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Effect of tooth age on bond strength to dentin
Marcelo Giannini1, Patrícia Chaves, Marcelo Tavares de Oliveira
1Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas.
Journal of Applied Oral Science : Revista FOB
|March 12, 2011
Summary
Tooth age does not significantly impact the tensile bond strength of the Prime & Bond NT adhesive system to dentin. This in vitro study found no statistical difference in bond strength across various human molar age groups.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Biomaterials Research
Background:
- Dentin aging may influence the mechanical properties of dental restorative materials.
- Understanding the effect of dentin age on adhesive bond strength is crucial for clinical longevity.
Purpose of the Study:
- To evaluate the in vitro effect of human tooth age on the tensile bond strength of the Prime & Bond NT adhesive system to dentin.
- To determine if dentin aging impacts the performance of a specific dental adhesive.
Main Methods:
- Human third molars from five age groups (17-63 years) were used.
- Dentin surfaces were prepared, and the Prime & Bond NT adhesive system was applied.
- Resin composite crowns were built, followed by micro-tensile bond strength testing after 24-hour water storage at 37°C.
Main Results:
- Mean tensile bond strengths (MPa) ranged from 21.42 to 35.66 across age groups.
- No statistically significant differences in tensile bond strength were observed among the different age groups (p > 0.05).
Conclusions:
- Dentin aging did not significantly affect the tensile bond strength of the Prime & Bond NT adhesive system in this in vitro study.
- The findings suggest that tooth age is not a critical factor for the bond performance of this adhesive system.
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