title: Effect of different adhesive strategies on the post-operative sensitivity of class I composite restorations.
abstract: OBJECTIVE
  To evaluate the post-operative sensitivity of occlusal restorations using different dentin adhesives performed by an undergraduate and a post-doctorate dentist.
  
  
  METHODS
  One hundred and eighty-eight molar occlusal restorations were placed in 39 patients (ages between 18 and 30) using 3 different kind of adhesive systems; Optibond FL (OBF), Clearfil Protect Bond (CPB), and iBond (IB) by a post-doctorate dentist or a fifth-year dental student according to the manufacturers' instructions. Post-operative sensitivity to cold and air was evaluated using a Visual Analog Scale (VAS) after 24 hours, 30, 90, and 180 days. Data were analyzed using the Mann-Whitney U and Friedman tests (P < 0.05).
  
  
  RESULTS
  Post-operative sensitivity scores for OBF and CPB were higher for the dental student (P < 0.05), while IB scores did not differ statistical significantly according to the operator (P > 0.05).
  
  
  CONCLUSIONS
  Operator skill and experience appears to play a role in determining the outcome of post-operative sensitivity of multi-step adhesive systems although the post-operative sensitivity was low. It is suggested that the less experienced clinicians (rather than experienced clinicians) should better use the self-etching dentin bonding systems with reduced application steps to minimize the potential risk of post-operative sensitivity of dental adhesives.
authors: Department of Operative Dentistry, Faculty of Dentistry, Istanbul University, Istanbul, Turkiye.
authors: Hande Sar
authors: HS
authors: Sancakli
authors: Department of Operative Dentistry, Faculty of Dentistry, Istanbul University, Istanbul, Turkiye.
authors: Esra
authors: E
authors: Yildiz
authors: Department of Operative Dentistry, Faculty of Dentistry, Bezmialem Vakif University, Istanbul, Turkiye.
authors: Isil
authors: I
authors: Bayrak
authors: Department of Biostatistics and Medical Informatics, Faculty of Medicine, Istanbul, Turkiye.
authors: Sevda
authors: S
authors: Ozel
keywords: Class I composite restorations; dentin bonding systems; operator skill; post-operative sensitivity