[P-34] Exploring the Mechanical Properties of New Universal Resin Cement: Resistance to Toothbrush Abrasion
[Abstract]
[Objectives]
The overall success of dental prosthetic restorations hinges on the robust mechanical properties of materials employed, including resin cement. This study aims to investigate the resistance of recently developed ZEN® Universal Cement (development code: DP-003) to toothbrush-induced abrasion.
[Methods]
ZEN® Universal Cement and four commercially available resin cements (A-D) were light-cured with a dental curing unit (J. Morita αLight V) for 180 seconds, followed by immersion in water at 37 °C for 24 hours to ensure complete curing. Subsequently, these cement samples underwent 50,000 cycles of simulated toothbrushing using a toothbrush simulator (Tokyo Giken K906) and toothpaste slurry. The surface roughness was then measured using a profilometer (KEYENCE KS-1100) and the arithmetic mean height was compared and statistically tested using analysis of variance (ANOVA) and Tukey's honest significant difference (HSD).
[Results & Discussion]
After 50,000 cycles of toothbrush abrasion, the cement samples exhibited varying degrees of abrasion. The statistical analysis unveiled that ZEN® Universal Cement exhibited the least abrasion, highlighting its exceptional robustness in terms of durability. This superior resistance of ZEN® Universal Cement to toothbrush abrasion holds promising implications for achieving long-lasting functional excellence in dental practices.
[Objectives]
The overall success of dental prosthetic restorations hinges on the robust mechanical properties of materials employed, including resin cement. This study aims to investigate the resistance of recently developed ZEN® Universal Cement (development code: DP-003) to toothbrush-induced abrasion.
[Methods]
ZEN® Universal Cement and four commercially available resin cements (A-D) were light-cured with a dental curing unit (J. Morita αLight V) for 180 seconds, followed by immersion in water at 37 °C for 24 hours to ensure complete curing. Subsequently, these cement samples underwent 50,000 cycles of simulated toothbrushing using a toothbrush simulator (Tokyo Giken K906) and toothpaste slurry. The surface roughness was then measured using a profilometer (KEYENCE KS-1100) and the arithmetic mean height was compared and statistically tested using analysis of variance (ANOVA) and Tukey's honest significant difference (HSD).
[Results & Discussion]
After 50,000 cycles of toothbrush abrasion, the cement samples exhibited varying degrees of abrasion. The statistical analysis unveiled that ZEN® Universal Cement exhibited the least abrasion, highlighting its exceptional robustness in terms of durability. This superior resistance of ZEN® Universal Cement to toothbrush abrasion holds promising implications for achieving long-lasting functional excellence in dental practices.