Objectives: The purpose of this study was to compare the physical properties and features of an experimental self-adhesive cement to four market-leading products. Methods: The following self-adhesive cements were evaluated: Set Maxx™ Automix experimental cement (SDI Ltd) [SM], RelyX™ Unicem 2 Automix (3M ESPE) [U2], Maxcem Elite™ (Kerr Corp) [ME], Panavia™ SA Cement Universal (Kuraray Noritake Dental Inc) [PS] and Speedcem™ Plus (Ivoclar Vivadent AG) [SC].
Compressive strength tests were performed according to ISO9917-1:2017(Annex D), flexural strength according to ISO4049:2019 (Section 7.11), and shear bond strength (SBS) according to ISO/TS16506:2017 (Annex A). Cements were dispensed according to the manufacturers’ instructions. Five specimens were stored in deionised water at 37°C for 24h before testing with an Instron 5566 (compressive) or Instron 5942 (flexural/SBS). Results were evaluated using statistical analysis (ANOVA, Tukey’s, p<0.05). Mixing tip wastage was calculated from the total mass of 5 tips before/after dispensing. Results: Results are reported in Table 1. Conclusions: Properties of the self-adhesive cements tested are shown to be product specific. The flexural strength of Set Maxx™ in self-cure mode was significantly stronger than the other cements tested. Set Maxx™ performs as well or better than the market-leading cements tested when comparing the clinically relevant mechanical properties investigated in this study. This provides support for the use of Set Maxx in clinical situations.
Carey, Michelle
( SDI Ltd
, Bayswater
, Victoria
, Australia
)
Farrar, Paul
( SDI Ltd
, Bayswater
, Victoria
, Australia
)
Prentice, Leon
( SDI Ltd
, Bayswater
, Victoria
, Australia
)
Financial Interest Disclosure: Michelle Carey, SDI Limited, Nature of Relationship: Employee, Clinical or research area: Dental Materials Research
Paul Farrar, SDI Limited, Nature of Relationship: Employee, Clinical or research area: Dental Materials Research
Leon Prentice, SDI Limit