Lack of effect of fluoride releasing resin modified glass ionomer restorations on the contacting surface of adjacent primary molars. a clinical prospective study.
OBJECTIVE
This prospective, split mouth control study was planned to clinically evaluate shown short-term caries protection of glass ionomer cement on tooth enamel placed in contact to it, as a result of fluoride release.


METHODS
The sample consisted of 83 children, aged 4-7 years, visiting a private practice during the years 1999 and 2000. All subjects met the following criteria: a Class II restoration was needed to a maxillary or mandibular primary molar on both sides of the mouth, the adjacent molars being radiographically diagnosed as sound or with caries in the relative proximal enamel only.


METHODS
A resin modified glass ionomer restoration (Vitremer, 3M) was placed at the test side chosen by chance, while an amalgam or composite restoration was placed at the control side. Lesion initiation or progression adjacent to each restoration was categorized in 5 stages radiographically.


METHODS
The non-parametric Marginal Homogeneity test for paired observations was used.


RESULTS
Differences between test and control were not statistically significant (p>0.1). Two years after restorations were placed bitewings were taken from 36 children (41 pairs of restorations). Uncontrolled brushing with fluoride dentifrice was reported. Mean fluoride treatments performed were 2.2, initial visit included. Lesion progression was: 14 pairs--no progression in either side; 9 pairs--equal progression by 1 stage in both sides; 9 pairs--progression by 1 stage at test side, no progression at control side; 6 pairs--progression by 1 stage at control side, no progression at test side; 3 pairs--various other combinations of scores.


CONCLUSIONS
Under these clinical conditions, fluoride release from Class II Vitremer restorations did not affect the rate of caries progression at the adjacent enamel of proximal primary teeth.
Department of Preventive Dentistry, Periodontology and Implant Biology, Dental School, Aristotle University of Thessaloniki, Greece. kotsanos@dent.auth.gr
N
N
Kotsanos
P
P
Dionysopoulos
D002327:Cariostatic Agents / Q000737:chemistry*; D002648:Child; D002675:Child, Preschool; D003188:Composite Resins / Q000737:chemistry; D003723:Dental Amalgam / Q000737:chemistry; D003731:Dental Caries / Q000000981:diagnostic imaging / Q000517:prevention & control*; D003743:Dental Enamel / Q000000981:diagnostic imaging / Q000473:pathology; D003793:Dental Restoration, Permanent; D018450:Disease Progression; D005459:Fluorides / Q000737:chemistry*; D005500:Follow-Up Studies; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008963:Molar / Q000000981:diagnostic imaging / Q000473:pathology*; D011446:Prospective Studies; D016300:Radiography, Bitewing; D019279:Resin Cements / Q000737:chemistry*; D016037:Single-Blind Method; D014094:Tooth, Deciduous / Q000473:pathology*
D002327:Cariostatic Agents; D003188:Composite Resins; D005899:Glass Ionomer Cements; D019279:Resin Cements; C084550:Vitremer; D003723:Dental Amalgam; D005459:Fluorides