Title: 0226 - RCT on Immediate/ Delayed Dentin Sealing: Sensitivity and Patient Satisfaction


Carline van den Breemer (Presenter)
CTM UMCG Groningen

MMM Gresnigt, CTM UMCG Groningen
Mutlu Özcan, University of Zurich
W Kerdijk, University of Applied Sciences
MS Cune, CTM UMCG Groningen


Objectives: This prospective randomized clinical trial evaluated tooth sensitivity and patient satisfaction after the provision of indirect partial ceramic restorations bonded employing Immediate (IDS) or Delayed Dentin Sealing (DDS) on vital molar teeth through a within-subject comparison study.

Methods: Between December 2013 and May 2016, a total of 30 patients (13 women, 17 men; mean age: 54 years old) received two lithium disilicate ceramic (IPS-e.max press, Ivoclar Vivadent) partial restorations on vital first or second molar teeth (N=60). The two teeth randomly received either IDS (test group, n=30) or DDS (control group, n=30). Partial preparations were performed on all teeth and directly after tooth preparation, IDS was achieved using self-etch adhesive (Clearfil SE Primer and Adhesive, Kuraray) followed by flowable resin (Clearfil Majesty Flow, Kuraray). Partial ceramic restorations were bonded (Variolink Ultra, Ivoclar Vivadent) two weeks after preparation. The teeth were evaluated pre-operatively and 1 week, 3 and 12 months post-operatively, using a cold test and a questionnaire for perceived tooth sensitivity and patient satisfaction using a Visual Analogue Scale (VAS). Data were analyzed using McNemar, Chi-squared and Wilcoxon signed Rank tests (α=0.01 and 0.05).

Results: Tooth sensitivity reports of the patients did not show significant difference between pre-operative phase and at all other time points (p>0.05). There was also no significant difference between IDS and DDS (p>0.05) for all items in the questionnaire. Similarly, VAS scores were not significant between the IDS and DDS groups for all items in the questionnaire at all time points (p>0.05).

Conclusions: This clinical study could not confirm that IDS is more advantageous to DDS in terms of tooth sensitivity and patient satisfaction at one-year clinical service of partial ceramic restorations.

Student Presenter

Disclosure Statement:
The submitter must disclose the names of the organizations with which any author have a relationship, the nature of the relationship, and the clinical or research area involved. The following is submitted: The authors’ institutions supported this study. The authors declare that they have no conflicts of interest and that they did not have any commercial interest in any of the materials used in this study.