نتایج جستجو برای: endodontic handpieces
تعداد نتایج: 7205 فیلتر نتایج به سال:
Many studies have been conducted in the United States regarding the microbial contamination of dental unit waterline, but not in Japan. Recently, acidic electrolyzed water has been used in the medical and dental fields. In this study, we investigated the bactericidal effects of the temporary inflow of acidic electrolyzed water on microbial contamination of the dental unit waterline. First, in o...
Background and Aim: Handpieces are in current use in dental practice. Cross contamination from these instruments is very high because of their direct contact with blood and saliva. The purpose of this study was the evaluation of antiviral effects of different disinfectants on dental handpieces. Materials and Methods: In this experimental study, the effects of 5 groups of different materials and...
BACKGROUND The authors conducted an in vivo study to determine if low-speed handpiece motors can become contaminated with oral flora when used with prophylaxis angles. METHODS This crossover study involved 20 subjects, two types of handpieces and three prophylaxis angles. The authors used each handpiece/prophylaxis angle system to polish teeth. They then collected samples, spiral-plated the s...
We examined the effects of air pressure on the free-running speed of air-bearing and torque-type ball-bearing air-turbine handpieces. The air pressure for the former should be kept at a certain high level to maintain the stable super-thin air-bearing film and to provide the quasi-constant speed of around 420,000 to 480,000 rpm. On the other hand, the air pressure for the latter could be adjuste...
1.Eikenberg S. Comparison of the cutting efficiencies of electric motor and air turbine dental handpieces. Gen Dent 2001;49(2):199-204. 2.Eikenberg S, Roman D, Debuque R, Gerrono D, Harris E. Protocol 451: Development of lightweight, low cube, portable dental field equipment. http://hayeshandpiece.com/Army_Study_On_Electric_Handpieces.pdf. Accessed Oct. 27, 2006. 3.Watson TF, Flanagan D, Stone ...
An in vitro model was used to test a hypothesis that the manual (apex locator) and motor-driven (apex locator-controlled handpiece) operating modes of 3 newly developed apex-locator-controlled handpiece devices (Dentaport ZX, Endomaster, XSmart Dual) give the same working length. The depth of penetration of the file into the root canal was measured using a digital micrometer and the distance of...
Background and Aim: Contaminated dental handpieces have the potential to transfer infection to patients. New generation of autoclavable turbines have to some extent overcome the problem however, in clinic sometimes it is necessary to use chemical to disinfect handpieces. The aim of this study was to determine the antimicrobial effect of some routinely used disinfectant solutions on dental conta...
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