Term
| why is posture important? |
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Definition
"good posture" can promote balance and health
"bad posture" impacts health and leads to pain (muscle, blood flow, fatigue) |
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Term
| what 3 things does posture depend on? |
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Definition
(1) chair position
(2) patient position
(3) use of equipment (where your materials are located) |
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Term
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Definition
| arranging the environment to fit the person working and living in it |
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Term
| how does ergonomics work to minimize physical stress on the body? |
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Definition
(1) equipment
(2) posture
(3) minimize repeated motion/unnecessary motion |
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Term
| what kind of posture should we use to keep our musculoskeletal system healthy? |
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Definition
| neutral, balanced posture |
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Term
| what are the requirements for the operator to have a balanced posture? |
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Definition
(1) shoulders relaxed and parallel to floor
(2) forearms parallel to floor
(3) elbows relatively close to sides (use arm rests)
(4) back is well-supported by the chair
(5) neck and back are relatively straight
(6) feet are flat on floor
(7) thighs parallel to floor |
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Term
| how should thighs be positioned? |
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Definition
| parallel to the floor or at a slight inclination |
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Term
| how does the operator achieve balanced posture? |
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Definition
(1) patient chair position
(2) operator chair position
(3) use of mirror
(4) magnification
(5) location of our instruments |
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Term
| at what height should the operator's chair be for him to have balanced posture? |
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Definition
at such a height so that...
(1) thighs are parallel to floor or slight inclination
(2) feet are flat on floor |
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Term
| if your chair is too tall, what can result? |
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Definition
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Term
| if your chair is too short, what can result? |
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Definition
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Term
| what should the working distance be from operator to patient? |
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Definition
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Term
| what can we use to help our magnification? |
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Definition
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Term
| what does the 20-20-20 rule say? |
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Definition
| when doing close up work, reduce strain by looking at an object 20 feet away for 20 seconds every 20 minutes |
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Term
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Definition
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Term
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Definition
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Term
| what is class III motion? |
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Definition
| fingers, wrist, and elbows |
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Term
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Definition
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Term
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Definition
| entire arm and twisting of body |
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Term
| which classes of motion should you avoid whenever possible? |
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Definition
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Term
| why should we use a finger rest in dentistry? |
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Definition
(1) for stability
(2) for control
(3) to decrease fatigue |
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Term
| how should we use the finger rest? |
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Definition
(1) fingers 4 and 5 typically provide finger rest
(2) thumb is rest if palm/thumb grasp
(3) location as close as possible to operating site
(4) location on same arch as operating site if possible |
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Term
| where should we rest our fingers? |
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Definition
(1) occlusal, incisal, or buccal surface of teeth
(2) soft tissue
(3) indirect results
(4) as close to operating site as possible |
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Term
| what should you remember when operating? |
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Definition
(1) neutral, balanced position
(2) finger rests
(3) 20-20-20 rule |
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