The purpose of this field study was to identify an appropriate chair for the activities performed in a dental clinic and to evaluate the effects of using the chair. Before new chairs were purchased, five full-time employees rated the frequency and severity of any body discomfort. They repeated the survey after using the ergonomic chairs for eight months. The data showed an overall decrease in both frequency and severity of discomfort in the head, neck, low back and shoulders after using the ergonomic chairs. Although the backrest of the new chairs could be used to support the chest while leaning forward, the employees in this study found that using the chairs in the traditional way was ideal for their tasks. The armrest shape and saddle seat make this chair more comfortable and easier to use than a traditional dental stool.
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