title: Comparative evaluation of fracture resistance of glass fiber reinforced, carbon, and quartz post in endodontically treated teeth: An in-vitro study.
abstract: OBJECTIVE
  Use of posts improves the physical properties of endodontically-treated teeth. Different post types are developed such as metal, custom-made, carbon, and quartz. The present study was conducted to evaluate the fracture resistance of glass fiber-reinforced, carbon, and quartz post in endodontically-treated teeth.
  
  
  METHODS
  Forty extracted human maxillary incisor teeth were decoronated and endodontically treated and equally divided into 4 groups; control, glass fiber-reinforced, carbon, and quartz posts. No post was used in the control group. Post space was prepared and cemented with different posts and subjected to universal testing machine to check fracture resistance. The data were statistically analyzed using t-test and analysis of variance to compare the mean difference between groups (SPSS version 20, IBM).
  
  
  RESULTS
  Quartz type of endodontic post showed good fracture resistance compared to carbon and resin-reinforced post. Least resistance was observed in the control group without post.
  
  
  CONCLUSIONS
  Quartz, carbon, and glass fiber-reinforced posts show good resistance to fracture, and hence can be used in endodontically-treated teeth to enhance their strength.
authors: Department of Conservative Dentistry and Endodontics, Maharana Pratap Dental College, Gwalior, Madhya Pradesh, India.
authors: Shweta
authors: S
authors: Sharma
authors: Department of Prosthodontics, PSM College of Dental Science and Research, Thrissur, Kerala, India.
authors: George
authors: G
authors: Attokaran
authors: Department of Conservative Dentistry and Endodontics, Santosh Dental College, Ghaziabad, Uttar Pradesh, India.
authors: Kunwar S
authors: KS
authors: Singh
authors: Department of Periodontics, Malabar Dental College and Research Centre, Eddapal, Kerala, India.
authors: Jeethu J
authors: JJ
authors: Jerry
authors: Department of Prosthodontics, Vyas Dental College and Hospital, Jodhpur, Rajasthan, India.
authors: Naima
authors: N
authors: Ahmed
authors: Department of Prosthodontics, Vyas Dental College and Hospital, Jodhpur, Rajasthan, India.
authors: Nirban
authors: N
authors: Mitra
keywords: Carbon; compressive force; core; custom; fracture; post; quartz; resistance