نتایج جستجو برای: beam computed tomography canal instrumentation

تعداد نتایج: 412530  

Journal: :Sains Malaysiana 2021

Hypoglossal canal (HC) which begins from very slightly above the inner part of anterolateral portion foramen magnum and is located occipital condyle bone. The aim this study to examine HC morphology variations using cone beam computed tomography (CBCT). types were investigated with 303 CBCT images (606 side). Type 1 variation in 606 examined becomes most commonly observed type (57.3%) while 5 w...

2015
Yazdan Shantiaee Omid Dianat Payam Paymanpour Golnaz Nahvi Mohammad Ali Ketabi Golbarg Kolahi Ahari

INTRODUCTION The aim of this study was to compare the changes that occur in the danger zone (DZ) after preparation of curved mesiobuccal (MB) canals of mandibular first molars with WaveOne instruments in two different movements [reciprocation (RCP) and counter-clockwise rotation (CCWR)] by means of cone-beam computed tomography (CBCT). METHODS AND MATERIALS MB canals of 30 mandibular molars w...

Introduction: To achieve a successful endodontic treatment, the clinician has to identify the different canal configurations.mandibular premolars have the wide variety of root canal morphology and they are known as the most difficult teeth to treat in endodontics.CBCT  provides a non-invasive 3D confirmatory diagnosis as a complement to conventional radiography.The aim of this study was to...

Journal: :Brazilian dental journal 2007
Orlando Limongi Diana Santana de Albuquerque Flares Baratto Filho José Roberto Vanni Elias P Motcy de Oliveira Fernando Branco Barletta

This in vitro study compared, using computed tomography (CT), the amount of dentin removed from root canal walls by manual and mechanical rotary instrumentation techniques. Forty mandibular incisors with dental crown and a single canal were selected. The teeth were randomly assigned to two groups, according to the technique used for root canal preparation: Group I - manual instrumentation with ...

2016
Fariborz Moazzami Leila Khojastepour Mohammadreza Nabavizadeh Mina Seied Habashi

INTRODUCTION The aim of this in vitro study was to compare the canal transportation of two single-file engine-driven systems, Neoniti and Reciproc, using cone-beam computed tomography (CBCT). METHODS AND MATERIALS Forty-five non-calcified roots with mature apices and apical curvature of 15-30 degrees were selected from extracted human maxillary molars for this study. Samples were randomly div...

2012
Leila Atash biz Yeganeh Mamak Adel Reza Vahedi Maryam Tofangchiha

Thorough knowledge of root canal morphology is essential for the endodontic therapy. There are rare variations in canal number and configuration in maxillary molars, which could affect treatment outcome. This paper presents the endodontic management of a maxillary first molar with two palatal canals in one root (Vertucci type IV) and a single buccal canal. In this paper cone-beam computed tomog...

2013
Anil Dhingra Nayasha Manchanda

The aim of this study was to describe canal anatomy modifications by Path Files (PF) using cone beam computed tomography (CBCT) in mandibular first molars. A total of 100 mesiobuccal (MB) root canals of mandibular first molars were prepared with PF. CBCT was used to scan the specimens before and after instrumentation. The root canal curvature, centric ability, apical transportation, root canal ...

Journal: :dental research journal 0
mahnaz sheikhi asieh zamaninaser faranak jalalian

background: greater palatine canal is used for maxillary nerve block. this procedure has somecomplications such as proptosis, blindness, and intravascular injection. this study aimed to determinethe mean greater palatine canal length (cl) and its typical anatomic routes, as well as provide areliable facial index for computing the cl by using cone beam computed tomography (cbct) data. materials ...

Journal: :iranian endodontic journal 0
mohsen bahmani alireza adl samane javanmardi sina naghizade

a 20-year-old man presented with the history of pain and swelling in the anterior maxillary segment. the periapical radiography was indicative of a dental anomaly in right maxillary lateral incisor. due to the insufficient information from conventional radiography, cone-beam computed tomography (cbct) was ordered. cbct showed apical root resorption, large apical lucency and two separate canals ...

Introduction: Bifid mandibular canal is one of the types of mandibular canal. Considering that failure to identify the bifid mandibular canals can lead to various complications. In the present study, bifid mandibular canal was evaluated by CBCT (Cone beam Computed tomography) images in Rafsanjan City. Methods: In this descriptive cross sectional study, all the patients who underwent CBCT at a...

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