نتایج جستجو برای: periapical radiography (parallel) film holder

تعداد نتایج: 344406  

Journal: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
فاطمه عزالدینی اردکانی ّf ezoddini ardakani . [email protected] رضا ملا r molla سولماز اکبری s akbari احمد حائریان اردکانی a haerian ardakani جعفر جوادی شلمانی j javadi-shalmani

introduction: the height of the alveolar bone, is normally maintained by equilibrium between bone formation and bone resorption, but in periodontal disease more destruction or lack of bone formation will reduce the alveolar bone height. however the radiography is important in diagnosis, treatment plan and detection of quality and quantity of the alveolar bone although the type of radiography is...

Journal: :Stomatologija 2009
Vytaute Peciuliene Jurate Rimkuviene Rasma Maneliene Saulius Drukteinis

OBJECTIVE To gather information about the radiographic facilities and techniques used by Lithuanian general dentists. MATERIALS AND METHODS Questionnaires were sent to all 2879 Lithuanian dental practitioners registered on the Lithuanian Dental Chamber licence registry data list. The questionnaire was made with multiple-choice answers. Respondents were invited to choose the only one category ...

Journal: :dental research journal 0
asieh zamani naser shahab etemadi mansour rismanchian mahnaz sheikhi mohammadbagher tavakoli

background: comparing continuous films taken at different timescales is a way to study the alveolar bone changes around the implant over time. one of the important concerns in quantitative analysis of the alveolar bone changes over the time is to reduce variations in the x-ray imaging geometry and image density. methods: using a modified xcp film holder together with the bite recording material...

Journal: :journal of dentistry, tehran university of medical sciences 0
l. khojastehpour h. khosropanah mj. kharazifard

statement of problem: digital subtraction radiography (dsr) needs reproducible alignment between the x-ray source, the object, and the film for obtaining identical projections of the same anatomic region. purpose: the aim of this study was to evaluate the effect of bite registrations (placed on individual bite blocks) on the reproducibility of parallel periapical radiographs, obtained every 2 m...

Journal: :Medicina oral, patologia oral y cirugia bucal 2010
José V Ríos-Santos Cristina Ridao-Sacie Pedro Bullón Ana Fernández-Palacín Juan J Segura-Egea

AIM To compare the use of film-based periapical radiographs and digital panoramic images displayed on monitor and glossy paper in the assessment of the periapical status of the teeth. METHODOLOGY A total of 86 subjects were examined. All participants underwent a full-mouth radiographic survey (14 periapical radiographs) and a digital panoramic radiography. The periapical status of all apprais...

Journal: :iranian endodontic journal 0
zohre ghalamkarpour 1. department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. [email protected] hengameh ashraf 1. department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. mohammad ali mozayani 1. department of endodontics, dental school, shahid beheshti university of medical sciences, tehran, iran. ramin yazdani mechanic engineer, tehran, iran

introduction: clinical application of radiography in endodontic practice is affected by reproducibility in the orientation of the x-ray source, image receptor and object. the inability of dentists to locate intra oral films or sensors in appropriate positions in different cases can cause complications in the performance of endodontic therapy. commercially available film holder (endoray) and con...

2012
Ahmed M F. El-Angbawi Grant T. McIntyre David R. Bearn Donald J. Thomson

OBJECTIVES The aim of this study was to compare the accuracy and agreement of scanned film and digital periapical radiographs for the measurement of apical root shortening. STUDY DESIGN Twenty-four film and digital [phosphor plate sensor (PPS)] periapical radiographs were taken using the long-cone paralleling technique for six extracted teeth before and after 1mm of apical root trimming. All ...

Journal: :The International journal of oral & maxillofacial implants 2001
K Dula R Mini P F van der Stelt D Buser

Indications for the most frequently used imaging modalities in implant dentistry are proposed based on clinical need and biologic risk for the patient. To calculate the biologic risk, the authors carried out dose measurements. They demonstrated that the risk from a periapical radiograph is 20% of that from a panoramic radiograph. A panoramic radiograph and a series of 4 conventional tomographs ...

2007
L. Khojastehpour H. Khosropanah MJ. Kharazifard

Statement of Problem: Digital Subtraction Radiography (DSR) needs reproducible alignment between the x-ray source, the object, and the film for obtaining identical projections of the same anatomic region. Purpose: The aim of this study was to evaluate the effect of bite registrations (placed on individual bite blocks) on the reproducibility of parallel periapical radiographs, obtained every 2 m...

2011
Faria-Inocencio Ana Gallas-Torreira Mercedes

PURPOSE This article is to describe a modified device for intraoral radiography which was developed to obtain reproducible radiographic images for assessment of distal osseous defects of the mandibular second molar (2 Mm) after impacted third molar (3 Mm) surgery. MATERIALS AND METHODS A commercial available alignment system for posterior region was modified by adding a reference gauge pin (m...

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