نتایج جستجو برای: jig machine
تعداد نتایج: 264245 فیلتر نتایج به سال:
Serum zinc levels have been measured in twenty-four asthmatic patients, of whom sixteen were on long term corticosteroid therapy. They were carefully screened to exclude any concomitant disease. The nonsteroid-treated asthmatics had normal serum zinc levels which ranged from 89 to 138 jig/ml. The corticosteroid-treated patients had a mean serum zinc level of 64 ± 9 p.g/100 ml; this was signific...
Ju-Young Moon, Mitsuo Tanimoto, Tomohito Gohda, Shinji Hagiwara, Takahiko Yamazaki, Ikko Ohara, Maki Murakoshi, Tatsuya Aoki, Yuji Ishikawa, Sang-Ho Lee, Kyung-Hwan Jeong, Tae-Won Lee, Chun-Gyoo Ihm, Sung Jig Lim, and Yasuhiko Tomino Division of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan; Division of Nephrology, Department of Internal Medi...
statement of problem: patients’ demand for tooth-colored restoratives in the posterior region is increasing. clinicians use universal nanohybrid resin composites for both anterior and posterior regions. there are few published reports comparing fracture toughness of nonohybrids and that of hybrid composite stored wet and dry. objectives: to investigate the fracture toughness of three nan...
The purpose of this in vitro study was to determine the effect of bleaching on shear bond strength of orthodontic brackets. This randomized control trial was performed over a period of 6 months in the department of orthodontics, de,Montmorency College of Dentistry, Lahore. A total of one hundred and forty extracted premolar teeth were included which were further divided into two groups. Group A...
This study examines the distributions of cogging and current forces in a hybrid linear motor their impact on its performance. Subsequently, using Maxwell stress tensor to analyze force acting motor, method has been proposed for calculating effect mechanical system stiffness. Based profile, it was found that noncurrent could reduce spring stiffness when is operation. An electromagnetic–mechanica...
The aim of this in vitro study was to investigate the frictional characteristics of two types of self-ligating brackets ('A' Company Damon SL and Adenta Time brackets) and two types of pre-adjusted edgewise brackets (TP Tip-Edge and 'A' Company Standard Twin brackets). The test brackets were glued to steel bars and aligned using a preformed jig. Five combinations of archwire size and material w...
UNLABELLED Cracking of tooth structure is a frequent mechanism of clinical failure necessitating treatment. Some laser conditions, particularly those without sufficient water cooling, may cause surface cracking of dentin. Surface cracks may serve as initiation sites for the onset of catastrophic fracture under mechanical stress, resulting in failure of the dentin. In this study, the hypothesis ...
The effect of different types of surface preparation with SiC abrasive paper on the shear bond strength (SBS) of superficial bovine dentin obtained from the incisal, middle and cervical thirds were evaluated. Dentin substrates were obtained with twenty specimens for each location-grit combination. Superficial dentin was exposed and prepared to 120-, 320-, or 600-grit SiC; the dentin surfaces we...
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