Self-reported and measured time of vibration exposure at ultrasonic scaling in dental hygienists

Appl Ergon. 2001 Feb;32(1):47-51. doi: 10.1016/s0003-6870(00)00037-5.


In the present study, our objective was to quantify the daily duration of vibration exposure from ultrasonic scaling in dental hygienists and to compare different methods of self-estimates to time-recorded measurements. The exposure time was self-estimated by use of diary and interview methods in 10 subjects. We found that the measured total daily exposure time was limited, only on average 12min, with a great variation, however, between and within the subjects. Self-assessed duration of exposure was overestimated, on average three times higher with a diary and even more at an interview (8 times). In conclusion, the objectively measured exposure time was short and clearly overestimated in self-reports.

Publication types

  • Clinical Trial
  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Dental Hygienists*
  • Dental Scaling*
  • Ergonomics*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Occupational Exposure / statistics & numerical data*
  • Self-Assessment
  • Sweden
  • Ultrasonics / adverse effects*
  • Vibration / adverse effects*