Abstract
Question: Which material provides the best clinical properties for temporary restorations?
Objective To compare the clinical properties of provisional restorations and report the subjective assessment of the patient and the dentists.
Design Prospective randomised controlled trial (RCT) in a university setting using a split-mouth design. The trial was examiner- and patient-blinded.
Intervention Thirty patients received 61 temporary restorations for crowns or fixed partial dentures. The temporary restorations were fabricated from four resins using a clear matrix technique. One autopolymerizing resin served as control versus one of three others (dualcure, lightcure and autocure).
Outcome measures Dentists' assessments of different handling characteristics were made according to a modified Californian Dental Association (CDA) scale, ie, good/sufficient/not acceptable. Moreover, intra-oral examination after 2–156 days (average, 37 days) recorded plaque adherence, presence of gingivitis and colour stability, occlusal fit, integrity and retention, and the patient's subjective assessment.
Results The only reported difference was the dentists' assessment of the handling, which ranked the dualcure resin as worse than control. The two autopolymerizing materials had the least reported problems, but the differences were not statistically significant.
Conclusion No significant differences between the temporary resin materials were observed.
Luthardt RG, Stössel M, Hinz M, Vollandt R. Clinical performance and periodontal outcome of temporary crowns and fixed partial dentures: a randomized clinical trial. J Prosthet Dent 2000; 83:32–39
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Zarb, GE, Bergman, B, Clayton, JA, Mackay, HF (Eds)Prosthodontic Treatment for Partially Edentulous Patients Saint Louis: Mosby 1978)
Shillingburg, HT, Hobo, S, Whitsett, LD, Jacobi, R and Brackett, SE Fundamentals of Fixed Prosthodontics 3rd Edn Chicago: Quintessence Publishing 1997)
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Address for correspondence: Ralph Luthardt, University Hospital Carl Gustav Carus, Fetscherstrasse_74, 01307 Dresden, Germany
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Kreulen, C. Resins for temporary crowns and partial dentures do not differ clinically. Evid Based Dent 3, 102 (2002). https://doi.org/10.1038/sj.ebd.6400143
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DOI: https://doi.org/10.1038/sj.ebd.6400143