A comparative clinical study on efficacy of nanofilled resin-modified and conventional glass ionomer pit and fissure sealant in molar tooth

Dilruba Khatun,Md Abdul Hannan Sheikh,Md Joynal Abdin,Md Shamsul Alam,Mozammal Hossain

doi:10.3329/bsmmuj.v11i4.38447

Abstract

The present study compared the clinical performance of nanoparticulated resin modified glass ionomer and conventional glass ionomer pit and fissure sealant on permanent molars. Fifty patient having bilateral occlusal grooves in pits and fissures of the occlusal surface were included for this study where 50 teeth were treated with nanopaticulated resin modified and the remaining 50 teeth were subjected to conventional glass ionomer sealants. The color match, retention and marginal adaptation were assessed at 3, 6 and 12 months and statistical analysis was performed by Chi-square test to assess the difference between the two sealants; a values of <0.05 was considered as statistically significant. The results showed that although there were no significant differences between two sealants at baseline and 3 months observation period but nanoparticulated resin modified glass ionomer sealants showed better clinical performance than that of conventional glass ionomer sealants at 12 months and the differences between two sealants were statistically significant (p<0.05). It can be concluded that naqnoparticulated resin modified glass ionomer sealant exhibited better color stability, more retention, and better marginal adaptation than those of conventional glass ionomer sealants at 12 months observation period.

Highlights

Pit and fissure of the human molar tooth are considered as caries prone dental sites
Conventional glass ionomer was used as a sealant of pit and fissure of erupted permanent molar tooth.[7,8,9]
Resin-based sealant which is composed of acrylic monomer associated with filler or fluoride, and is considered to have better clinical performance than that of conventional glass ionomer cement.[12]

Summary

Introduction

Pit and fissure of the human molar tooth are considered as caries prone dental sites. Application of pit and fissure sealants such as resin-based and glass ionomer sealants is considered as an effective method to decrease dental caries as they create a thin barrier on the pit and fissure and protects the surface from caries initiation.[6] Conventional glass ionomer was used as a sealant of pit and fissure of erupted permanent molar tooth.[7,8,9] It is biocompatible with the pulpal tissue, and it has the ability to chemically bond to the tooth tissue and it has almost similar co-efficient of thermal expansion to that of tooth structure and ability to fluoride release.[10] its low physical and mechanical strength, moisture sensitivity during the initial setting time, poor wear resistance, loss of anatomic form or marginal adaptation limit their use in load bearing areas.[11] On the other hand, resin-based sealant which is composed of acrylic (methacrylate) monomer associated with filler or fluoride, and is considered to have better clinical performance than that of conventional glass ionomer cement.[12] Low-viscosity flowable composites could be used as fissure sealant.[13,14]

Objectives

Results

Conclusion