Microleakage in class V cavities prepared using conventional method versus Er:YAG laser restored with bulk fill glass hybrid material or flowable composite: An in vitro study.

Description :

Lasers are a minimally invasive restorative technique that is gaining importance in pediatric dentistry. The American Academy of Pediatric Dentistry (AAPD) recognizes the use of lasers as an alternative and complementary method for soft and hard tissue dental procedures in children. (3) The Er:YAG laser, known for its high affinity for hydroxyapatite and strong absorption by water, enhances micromechanical retention of restorative materials by creating smear layer-free cavity surfaces. Glass ionomer cements (GICs) and resin composites are widely used in pediatric restorations. (12–14) Modified GICs improve marginal adaptation and reduce microleakage, while nano-coatings enhance their sealing ability. (12) A common method to assess microleakage involves applying restorative materials to Class V cavities. (13,15) However, studies show controversial results regarding the influence of cavity preparation techniques on microleakage scores. (5) Additionally, the choice of restorative material significantly impacts microleakage outcomes in both laser-prepared and conventionally prepared cavities. (16,17) There is a lack of studies evaluating microleakage in Er:YAG laser cavity preparation in primary teeth using glass hybrid GIC and flowable composite, which was initially used for Class V restorations.

Titulaire :
ABOU CHEDID Jean-Claude

Contact USJ :
jeanclaude.abouchedid@usj.edu.lb

Chercheur(s) :
Dr Jean-Claude ABOU CHEDID

Projet présenté au CR, le : 01/02/2026

Projet achevé auprès du CR : 01/06/2026