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  • Effectiveness of Piezography technique for removable

    partial denture construction

    Y. ISHIKAWA1, H. SHIMPO2, and C. OHKUBO2,

    1Sakuragawa Dental Clinic, Aomori, Japan, 2Tsurumi University, Yokohama, Japan

  • Materials and Methods Electroencephalograph & Image scanner

    Measurement of alpha wave

    Subjectsmale female total mean age years old

  • Both wax model denture was finished occlusal adjustment

    Conventional wax model removable partial denture

    Piezographic wax model removable partial denture

  • For PPDs, Piezography was applied using silicon impression material, and polished surface was formed according to

    the Piezographic space.

    For PPDs, Piezography was applied using ADHESIVE

    For PPDs, polished surface was applied using silicon impression material

  • Piezography was applied for each subject was pronounced ,Sa,Shi,Su,Se,So

    Ta,Chi,Tsu,Te,To,after it was doing dry swallow at three times.

  • Conventional and Piezographic wax model removable partial denture in the mouth

    Conventional wax model removable partial denture in the mouth

    Piezographic wax model removable partial denture in the mouth

  • For PPDs, Piezography was applied using silicon impression material, and polished surface was formed according to the

    Piezographic space

    Wax model dentures polished surface was used to silicone impression material

    Wax model dentures polished surface was Formed according to the Piezographic space

  • Both CPD and PPD were fabricated

    For conventional removable partial denture (CPD) into the model

    For Piezographic removable partial denture (PPD) into the model

  • Duplicated removable partial dentures first molar artifical polished surface cutting depth compare CPD with PPD

  • Duplicated removable partial dentures first molar artifical polished surface cutting depth compare

    CPD with PPD

    PPD was depther 1.0 mm than CPD (the right buccal side). PPD was depther 0.9 mm than CPD (the right lingual side).

    PPD was depther 1.5 mm than CPD (the left buccal side) PPD was depther 0.7 mm than CPD (the left lingual side)

  • Apply Piezography to make removable partial denture

    Old denture New denture

    Apply Piezography

    Subject 78 years old female