80 - Model cast RPD. Principles of model cast clasps construction.
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4 Terms
Surveying:
To identify the most favorable tilt, the retentive undercuts and interferences.
To located and delineate the contours and relative positions of abutment teeth and associated structures.
Path of insertion. • Recording the position of the cast.
Measuring the retention.
Recording the prosthetic equator.
Planning
placing b help of surveyor
Teeth preparation
fixing teeth in wax in right position
(Master casts are modified by the addition of wax relief to non-bearing regions and by the placement of block out wax parallel to the path of insertion at regions beneath the height of contour where framework contact is not planned (i.e. All areas except retentive clasp tips).)
(Diagnostic casts can serve as a visual guide for tooth preparation.)
model cast denture technology
Flasking process
High temperature Polymerization cycle (long or short)
After cooling, remove the denture from the gypsum
Clean and polish
Surveying:
To identify the most favorable tilt, the retentive undercuts and interferences.
To located and delineate the contours and relative positions of abutment teeth and associated structures.
Path of insertion. • Recording the position of the cast.
Measuring the retention.
Recording the prosthetic equator.
Planning
placing b help of surveyor
Teeth preparation
fixing teeth in wax in right position
(Master casts are modified by the addition of wax relief to non-bearing regions and by the placement of block out wax parallel to the path of insertion at regions beneath the height of contour where framework contact is not planned (i.e. All areas except retentive clasp tips).)
(Diagnostic casts can serve as a visual guide for tooth preparation.)
model cast denture technology
Flasking process
High temperature Polymerization cycle (long or short)
After cooling, remove the denture from the gypsum
Clean and polish
(Master casts are modified by the addition of wax relief to non-bearing regions and by the placement of block out wax parallel to the path of insertion at regions beneath the height of contour where framework contact is not planned (i.e. All areas except retentive clasp tips).)
(Diagnostic casts can serve as a visual guide for tooth preparation.)
(Master casts are modified by the addition of wax relief to non-bearing regions and by the placement of block out wax parallel to the path of insertion at regions beneath the height of contour where framework contact is not planned (i.e. All areas except retentive clasp tips).)
(Diagnostic casts can serve as a visual guide for tooth preparation.)
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