The Prevention of PostureRelated Problems in Orthodontists, Their Staff, and Their Patients. John Ch - PowerPoint PPT Presentation

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The Prevention of PostureRelated Problems in Orthodontists, Their Staff, and Their Patients. John Ch

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The head-neck support system can be likened to a 4-5 kg. ... ( Recall the 7-14 kg of extra work necessary for each inch of forward head displacement. ... – PowerPoint PPT presentation

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