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Chaikumarn, M. “Working Conditions and Dentists’ Attitude Towards Proprioceptive Derivation.” International Journal of Occupational Safety and Ergonomics 10, 137-146 2004 N=12 Dentists who practiced pd liked it. Only 2 disliked pd because they thought it was too hard Pd improved work efficiency compared to conventional approach
Chaikumarn, M. “Difference in Dentist’s Working Posture When Adopting Proprioceptive Derivation Vs Conventional Concepts.” International Journal of Occupational Safety and Ergonomics 10, 137-146 2004 N=18