ORAL HEALTH EVIDENCE-BASED PRACTICE PROGRAM
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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 (you may view more info by clicking on the PubMed ID link)
PubMed ID Author / Year Patient Group Study type
(level of evidence)
#1) 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/Discipline (Prosthodontics) (Restorative Dentistry)
Keywords trauma fracture, anterior maxillary incisor, porcelain veneer, composite restoration, failure load, fracture resistance
ID# 2441
Date of submission: 03/27/2013spacer
E-mail kwee@livemail.uthscsa.edu
Author Eileen Kwee
Co-author(s)
Co-author(s) e-mail
Faculty mentor/Co-author William Rose, DDS
Faculty mentor/Co-author 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?)
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Comments on the CAT
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