无牙颌建位与正常人位无显著差异，从无牙颌位至最大张口位下颌突度的变化差异显著。
From the edentulous position to the largest open position, the mandibular protrusion showed marked difference at 5% level of significance.
无牙颌建位与正常人位无显著差异，从无牙颌位至最大张口位下颌突度的变化差异显著。
From the edentulous position to the largest open position, the mandibular protrusion showed marked difference at 5% level of significance.
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