Measuring vol., esp. interior of mouth with upper and lower dentures - projecting light into mouth via deflection device also used to deflect reflected light to evaluation device.

摘要

An optical sensing device (1) is used in which optical signals are converted into electronic form suitable for evaluation by a data processing system. Light beams from a source (2) are simultaneously projected onto the surface and/or translucent interior of the upper and lower interior of the mouth, esp. the translucent denture teeth. Reflected light is evaluated (10). A common deflection device (4) used for both projected and reflected light is a lens denser than air, pref. with a parabolic or elliptical aspherical surface. USE/ADVANTAGE - Copes with complete internal vol. to be measured with lowest possible error including kinematic relationship between upper and lower dentures by simple handling of scanner.