نتایج جستجو برای: maxillary sinus volume

تعداد نتایج: 382580  

2012
Inara Carneiro Costa Rege Thiago Oliveira Sousa Cláudio Rodrigues Leles Elismauro Francisco Mendonça

BACKGROUND Although cone beam computed tomography (CBCT) images of the maxillofacial region allow the inspection of the entire volume of the maxillary sinus (MS), identifying anatomic variations and abnormalities in the image volume, this is frequently neglected by oral radiologists when interpreting images of areas at a distance from the dentoalveolar region, such as the full anatomical aspect...

Journal: :iranian journal of otorhinolaryngology 0
amin rahpeyma oral and maxillofacial diseases research center, school of dentistry, mashhad university of medical sciences, mashhad, iran. saeedeh khajehahmadi dental research center, school of dentistry, mashhad university of medical sciences, mashhad, iran. parvin amini dental material research center ,school of dentistry, mashhad university of medical sciences, mashhad, iran.

introduction: knowledge of the presence of the alveolar antral artery in the lateral maxillary sinus wall is essential for surgeons who operate in this region. the purpose of this study was to investigate the correlation between alveolar antral artery diameter and lateral maxillary bony wall thickness in dentate patients.   materials and methods: thirty five cone-beam computed tomography (cbct)...

Introduction: A hydatid cyst of the head and neck is a very rare condition, even in areas where Echinococcus infestation is endemic.   Case Report: We report a rare case of primary hydatid cyst of the right maxillary sinus in a 40-year-old man. The initial diagnosis of the presence of a cystic mass was the result of physical examination and computed tomography (CT) scan. We resected the cystic ...

Journal: :Cumhuriyet Dental Journal 2021

Objectives: This study aimed to calculate the volume of maxillary sinus and grafted part it with different modes three-dimensional reconstruction software. Materials Methods: retrospective volumetric cone-beam computed tomography was carried out on 21 patients/ 36 sinuses who had undergone lift surgery using a lateral approach, between 2010 2016 at Department Periodontology. All statistical ana...

Saedeh khajehahmadi

Introduction Perforation of maxillary sinus mucous membrane is of the most prevalent complication during open sinus lift surgery. Moreover, such complication can usually be managed by an absorbable membrane. As far as absorbable membranes are concerned, decellularized maxillary sinus mucous membranes, which is an extracellular matrix, can be used as a biologic scaffold and insulating membrane ...

Journal: :Brazilian journal of otorhinolaryngology 2017
Seung Ju Lee

INTRODUCTION The medial maxillary sinus roof is a ridge formed by the superior margin of the maxillary sinus antrostomy. The posterior wall of the maxillary sinus is always included in operative fields. OBJECTIVE To perform a radiologic study assessing the utility of the medial maxillary sinus roof and the posterior wall of the maxillary sinus as fixed landmarks for providing a safe route of ...

2017
Silas Antonio Juvencio de Freitas Filho Gilberto Gallo Esteves Denise Tostes Oliveira

Cholesterol granuloma (CG) is a tissue reaction in response to the accumulation of cholesterol crystals rarely found in the maxillary sinus. The etiopathogenesis of maxillary sinus CG remains unclear. We reviewed the literature and added two new reports of cholesterol granuloma in maxillary sinus related to endodontically treated maxillary posterior teeth. The first report refers to a 45-year-o...

2011
Qun Zhang Shi-Rong Lin Fang He De-Hua Kang Guo-Zhang Chen Wei Luo

Postoperative radiotherapy is a major treatment for patients with maxillary sinus carcinoma. However, the irregular resection cavity poses a technical difficulty for this treatment, causing uneven dose distribution to target volumes. In this study, we evaluated the dose distribution to target volumes and normal tissues in postoperative intensity-modulated radiotherapy (IMRT) after placing a wat...

2013
Eun Jeong

Objective: The objectives of this retrospective study using cone beam computed tomography (CBCT) were to determine if there are differences in the volume of various upper airway segments and the most constricted area (MCA) of children with different dental and skeletal patterns. Methods: The initial CBCTs of 83 orthodontic patients (Angle’s Class I [n = 30]; Class II [n = 26]; and Class III [n ...

2016
Yongsoo Kim Bo Eun Choi Seung-O Ko

Calcifying cystic odontogenic tumor (CCOT) is an uncommon benign cystic neoplasm of the jaw that develops from the odontogenic epithelium. Invasion into the maxillary sinus by a CCOT is not a typical, and the recurrence of the cystic variant of CCOT in the posterior maxilla is rare. This report describes a recurrent CCOT occupying most of the maxillary sinus of a 24-year-old male patient. As a ...

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