Results 31 to 40 of about 20,355 (172)

Micro-CT evaluation of dentin removal in the danger zone and dentinal microcrack formation in primary molars prepared with pediatric rotary file systems: an in vitro study [PDF]

BMC Oral Health
Introduction The aim of this study was to evaluate the amount of dentin removed and the incidence of dentinal microcrack formation in the “danger zone” of the mesial and distal root canals of mandibular primary molars using three different root canal ...
Derya Doygun, Burcu Nihan Yüksel, Arda Büyüksungur   +2 more
doaj   +2 more sources

Micro-computed Tomography-aided Evaluation for Root Dentin Micro-cracks after Root Canal Instrumentation in Diabetic and Nondiabetic Older Patients: A Pilot In vivo Study [PDF]

Contemporary Clinical Dentistry
Context: Dentinal microcracks during root canal preparation with endomotor-driven files suggest adverse consequences, while research results remain inconsistent. Diabetic individuals have modified dentin properties due to advanced glycation end-products (
Vimala Ranjhani, Hrudi Sundar Sahoo
doaj   +2 more sources

Comparative Evaluation of Crack Propagation During Root Canal Preparation in Primary Molar with Manual Instrumentation, ProTaper Universal and ProTaper Next Rotary File Systems: An in vitro Study [PDF]

Journal of Dentistry
Statement of the Problem: Root canal preparation with rotary files causes dentinal cracks in root canals of primary teeth affecting their longevity.Purpose: Nickel-titanium rotary files have been widely used for root canal preparation in primary teeth ...
Pooja Khakhar, Farhin Katge, Vamsi Krishna Chimata, Debapriya Pradhan, Shilpa Shetty, Devendra Pandurang Patil   +5 more
doaj   +2 more sources

Assessing Dentinal Microcracks in Molar Root Canals Following Preparation with OneShape, 2Shape, and OneCurve Rotary Files: An In Vitro Micro-CT Study [PDF]

Journal of Dental School
Objective(s): Microcrack formation during endodontic treatment is a major concern because it can compromise the success of the procedure. Although rotary nickel-titanium files have become the standard of care for canal shaping, there is some concern ...
Yazdan Shantiaee, Hooman Sojodi, Babak Zandi, Kourosh Shantiaee, Arezoo Mirzaei, Maryam Sayyari   +5 more
doaj   +2 more sources

Comparative evaluation of dentin microcrack formation after root canal preparation with different nickel-titanium instrument systems based on micro-CT: a systematic review and meta-analysis [PDF]

BMC Oral Health
Background Dentin microcracks following root canal treatment may progress to vertical root fractures, a severe clinical complication. Engine-driven nickel-titanium (NiTi) instruments are associated with dentin microcrack initiation, but current evidence ...
Ang Li, Jimin Zhang, Yijun Lin, Huiying Dai, Feiyang Guo, Min Nie   +5 more
doaj   +2 more sources

Synchrotron light-based μCT to analyse the presence of dentinal microcracks post-rotary and reciprocating NiTi instrumentation

Clinical Oral Investigations, 2014
The purpose of this study was to determine in vitro using a synchrotron radiation-based μCT (SRCT) whether rotary and reciprocating nickel titanium (NiTi) instrumentations lead to the formation of dentine microcracks.Fourteen extracted human molars were obtained with ethical approval.
Pop, Ioana, Manoharan, Andiappan, Zanini, Franco, Tromba, Giuliana, Patel, Shanon, Foschi, Federico   +5 more
openaire   +4 more sources

Root dentin microcrack formation using hand and rotary files: An in vitro comparative study

Bioinformation
Dentinal microcracks during root canal instrumentation pose a serious risk by weakening root structure and predisposing teeth to vertical root fractures. Therefore, it is of interest to compare the incidence of dentinal microcracks produced by HyFlex CM rotary file system, HanuDent Blue rotary file system, NT Rainbow S rotary file system and ...
Akanksha Kumari
openaire   +2 more sources

A critical analysis of research methods and experimental models to study dentinal microcracks [PDF]

International Endodontic Journal, 2021
Abstract The purpose of this narrative review was to discuss the scientific milestones that led to the current understanding of the root dentinal microcrack phenomenon based on the interplay between the usage of micro‐computed tomography (micro‐CT) as an analytical tool alongside a close‐to‐mouth experimental ...
Marco Aurélio Versiani, Daniele Moreira Cavalcante, Felipe Gonçalves Belladonna, Emmanuel João Nogueira Leal Silva, Erick Miranda Souza, Gustavo De‐Deus   +5 more
openaire   +2 more sources

Stereomicroscopic evaluation of dentinal microcrack formation induced by rotary file systems: An in vitro study

Bioinformation
Root canal instrumentation should preserve radicular dentin to maintain fracture resistance, yet different rotary systems may produce dentinal defects during shaping. Therefore, it is of interest to compare the incidence and types of defects caused by ProTaper Next and OneShape in single-rooted mandibular premolars.
Subhankar Banik
openaire   +2 more sources

Stereomicroscopic Evaluation of Dentinal Microcracks After Instrumentation of Curved Canal with Rotary Files in Two Motions [PDF]

, 2022
Objective: This study aimed to examine the effects of three distinct file systems with two motion types—rotary and reciprocation—on the development of dentinal microcracks after root canal preparation using a stereomicroscope.
Thumar, Sweety, Parmar, Anisha, Chintan Joshi, Sweety Thumar, Anisha Parmar, Nupur Vasava, Jadawala, Kruti, Kruti Jadawala, Joshi, Chintan, Shreya Modi, Modi, Shreya, Vasava, Nupur   +11 more
core   +1 more source