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Influence of Tooth Age On Intracanal Dentin Adhesion.
The Journal of Adhesive Dentistry
|April 30, 2025
Summary
Tooth age significantly impacts dentin adhesion of luting systems. Different cementation materials exhibit varying bond strengths, with no single strategy universally recommended for all age groups.
Area of Science:
- Dental Materials Science
- Adhesive Dentistry
- Biomaterials Engineering
Background:
- Root canal luting systems are crucial for post and core restorations.
- Dentin adhesion can be influenced by intrinsic tooth factors, including age.
- Understanding age-related changes in dentin is vital for optimizing luting cement efficacy.
Purpose of the Study:
- To evaluate the influence of tooth age on the dentin adhesion of various luting systems.
- To compare the bond strength and failure modes of different luting agents across age groups.
Main Methods:
- 180 root canals from three age groups (young, middle-aged, older) were used.
- Six different luting systems were tested, including Panavia 21 (P21), Core X Flow (CXF), Multilink Automix (ML), Panavia SA Cement Plus (PSA), Smart Cem 2 (SM2), and Speed CEM Plus (SCP).
- Intracanal bond strength was assessed using a pull-out test, and failure modes were analyzed.
Main Results:
- Significant differences in bond strength were observed among the luting systems.
- Panavia SA Cement Plus (PSA) and Smart Cem 2 (SM2) demonstrated significant differences in bond strength compared to other systems.
- Mixed failure modes were prevalent, particularly in younger teeth and with the Speed CEM Plus (SCP) system.
Conclusions:
- Current luting systems show significant variations in their adhesion to root canal dentin.
- No specific adhesive strategy is universally recommended for all tooth age groups.
- Further research is needed to develop age-optimized adhesive solutions for endodontic restorations.
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