Hajdu Zoltán ftm

Labside and chairside
steps of fixed partial
denture prosthodontics
Dr. Judit Borbély
2015
Clinical and laboratory steps
Chairside
History, intra-extraoral exam
TMJ, Xray, diagnostic casts
Treatment plan
Preoperative treatments
Toothpreparation
Temporary restorations
Impression (Io scan-digital impression)
CO
1.
2.
3.
4.
5.
6.
7.
8.
12.
13.
Try in substructure
Tooth shade
16.
17.
Labside
9.
10.
11.
Making the models
Mounting on articulator
Making the framework: casting or Cad/CAM
14. Veneering
Cementation
Recall
PFM and all-ceramic
Typical workflow for
PFM and for CAD/CAM –manufactured
restorations in the lab
Preparation
 Impression
Fabrication of models






Casting
Manual finishing
Veneering
Seating in the mouth





Scanning
Milling
Sintering
Veneering
Seating in the mouth
1.
2.
3.
4.
5.
6.

History
Intra/extraoral examination
TMJ evaluation
Full mouth radiographs
Diagnostic casts
Diagnosis
Treatment Plan
Photo documentation
Treatment planning-reference lines
Size and shape


Wax-up
Indirect diagnostic
wax pattern to
determine shape
• Direct diagnostic
acrylic temporarymock up
• Controll shape and
size
• Corrections
Chairside Temporary restorations
Lab made temporary restorations
Tooth preparation



The selected form given to
a natural tooth when it is
reduced by instrumentation
to receive a prosthesis (e.g.
artificial crown or a retainer
for a fixed or removable
prosthesis)
The selection of the form is
guided by clinical
circumstances and
physical properties of the
materials that make up the
prosthesis.
(Boucher's Clinical Dental
Terminology, 4th ed, p239)
Material selection:
•
tooth reduction
•Margin design
Balance between conserving tooth structure on the one hand
, achieving an aesthetic and strong crown on the other!
Gingival retraction
Double cord technique
Opposing arch
Hajdu Zoltán ftm
Intercuspal position IKP
Casts placed in an
articulator in the same
relationship to the
temporomandibular
joint as exist in the
patient
Articulator: mechanical
device stimulates
movements of the
mandible
Facebow record and positional wax bites
 ICP
 Protrusion
 Right
laterotrusion
 Left laterotrusion
Hajdu Zoltán ftm
Tooth shade
selection
Adequate information
for lab to technician to
mimic nature !
2L2.5
implant
retained
Temporary
crown
Discolored
natural
tooth
2M2
2M2
Hajdu Zoltán ftm
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C
A
D/
C
A
M
37
Difference in labside
The same….? chairside
1.
2.
3.
4.
5.
6.
History, intra-extraoral exam
TMJ, Xray, diagnostic casts
Treatment plan!!
Preoperative treatments
Tooth Preparation!!
Impression?!
NO!
Hajdu Zoltán ftm
CAD
Hajdu Zoltán ftm
CAM
Hajdu Zoltán ftm
Io scan-digital impression
50
Thank you for your
attention!