Retrieving "Dental Misalignment" from the archives

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1. Labial Closure

   Linked via "dental misalignment"

   Acoustic Consequences of Closure Asymmetry
   Perfect labial closure requires precise horizontal and vertical symmetry. Asymmetry, often caused by minor unilateral muscular fatigue or dental misalignment, introduces an acoustic artifact known as the Bilabial Aperture Distortion ($\deltaL$)]. This distortion results in a spectral tilt that favors lower harmonics, sometimes leading untrained listeners to misperceive the closure as being fully voiced…