This systematic review with meta- analysis found no evidence that either material was superior to the other in the prevention of dental caries .
Thus , both material s appear equally suitable for clinical application as a fissure sealant material
The purpose of this quantitative systematic review was to appraise the evidence on the  caries-preventive effect of glass ionomer cement ( GIC ) in relation to  resin-based fissure sealants .
A comparative study of fluoride-releasing composite resin and glass ionomer materials used as fissure sealants.
OBJECTIVES The objectives of the study were to investigate the clinical use of two fluoride-releasing fissure sealants and to study fluoride release under laboratory conditions . METHODS In the clinical part of the study the two material s , FluroShield and Baseline , were applied to matched contralateral caries-free first permanent molars in 86 children aged 7 - 8 years . In the laboratory study fluoride release from each material was measured using a model cavity system . RESULTS After 3 years FluroShield was intact on 70 % of teeth . Retention was significantly better on lower molars than upper molars . Baseline was lost from all except two teeth within 6 months . After 3 years , caries had affected four teeth sealed with FluroShield and 24 teeth sealed with Baseline ; this difference was highly significant . The laboratory study showed that FluroShield released twice as much fluoride over 9 days than did Baseline . Long term studies using FluroShield showed a small steady fluoride release over 6 months . CONCLUSIONS The conclusion of the study was that FluroShield was a much more effective fissure sealant than Baseline . The clinical performance of FluroShield was comparable to that of other inert composite resin sealants and superior to that of fluoride-releasing sealants used previously
This systematic review with meta- analysis found no evidence that either material was superior to the other in the prevention of dental caries .
Thus , both material s appear equally suitable for clinical application as a fissure sealant material
The purpose of this quantitative systematic review was to appraise the evidence on the  caries-preventive effect of glass ionomer cement ( GIC ) in relation to  resin-based fissure sealants .