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.
Eronat
Nesrin
N
Department of Pedodontics, School of Dentistry, Ege University, Izmir, Turkey. eronatn@dent.ege.edu.tr
Bardakçi
Yener
Y
Sipahi
Makbule
M
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