Elsevier

Dental Abstracts

Volume 61, Issue 3, May–June 2016, Pages 154-155
Dental Abstracts

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To line or not to line

https://doi.org/10.1016/j.denabs.2016.02.039Get rights and content

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Background

With the development of new restorative materials and a reconsideration of the need to remove all carious dentin, doubts have been raised concerning the need for cavity liners to maintain pulp vitality. General practitioners tend to favor their use, however, perhaps fearing that adhesive restorations placed without a liner may compromise the health of the pulp. Clinical data in support of using liners are scarce and inconsistent. An evaluation of the benefits and disadvantages of using cavity

Methods

The electronic databases PubMed, Embase, and CENTRAL were searched for randomized clinical trials (RCTs) comparing the outcome of restorations placed with and without cavity liners to manage primary caries lesions. The specific lining material used was calcium hydroxide. Failure was defined as need to re-treat; only those studies reporting success or failure after at least 1 year of follow-up were included. Follow-up lasted from 36 to 53 months. Evaluation of the results included random-effects

Results

Three RCTs covering 89 patients with 130 restored teeth were evaluated. All had a high risk of bias. No significant difference in failure risk was found between adhesively restoring the cavity without or with a lining. The teeth without a lining tended to have fewer failures than the teeth with the lining in place. However, the evidence was insufficient to recommend for or against use of a cavity liner.

Discussion

The use of a cavity liner did not significantly improve the results seen with these restorations, nor did its lack compromise the outcome. Since only calcium hydroxide liners were studied, the results of this study can only be applied in cases where this material is used and do not necessarily apply when other materials are placed as liners.

Clinical Significance

No strong recommendation is possible for or against the use of cavity liners for restorations to manage primary caries lesions. Before

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Schwendicke F, Göstemeyer G, Gluud C: Cavity lining after excavating caries lesions: Meta-analysis and trial sequential analysis of randomized clinical trials. J Dent 43:1291-1297, 2015

Reprints available from F Schwendicke, Dept for Operative and Conservative Dentistry, Charité—Universitätsmedizin Berlin, Aßmannshauser Str 4-6, 14197 Berlin, Germany; fax: +49 30 450 762556; e-mail: [email protected]

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