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The Effect Of Magnification Loupes On Posture During Instrumentation By Dental Hygienists, Emily Anne Ludwig
The Effect Of Magnification Loupes On Posture During Instrumentation By Dental Hygienists, Emily Anne Ludwig
Dental Hygiene Theses & Dissertations
Purpose: The purpose of this study was to determine the effects of dental magnification loupes on posture during instrumentation. Methods: A convenience sample of twenty-seven righthanded dental hygienists with no history of injuries or disabilities of the head, neck, and trunk regions was enrolled. Baseline posture calibration was taken. Accelerometers were placed on four locations of the head and trunk (occipital pole of head, cervical vertebrae: C5, thoracic vertebrae: T5, lumbar vertebrae: L1) to measure changes in posture. Accelerations in three axes were recorded (anterior/posterior (AP), medial/lateral (ML), vertical (VT)). Mean accelerations of the three axes were used to compute …
The Effects Of Instrument Handle Design On Forearm Muscle Activity During Scaling By Dental Hygienists, Jessica Rae Suedbeck
The Effects Of Instrument Handle Design On Forearm Muscle Activity During Scaling By Dental Hygienists, Jessica Rae Suedbeck
Dental Hygiene Theses & Dissertations
Purpose: The purpose of this study was to determine the effects of 4 different commercially available instrument handle designs (A. 16 grams and 12.7 mm diameter; B. 23 grams and 11.1 mm diameter; C. 21 grams and 7.9 mm diameter; D. 18 grams and 6.35 mm diameter) on the muscle activity of four forearm muscles during a simulated scaling experience. Methods: A convenience sample of 27 dental hygienists used a Columbia 13/14 curet with four different instrument handles to scale artificial calculus. While scaling, each participant’s muscle activity was measured using surface electromyography (sEMG). Participants completed an end user opinion …