Comparison of using calcium hydroxide or a dentine primer for reducing dentinal pain following crown preparation: a randomized clinical trial with an observation time up to 30 months¹

Abstract

The purpose of this study was to evaluate effect of a calcium hydroxide suspension [Ca(OH)2] or glutaraldehyde based dentine primer (GDP) to reduce tooth sensitivity after full crown preparation. Thirty-six patients were treated with Ca(OH)(2) on one tooth and with GDP on another. Patients completed a questionnaire regarding sensitivity during crown preparation, when the not-anaesthetized abutments were irritated [cotton pellet (20 degrees C)]. The teeth were tested before (T(0)) and after using the desensitizer (T(1)), again after 7 days (T(2)), 6 months (T(3)) and 30 months (T(4)). The results were registered on a visual analogue scale [0 (no pain)-100 (severe pain)]. The changes of tooth sensitivity between different testing times were analysed. The median and the (interquartile range) for the different time intervals for Ca(OH)(2) were DeltaT(0)-T(1): 5 (6-17), DeltaT(0)-T(2): 17 (14-32), and for GDP, DeltaT(0)-T(1): 9 (7-18) DeltaT(0)-T(2): 18 (16-33), the decreases in sensitivity were lower for DeltaT(0)-T(1) than for DeltaT(0)-T(2) for both desensitizers (P < 0.001). There was no statistical difference (P > 0.05) between the agents (DeltaT(0)-T(1), DeltaT(0)-T(2), DeltaT(3)-T(4)). Both substances might be useful in reducing tooth sensitivity after crown preparation, but no differences in the efficacy were found when comparing the materials.

<I>In vitro </I>permeability of etch-and-rinse and self-etch adhesives used for immediate dentin sealing

“…Among the several treatment modalities available, the use of adhesive resins seem to provide a good-to-satisfactory level of seal, as verified under laboratory 13,14,20) and clinical 19) conditions. Apparently, variations in the permeability of adhesively sealed dentin depends largely on the adhesive system used 13,14,20) , with some proprietary adhesives being even less effective at sealing dentin than the original smear layer 13) .…”

“…Tooth preparation leads to an open dentin wound that should be sealed immediately 19) . Among the several treatment modalities available, the use of adhesive resins seem to provide a good-to-satisfactory level of seal, as verified under laboratory 13,14,20) and clinical 19) conditions.…”

Postoperative sensitivity in Class V composite restorations: Comparing soft start vs. constant curing modes of LED

“…[7] However using another method such as visual analogue scale would have been statistically more robust. [8] Nevertheless, we have used categories because it is sometimes claimed that patients have trouble following visual analogue scale. [9]…”

Clinician's Guide to the Diagnosis and Management of Tooth Sensitivity

“…Wolfart et al ( 2004 ) also compared a calcium hydroxide solution with a glutaraldehyde-based dentin primer in 36 patients undergoing crown preparations and evaluated over a 30-month period. Wolfart et al ( 2004 ) also compared a calcium hydroxide solution with a glutaraldehyde-based dentin primer in 36 patients undergoing crown preparations and evaluated over a 30-month period.…”