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VOLUME 9 , ISSUE 7 ( November, 2008 ) > List of Articles


Clinical Evaluation of a Resin-based Desensitizing Agent and Self-etching Adhesive on Reduction of Postoperative Sensitivity of Amalgam Restorations

Majid Akbari, Marjaneh Ghavamnasiri, Hila Hajizadeh, Sara Abedini

Citation Information : Akbari M, Ghavamnasiri M, Hajizadeh H, Abedini S. Clinical Evaluation of a Resin-based Desensitizing Agent and Self-etching Adhesive on Reduction of Postoperative Sensitivity of Amalgam Restorations. J Contemp Dent Pract 2008; 9 (7):9-16.

DOI: 10.5005/jcdp-9-7-9

License: CC BY-NC 3.0

Published Online: 01-11-2008

Copyright Statement:  Copyright © 2008; The Author(s).



The aim of this randomized, double blind clinical trial was to compare three lining materials (Adper Prompt L-Pop, VivaSens, and Copalite) versus unlined restorations on postoperative cold sensitivity of class I amalgam restorations.

Methods and Materials

Potential subjects were screened for the presence of four initial class I carious lesions on posterior teeth. Each tooth was assigned to treatments according to a randomized block design. After cavity preparation, teeth were lined with either VivaSens, Adper Prompt L-Pop, or Copalite, and one tooth remained unlined and served as a control. The cavities were filled with high copper amalgam (Oralloy). The time taken for a subject to respond to a standardized cold stimulus (CRM) was recorded at baseline, 24 hours, one week, and one month after treatment. Participants filled out a self-report questionnaire at each time point. Data was gathered by analysis of variance (ANOVA) and Duncan Multiple Comparisons tests (α=0.05).


Twenty subjects participated in this study. Comparisons within each group found no significant reduction in mean CRM for the Adper Prompt L-Pop group (P>0.05), but a significant difference in mean CRM for the VivaSens group was observed at one week and one month intervals after restoration (P<0.05). Copalite and the unlined groups showed significant mean CRM reductions after one day (P<0.05). No significant differences between groups receiving Adper Prompt L-Pop and Copalite were found at any time point (P>0.05). VivaSens showed more cold sensitivity than Adper Prompt L-Pop at one week and one month recalls (P<0.05), while the most cold sensitivity was found in the unlined group.


Adper Prompt L-Pop and Copalite reduced postoperative sensitivity to cold more than VivaSens and unlined groups at all assessment time points, 24 hours, one week, and one-month post treatment. The subjects receiving Copalite, VivaSens, and unlined restorations experienced greater sensitivity to cold at one month compared to baseline, while subjects receiving the Adper Prompt L-Pop liner experienced no greater sensitivity to cold from baseline to one month.

Clinical Significance

Adper Prompt L-Pop as a liner under spherical high copper amalgam successfully reduced cold postoperative sensitivity.


Hajizadeh H, Akbari M, Ghavamnasiri M, Abedini S. Clinical Evaluation of a Resin-based Desensitizing Agent and Self-etching Adhesive on Reduction of Postoperative Sensitivity of Amalgam Restorations. J Contemp Dent Pract 2008 November; (9)7:009-016.

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