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Published on: January 10, 2025
[Bonding performance evaluation between the new nano-hydroxyapatite composite resin and dentin].
Meng-meng Zhao1, Qing-shan Wang, Shuang Wang
1Department of Oral Medicine, Affiliated Hospital to Binzhou Medical College, Shandong Province, China. zhaomeng0524@126.com
Summary
The new nano-hydroxyapatite composite resin shows comparable shear bond strength to other dental materials. This novel material demonstrates effective bonding ability for clinical use in restorative dentistry.
Area of Science:
- Dental Materials Science
- Biomaterials Engineering
Background:
- Dental composites are widely used for tooth restoration.
- Evaluating new materials for improved bonding and durability is crucial.
Purpose of the Study:
- To assess the shear bond strength and bonding capacity of a novel nano-hydroxyapatite composite resin.
- To compare its performance against established dental materials.
Main Methods:
- Thirty-six molars were divided into three groups: nano-hydroxyapatite composite, composite resin Karisma, and glass ionomer cement.
- Shear bond strength was measured after thermal cycling.
- Fracture modes were analyzed under a stereo microscope.
Main Results:
- Average shear bond strengths were: nano-hydroxyapatite (11.23±4.61 N/mm²), Karisma (14.49±7.99 N/mm²), and glass ionomer (10.08±6.37 N/mm²).
- No statistically significant differences in shear bond strength were observed among the three groups (P>0.05).
- Fracture modes showed no significant differences across the groups.
Conclusions:
- The new nano-hydroxyapatite composite resin exhibits adequate bonding ability for dental applications.
- This material presents a viable option for clinical restorative therapy.
- Further research may explore long-term clinical performance and specific advantages.
