The Fracture Resistance of Pulpotomized Primary Molars Restored with Zirconia Crowns, Lithium Disilicate or Resin Based Ceramic Endocrowns

Overview

Journal BMC Oral Health

Publisher Biomed Central

Specialty Dentistry

Date 2024 May 19

PMID 38764030

Authors

Amany Abd Elhady Muhammad Ali

Asmaa Ali Emam Abo-Elsoud

Yousra Samir Helmy

Affiliations

Soon will be listed here.

Abstract

Background: Endocrown in pediatric dentistry was rooted in the fundamental principles of preserving healthy dental tissues, leveraging contemporary adhesive methodologies.

Aim: This research aimed on assessing and comparing the fracture resistance of pulpotomized primary molars when rehabilitated with zirconia crowns and two distinct types of endocrowns, namely E-Max and Brilliant Crios.

Methods: The study involved thirty, anonymized, freshly extracted second primary molars that underwent pulpotomy. These teeth were then evenly divided into three groups, each consisting of ten specimens: the zirconia crown, the E-Max endocrown, and the Brilliant Crios endocrown groups. Post-pulpotomy, the teeth were prepared for their respective restorations. Subsequent to this preparation, the zirconia crowns, E-Max endocrowns, and Brilliant Crios endocrowns were secured. To evaluate the fracture resistance using a computer-controlled testing machine (Instron), a progressively increasing load was applied to each group until fracture occurred. The gathered data were then analyzed for outliers and subjected to normality testing using the Shapiro-Wilk and/or Kolmogorov-Smirnov tests, with a significance threshold set at 0.05.

Results: There was no statistically significant difference in fracture resistance of pulpotomized primary molars among lithium disilicate (E-Max) group (mean=1367.59N), Brilliant Crios group (mean=1349.73N) and zirconia group (mean=1240.82N).

Conclusion: Endocrowns can be considered a promising restoration for pulpotomized primary molars.

Citing Articles

Thermomechanical aging effects on vertical marginal gap and fracture resistance: a comparative study of Bioflx and traditional pediatric crowns.

Abo-Elsoud A, Mohamady E, Abdou N BMC Oral Health. 2024; 24(1):1334.

PMID: 39487502 PMC: 11529303. DOI: 10.1186/s12903-024-05053-4.

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