Original Research
Volume 2022, Article ID 22020202, 7 pages
Comparative evaluation of fracture resistance of endodontically treated teeth restored with glass fiber post and a novel prefabricated edelweiss post & core system –an in vitro study
Dhanya Gangadharan1, N.Meena2,Anitha Kumari3,Vishwas Gowda4
1Seniorlecturer, DepartmentofconservativeDentistryandEndodontics,Bangalore Institute of Dental Science and Hospitals, Bengaluru, Karnataka-5600272
Professor&HOD,3 Professor,4 Senior lecturer, Department of Conservative Dentistry and Endodontics, Vokkaligara Sangha Dental College and Hospitals, Bengaluru, Karnataka-560004
Address for Correspondence:
Dr. Dhanya Gangadharan,
Senior lecturer, Department of Conservative Dentistry and Endodontics, Bangalore Institute of Dental Science and Hospitals, Bengaluru, Karnataka-560027,
Phone number:6364587888.
E-mail-dhanyadent@gmail.com
ABSTRACT
Background:
The endodontically treated teeth with compromised crown structure for its restoration necessitates the construction of a post and core to deliver necessary support and retention for the final crown.
Aim:
To assess and compare the fracture resistance and failure form of glass fiber post with composite core buildup and prefabricated single unit resin composite post &core.
Methodology:
40 human extracted mandibular premolars were split into two groups at random, administered root canal therapy, and then obturated with gutta-percha. Glass fibre post (TENAX®FiberTrans Coltene/Whaledent, USA) was cemented after the post space preparation in teeth under Group 1(n=20), and a separate composite core build-up was completed. In Group 2 (n=20) resin composite post and core single unit (Edelweiss post and core, Edelweiss dentistry products GmbH, Austria) were placed. Thermocycling (between 5 and 55°C, 30-second dwell period) was performed on all samples. The fracture resistance was tested in a Universal testing machine using a compressive load. The fracture force was measured in Newtons and a stereomicroscope was used to investigate failure patterns.
Statistical analysis:
Independent T-Test
Results:
A statistically significant difference amongst the two groups (p<0.05) was noted.
Conclusion:
The prefabricated Edelweiss resin composite post and core single unit has greater fracture resistance than the post made of glass-reinforced fibre. The failure pattern observed in the Glass fiber post was a noncatastrophic core fracture, post debonding, post-fracture, and tooth fracture while in Edelweiss post and core single unit showed non-catastrophic core and tooth fractures. There was no post debonding or post-fracture in Edelweiss post and core single unit.
Keywords: Edelweiss post and core single unit; Fracture resistance; Failure mode; Glass fiber post.
How to Cite this article: Dhanya Gangadharan, N. Meena, Anitha Kumari, & Vishwas Gowda. (2022). Comparative evaluation of fracture resistance of endodontically treated teeth restored with glass fiber post and a novel prefabricated edelweiss post & core system –an in vitro study: Original Research. International Journal of Endodontic Rehabilitation, 7. https://doi.org/10.56501/intjendorehab.2022.584
