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®

How dentures are made
This is not our goal!

Herbert Frick ICDE
Statistics on complaint about
complete dentures

Herbert Frick ICDE
The sales of denture adhesives still
show an upward trend

Herbert Frick ICDE
Complexity of the stomatognathic
system

Herbert Frick ICDE
Accu-Dent
Inspection of supporting bone
Selection of trays
Tray selection using existing dentures
Mixing of impression material
Preparation of the tray material
Taking an upper impression

Herbert Frick ICDE
The upper impression

Herbert Frick ICDE
Taking a lower impression

Herbert Frick ICDE
The lower impression

Herbert Frick ICDE
Finished upper and lower impressions

Herbert Frick ICDE
Centric Tray
Study bite registration

Herbert Frick ICDE
Initial impressions with the Centric Tray
study bite

Herbert Frick ICDE
Laboratory procedure

Herbert Frick ICDE
Mounting the models using the Centric
tray study bite

Herbert Frick ICDE
Fabricating the individualized trays

Herbert Frick ICDE
impression tray bases

Herbert Frick ICDE
BPS

®

Intra-oral bite registration
with the Gnathometer M

Herbert Frick ICDE
Gnathometer M mounted on
impression trays

Herbert Frick ICDE
Refererence
planes of the
human skull

FH
CP
OP
FH = Frankfort horizontal
CP = Camper plane
OP = Occlusal plane

Herbert Frick ICDE
Individual Trays with Gnathometer “M”
Taking the bite
Making sure teeth on denture are level
Marking the Smile line

Herbert Frick ICDE
Taking the upper final impression
Finished upper final Impression
Taking the lower final impression
Finished lower final impression
Upper and lower finished impressions
Perfect occlusal fit
Tool used to transfer jaw position to the
laboratory

Herbert Frick ICDE
FH
CP
OE
Facebow transfer
Intra-oral bite registration
Intra-oral registration
Perfect Centric
"Bite Registration"
Final Impressions with bite registration
Selection of Teeth
Mounting models using facebow

Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Models mounted in laboratory

Herbert Frick ICDE
Herbert Frick ICDE
Biogenic principles
Biogenic principles
Labial
Frenum

Labial Vestibule

Incisive
Papilla

BuccalFrenu
m

Buccal
Vestibule

Median Palatine Raphe
(Raphe Palatina)

Residual Alveolar
Ridge

Hamular
Notch

Fovea
Palatina

Herbert Frick ICDE

Maxillary Tuberos
Residual alveolar
ridge

Retromolar
Pad

Buccal
Vestibule

Buccal
Frenum
Labial
Frenum

Labial Vestibule
Herbert Frick ICDE
Setting up of front teeth
“the ideal artificial tooth should be a
reflection of its natural model”
“the key to esthetics lies in asymmetry”
•PE – Perleffect = add a bluish iridescent effect
which increase light reflection
1. Model Analysis

Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Setting up of the back teeth

Herbert Frick ICDE
Three different cusp angles

Deep Overbite

Normal Bite

Cross Bite
Tooth position and modelling of surfaces are
done in such a way that the denture can be
functionally inserted without interfering with the
balance of tongue , cheeks and lip muscles

Herbert Frick ICDE
Herbert Frick ICDE
Contact to the template with SR Orthotyp

Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Herbert Frick ICDE
Front and lateral view of the complete
Wax-up

Herbert Frick ICDE
SR Ivocap injection method

Herbert Frick ICDE
Components of the SR Ivocap

Herbert Frick ICDE
Advantages of injecting plastic
High impact heat curing polymer
Compensation of polymerization shrinkage
No raised bites
No porosities
Excellent bond to denture teeth (PMMA)
Homogeneous qualitiy of the material

Herbert Frick ICDE
Benefit of injecting plastic

Spherical Deformation of Acrylic During Conventional
Processing

Herbert Frick ICDE

Conventional plastic
is susceptible to
chemical shrinkage
during processing
which creates
dimensional
instability (warpage,
shrinkage) and
movement of teeth
Upper and lower wax dentures in
injection flasks

Herbert Frick ICDE
Filling injection flasks with dental stone

Herbert Frick ICDE
Opening the upper and lower flask
after wax heating

Herbert Frick ICDE
Boiled-out upper and lower
injection flasks

Herbert Frick ICDE
Herbert Frick ICDE
Injecting the plastic

Herbert Frick ICDE
Injection Process

Herbert Frick ICDE
Herbert Frick ICDE
Injection flask in a 98 °C water bath
under 6 bar pressure to harden plastic

Herbert Frick ICDE
Schematic diagram of the
injection method

Herbert Frick ICDE
Polymerized dentures replaced in the articulator

Herbert Frick ICDE
Herbert Frick ICDE
Completed upper and lower dentures

Herbert Frick ICDE
Herbert Frick ICDE
Further Patient Cases
solved with this System
Profile of the patient with the old and
new denture

Herbert Frick ICDE
before

after
Cross bite
The objective of our
efforts
More satisfied BPS patients

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How Dentures are Made - BPS System