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J Conserv Dent 2020 May-Jun;23(3):233-239. Epub 2020 Dec 4.

Department of Conservative Dentistry and Endodontics, Dayananda Sagar College of Dental Sciences, Bengaluru, Karnataka, India.

Aim: This study was aimed to evaluate the fracture resistance of proclined endodontically treated teeth with different post and core systems.

Settings And Design: Experimental study.

Methodology: Eighty extracted maxillary central incisors were selected and decoronated keeping 2 mm of crown ferrule and were endodontically treated. Read More

J Prosthodont 2021 Jan 13. Epub 2021 Jan 13.

Department of Prosthodontics, Faculty of Dentistry, Istanbul University, Istanbul, Turkey.

This technique article describes an efficient, cost effective and time saving procedure using the fractured abutment as a custom cast post and core when an overdenture abutment is fractured and attempts to retrieve the fractured segment fail. Read More

J Pharm Bioallied Sci 2020 Aug 28;12(Suppl 1):S554-S559. Epub 2020 Aug 28.

KSR Institute of Dental Science and Research, Thiruchengodu, Tamil Nadu, India.

Introduction: Endodontically treated teeth have significantly differentphysical properties compared to vital teeth. To ensure functional longevity,endodontically treated teeth must have at least 5 mm of tooth structure coronalto the crestal bone, 2 mm of coronal tooth structure incisal to the preparationfinish line are necessary to ensure functional integrity.

Aim And Objectives: To evaluate fracture resistance of endodontically treated teeth restored withcustom cast post, custom cast post with variable ferrule height and teethwithout ferrule, prefabricated post with variable ferrule height and teethwithout ferrule. Read More

J Prosthodont 2020 Aug 2;29(7):631-635. Epub 2020 Jul 2.

Department of Orthodontics and Pediatric Dentistry, College of dentistry, Qassim University, Al-Mulaydah, Qassim, KSA.

This report introduces an alternative clinical and laboratory technique for the direct fabrication of a custom post-and-core pattern using poly (vinyl siloxane) (PVS) occlusal registration material, followed by a digital workflow. This technique decreases chairside time, eliminates the risk of locking the pattern into the postspace and improves accuracy of the custom post-and-core. Read More

Oper Dent 2020 Sep;45(5):506-515

Clinical Relevance: Custom-made post-and-cores of polyetheretherketone (PEEK) and nano-ceramic composite showed good fracture resistance and failure mode. Clinicians should be aware that these materials might be an efficient alternative for post-and-cores, because they promote esthetics while reducing the risk of root fractures.

Summary: Purpose: The purpose of this study was to evaluate the fracture resistance and failure mode of custom-made post-and-cores manufactured with different esthetic materials. Read More