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Fracture Resistance of the Bundle Post System and Conventional Fiber Post with Different Lengths.
- Source :
- International Journal of Periodontics & Restorative Dentistry; May/Jun2023, Vol. 43 Issue 3, pe133-e139, 7p
- Publication Year :
- 2023
-
Abstract
- This study compares the fracture strength of teeth restored with conventional round fiber post (CP) and bundle post (BP) in two different lengths. A total of 48 mandibular premolars were selected. Endodontic treatment was performed, and the premolars were divided into four groups (n = 12 per group): Group C9 = 9-mm CP; Group C5 = 5-mm CP; Group B9 = 9-mm BP; Group B5 = 5-mm BP. Post spaces were prepared, and posts were disinfected with alcohol. Silane was applied, and posts were placed with self-etch dual-cure adhesive. The core structures were created using dual-cure adhesive and standardized core-matrix. Specimens were embedded in acrylic, and the periodontal ligament was simulated with polyvinyl-siloxane impression material. Thermocycling was performed, and specimens were then loaded at a 45-degree angle to the long axis. The failure mode was analyzed with x5 magnification, and statistical analyses were performed. No statistical difference was found between post systems and post lengths (P > .05). Chi-square test revealed no statistical difference in the failure mode (P > .05). BP did not affect fracture resistance compared to CP. For the restoration of extremely irregular canals with a fiber post, BP can be used as an alternative system because it does not reduce the fracture strength. If necessary, longer posts can be used without decreasing the fracture resistance. [ABSTRACT FROM AUTHOR]
- Subjects :
- STATISTICS
BICUSPIDS
ANALYSIS of variance
DENTAL materials
POLYSTYRENE
PHYSIOLOGIC strain
ACRYLIC resins
TOOTH fractures
COMPARATIVE studies
PEARSON correlation (Statistics)
TENSILE strength
CHI-squared test
DESCRIPTIVE statistics
RESEARCH funding
DENTAL fillings
SILOXANES
DENTAL impression materials
DATA analysis software
DATA analysis
ENDODONTICS
Subjects
Details
- Language :
- English
- ISSN :
- 01987569
- Volume :
- 43
- Issue :
- 3
- Database :
- Complementary Index
- Journal :
- International Journal of Periodontics & Restorative Dentistry
- Publication Type :
- Academic Journal
- Accession number :
- 163540073
- Full Text :
- https://doi.org/10.11607/prd.6399