نتایج جستجو برای: root canal therapy

تعداد نتایج: 811019  

پایان نامه :0 1371

the treatment of in completely formed pulpless teeth has presented considrable problems. these teeth have wide open apexes and the walls of the root canal diverge toward the apical tissues. mechanical preparation cannot be done in the normal manner beacause of the large initial size and the taper of apical part of the canal , a mechanical stop cannot be produced at the apex of the canal and , t...

Journal: :journal of dentistry, tehran university of medical sciences 0
fahad umer senior instructor, operative dentistry program, dental section, aga khan university hospital, karachi, pakistan. samira adnan resident, operative dentistry program, dental section, aga khan university hospital, karachi, pakistan. farhan raza khan assistant professor, operative dentistry program, dental section, aga khan university hospital, karachi, pakistan.

invasive cervical resorption is a condition that affects the root surface area below the epithelial attachment. multiple treatment modalities are advocated, involving exposure of the invasive defect, removal of the granulation tissue and sealing with various restorative materials. this report demonstrates conservative treatment of a patient presenting with peri-apical periodontitis in upper rig...

Journal: :iranian endodontic journal 0
shiva sadeghi department of endodontics, dental school, dental research center, guilan university of medical sciences, rasht, iran vahideh poryousef private practice, rasht, iran

materials and methods: one hundred and thirty five mesial root canals of mandibular first and second molar teeth were selected. access cavities were prepared. after inserting a k-file size #10 into each canal, radiographs were taken. canal curvature was determined by measuring the schneider angle, canal access angle, as well as the canal radius, length, height and curvature starting distance on...

Journal: :journal of dentistry, tehran university of medical sciences 0
gurudutt nayak reader, department of conservative dentistry & endodontics, kanti devi dental college & hospital, mathura, uttar pradesh, india. inderpreet singh assistant professor, department of conservative dentistry & endodontics, dasmesh institute of research & dental sciences, faridkot, punjab, india. shashit shetty professor & head, department of conservative dentistry & endodontics, kanti devi dental college & hospital, mathura, uttar pradesh, india. surya dahiya senior resident, dental wing, bps government medical college for women, sonepat, haryana, india.

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 systems.sixt...

Journal: :journal of dental research, dental clinics, dental prospects 0
mohammad samiei assistant professor of endodontics mohammad aghazadeh assisstant professor of clinical microbiology farrokh farhadi academic member of oral and maxillofacial surgury department ali torab dental student seyyed mahdi vahid pakdel post-graduate student of prosthodontics

background and aims. various materials and methods have been introduced for obturating cleaned and shaped root canal systems. this in vitro study aimed to evaluate the sealing ability of single-cone obturation technique with mineral tri-oxide aggregate and calcium-enriched mixture based on bacterial leakage approach. materials and methods. sixty-four single-canal teeth were prepared and randoml...

Journal: :journal of dentistry, tehran university of medical sciences 0
mina zarei maryam javidi zeinab kazemi farzaneh afkhami

objectives: this study aimed to assess and compare the apical sealing ability of herofill® soft-core system and lateral condensation technique in fine curved canals using the fluid filtration method. materials and methods: forty human mesiobuccal root canals of mandibular first molars with 25° to 40° curvatures were instrumented to an apical size 30/0.04. roots were randomly assigned to two exp...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
elnaz mosavi khoonsari department of endodontics, faculty of dentistry, guilan university of medical sciences, rasht, iran. maryam ghamari department of endodontics, faculty of dentistry, qazvin university of medical sciences, ghazvin, iran

the main objective of endodontic therapy is the thorough mechanical and chemical cleansing of the entire root canal system and its complete obturation with an inert filling material. failure to find and fill a canal contributes toward the failure of endodontic therapy .the root canal anatomy of mandibular first molars is complex. studies of the morphologic structure of root canal systems have d...

Journal: :iranian endodontic journal 0
saeed asgary maryam ahmadyar

abstract : inflammatory external root resorption (ierr) is a pathological phenomenon of microbial origin. this stu dy reports a case of external apical inflammatory root resorption of maxillary incisors associated with periradicular lesions in a 22 year old female, which was successfully treated by one-visit root canal therapy (rct). radiographic investigation revealed periapical radiolucencies...

Journal: :journal of dentistry, tehran university of medical sciences 0
a. parolia assistant professor, department of conservative dentistry and endodontics, manipal college of dental m. kundabala professor, department of conservative dentistry and endodontics, manipal college of dental sciences,

supernumerary paramolars are a rare anomaly of the maxillofacial complex. they are more common in the maxilla than the mandible. this article reports a rare case of bilateral maxillary paramolars, their complications and management.

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
seyedeh tahereh mohtavipour department of maxillofacial radiology, guilan university of medical sciences, rasht, iran shiva sadeghi department sciences research center, faculty of dentistry, guilan university of medical research, rasht, iran. seyedeh saeedeh mohtavipour department of pediatric dentistry, guilan university of medical sciences, rasht, iran. aliehsadat javadzadeh haghighat department of maxillofacial radiology, guilan university of medical sciences, rasht, iran maryam rezvani department of maxillofacial radiology, guilan university of medical sciences, rasht, iran. bahar mamoud khalesi department of maxillofacial radiology, guilan university of medical sciences, rasht, iran.

introdouction: canal length measurement is essential for proper endodontic treatment. any error or miscalculation in working length determination, particularly in curved canals, can result in complications during or after root canal therapy. digital radiography has enabled accurate measurement of curved canal length. in this study, we evaluated the accuracy of calibration of a complementary met...

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