In-vitro comparative study of marginal leakage and penetration ability of moisture-tolerant and conventional resin-based pit and fissure sealants with different surface preparations
- Author:
Thavamalar Marimuthooa
;
Nor Atika Md Asfarb
;
Mariati Abd. Rahmanb
;
S. Nagarajan M.P. Sockalingam
- Publication Type:Journal Article
- Keywords:
Hydrophilic sealant;
marginal leakage;
penetration ability;
pit and fissure sealant
- MeSH:
Pit and Fissure Sealants;
Dental Caries;
Dental Materials
- From:Archives of Orofacial Sciences
2017;12(1):12-22
- CountryMalaysia
- Language:English
-
Abstract:
This in-vitro study aimed to evaluate and compare the marginal leakage and penetration ability of
a moisture-tolerant (Embrace WetBondTM) and a conventional (ClinproTM) resin-based sealants under three
different enamel surface preparations (acid etched, acid etched and saliva contaminated and bur
preparation and acid etched). One hundred and twenty extracted caries free human premolars teeth were
cleaned and randomly divided into six groups of equal numbers, according to the type of sealants used and
surface preparations. All the sealed teeth were subjected to thermocycling and immersed in a methylene
blue dye. Each tooth was then embedded into acrylic resin before it was sectioned into four sections per
tooth. Marginal leakage and unfilled surface area (indicating penetration depth of resin) were then
measured using an optical 3D measurement device (Alicona Infinite Focus®). Both sealants exhibited
comparable proportion of marginal leakage on acid etched only surfaces. Moisture-tolerant sealant showed
the least proportion of marginal leakage on bur prepared and etched surfaces. Presence of saliva has
detrimental effect on adhesion of both sealants. Nevertheless, depth of penetration of sealant into the
fissures is comparable with both sealant types irrespective of the surface preparations.
- Full text:P020170217299747263474.pdf
