FP1. MCR
at COD, coping of MCR is made of – answer Argebond 80
for MCR, metal coping is _____mm thick and opaque porcelain is _____mm thick
dentin and enamel porcelain= _______mm
total reduction= 1.5mm - answer metal coping= 0.3mm
opaque porcelain= 0.2mm
dentin enamel= 1mm
3 functions of opaque porcelain in MCR - answer1. blocks out color of metal
2. establishes bond to metal
3. initiates chosen shade
indications for metal ceramic restorations: - answer1. esthetic requirement
2. pt with occlusal compromises (ant overbite, occlusal wear)
3. limited interarch space
4. dark dentin or core build-up
contraindications for MCR - answermetal allergy
esthetic demands
porcelain butt margin= ______ shoulder
metal collar margin= shoulder with _______ - answerradial
bevel
axial reduction is done for adequate strength of materials, which is supportive of what
concept? - answerstructural durability
disadvantages of metal interproximal contact - answer-more difficult to add contact
-possible esthetic issue
what bur do you use for axial reduction for ceramic surfaces? - answer6847 (flat end
taper)
final occlusal reduction for MCR will always be _________ regardless of whether
occlusal surface is metal or ceramic - answerANGULAR
due to metal coping
at COD, coping of MCR is made of – answer Argebond 80
for MCR, metal coping is _____mm thick and opaque porcelain is _____mm thick
dentin and enamel porcelain= _______mm
total reduction= 1.5mm - answer metal coping= 0.3mm
opaque porcelain= 0.2mm
dentin enamel= 1mm
3 functions of opaque porcelain in MCR - answer1. blocks out color of metal
2. establishes bond to metal
3. initiates chosen shade
indications for metal ceramic restorations: - answer1. esthetic requirement
2. pt with occlusal compromises (ant overbite, occlusal wear)
3. limited interarch space
4. dark dentin or core build-up
contraindications for MCR - answermetal allergy
esthetic demands
porcelain butt margin= ______ shoulder
metal collar margin= shoulder with _______ - answerradial
bevel
axial reduction is done for adequate strength of materials, which is supportive of what
concept? - answerstructural durability
disadvantages of metal interproximal contact - answer-more difficult to add contact
-possible esthetic issue
what bur do you use for axial reduction for ceramic surfaces? - answer6847 (flat end
taper)
final occlusal reduction for MCR will always be _________ regardless of whether
occlusal surface is metal or ceramic - answerANGULAR
due to metal coping
