Int J Prosthodont 32 (2019), No. 4     15. July 2019
Int J Prosthodont 32 (2019), No. 4  (15.07.2019)

Page 358-360, doi:10.11607/ijp.6166, PubMed:31283815

Titanium and Zirconia External Connection Abutments Produced Following a Digital Protocol: An In Vitro Study
Vigolo, Paolo / Fonzi, Fulvio / Zaccaria, Massimiliano / Mutinelli, Sabrina
Purpose: To assess the quality of precision at the implant-abutment interface of single-tooth restorations with titanium and zirconia abutments with hexagonal external connections produced using a digital protocol.
Materials and Methods: A total of 20 abutments were produced with commercially pure titanium, and 20 abutments with zirconia, both following a necessary digital protocol. Rotational freedom of all the abutments was assessed. All data were analyzed according to procedures established by software package STATA 14.2.
Results: No significant differences relative to rotational freedom emerged between the two groups.
Conclusion: This study showed that both types of abutments constantly demonstrated approximately 2 degrees of rotational freedom between implant and abutment where the hexagonal external connection was concerned.
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