Preheated thermoviscous composite resin useful option for restoring noncarious cervical lesions restorations: Study

Written By :  Dr. Shravani Dali
Medically Reviewed By :  Dr. Kamal Kant Kohli
Published On 2024-04-06 02:00 GMT   |   Update On 2024-04-06 05:53 GMT
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Preheated thermoviscous composite resin useful option for restoring noncarious cervical lesions restorations suggests a new study published in the Journal of Dentistry.

This 24-month, double-blind, split-mouth randomized clinical trial aimed to compare the retention rates of a preheated thermoviscous composite resin (PHT) compared to a non-heated composite resin (NHT) in non-carious cervical lesions (NCCLs). A total of 120 restorations were restored on NCCLs using a preheated (VisCalor bulk, Voco GmbH) and a non-heated (Admira Fusion, Voco GmbH) composite resins with 60 restorations per group. A universal adhesive in the selective enamel conditioning was applied. In the PHT group, the composite was heated at 68 °C for using a bench heater. In the NHT group, no heating was employed. Both restorative materials were dispensed into caps and inserted into the NCCLs. The restorations were evaluated at baseline, 6, 12, 18, and after 24 months of clinical service using the FDI criteria. Statistical analysis was performed with Kaplan–Meier estimation analysis for retention/fracture rate and Chi-square test for the other FDI parameters (α=0.05).

Results: After 24 months 108 restorations were assessed. Seven restorations were lost (two for PHT group and five for NHT group), and the retention rates (95 % confidence interval [CI]) were 96.7 % (81.5–99.9) for PHT group and 90.8 % (81.1–96.0) for NHT group, with no statistical differences between them (p > 0.05). The hazard ratio (95 % CI) was 0.52 (0.27 to 1.01), with no significant difference within groups. In terms of all other FDI parameters that were assessed, all restorations were deemed clinically acceptable. Both composites showed high rates of retention rates after 24 months. The clinical performance of the new preheated thermoviscous was found to be as good as the non-heated composite after 24-month of clinical evaluation in non-carious cervical lesions.

Reference:

Michael Willian Favoreto, Taynara de Souza Carneiro, Romina Ñaupari-Villasante, Deisy Cristina Cordeiro, Gabriel David Cochinski, Thais Vilalba Paniagua Machado do Nascimento, Thalita de Paris Matos, Matheus Coelho Bandeca, Alessandra Reis, Alessandro D. Loguercio. Clinical performance of preheating thermoviscous composite resin for non-carious cervical lesions restoration: A 24-month randomized clinical trial. Journal of Dentistry, Volume 144, 2024, 104930, ISSN 0300-5712, https://doi.org/10.1016/j.jdent.2024.104930.

(https://www.sciencedirect.com/science/article/pii/S0300571224001003)

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Article Source : Journal of Dentistry

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