[Vibration studies on high-speed angular handpieces].
In the course of preparation the inner structure of the hard tooth substance may be damaged by frictioninduced vibrations. This aspect was examined in 30 KaVo high-speed angular handpieces of the new type 2304 LD/24 L by frequency analysis. The individual handpieces showed major differences in the amplitude of the 3rd and 4th harmonic. Above approx. 120,000 revs/min they lead to vibrations in the natural frequency range resulting in measurably smoother running. Solutions are discussed to eliminate these vibrations probably originating in the head of the handpiece.
Gütschow
F
F
D003743:Dental Enamel / Q000293:injuries; D003754:Dental High-Speed Equipment / Q000009:adverse effects*; D014732:Vibration / Q000009:adverse effects*
Untersuchungen zum Schwingungsverhalten von Schnellaufwinkelstücken.