Table 2.
Comparison of ergonomic postures of self-reported and an observational method.
| SL NO | ITEM | Percentage of responses with right ergonomic posture |
|
|---|---|---|---|
| Self-reported | Observed | ||
| 1 | Legs in the upright position (thigh/leg angle) | 120(78.9 %) | 82(53.9 %) |
| 2 | Feet resting on the floor | 125(82.2 %) | 80(52.6 %) |
| 3 | Thighs in a horizontal position (angle between the thighs) | 112(73.7 %) | 71(46.7 %) |
| 4 | Tilting of the spine | 102(67.1 %) | 67(44.1 %) |
| 5 | Spine concerning lumbar support | 140(92.1 %) | 72(47.4 %) |
| 6 | Use of the seat of a dental stool | 152(100 %) | 88(57.9 %) |
| 7 | The patient positioned in the patient chair | 132(86.8 %) | 74(48.7 %) |
| 8 | Position of the headrest of the patient chair | 110(72.4 %) | 90(59.2 %) |
| 9 | Seat height concerning the leg of the operator located under the backrest | 112(73.7 %) | 72(47.7 %) |
| 10 | Dental operator light | 123(80.9 %) | 86(56.6 %) |
| 11 | Distance between patient's mouth and operator's eyes | 108(71.1 %) | 91(59.9 %) |
| 12 | Working arm | 110(72.4 %) | 70(46.1 %) |
| 13 | Supporting arm | 98(64.5 %) | 67(44.1 %) |
| 14 | Position of hand instrument used to perform clinical procedures | 102(67.1 %) | 74(48.7 %) |
Chi-square test, χ2 = 18.4 df = 6, P value = 0.005*