Sealing ability of new generation adhesive systems in primary teeth: an in vitro study.
OBJECTIVE
This study evaluated the sealing ability of different types of restorative-adhesive combinations on deciduous molars in vitro.


METHODS
Facial and lingual Class V cavities were prepared in 120 primary teeth. They were randomly divided into 8 groups of N= 15, in which different adhesives were used (XE=Xeno III; LP=Adper Prompt L Pop; IB=I Bond; SB=Scotch Bond 1; EP=Etch & Prime 3.0; AS=AdheSE; OB=Optibond Solo plus self-etch primer; CS=Clearfil SE Bond). All cavities were restored with composite Z 250. After thermocycling and immersion in 2% methylene blue, the dye penetration was evaluated under a microscope.


RESULTS
In enamel and in cementum: the best seals were obtained with XE and LP, followed by CS, AS, IB, OB, SB, and EP (P=.001). No significant differences were recorded in the microleakage degree between the cementum and the enamel margins (P=.40).


CONCLUSIONS
In this in vitro model, Xeno III and Adper Prompt L Pop provided the best seals both at the enamel and the cementum margins of Class V cavities in primary molars.
Atash
Ramin
R
Department of Adult and Pediatric Operative Dentistry, Faculty of Medecine, Free University of Brussels, Belgium. atash_ramin@yahoo.fr
Vanden Abbeele
Astrid
A
D016009:Chi-Square Distribution; D001840:Dental Bonding / Q000379:methods / Q000592:standards; D045662:Dental Etching / Q000379:methods; D003763:Dental Leakage / Q000517:prevention & control; D018772:Dental Marginal Adaptation / Q000592:standards*; D017220:Dentin-Bonding Agents / Q000592:standards*; D006801:Humans; D066298:In Vitro Techniques; D008689:Methacrylates / Q000592:standards*; D019279:Resin Cements / Q000592:standards*; D014094:Tooth, Deciduous
C103506:Bis-GMA, BPDM, HEMA dental-bonding resin; D017220:Dentin-Bonding Agents; C438310:Margin Bond; D008689:Methacrylates; D019279:Resin Cements