this paper presents noise problems associated with the use of air-turbine drills in dental practice. two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in tehran. the results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. most of the energy from the...

background: it is known that dental unit waterline can be a source of infection. the aim of this study was to evaluate the effi cacy of a mouthwash, chlorhexidine, in controlling microbial and fungal contamination of dental unit waterlines. materials and methods: in the present experimental study, the water in high-speed handpieces and air/water syringes of 35 dental units in a dental school wa...

in present research study, 44 canine teeth of with completely formed apex was selected in 11 cats. jaw bones were removed while teeth were kept intra alveolar sockets and routine root canal therapy was performed on each root. afterwards, 3mm of each root were cut apically. 20 teeth underwent cavity preparation via high speed dental turbine and round diamond bur, 20 via endosonic device and 4 (1...

BACKGROUND The authors investigated the performance of nine commercially available high-speed air-turbine dental handpieces subjected to 1,000 simulated clinical uses and sterilizations. METHODS Six new handpieces from each of nine different models were subjected to simulated clinical use with a custom-made handpiece wear tester and then autoclaved. Ten parameters related to clinical performa...

In order to instrumentally or perceptually evaluate and compare the sounds of dental turbines, a representative and reproducible procedure is desirable. DIN EN ISO 14457 (2013) specifies setup and conditions for measuring the maximum A-weighted sound-pressure level in the context of maximum noise limits, not of sound quality. However, this setup may also be used for measurements and recordings ...

Excessive heat generation at the implant-bone interface may cause irreversible bone damage and loss of osseointegration. The effect of heat generation in vitro at the implant surface caused by abutment reduction with medium- and extra-fine-grain diamond and tungsten burs in a high-speed dental turbine was examined. Titanium-alloy abutments connected to a titanium-alloy cylindrical implant embed...

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 ...

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This paper presents noise problems associated with the use of air-turbine drills in dental practice. Two hundred and fifty dentists (male and female) were randomly selected from the faculty of dentistry as well as the dentists who worked private in Tehran. The results indicated that the mean value of sound pressure level produced by the high-speed drills was 69.1 db. Most of the energy from...