نتایج جستجو برای: obturation

تعداد نتایج: 1346  

Journal: :The journal of contemporary dental practice 2006
Emre Bodrumlu Umut Tunga

AIM The aim of this study was to assess the apical sealing ability of Resilon obturation material. METHODS AND MATERIALS Forty-two single rooted extracted human teeth were selected and randomly divided into three groups. They were obturated using lateral condensation with gutta-percha and AH 26/AH plus and Resilon; also, 12 root canals were used as control groups. The apical leakage was measu...

Journal: : 2023

Background: Chronic apical periodontitis is potential infection with poor symptoms that are easily overlooked. Disease progession can lead to cellulitis, osteomyelitis, sinusitis, endocarditis, nephritis, arthritis, persistent fever and sepsis. In recent times, thanks advances in endodontic improving instruments, root canal antiseptics, techniques for shaping, obturation canals, treatment has a...

Journal: :Journal of clinical and diagnostic research : JCDR 2013
Ruchi Gupta Rochna Rai

AIM To ascertain the adoption of new endodontic technology in general dental practice in India in 2011. METHODOLOGY A postal questionnaire survey comprising 26 questions was sent to 700 general dental practitioners. The questions covered professional activity, root canal preparation and instrumentation, choice of irrigants and intracanal medicaments, choice of obturation techniques and other ...

Fallah, Niloofar, Mousavi, Elnaz, Nazifi, Maryam, Nosrati, Alireza,

Introduction The most common approach for obturation of roots, which are treated endodontically, is lateral condensation. Finger spreaders have an essential role in packing the gutta-percha cones. We carried out this research to compare the compaction index of root canal obturation obtained with stainless steel (SS) spreader, nickel-titanium (NiTi) spreader, and different gutta-percha tapers. ...

Journal: :The Journal of Experimental Medicine 1937
Louis Gross Lester Blum Gertrude Silverman

Sudden occlusion of the left anterior descending branch approximately 2 cm. below the ostium of the left circumflex coronary artery in the dog's heart produces a mortality rate of approximately 50 per cent. In dogs weighing approximately 15 kilos surviving more than 24 hours (average 1 week), an infarction is produced which almost invariably measures 5 x 5 cm. on surface. Following coronary sin...

Journal: :iranian endodontic journal 0
nahid mohammadzade akhlaghi department of endodontic, dental school of islamic azad university and iranian center for endodontic research, tehran, iran nasrin roghanizad department of endodontic, dental school of islamic azad university and iranian center for endodontic research, tehran, iran zohreh khalilak department of endodontic, dental school of islamic azad university and iranian center for endodontic research, tehran, iran neda rezaie general practitioner, tehran, iran

introduction: the purpose of this study was to compare first accessory gutta-percha penetration after the use of nickel-titanium (ni-ti) or stainless-steel spreaders in curved resin blocks. materials and methods: forty resin blocks with 30º and 45º curvatures (20 blocks for each) were prepared and #30 master cones were placed in canals. in part one, under 20 newton pressure, ni-ti or stainless-...

Journal: :journal of dental research, dental clinics, dental prospects 0
hadi mokhtari assistant professor, department of endodontics, faculty of dentistry, tabriz university of medical sciences, tabriz, iran saeed rahimi professor, department of endodontics, faculty of dentistry, tabriz university of medical sciences, tabriz, iran mohammad forough reyhani assosiate professor ,department of endodontics, faculty of dentistry, tabriz university of medical sciences, tabriz, iran saeedeh galledar assistant professor, department of endodontics, faculty of dentistry, ardabil university of medical sciences, ardabil, iran hamid reza mokhtari zonouzi assistant professor, department of endodontics, faculty of dentistry, tabriz university of medical sciences, tabriz, iran

background and aims. the single-cone technique has gained some popularity in some european countries. the aim of the present study was to compare the push-out bond strength of gutta-percha to root canal dentin with the single-cone and cold lateral compaction canal obturation techniques. materials and methods. the root canals of 58 human mandibular premolars were prepared using modified crown-do...

Journal: :dental research journal 0
seyed mohsen hasheminia ali reza farhad masoud saatchi hamidreza sadegh nejad maryam sanei

background: the incidence of dentinal defects may infl uence the outcome of root canal treatment. the aims of this study were to evaluate and compare the incidence of dentinal defects following root canal obturation with two different techniques. materials and methods: a total of 110 mesial roots of human mandibular fi rst molars were selected. twenty-seven roots were left unprepared as negativ...

Akam Saeidi Ali Bijani Azadeh Hesarkhani, Hanif Allahbakhshi, Zahra Sadat Madani

Background:One of the main reasons for extraction of endodontically treated teeth is vertical root fracture (VRF). Some factors such as root canal treatment are involved in vertical root fracture because of their potential to weaken the tooth structure. Therefore, this study aimed to investigate the effect of combining different obturation materials and rotary systems on the fr...

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