Research Article

Long-Term Bond Strength of Two Benzalkonium Chloride-Modified Adhesive Systems to Eroded Dentin

Table 3

Distribution of failure modes after shear bond strength testing (/group; BAC: benzalkonium chloride).

Adhesive system
Dentin
Cohesive failures in dentin (%)Adhesive failures at dentin/adhesive interface (%)Mixed failures (%)

After 24-hour storage

Adper Scotchbond 1XT without 1% BAC  
 Normal dentin12.562.525
Adper Scotchbond 1XT without 1% BAC  
 Artificially eroded dentin01000
Adper Scotchbond 1XT with 1% BAC  
 Normal dentin087.512.5
Adper Scotchbond 1XT with 1% BAC  
 Artificially eroded dentin087.512.5
OptiBond FL without 1% BAC  
 Normal dentin6.257518.75
OptiBond FL without 1% BAC  
 Artificially eroded dentin01000
OptiBond FL with 1% BAC  
 Normal dentin6.2587.56.25
OptiBond FL with 1% BAC  
 Artificially eroded dentin01000

After 1-year storage

Adper Scotchbond 1XT without 1% BAC  
 Normal dentin6.257518.75
Adper Scotchbond 1XT without 1% BAC  
 Artificially eroded dentin01000
Adper Scotchbond 1XT with 1% BAC  
 Normal dentin6.2593.750
Adper Scotchbond 1XT with 1% BAC  
 Artificially eroded dentin01000
OptiBond FL without 1% BAC  
 Normal dentin081.2518.75
OptiBond FL without 1% BAC  
 Artificially eroded dentin01000
OptiBond FL with 1% BAC  
 Normal dentin093.756.25
OptiBond FL with 1% BAC  
 Artificially eroded dentin01000