This study confirms the likelihood that remnants of high-viscosity glass-ionomer sealant material are retained and block the deeper parts of pits and fissures even after the sealant appears to have disappeared clinical ly , exercising their carious lesion preventive effect
OBJECTIVES Resin composite sealants are retained longer than low-viscosity glass-ionomer sealants .
Nevertheless , a systematic review showed that there is no evidence that resin composite sealants are superior to low-viscosity glass-ionomers in preventing dentine carious lesion development .
This case study aim ed to investigate reasons for this .
Comparison of retentive qualities of two glass-ionomer cements used as fissure sealants.
Ideally , in view of rational practice management , the same GIC material may be used as a restorative material as well as a sealant material . The aim of this study is to compare the retention rates of a GIC design ed as sealant material ( Fuji Type IIIR , ) and a glass-ionomer restorative material ( Fuji Type IXR ) . In a clinical trial using a split mouth design , 104 children ( mean age 10.4 years , s.d . 1.2 ) of the Centre of Youth Dental Health Paramaribo ( Surinam ) received 208 sealants , 104 per material . The sealants were placed in upper or lower first or second molars by dental auxiliaries . Moisture control was achieved by cotton rolls . After four and nine months the retention of the sealants was checked clinical ly . For the evaluation at both times 99 molar pairs were available . After four months 46 percent of the Fuji IIIR and 72 percent of the Fuji IXR sealants showed complete retention . After nine months these percentages were 15 percent and 52 percent , respectively . In view of the study design , Relative Risks ( RR ) , and their 95 percent confidence intervals , were calculated . Converted to chance to total absence , the chance to absence of the material for Fuji IX was about 60 percent less than that for Fuji III ( four months RR = .44 ( .25 - .80 ) and nine months RR = .42 ( .39 - .45 ) ) . In conclusion the GIC restorative material showed to be more retentive then the GIC sealant material
This study confirms the likelihood that remnants of high-viscosity glass-ionomer sealant material are retained and block the deeper parts of pits and fissures even after the sealant appears to have disappeared clinical ly , exercising their carious lesion preventive effect
OBJECTIVES Resin composite sealants are retained longer than low-viscosity glass-ionomer sealants .
Nevertheless , a systematic review showed that there is no evidence that resin composite sealants are superior to low-viscosity glass-ionomers in preventing dentine carious lesion development .
This case study aim ed to investigate reasons for this .