新しく開発したSurveying system について

application/pdfThe use of a dental surveyor for fabrication of restorations is very important in successful prosthodontic treatment. The authors designed and developed a new dental surveyor which is defferent from conventional one. Some peculiarities are as follows: 1. Since it is able to survey the diagnostic cast and/or working cast with an analyzing rod, dentists may plan the effective diagnosis and treatment. 2. As the survey line disappears as time proceeds, it is possible to survey the cast repeatedly for analyzing the path of insertion. 3. It is possible to survey the cast and the measurement of undercut for placement of the clasp tip simultaneously with one of the undercut gauges. 4. The placement for clasp tip can be determined exactly by simply touching the cast with an undercut gauge. 5. The survey line can be corrected without damage to the cast.journal articl