Abstract
Background/Aim: Sealing ability and adhesion to enamel of fissure sealants are quite critical in prevention of dental caries. The objective of the present study was to assess the marginal microleakage of different material-based pit and fissures with non-invasive and invasive techniques by using the Micro-CT method. Material and Methods: 30 extracted human permanent molars were randomly assigned to three sealant groups (n=10) as resin-based ClinPro, giomer-based BeautiSealant, and glass ionomer-based Fuji IX-GP. Half of each group was randomly divided into two parts as non-invasive and invasive techniques. The volumetric analysis of marginal microleakage between the enamel-material interface was performed by using Micro-CT. The results were analyzed with Student's t, One-Way ANOVA, Tukey and Games-Howell tests. Statistical significance level was considered as 0.05. Results: In non-invasive technique, Fuji IX-GP showed statistically significantly lower marginal microleakage values than Clinpro (p=0.022). Other comparisons were not significant (p>0.05). However, in invasive technique, microleakage values both of Fuji IX-GP and BeautiSealant were significantly lower than Clinpro (p<0.001, p<0.001). Besides, regardless of the sealant material, the invasive technique showed significantly superior results than non-invasive technique regarding marginal microleakage. Conclusions: Considering the clinical conditions, it was concluded that glass ionomer-based Fuji IX-GP and giomer-based BeautiSealant could be used as alternative to resin based sealants. Additionally, invasive technique (fissure preparation) can be recommended to reduce marginal microleakage.
Highlights
Fissure caries in children is the most common type of caries caused by deep pits and fissures[1,2]
The concept of minimally invasive dentistry, which is more conservative in caries management and treatment approaches, has been developed and the use of caries-preventive materials
Various approaches are used in preventing occlusal caries, dental caries is still frequently encountered among oral health problems
Summary
Fissure caries in children is the most common type of caries caused by deep pits and fissures[1,2]. The deeper pits and fissures on the occlusal surfaces has become a risk factor for the development of dental caries due to unfavorable morphology and difficulties in cleaning. Deep grooves on pits and fissures are areas for the accumulation of debris, plaque, and microorganisms. Complex morphology makes pits and fissures inconvenient for access to saliva compounds and reduces the preventive effects of fluoride applications[1,2]. One of these preventive applications, prevent or slow down the development of dental caries by acting as a barrier between the deep occlusal grooves and the oral flora, food debris, and acid-producing microorganisms. Sealants are the most appropriate preventive method for non-cavitated caries lesions involving pits and fissures on the tooth surfaces. The fluoride-releasing of some fissure sealants potentiates their anti-carious effects[2,4,5]
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