Title No Clinical or Statistical Difference Between Porcelain and Composite Restorations for Fractured Maxillary Incisor
Clinical Question In a patient with a maxillary anterior tooth fracture, would a composite restoration, compared to a porcelain veneer, provide a stronger restoration?
Clinical Bottom Line For a patient with a maxillary anterior tooth trauma fracture of 4 mm or less, there is no statistically significant difference in the fracture resistance between a composite restoration and porcelain veneer. The composite restoration and porcelain veneer are clinically acceptable treatments, but treatment decision would depend on esthetics and cost.
Best Evidence  
PubMed ID Author / Year Patient Group Study type
(level of evidence)
21752192Batalocco/201260/ human-extracted maxillary central and lateral incisorsControlled in-vitro trial
Key resultsThe composite veneers of the 2 mm fracture group demonstrated a mean failure load of 1386.59 N ± 712.16 while the 4 mm fracture group demonstrated a mean failure load of 1322.61 N ± 716.16. The porcelain veneers of the 2 mm fracture group demonstrated a mean failure load of 1039.29 N ± 592.96 while the 4 mm fracture group demonstrated a mean failure load of 1459.21 N ± 910.25.
Evidence Search ("dental porcelain"[MeSH Terms] OR ("dental"[All Fields] AND "porcelain"[All Fields]) OR "dental porcelain"[All Fields] OR "porcelain"[All Fields]) AND composite[All Fields] AND veneer[All Fields]
Comments on
The Evidence
Validity: This article is a controlled and presented a comprehensive and detailed description of their respective materials and methods. The trials tested the results for validity by comparing the findings to known values. Although the 2 experimental groups, composite and porcelain, technically were prepared differently, the 2 groups were prepared using clinically established and accepted methods. The veneer was prepared without a palatal extension while the composite was prepared with a palatal extension with a bevel.
Applicability Anterior maxillary trauma fracture restored with either a composite restoration or porcelain veneer.
Specialty (Prosthodontics) (Restorative Dentistry)
Keywords trauma fracture, anterior maxillary incisor, porcelain veneer, composite restoration, failure load, fracture resistance
ID# 2441
Date of submission 03/27/2013
E-mail kwee@livemail.uthscsa.edu
Author Eileen Kwee
Co-author(s) e-mail
Faculty mentor William Rose, DDS
Faculty mentor e-mail rosew@uthscsa.edu
Basic Science Rationale
(Mechanisms that may account for and/or explain the clinical question, i.e. is the answer to the clinical question consistent with basic biological, physical and/or behavioral science principles, laws and research?)
None available
Comments and Evidence-Based Updates on the CAT
None available