Short resin-posts bonding to primary dentin. Microleakage and micro-morphological in vitro study

Area of Science:

• Dentistry
• Dental Materials Science
• Pediatric Dentistry

Background:

• Dental bonding agents are crucial for adhering restorative materials to tooth structure.
• Resin posts are used to restore primary teeth, requiring effective adhesion to dentin.
• Evaluating bonding systems in primary teeth is essential for pediatric restorative success.

Purpose of the Study:

• To compare the adhesion of Single Bond and Adper Prompt L Pop bonding systems.
• To assess the resin-dentin inter-diffusion zone (RDIZ) and resin tag formation.
• To evaluate microleakage in bonded resin posts in primary teeth.

Main Methods:

• In vitro evaluation of two dental bonding systems: Single Bond and Adper Prompt L Pop.
• Application of systems to short resin posts in primary teeth root dentin.
• Statistical analysis using Mann Whitney test to compare material performance.

Main Results:

• No statistically significant difference in adhesion between Single Bond and Adper Prompt L Pop (p=0.75).
• Single Bond exhibited a wider resin-dentin inter-diffusion zone (RDIZ) compared to Adper Prompt L Pop.
• Both bonding systems demonstrated long resin tags and exhibited microleakage.

Conclusions:

• Both Single Bond and Adper Prompt L Pop show comparable adhesion to primary teeth root dentin.
• Single Bond may offer a more robust adhesive interface, but microleakage remains a concern for both.
• Further research is needed to optimize bonding systems for pediatric dental restorations.