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VOLUME 18 , ISSUE 10 ( October, 2017 ) > List of Articles

RESEARCH ARTICLE

Comparison of Hypersensitivity in Metal Ceramic Crowns cemented with Zinc Phosphate and Self-adhesive Resin: A Prospective Study

Mirna Garhnayak, Angurbala Dhal, Lokanath Garhnayak, Aswini K Kar, Thatapudi Shankar

Citation Information : Garhnayak M, Dhal A, Garhnayak L, Kar AK, Shankar T. Comparison of Hypersensitivity in Metal Ceramic Crowns cemented with Zinc Phosphate and Self-adhesive Resin: A Prospective Study. J Contemp Dent Pract 2017; 18 (10):923-926.

DOI: 10.5005/jp-journals-10024-2150

Published Online: 00-10-2017

Copyright Statement:  Copyright © 2017; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Background

Luting agents used to fix artificial prostheses, such as fixed partial denture (FPD) to tooth are basically viscous in nature and show chemical reaction for fixation. Postcementation hypersensitivity is a frequent complaint of patients. The present study was conducted to compare postcementation hypersensitivity with zinc phosphate and self-adhesive resin in complete coverage crown.

Materials and methods

This study included 30 patients in which 60 porcelein fused to metal crowns was placed. Two metal crowns were placed in each patient in nonantagonistic contralateral quadrants. First crown was cemented with zinc phosphate cement, while the other was cemented with self-adhesive resin. Hypersensitivity was evaluated by visual analog scale (VAS) score and by clinical test. For clinical evaluation of sensitivity, hot and cold water was applied to the cervical margin of restoration for 5 seconds and response was recorded.

Results

This study consisted of 30 patients in which 60 crowns were given. There was no statistical difference in VAS score of mastication in zinc phosphate cement recorded at baseline, 1 week, 4 weeks, 6 months, 1 year, and 2 years (p > 0.05). Cold response also did not show a significant difference at six time points. Warm response showed slight decrease in subsequent time points but was nonsignificant (p > 0.05). Similarly, with selfadhesive resin cement, VAS score during mastication, hot and cold response was statistically nonsignificant (p > 0.05).

Conclusion

Postcementation hypersensitivity is a frequent complaint that patient may experience. However, we found no statistically significant difference in both cements tested.

Clinical significance

Postcementation hypersensitivity is an unpleasant sensation experienced by patients. This may affect the success of any prosthesis. Thus, selection of luting agent for cementation plays an important role to eliminate this symptom.

How to cite this article

Shankar T, Garhnayak M, Garhnayak L, Dhal A, Kar AK. Comparison of Hypersensitivity in Metal Ceramic Crowns cemented with Zinc Phosphate and Selfadhesive Resin: A Prospective Study. J Contemp Dent Pract 2017;18(10):923-926.


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