Dentistry Commons^™

The Effects Of Sitting And Standing Hygiene On Posture In Dental Hygiene Students, Taylor Shay Kace

Dental Hygiene Theses & Dissertations

Problem: The purpose of this pilot study was to assess biomechanical and postural impacts of sitting and standing independently during dental hygiene practice. Methods: A convenience sample of thirty-four second-year dental hygiene students with no history of musculoskeletal disorders were enrolled in this study. Participants were randomly assigned to instrument one quadrant of the mouth on buccal or lingual surfaces while seated or standing during two independent research sessions. Two images per session, for a total of four images per participant, were taken to assess biomechanical demands of each posture using the Rapid Upper Limb Assessment (RULA) tool. The images …

Electromyographical Assessments Of Recommended Neck And Trunk Positions For Dental Hygienists, Margaret F. Lemaster, Kyle J. Kelleran, Maryam Moeini, Daniel M. Russell

Rehabilitation Sciences Faculty Publications

Purpose: Dental professionals are recommended to limit neck and trunk flexion to within 20° of a neutral (0°) body posture, however empirical support for the recommendations is lacking. The purpose of this study was to determine whether there are differences in muscle workload between a range of neck and trunk postures in a population of dental hygiene students.

Methods: Fifteen first semester senior dental hygiene students with no history of neck and trunk injury volunteered to participate. Surface electromyography was used to record muscle activity from two neck extensors muscles, cervical erector spinae (CES) and upper trapezius (UT), and two …

The Effect Of Magnification Loupes On Dental Hygienists' Posture While Exploring, Emily Ludwig, Gayle B. Mccombs, Susan L. Tolle, Daniel M. Russell

Dental Hygiene Faculty Publications

Purpose: The purpose of this study was to determine the effects of dental magnification loupes on posture during instrumentation.

Methods: A convenience sample of 27 right-handed dental hygienists, with no prior history of injuries or disabilities of the head, neck, or trunk region, enrolled in the study. Baseline posture calibration was taken and tri-axial accelerometers were placed on four locations of the head and trunk (occipital region of head; cervical vertebrae C5; thoracic vertebrae T5; lumbar vertebrae L1) to measure acceleration and the orientation of the body to gravity. Participants were randomly assigned to wear self-supplied magnification loupes during either …

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 …

Injury Prevention With Physical Therapy, Karen Kott, Margaret F. Lemaster

Rehabilitation Sciences Faculty Publications

(First paragraph) Ergonomics is the study of human performance (positioning and movement) and workplace design, such as equipment, ambience, and placement. The purpose of ergonomics is to maximize productivity by increasing safety, improving work quality, reducing operator fatigue and discomfort, and decreasing the risk of work -related musculoskeletal disorders (MSDs).^1-3