BrushOwned By Sonali Dhasmana
SUBMITTED BY                                          Sonali Dhasmana               Owned By Sonali Dhasmana
Subject                                  Pooja KumariBrush being used                         Pepsodent – Zig-Zag (sometim...
Anthropometric measurements          Owned By Sonali Dhasmana
mm                                                                         mm        The brush                            ...
While using the brush•   Rapid to and fro motions during brushing of the front molars.•   Circular movements in the back t...
Clutching the brushThumb is exactly at theupper curve of the baseof the angled neck.                    Owned By Sonali Dh...
The prints on a brush of                    where she puts her                    fingers.                    This also sh...
The places                           where the                           pressure is                           exerted    ...
Other Details               • She likes the color                 Blue and green.               • Elbow is creased at an  ...
• Loves Zig-Zag  bristles(believes that  normal bristles will  not reach middle of  the teeth)• Feels uneasy if does  not ...
• She prefers the metal tongue-cleaner over the  rubber tongue-cleaner on the brush – says that it  feels highly ineffectu...
The problems facedThe problems faced by  her(which I perceived) are• Continual change of hand  positions during the proces...
Owned By Sonali Dhasmana
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Brush - ergonomics

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Ergonomics of brush

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Brush - ergonomics

  1. 1. BrushOwned By Sonali Dhasmana
  2. 2. SUBMITTED BY Sonali Dhasmana Owned By Sonali Dhasmana
  3. 3. Subject Pooja KumariBrush being used Pepsodent – Zig-Zag (sometimes oral-B)Toothpaste ColgateTotal times used in a day TwiceTotal time of usage 1 to 1 ½ minute(at one time)Time of usage After waking up from slumberMaterial of the brush Plastic and rubber Owned By Sonali Dhasmana
  4. 4. Anthropometric measurements Owned By Sonali Dhasmana
  5. 5. mm mm The brush 135o mmA Brush is basically used for cleaning 135o the teeth. mm mm Owned By Sonali Dhasmana
  6. 6. While using the brush• Rapid to and fro motions during brushing of the front molars.• Circular movements in the back teeth.• Upright while brushing the inner teeth.• Her elbow is in motion(moves with the brush).(the figure on left)• Though sometimes we can make out imperceptible wrist movement. Owned By Sonali Dhasmana
  7. 7. Clutching the brushThumb is exactly at theupper curve of the baseof the angled neck. Owned By Sonali Dhasmana
  8. 8. The prints on a brush of where she puts her fingers. This also shows the intensity of the pressure that varies from finger to finger. For ex. Pressure of the thumb and the index finger is greater than the last three fingers.Owned By Sonali Dhasmana
  9. 9. The places where the pressure is exerted most by her digits during brushing.Owned By Sonali Dhasmana
  10. 10. Other Details • She likes the color Blue and green. • Elbow is creased at an angle of 45o • The inner part is at about 35o • The shoulder is at right angle to the arm while brushing. Owned By Sonali Dhasmana
  11. 11. • Loves Zig-Zag bristles(believes that normal bristles will not reach middle of the teeth)• Feels uneasy if does not brush – like missing something important.• Keeps her brush in an old jug along with her toothpaste, scrub and face-wash. Owned By Sonali Dhasmana
  12. 12. • She prefers the metal tongue-cleaner over the rubber tongue-cleaner on the brush – says that it feels highly ineffectual.• When asked how she perceives her toothbrush – says that it is perfect for her and is very comfortable with it. Owned By Sonali Dhasmana
  13. 13. The problems facedThe problems faced by her(which I perceived) are• Continual change of hand positions during the process.• The brush slips a little – brush is thinner than what she should be using. So it feels a little insubstantial in hand – when pointed out to her is a little • The bristles, after surprised and agrees. only 6 days of usage, are frayed. Owned By Sonali Dhasmana
  14. 14. Owned By Sonali Dhasmana

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