Fracture Resistance of Three Post Types in the Restoration of Anterior Primary Teeth

Fatemeh Kadkhodaei,Roza Haghgoo,Mehrshad Zareiyan,Majid Mehran

doi:10.2174/1874210602014010375

Abstract

Background: Extensive restorative treatments of anterior primary teeth are challenging in pediatric dentistry. Objective: This study aimed to compare the fracture resistance of three post types for restoring the anterior primary teeth. Methods: This in-vitro study was carried out on 90 extracted maxillary anterior primary teeth with intact roots. They were randomly allocated into six groups to be restored with conventional composite resin post, X-tra fill composite resin post, Tetric N Ceram composite resin post, prefabricated glass fiber post with conventional composite build-up, prefabricated glass fiber post with X-tra fill composite build-up, and prefabricated glass fiber post with Tetric N Ceram composite build up. The samples were polished and placed in acrylic resin blocks with 1 mm of part of cervical root being out, thermocycled (×5000) and tested for fracture resistance. Intra-class correlation test, Kruskal-Wallis test and one-way ANOVA were used for statistical analyses (α=0.05). Results: The mean fracture resistance was significantly different among the six groups. It was the highest in prefabricated glass fiber post with conventional composite build-up (418.64 N), prefabricated glass fiber post with X-tra fill composite build-up (403.63 N) and prefabricated glass fiber post with Tetric N Ceram composite build up (361.63 N); and the lowest in Tetric N Ceram group (280.65 N). The groups were significantly different concerning the fracture strength and fracture state. Conclusion: Since the anterior teeth restored with prefabricated glass fiber posts were far more fracture resistant, and prefabricated glass fiber posts can be promisingly used for the restoration of anterior primary teeth.

Highlights

Dental caries is the most prevalent chronic childhood disease [1]
Since the anterior teeth restored with prefabricated glass fiber posts were far more fracture resistant, and prefabricated glass fiber posts can be promisingly used for the restoration of anterior primary teeth
The highest fracture strength value was seen in prefabricated glass fiber post with conventional composite build-up group followed by prefabricated glass fiber post with X-tra fill composite build-up group

Summary

Introduction

Dental caries is the most prevalent chronic childhood disease [1]. Childhood caries has a clinically distinguished pattern in very young children. Restoration of anterior primary teeth has always been a great challenge in pediatric dentistry due to various reasons such as small crown size, large pulp chamber, and the pediatric patient’s age. Concerning the anterior teeth, it is important to preserve the tooth structure and reconstruct the primary form of the teeth, and to consider the aesthetics and use of composite resins. Because of structural differences between primary and permanent teeth like less available dentin for bonding, composite restorations induce some issues for the primary teeth [7]. Extensive restorative treatments of anterior primary teeth are challenging in pediatric dentistry

Methods

Results

Discussion

Conclusion