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BMC Oral Health

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Open Access 01-12-2022 | Computer Aided Design | Research

The influence of aging on the fracture load of milled monolithic crowns

Authors: Ceyda Güleç, Işıl Sarıkaya

Published in: BMC Oral Health | Issue 1/2022

Abstract

Background

This in-vitro study was conducted to assess the effect of aging on the fracture load of molar crowns fabricated with monolithic CAD/CAM materials.

Methods

The crown restorations were produced from Cerasmart, Vita Enamic, and IPS e.max CAD blocks. Aging was applied to the 10 samples each of monolithic CAD/CAM materials (n = 10). Dual-axis chewing simulator (50 N, 1.1 Hz, lateral movement: 1 mm, mouth opening: 2 mm, 1,200,000 cycles) and thermocycling (± 5–55 °C, 6000 cycles) were applied as an aging procedure. 10 samples each of monolithic CAD/CAM materials without aging (n = 10) were considered the control group. 6 tested groups were obtained. Then, all samples were evaluated in a universal testing machine to determine the fracture loading values’.

Results

There was not a statistically significant difference between the fracture load values before and after aging for all samples of Cerasmart, Vita Enamic, and IPS e.max CAD (p > 0.005). In a comparison of the monolithic materials together, a statistically significant difference was found between the fracture load values of IPS e.max CAD and Vita Enamic crowns before aging (p = 0.02). Also, Vita Enamic crowns (1978,71 ± 364,05 N) were found different from the IPS e.max CAD (p = 0.005) and Cerasmart crowns (p = 0.041) after aging.

Conclusions

Dynamic aging with 1.200.000 cycles was found to have no effect to fracture loading on milled Cerasmart, Vita Enamic, and IPS e.max CAD monolithic crowns.

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Title: The influence of aging on the fracture load of milled monolithic crowns
Authors: Ceyda Güleç
Işıl Sarıkaya
Publication date: 01-12-2022
Publisher: BioMed Central
Keywords: Computer Aided Design
Computer Aided Manufacturing
Published in: BMC Oral Health / Issue 1/2022
Electronic ISSN: 1472-6831
DOI: https://doi.org/10.1186/s12903-022-02529-z

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The influence of aging on the fracture load of milled monolithic crowns

Abstract

Background

Methods

Results

Conclusions

Keynote webinar | Spotlight on medication adherence

Springer Medicine

Abstract

Background

Methods

Results

Conclusions

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