Clinical Significance
Having at least one remaining coronal wall strengthens the tooth-restoration complex, which not only improves
Factors that alter the restorative clinical success of endodontically treated teeth include the use of posts, the type of coronal restoration, and the design of the coronal restoration. The use of different materials even with the same strategy can result in different outcomes. Clinicians must understand the limitations and advantages of the various materials and techniques to choose the best options. A randomized clinical trial was undertaken to compare the survival of composite resin
The 47 patients had 57 endodontically treated teeth that had extensive coronal damage but retained at least one intact surface. They were randomly assigned to receive either a metal-ceramic crown or a composite resin restoration. The same dentin bonding agent and composite resin were used in all cases, whether direct or indirect. Fourteen restorations were in anterior teeth, 21 in premolars, and 22 in molars. Follow-up lasted 13 to 59 months (mean 2.5 years). Survival data for the restorations
One root fracture occurred in the composite resin group after 11 months and was considered an absolute failure. For the metal-ceramic crown group, one failure was observed, whereas eight direct failures occurred—seven were restoration failures and two involved secondary caries, with one tooth having both.
A statistically significant difference in success was noted between the two groups but there was no difference in survival. Type of tooth and position in the upper or lower jaw were not related
The metal-ceramic crowns and direct composite restorations performed equally well in endodontically treated teeth that utilized a glass fiber post and had at least one remaining coronal wall for up to 5 years (mean 2.5 years). However, the indirect restorations had higher clinical performance rates and less need for intervention than the direct restorations. Clinical Significance Having at least one remaining coronal wall strengthens the tooth-restoration complex, which not only improves
Skupien JA, Cenci MS, Opdam NJ, et al: Crown vs. composite for post-retained restorations: A randomized clinical trial. J Dent 48:34-39, 2016
Reprints available from T Pereira-Cenci, R. Gonçalves Chaves 457, Pelotas, RS, 96015-560, Brazil; e-mail: [email protected]