Fracture resistance of endodontically treated maxillary premolars with a longer single post and shorter double posts of different sizes: An in vitro study

Abstract

A BSTRACT Aim: The aim of this study was to determine if there is any difference in fracture resistance between different post sizes and lengths when more than one post is involved. Materials and Methods: Thirty extracted maxillary first premolars were endodontically treated and divided into three groups: In Group 1 (control group), no post space preparation was conducted and access cavities were restored with composite; in Group 2 (single post), post space preparation of 10 mm was carried out only in one of the canals; and in Group 3 (double post), post space preparation of 5 mm was conducted in both the canals. Appropriately sized glass fiber posts were cemented in Groups 2 and 3 followed by core buildup. The fracture resistance of the specimen was measured using a universal testing machine and the data analyzed. The mean fracture resistance values of the three groups were compared applying one-way analysis of variance (ANOVA) followed by post hoc Tukey’s test. The data were analyzed using Statistical Package for the Social Sciences software program, version 15.0. South Asia, Bangalore. Results: The control group had a significantly lower fracture resistance value as compared to Groups 2 and 3. No statistically significant difference was observed in the fracture resistance between Groups 2 and 3. Conclusions: No significant difference was observed between the fracture resistance of endodontically treated maxillary first premolars restored with size 3 single post of longer length and size 1 double posts of shorter lengths.

Fracture resistance to treated teeth using known endodontics techniques in Indian patients

“…Bonding between the fiber post and the root dentin improves stress distribution. The choice of the posts is predetermined to the dimension of the root canal and restricted by the root length [ 12 ]. Balkaya et al (2021) assessed the effectiveness of various coronal restorations on the fracture resistance of immature teeth and concluded that Ribbond in combination with composite resin enhances the fracture resistance of teeth [ 13 ].…”

Fracture Resistance of Endodontically Treated Premolars Reconstructed by Traditional Casting and CAD-CAM Milling Post and Cores

“…The specimens were tested without placing full crowns, and the load was exerted directly on the cores. The use of full coverage restorations during evaluating fracture strengths of root canal treated teeth has been questioned, as the crown placed over a core buildup could create a ferrule effect when its margins encircle a sound dentin collar, that enhances fracture resistance of the restoration [ 30 , 31 ].…”

Review of guidance for the selection of regenerative endodontics, apexogenesis, apexification, pulpotomy, and other endodontic treatments for immature permanent teeth

“…Some endodontists may lack the training and experience to provide regenerative endodontic treatments. This is because some endodontists who were surveyed admitted they lack a sound knowledge of regenerative endodontics, and only one in five, had a positive perception of its usefulness (Mayya et al, 2021). Hence the need for this review, not only to focus on regenerative endodontics, but also to provide guidance on patient selection, case selection, and the status of root development, to guide the endodontist to use differential diagnosis criteria to select the most appropriate type of endodontic treatment plan for every type of immature tooth.…”