نتایج جستجو برای: canal wall reconstruction

تعداد نتایج: 320365  

Journal: :The Journal of laryngology and otology 2007
O F Adunka C A Buchman

OBJECTIVE To demonstrate the feasibility and complexities of cochlear implantation in the setting of bilateral temporal bone osteoradionecrosis. STUDY DESIGN Case report. SETTING Tertiary care referral centre. CASE DESCRIPTION A 66-year-old woman with bilateral temporal bone osteoradionecrosis and profound hearing loss, following treatment for tonsillar cancer, underwent cochlear implanta...

2014
Anja Lieder Wolfgang Issing

Objectives. Tutoplast processed human cadaveric ossicular allografts are a safe alternative for ossicular reconstruction where there is insufficient material suitable for autograft ossiculoplasty. We present a series of 7 consecutive cases showing excellent air-bone gap closure following canal-wall-down mastoidectomy for cholesteatoma and reconstruction of the middle ear using Tutoplast process...

Journal: :iranian endodontic journal 0
arash shahravan department of endodontics, dental school, kerman university of medical sciences, kerman oral and dental diseases research center, kerman, iran alireza rekabi department of endodontics, dental school, kerman university of medical sciences, kerman, iran. hasan shahabi department of endodontics, dental school, kerman university of medical sciences, kerman, iran. rezvan ashuri department of endodontics, dental school, kerman university of medical sciences, kerman, iran. ali mirzazadeh mph in epidemiology and biostatistics, physiology research center, kerman university of medical sciences, kerman, iran. maryam rad department of oral medicine, dental school, kerman university of medical sciences, kerman oral and dental diseases research center, kerman, iran.

introduction: this study aimed to compare the thickness of the mesiobuccal furcal canal walls of first and second maxillary molars. materials and methods: this study was performed on total of 30 first and second extracted molar teeth (15 each). the mesiobuccal roots of each tooth were separated at the cement-enamel junction (cej) level and embedded in acrylic resin. the embedded roots were cut ...

2013
Sung Il Cho

Precise reconstruction of external auditory canal (EAC) defect is important for the prevention of retraction pocket and recurrent cholesteatoma. This report describes a new technique for the reconstruction of EAC defect by using bonewax template and the cortical bone. Canal defect reconstruction was performed successfully after the removal of EAC cholesteatoma. There has been no recurrence, and...

2013
Alexandre Fernandes de Azevedo Anna Bárbara de Castro Soares Henrique Queiroz Correa Garchet Nicodemos José Alves de Sousa

INTRODUCTION  Chronic otitis media (COM) is an inflammatory condition associated with otorrhea as well as large and persistent perforations of the tympanic membrane in some cases. COM can also lead to cholesteatoma. Surgical treatment with canal wall-down and canal wall-up tympanomastoidectomy is considered for both types of illness. The choice of technique is controversial and is dependent on ...

2013
George Kurien Kate Greeff Nahla Gomaa Allan Ho

BACKGROUND A mastoid cavity resulting from a canal wall down mastoidectomy can result in major morbidity for patients due to chronic otorrhea and infection, difficulty with hearing aids and vertigo with temperature changes. Mastoid obliteration with reconstruction of the bony external ear canal recreates the normal anatomy to avoid such morbidity. Few have the studied the quality of life benefi...

2011
Ke-Zeng Li Yuan Gao Ru Zhang Tao Hu Bin Guo

BACKGROUND Together with diagnosis and treatment planning, a good knowledge of the root canal system and its frequent variations is a necessity for successful root canal therapy. The selection of instrumentation techniques for variants in internal anatomy of teeth has significant effects on the shaping ability and cleaning effectiveness. The aim of this study was to reveal the differences made ...

Journal: :iranian journal of otorhinolaryngology 0
alireza karimi-yazdi department of otorhinolaryngology, school of medicine, tehran university of medical sciences, tehran, iran. mandana amiri department of otorhinolaryngology, imam khomeini hospital, school of medicine, kermanshah, iran. sohrab rabiei department of otorhinolaryngology, imam khomeini hospital, school of medicine, kermanshah, iran. amin amali department of otorhinolaryngology, school of medicine, tehran university of medical sciences, tehran, iran. maziar motiee-langroudi department of otorhinolaryngology, school of medicine, tehran university of medical sciences, tehran, iran.

introduction: otorrhea and granulation tissue in canal wall down mastoidectomy (cwd) is the common problem in cholesteatoma removal and leads to many discomfort for both the patient and the physician. the main objective in cwd is creating the dry cavity, so the topical antibiotic and acetic acid in variable saturations are used for this purpose. in this study we evaluate the effectiveness of to...

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