Reinforcement effect of intra-orifice barrier materials in teeth treated with regenerative endodontic procedure: Research article.

Sevinç Aktemur Türker,Fatma Zühal Yurdagül,Sena Kaşıkçı,Keziban Olcay

doi:10.34172/joddd.2021.019

Abstract

Background. Regenerative endodontic treatment (RET) is a clinically advanced procedure for necrotic immature teeth. However, root canal walls of these teeth are brittle especially in the cervical region and need reinforcement. This in vitro study is conducted to evaluate the effect of intra-orifice barrier materials on the fracture resistance of immature teeth treated with regenerative procedure. Methods. Forty-eight maxillary central incisors were used. Twelve intact teeth were selected for the control group. Remained teeth were prepared using peeso drills to simulate immature teeth and assigned into three groups according to the intra-orifice barrier material placed over MTA (n = 12); Composite resin (CR), ProRoot MTA and Resin-modified glass ionomer cement (RMGIC). Fracture strength test was applied using a universal testing machine. One-way ANOVA and Tukey post hoc tests were used at P = 0.05. Results. A significant difference was obtained among groups (P < 0.05). MTA showed the lowest fracture resistance (P < 0.05). However, no significant difference was found among RMGIC, CR, and control groups (P > 0.05). Conclusion. Intra-orifice restorative materials have reinforcement affect in immature teeth treated with regenerative endodontic procedure. RMGIC or CR can be regarded as a viable choice to reduce the occurrence of cervical root fracture of immature teeth treated with a regenerative therapy.

Highlights

Regenerative endodontic treatment (RET) has been applied as an alternative treatment procedure to apexification for open apex teeth with necrotic pulp and apical periodontitis.[1]
No significant difference was found among Resin-modified glass ionomer cement (RMGIC), Composite resin (CR), and control groups (P > 0.05)
RMGIC or CR can be regarded as a viable choice to reduce the occurrence of cervical root fracture of immature teeth treated with a regenerative therapy

Summary

Introduction

Regenerative endodontic treatment (RET) has been applied as an alternative treatment procedure to apexification for open apex teeth with necrotic pulp and apical periodontitis.[1]. Even with RET, the cervical region does not develop further.[2] These teeth are shown more susceptible to cervical fracture during functional stresses and secondary to trauma applied to the cervical area.[3,4] In RET, cervical sealing with a tricalcium silicate-based barrier is suggested to provide a bacterial tight seal[5] and induction of mineral formation.[6] Composites, in combination with dental adhesives, have been commonly suggested for an effective coronal restoration placed over the tricalcium silicate-based barrier to prevent reinfection of the root canal.[7] To date, several case reports related to teeth treated with a RET protocol have been published. Root canal walls of these teeth are brittle especially in the cervical region and need reinforcement This in vitro study is conducted to evaluate the effect of intra-orifice barrier materials on the fracture resistance of immature teeth treated with regenerative procedure. RMGIC or CR can be regarded as a viable choice to reduce the occurrence of cervical root fracture of immature teeth treated with a regenerative therapy

Objectives

Methods

Discussion

Conclusion