Effect of aluminum chloride hemostatic agent on microleakage of class V  composite resin restorations bonded with all-in-one adhesive.
OBJECTIVE
Since hemostatic agents can induce changes on enamel and dentin surfaces and influence composite resin adhesion, the aim of the present study was to evaluate the effect of the aluminum chloride hemostatic agent on the gingival margin microleakage of class V (Cl V) composite resin restorations bonded with all-in-one adhesive.


METHODS
Cl V cavities were prepared on the buccal surfaces of 60 sound bovine permanent incisors. Gingival margins of the cavities were placed 1.5 mm apical to the cemento-enamel junction (CEJ). The teeth were randomly divided into two groups of 30. In group 1, the cavities were restored without the application of a hemostatic agent; in group 2, the cavities were restored after the application of the hemostatic agent. In both groups all-in-one adhesive and Z250 composite resin were used to restore the cavities with the incremental technique. After finishing and polishing, the samples underwent a thermocycling procedure, followed by immersion in 2% basic fuschin solution for 24 hours. The samples were sectioned and gingival microleakage was evaluated under a stereomicroscope. The non-parametric Mann-Whitney U test was used to compare microleakage between the two groups. Statistical significance was defined at P<0.05.


RESULTS
A statistically significant difference was observed in microleakage between the two groups (P<0.001).


CONCLUSIONS
Contamination of Cl V composite resin restorations bonded with all-in-one adhesive with aluminum chloride hemostatic agent significantly increases restoration gingival margin microleakage.
Department of Operative Dentistry, Tabriz University of Medical Sciences, School of Dentistry, Gholghasht Street, 5166614713, Tabriz, Iran.
Narmin
N
Mohammadi
Soodabeh
S
Kimyai
Mahmood
M
Bahari
Fatemeh
F
Pournaghi-Azar
Aysan
A
Mozafari
D000077410:Aluminum Chloride; D017607:Aluminum Compounds / Q000009:adverse effects*; D000818:Animals; D001252:Astringents / Q000009:adverse effects*; D002417:Cattle; D002712:Chlorides / Q000009:adverse effects*; D003188:Composite Resins; D001840:Dental Bonding; D003738:Dental Cements; D003763:Dental Leakage / Q000139:chemically induced*; D066298:In Vitro Techniques
D017607:Aluminum Compounds; D001252:Astringents; D002712:Chlorides; D003188:Composite Resins; D003738:Dental Cements; D000077410:Aluminum Chloride