Short answer
When designing or selecting materials for ceramic inlays, designers can be confident in the comparable long-term bonding performance of both feldspar and zirconia ceramics with etch-and-bond and self-adhesive resin cements, even under simulated aging conditions.
- Field
- Final Production
- Source
- The Journal of Advanced Prosthodontics (2015)
- Method
- Experimental testing
- Sample
- 80 extracted molars (40 per ceramic type, further divided into subgroups)
- Evidence
- Strong effect
The choice between feldspar and zirconia-based ceramic inlays, and between etch-and-bond or self-adhesive resin cements, does not significantly impact their long-term bonding strength to dentin, even after simulated aging. This final production research insight is drawn from a 2015 study published in The Journal of Advanced Prosthodontics. Using Experimental testing with 80 extracted molars (40 per ceramic type, further divided into subgroups), researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing or selecting materials for ceramic inlays, designers can be confident in the comparable long-term bonding performance of both feldspar and zirconia ceramics with etch-and-bond and self-adhesive resin cements, even under simulated aging conditions.
Ceramic inlay bonding strength unaffected by simulated aging
The choice between feldspar and zirconia-based ceramic inlays, and between etch-and-bond or self-adhesive resin cements, does not significantly impact their long-term bonding strength to dentin, even after simulated aging.
The Journal of Advanced Prosthodontics · 2015
Key Findings
- 01No statistically significant differences in bond strength were found between feldspar and zirconia-based ceramic inlays.
- 02No significant differences in bond strength were observed between etch-and-bond and self-adhesive resin cements.
- 03Simulated aging had no significant adverse effect on the bond strength of any ceramic-cement combination.
- 04The dominant mode of bond failure shifted towards adhesive failure in aged inlays.
Application
Design takeaway
When designing or selecting materials for ceramic inlays, designers can be confident in the comparable long-term bonding performance of both feldspar and zirconia ceramics with etch-and-bond and self-adhesive resin cements, even under simulated aging conditions.
How to apply
When developing new ceramic inlay systems or selecting existing ones, focus on the overall material profile rather than solely on the ceramic type or cement, given their comparable bond durability.
Project actions
- 01When evaluating material choices for a design project, consider testing multiple viable options to confirm performance similarities or differences.
- 02Simulated aging tests can provide valuable insights into the long-term durability of material bonds.
Method & Evidence
Variables
Strengths & Limitations
Strengths
- +Inclusion of simulated aging provides insight into long-term performance.
- +Comparison of different ceramic types and cement strategies offers broad applicability.
- +Assessment of failure modes adds qualitative data to bond strength results.
Limitations
The simulated aging process might not fully capture the complex biological and chemical environment of the human mouth. The study focused on specific material brands, so results might vary with different products.
Reliability & validity
The study's use of statistical analysis (ANOVA, Tukey's) and a controlled experimental setup enhances its reliability. The validity is supported by the use of simulated aging and assessment of failure modes, though direct clinical extrapolation requires caution.
Think critically
Given that simulated aging did not significantly affect bond strength, to what extent can we extrapolate these findings to real-world clinical longevity, and what other factors (e.g., occlusal forces, oral hygiene, patient-specific factors) might influence long-term success?
Design Principles
"Material selection for dental inlays should consider a balance of performance, aesthetics, and cost, as key bonding metrics remain stable across common contemporary options."
This finding is crucial for designers and manufacturers of dental prosthetics and restorative materials. It suggests a degree of material and cement interchangeability for inlay applications, simplifying material selection and potentially reducing manufacturing complexity without compromising clinical performance.
What This Means for Your Design
It doesn't matter much which type of ceramic or glue you use for dental inlays; they all stick to teeth just as well, even after being put through tough conditions that mimic years of use.
How to use in your project
- 1.Reference this study when justifying the selection of specific ceramic materials or bonding agents for a dental restoration design, highlighting the comparable bond strength and durability.
- 2.Use the findings to support decisions about material longevity in your design proposal.
Add to My Project
Quick Cite
Paragraph starter
The research by Abdelfattah Khalil and Abdelaziz (2015) demonstrates that contemporary ceramic inlay materials, including feldspar and zirconia-based options, exhibit comparable bond strengths to dentin when used with either etch-and-bond or self-adhesive resin cements. Crucially, simulated aging did not significantly compromise these bond strengths, suggesting a robust and durable performance for these restorative materials in demanding oral conditions. This supports the selection of materials based on a broader range of criteria beyond just initial bond strength.
Source
The Journal of Advanced Prosthodontics
Bonding values of two contemporary ceramic inlay materials to dentin following simulated aging
journal · 2015
View sourceQuestions About This Research
- What does the research say about ceramic inlay bonding strength unaffected by simulated aging?
- When designing or selecting materials for ceramic inlays, designers can be confident in the comparable long-term bonding performance of both feldspar and zirconia ceramics with etch-and-bond and self-adhesive resin cements, even under simulated aging conditions. Evidence: The Journal of Advanced Prosthodontics (2015).
- Why does "Ceramic inlay bonding strength unaffected by simulated aging" matter for design?
- This finding is crucial for designers and manufacturers of dental prosthetics and restorative materials. It suggests a degree of material and cement interchangeability for inlay applications, simplifying material selection and potentially reducing manufacturing complexity without compromising clinical performance.
- How can designers apply this research?
- When designing or selecting materials for ceramic inlays, designers can be confident in the comparable long-term bonding performance of both feldspar and zirconia ceramics with etch-and-bond and self-adhesive resin cements, even under simulated aging conditions.
- What were the main findings?
- No statistically significant differences in bond strength were found between feldspar and zirconia-based ceramic inlays.. No significant differences in bond strength were observed between etch-and-bond and self-adhesive resin cements.. Simulated aging had no significant adverse effect on the bond strength of any ceramic-cement combination.. The dominant mode of bond failure shifted towards adhesive failure in aged inlays.
- What research method was used?
- Experimental testing with 80 extracted molars (40 per ceramic type, further divided into subgroups).
- How strong is the evidence?
- Evidence strength is rated Strong effect, based on a 2015 journal from The Journal of Advanced Prosthodontics.
- What should I do differently in my next project?
- When developing new ceramic inlay systems or selecting existing ones, focus on the overall material profile rather than solely on the ceramic type or cement, given their comparable bond durability.
- What are the limitations?
- The study used simulated aging, which may not perfectly replicate all aspects of in-vivo oral conditions. The specific materials tested represent only a subset of available options.