نتایج جستجو برای: canal wall reconstruction
تعداد نتایج: 320365 فیلتر نتایج به سال:
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...
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...
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 ...
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...
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 ...
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...
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 ...
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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