Effects of different preparation techniques on the microleakage of compomer and resin fissure sealants.
OBJECTIVE
The aim of this study was to compare the microleakage of a compomer and resin sealant in vitro using different surface preparation techniques.


METHODS
Microleakage of a compomer (Dyract Seal, DeTrey) and a resin sealant (Helioseal F, Vivadent) was investigated on 125 intact third molars. Materials and the surface preparation techniques were: Group 1--phosphoric acid (37%)+Helioseal F; Group 2--AlO2 air abrasion+Helioseal F; Group 3--nonrinse conditioner (NRC)+Prime&Bond+Dyract Seal; Group 4--phosphoric acid+Dyract Seal; Group 5--AlO2 air abrasion+Dyract Seal.


RESULTS
Pretreatment with phosphoric acid produced the lowest microleakage scores when applied with compomer and resin fissure sealants and there was no statistical difference (P>.05).


CONCLUSIONS
Compomer sealant used with a nonrinse conditioner (NRC) was not as successful as pretreatment with phosphoric acid etching, whereas AlO2 air abrasion pretreatment was ineffective in preventing microleakage in both sealants.
Department of Pedodontics, School of Dentistry, Ege University, Izmir, Turkey. eronatn@dent.ege.edu.tr
Nesrin
N
Eronat
Yener
Y
Bardakçi
Makbule
M
Sipahi
D000134:Acid Etching, Dental; D000537:Aluminum Oxide / Q000737:chemistry; D017438:Bisphenol A-Glycidyl Methacrylate / Q000737:chemistry; D020770:Compomers / Q000737:chemistry*; D003188:Composite Resins / Q000737:chemistry*; D001840:Dental Bonding; D045662:Dental Etching; D003763:Dental Leakage / Q000145:classification*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D006801:Humans; D008298:Maleates / Q000737:chemistry; D008422:Materials Testing; D010756:Phosphoric Acids / Q000737:chemistry; D010895:Pit and Fissure Sealants / Q000737:chemistry*; D011109:Polymethacrylic Acids / Q000737:chemistry; D016622:Silver Staining; D019246:Tooth Preparation / Q000379:methods*
D020770:Compomers; D003188:Composite Resins; D017220:Dentin-Bonding Agents; C088486:Dyract; D008298:Maleates; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants; D011109:Polymethacrylic Acids; C103500:Prime & Bond; C444699:non-rinse conditioner; C059908:Helioseal; D017438:Bisphenol A-Glycidyl Methacrylate; D000537:Aluminum Oxide