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Updated: Jul 1, 2026
07:42
Quasistatic Mechanical Testing for Computer-Aided Design and Manufacturing Occlusal Veneers Cemented to Milled Dentin Analog Material
Published on: December 20, 2024
[Factors influencing bonding fixed restorations]
Srpski Arhiv Za Celokupno Lekarstvo
|September 17, 2008
Summary
Preparation design significantly impacts dental restoration success. Shorter, wider preparations with less taper offer superior retention and resistance against dislodging forces, ensuring restoration longevity.
Area of Science:
- Dental Materials Science
- Biomechanical Engineering
- Prosthodontics
Context:
- Crown displacement is a common failure mode for dental restorations.
- Tooth preparation features are critical in resisting dislodging forces.
Purpose:
- To evaluate how different tooth preparation designs influence the retention and resistance of fixed dental restorations.
- To determine the optimal preparation geometry for enhanced restoration stability.
Summary:
- This study analyzed 64 stainless steel dies with varying dimensions and tapers, testing the tensile forces required to dislodge cemented caps.
- Greatest retention was observed with longer dies and smaller tapers (inverse relationship with convergence angle).
- Preparation length and diameter significantly affected resistance, while taper's effect on resistance was not statistically significant.
Impact:
- Findings provide crucial data for designing more retentive and resistant dental preparations.
- Optimized preparation designs can reduce restoration failure rates and improve patient outcomes.
- Informs clinical decisions regarding tooth preparation for fixed prosthodontics.
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