Shear bond strength of tooth-colored indirect restorations bonded to mid-coronal and cervical dentin.
To investigate the bonding of tooth-colored indirect restorations to cervical dentin, shear bond strengths of bonded resin inlays to cervical dentin and mid-coronal dentin were investigated and compared. Indirectly fabricated composite inlays (Estenia) were cemented with a dual-cured resin cement (Panavia Fluoro Cement II) to either cervical or mid-coronal dentin. Resin cement was cured with or without light irradiation for 20 seconds. After 24-hour or one-week storage, the bonded inlays were subjected to a micro-shear bond test. The light-cure method showed significantly higher bond strengths to both dentin regions compared with the self-cure method. Further, significant improvement in bonding after one-week storage was found in the case of light-cure method rather than the self-cure method. Although the cervical dentin tended to show lower bond strength than mid-coronal dentin, significant difference between the two dentin regions was only found when the resin cement was light-cured and stored for only one day.
Shimada
Yasushi
Y
Cariology and Operative Dentistry, Department of Restorative Sciences, Graduate School, Tokyo Medical and Dental University, Japan. shimada.ope@tmd.ac.jp
Sattabanasuk
Vanthana
V
Sadr
Alireza
A
Yuan
Yang
Y
He
Zhengdi
Z
Tagami
Junji
J
D000704:Analysis of Variance; D001840:Dental Bonding / Q000379:methods*; D019232:Dental Restoration Failure; D017220:Dentin-Bonding Agents / Q000737:chemistry; D006801:Humans; D007284:Inlays / Q000379:methods*; D033081:Shear Strength; D018709:Statistics, Nonparametric
D017220:Dentin-Bonding Agents