Effect of adhesive agent and fissure morphology on the in vitro microleakage and penetrability of pit and fissure sealants.
OBJECTIVE
To evaluate the effect of adhesive agents and fissure morphology on the microleakage and penetrability of pit and fissure sealants.


METHODS
Sealants used in this study included Aegis (Bosworth), conseal f (Southern Dental Industries), and Admira Seal (Voco). Adhesive agents included Optibond Solo Plus (sds/Kerr) and Clearfil S3Bond (Kuraray). Ninety extracted permanent molars were randomly assigned to 9 groups combining sealant and adhesive agent materials. A sealant and control group (phosphoric acid etch only) was also included. Dye penetration (microleakage), penetrability, and fissure morphology assessment was performed for the treatment groups through microscopic evaluation.


RESULTS
Significant (P = .003) differences in microleakage were exhibited, with the Aegis + control and Aegis + Optibond Solo Plus groups displaying less leakage, while significant (P = .03) differences were also noted between groups regarding penetrability. Fissure morphology was not a significant (P = .82) factor affecting microleakage; however, fissure type did significantly (P < .001) impact penetrability. No correlation was found between the extent of microleakage and penetrability.


CONCLUSIONS
Application of sealants using phosphoric acid as a conditioning agent revealed superior results, while the use of adhesives was found to be unnecessary.
Marks
Derek
D
Owens
Barry M
BM
Johnson
William W
WW
D000134:Acid Etching, Dental; D017609:Barium Compounds / Q000737:chemistry; D002516:Ceramics / Q000737:chemistry; D004396:Coloring Agents; D003738:Dental Cements / Q000737:chemistry; D003743:Dental Enamel / Q000473:pathology*; D003763:Dental Leakage / Q000145:classification*; D017220:Dentin-Bonding Agents / Q000737:chemistry; D005459:Fluorides / Q000737:chemistry; D006801:Humans; D008422:Materials Testing; D008689:Methacrylates / Q000737:chemistry; D063225:Organically Modified Ceramics; D010756:Phosphoric Acids / Q000737:chemistry; D010895:Pit and Fissure Sealants / Q000737:chemistry*; D019279:Resin Cements / Q000737:chemistry*; D012821:Silanes / Q000737:chemistry; D017640:Silicates / Q000737:chemistry; D012833:Siloxanes / Q000737:chemistry; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors
C528777:Aegis Ortho adhesive; D017609:Barium Compounds; C505694:Clearfil S3 Bond; D004396:Coloring Agents; D003738:Dental Cements; D017220:Dentin-Bonding Agents; D008689:Methacrylates; C451600:OptiBond Solo Plus; D063225:Organically Modified Ceramics; D010756:Phosphoric Acids; D010895:Pit and Fissure Sealants; D019279:Resin Cements; D012821:Silanes; D017640:Silicates; D012833:Siloxanes; C479084:admira; C030242:phosphoric acid; D005459:Fluorides