title: Effect of dentin sealers on postoperative sensitivity of complete cast crowns cemented with glass ionomer cement.
abstract: OBJECTIVE
  The purpose of this study was to clinically evaluate the effects of pretreatments with copal/ether varnish and dentin bonding system on postoperative sensitivity of complete cast crowns cemented with glass ionomer cement.
  
  
  METHODS
  Three posterior teeth with no pain symptoms were selected from each of 17 patients, totaling 51 teeth, for which a crown was indicated. Rexillium III complete cast crowns were prepared using conventional laboratory techniques. For each patient, the first tooth, which served as the control, received only glass ionomer cement (Ketac-Cem). Copal/ether varnish (Bosworth Copaliner) was applied to the second tooth preparation prior to cementation. Dentin bonding agent (OptiBond Solo Plus) was used on the third tooth before cementation. Sensitivity to different stimuli (cold, heat) was assessed at 7 days, 1 month, and 6 months following restorative procedures by questionnaire.
  
  
  RESULTS
  There were no statistically significant differences between the three groups regarding applied stimulus and day of the study (p > 0.05). No statistically significant differences were found between the postoperative sensitivity responses from 7 days to 1 month, and from 1 month to 6 months (p > 0.05).
  
  
  CONCLUSIONS
  Postoperative sensitivity resulting from glass ionomer cement with complete cast crowns cannot be completely eliminated with the prior use of a cavity varnish or bonding agent.
authors.affiliation: Department of Oral and Maxillofacial Rehabilitation, King Abdulaziz University, Jeddah, Saudi Arabia. abdulmag_99@yahoo.com
authors.forename: Abdulhamaid A
authors.initials: AA
authors.lastname: Maghrabi
mesh_terms: D000293:Adolescent; D000328:Adult; D002484:Cementation / Q000379:methods*; D002858:Chromium Alloys / Q000737:chemistry; D003442:Crowns; D003722:Dental Alloys / Q000737:chemistry; D045662:Dental Etching / Q000379:methods; D017267:Dental Prosthesis Design; D003807:Dentin Sensitivity / Q000517:prevention & control*; D017220:Dentin-Bonding Agents / Q000737:chemistry*; D005500:Follow-Up Studies; D005899:Glass Ionomer Cements / Q000737:chemistry*; D006801:Humans; D008277:Magnesium Oxide / Q000737:chemistry; D008875:Middle Aged; D010147:Pain Measurement; D011076:Polycarboxylate Cement / Q000737:chemistry; D019279:Resin Cements / Q000737:chemistry; D012116:Resins, Plant / Q000737:chemistry*; D013499:Surface Properties; D011795:Surveys and Questionnaires; D019246:Tooth Preparation / Q000295:instrumentation / Q000379:methods; D055815:Young Adult; D015034:Zinc Oxide / Q000737:chemistry
chemical_list: D002858:Chromium Alloys; D003722:Dental Alloys; D017220:Dentin-Bonding Agents; D005899:Glass Ionomer Cements; C451600:OptiBond Solo Plus; D011076:Polycarboxylate Cement; D019279:Resin Cements; D012116:Resins, Plant; D008277:Magnesium Oxide; C036884:Rexillium III; C040235:Ketac-cem; C041292:copal rosin varnish; D015034:Zinc Oxide