Effect of bonding systems on post-operative sensitivity from posterior composites.
OBJECTIVE
To compare post-operative sensitivity from posterior composites lined with bonding systems that utilize either a self-etching primer or phosphoric acid conditioner.


METHODS
Occlusal cavities on homologous contralateral posterior teeth in 28 selected subjects were lined with either One-Step Plus (a bonding system that utilizes phosphoric acid conditioner) or Clearfil SE Bond with a self-etching primer, and then restored with a hybrid resin composite. Post-operative sensitivity was assessed subjectively by asking the patient to classify pain from the restored tooth into none, mild or severe; and objectively by measuring the time it took for the patient to feel cold sensation when standardized ice stick was placed against the mid-buccal surface of the tooth.


RESULTS
Subjective assessment showed that post-operative sensitivity was mild with either of the bonding systems; and marginal homogeneity test showed no statistically significant difference in the prevalence of post-operative sensitivity (P> 0.05), although there was a trend towards decreasing sensitivity with Clearfil SE Bond as post-operative period increased (P= 0.027). In the objective assessment, repeated measures of ANOVA showed that cold response measurements increased significantly with postoperative period only in the teeth lined with Clearfil SE Bond (P< 0.05), indicating decreasing post-operative sensitivity. However, paired t-test showed no significant difference between the cold response measurements obtained for the two bonding systems (P> 0.05).
Akpata
Enosakhare S
ES
Department of Restorative Sciences, Faculty of Dentistry, Kuwait University, Safat. akpata@hsc.edu.kw
Behbehani
Jawad
J
D000134:Acid Etching, Dental / Q000379:methods; D000328:Adult; D000704:Analysis of Variance; D001641:Bicuspid; D003188:Composite Resins / Q000009:adverse effects*; D003736:Dental Cavity Lining; D003737:Dental Cavity Preparation / Q000009:adverse effects*; D003793:Dental Restoration, Permanent / Q000009:adverse effects / Q000379:methods; D003807:Dentin Sensitivity / Q000209:etiology / Q000517:prevention & control*; D017220:Dentin-Bonding Agents; D006801:Humans; D008875:Middle Aged; D008963:Molar; D019279:Resin Cements
C438313:Clearfil SE Bond; D003188:Composite Resins; D017220:Dentin-Bonding Agents; C099128:Prodigy; D019279:Resin Cements