OBJECTIVE Apical extrusion of debris and irrigants during cleaning and shaping of the root canal is one of the main causes of periapical inflammation and postoperative flare-ups. The purpose of this study was to quantitatively measure the amount of debris and irrigants extruded apically in single rooted canals using two reciprocating and one rotary single file nickel-titanium instrumentation sy...

BACKGROUND The purpose of this study was to investigate the consistency of working length control between hand instrumentation in comparison to engine driven Mtwo nickel-titanium rotary files. MATERIAL AND METHODS Forty extracted maxillary molars were selected and divided onto two parallel groups. The working lengths of the mesiobuccal root canals were estimated. The teeth were fixed in a pha...

Background: Using hand files in primary teeth is time-consuming, can lead to the formation of unwanted curvatures, and cause iatrogenic errors. To overcome these difficulties, rotary instrumentation using nickel-titanium was done.Aims: The present study conducted clinically evaluate assess difference manual versus root canals concerning duration, obturation quality fills, complications encounte...

This study aimed to determine the incidence of dentinal microcracks after instrumenting root canals maxillary premolars using two novel rotary instrumentation systems. Micro-computed tomography (microCT) scans and images generated by sectioning observation with a stereomicroscope were used assess specimens. Twenty-two freshly extracted collected specimens divided into groups eleven. The tested ...

This clinical trial focused on collating the instrumentation time and quality of root canal obturation in primary molars treated with three techniques: adaptive, rotary, manual. A triple-armed, randomized controlled was performed 75 requiring pulpectomy treatment, divided into groups (n = 25 per group). The teeth Group 1 were instrumented an adaptive technique (XP-endo Shaper, FKG Dentaire, La ...

introduction : to evaluate the efficacy of niti mechanical rotary instrumentation and hedstrom file for gutta-percha/sealer removal computed tomography (ct) was utilized in vitro . materials and methods: thirty extracted human single rooted teeth, each with a single canal were selected. the samples were decoronated with a double faced diamond disk to have 17-mm root; teeth roots were instrument...

statement of the problem: vertical root fractures are catastrophic events that often result in tooth extraction. many contributing factor are associated with increasing incidence of vertical root fracture. root canal preparation is one of the predisposing factors which can increase the root susceptibility to vertical fracture. purpose: the aim of this study was to compare the effects of three d...