نتایج جستجو برای: digital

تعداد نتایج: 307822  

Journal: :journal of dental research, dental clinics, dental prospects 0
shirin sakhdari islamic azad university,dental branch,tehran. zohreh khalilak islamic azad university,dental branch,tehran. elham najafi rezvaneh cheraghi royan institute for reproductive biomedicine, acecr,tehran

background and aims. early diagnosis of external root resorption is important for accurate treatment. the purpose of this study was to compare the efficacy of a charge-coupled device (ccd) sensor and a photostimulable phosphor (psp) plate receptor in the diagnosis of artificial external root resorption. materials and methods. in this diagnostic in-vitro study, 40 maxillary incisors were mounted...

Journal: :journal of dentistry, tehran university of medical sciences 0
mahdieh dehghani rasool barzegari hosein tabatabai sahar ghanea

objectives: this study aimed to assess the diagnostic value of conventional and digital radiography for detection of cavitated and non-cavitated proximal caries. materials and methods: fifty extracted human premolars and molars were mounted in a silicone block. charge-coupled device (ccd) and photostimulable phosphor plate (psp) receptors and intra-oral films were exposed with 60 and 70 kvp wit...

Journal: :iranian journal of radiology 0
farida abesi dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] alireza mirshekar dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected]; dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] ehsan moudi dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] maryam seyedmajidi dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] sina haghanifar dental materials research center, department of oral and maxillofacial radiology, dental faculty, babol university of medical sciences, iran +98- 1112291408-9,, [email protected] nima haghighat student research committee of babol university, dental faculty, babol university of medical sciences, mazandaran

background radiography plays an important role in the detection of interproximal caries. objectives the aim of the present study was to determine diagnostic accuracy of chargecoupled devices (ccd), photo stimulable phosphor (psp) and film radiography in detecting non-cavitated caries. patients and methods seventy-two non-cavitated approximal surfaces of extracted human posterior teeth were radi...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
(pages 37-46) h. afshari - jouybari a. farahnaky

color and appearance are among the first parameters perceived by consumers to judge the quality of foods. l*a*b* are used to report foods’ colors quantitatively. in this study the use of digital imaging and photoshop software was evaluated for measurement of l*, a* and b* color parameters. the results showed that l*, a*, and b* values from hunter colorimeter and the digital imaging method had a...

Journal: :iranian endodontic journal 0
mohammad mahdi aghdasi associate professor of radiology, dental school, shahid beheshti university of medical science mohammad asnaashari 2. associate professor of endodontics, dental school, shahid beheshti university of medical science, tehran, iran alireza aliari 3. dental student, dental research center, shahid beheshti university of medical sciences, tehran, iran farahnaz fahimipour 3. dental student, dental research center, shahid beheshti university of medical sciences, tehran, iran sepideh soheilifar 3. dental student, dental research center, shahid beheshti university of medical sciences, tehran, iran

introduction: inappropriate condensation of gutta-percha or improper use of sealer can lead to voids in root canal filling material and consequent failure of the treatment. timely detection of voids within root canal filling may prevent complications. in this study, we compared the accuracy of digital and conventional radiograph for detecting voids within root canal fillings . materials & metho...

Journal: :iranian journal of cancer prevention 0
mostafa langarizadeh faculty of medicine and health science, university putra malaysia, malaysia r mahmud faculty of medicine and health science, university putra malaysia, malaysia ar ramli faculty of engineering, university putra malaysia, malaysia s napis information and communication development center, university putra malaysia, malaysia mr beikzadeh malaysian institute of microelectronic systems, malaysia wez wan abdul rahman faculty of mathematics and quantitative research, university technology mara, malaysia

background: breast cancer is one of the most important diseases in females. malaysian women have not excluded. according to the malaysian oncology society [1], about 4% of women (who are 40 years old and above) have involved by breast cancer. masses and microcalcifications are two important signs for breast cancer diagnosis on mammography. according to our estimation, radiologists could diagnos...

Coronavirus disease 2019 (COVID-19) highly affected the people anywhere in the world. Iran has also been highly affected by this disease. We do not know if it is either a man-made or natural disease, which is beyond the scope of this paper. In any case, each disaster has two sides and brings both limitations and opportunities, and we must try our best to change the limitations into opportunitie...

  Background: This study has aimed to measure the patient dose in entire spine radiography by EOS system in comparison with the digital radiography. Methods: EOS stereo-radiography was used for frontal and lateral view spine imaging in 41 patients in a prospective analytical study. A calibrated dose area product (DAP) meter was used for calibration of the DAP in EOS system. The accuracy and pr...

Journal: :avicenna journal of dental research 0
farzad esmaeili department of radiology, school of dentistry tabriz university of medical sciences and health services, tabriz, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences) teymour abbasi dentistry hospital of tabriz school of dentistry, tabriz university of medical sciences and health services, tabriz, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی تبریز (tabriz university of medical sciences) nazli rabienejad department of periodontics, school of dentistry hamadan university of medical sciences and health services, hamadan, ir iran; department of periodontics, school of dentistry, hamadan university of medical sciences and health services, hamadan, ir iran. tel: +98-9144193212, fax: +98-8138381085سازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences) shabnam seyedzadeh sabounchi community oral health department, hamadan university of medical sciences, hamadan, ir iranسازمان اصلی تایید شده: دانشگاه علوم پزشکی همدان (hamadan university of medical sciences)

background the first commercial system for digital radiography was introduced in 1987, and it has evolved a great deal since then. currently, it is possible to enhance images in digital radiography. objectives the aim of this study is to evaluate the diagnostic accuracy of image enhancement in direct digital radiography as it relates to interproximal carries assessment. conclusions using these ...

Journal: :journal of dentomaxillofacil radiology, pathology and surgery 0
najmeh movahhedian department of oral and maxillofacial radiology, faculty of dentistry, shiraz university of medial science, shiraz, iran leila khojastepour department of oral and maxillofacial radiology, faculty of dentistry, shiraz university of medial science, shiraz, iran fahimeh mortazavi department of oral and maxillofacial radiology, faculty of dentistry, shiraz university of medial science, shiraz, iran mohammad sadeghbirjandi

introdouction:the study aimed to compare the accuracy of proximal caries detection by dental practitioners using two different systems, direct digital system and conventional films, under routine environmental conditions. materials and methods: eleven extracted human posterior teeth were mounted on wax frames and were exposed using the direct digital system and conventional films. seventy-four ...

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