Instructions for use Cylindrical anterior ... - Heraeus Kulzer

®
®
Instructions for use
Cylindrical anterior attachments
Edition 11/2006

2
The VentraLock ® and AnterioLock ® anterior attachment
with precisely adjustable with drawal force for reliable
restorations.
The VentraLock,
AnterioLock anterior
attachment is a rigid,
intracoronal retentive
unit developed specifically
for use in the
anterior region. The
activation screw (1) in
the patrix ensures that
the denture has a defined
withdrawal force.
A safeguard against
removal of the activation
screw (1) is provided
by an undercut in
the patrix (2). Never
unscrew the activation
screw (1) from the
patrix (2), as this
would expand the
patrix and render it
unusable.
The extracoronal
screw-retention (3) of
the patrix (2) with the
threaded cap (4)
allows the patrix to be
easily exchanged without
damaging the
acrylic saddle.
4
3
3
4
2
1
2
1
VentraLock ® REF 5390 REF 5391
Matrix (Pt-Ir), REF 1031 REF 1031
cast-on or solderable with precious,
Pd-based and non-precious metal alloys.
Threaded caps (Titan), REF 1032
only bondable.
Threaded caps (Pd-Ag), REF 1033
solderable with precious and non-precious
metal alloys.
Patrices (Titan) REF 1034 REF 1034
of these attachments are always
screw-retained and are therefore
easily exchanged.
Patrix activation screw REF 1035 REF 1035
(Titan)
Patrix retention screw REF 1036 REF 1036
(Titan)
AnterioLock ® REF 5400
Matrix (Pt-Ir), REF 1037
cast-on or solderable with precious,
Pd-based and non-precious metal alloys.
Threaded caps (Pd-Ag), REF 1038
solderable with precious and non-precious
metal alloys.
Patrices (Pd-Ag) REF 1039
of these attachments are always screwretained
and are therefore easily exchanged.
Patrix activation screw (Titan) REF 1040
Patrix retention screw (Titan) REF 1041

The VentraLock ® and AnterioLock ® anterior attachment
Technical data
Technical data
Matrix: Pt-Ir
Melting point: 1830-1855°C.
Patrices: Pd-Ag
Threaded caps: Pd-Ag
Melting point: 1170-1240°C.
Threaded caps: Titan
Dimensions of the VentraLock and Anteriolock
anterior attachment
VentraLock ® :
A Overall height as supplied = 4.0 mm
B Overall height after max. reduction = 2.9 mm
AnterioLock ® :
A Overall height as supplied = 3.9 m
B Overall height after max. reduction = 2.6 mm
Applies to the AnterioLock ® only
An undercut in the patrix safeguards against removal
of the activation screw. Never unscrew the activation
screw from the patrix, as this would expand
the patrix and render it unusable.
Instruments and accessories
The following instruments and accessories are
essential to ensure correct preparation and accurate
results:
Paralleling mandrel REF 5451:
for paralleling the attachment matrices.
Combined exchange and activation
instrument REF 5452:
for exchanging and activating the attachment
patrix.
Positioning screw:
for securely positioning the threaded caps
(patrix holder) in the soldering model.
Thread adhesive REF 5951:
for securing the patrix retention screw.
These instruments and accessories are contained
in Preparation Set REF 5450.
Caution
When working with attachments, it is essential
to note and follow the specific instructions
for use, marked in green, which you will
find underneath a greyhighlighted line.
3

4
Platinum-Iridium Matrix
A reliable technique for precise casting of the Platinum-
Iridium Matrix with precious and non-precious metal
alloys.
Notes on technique:
Ensure that no part of the attachment projects
into areas to be faced with porcelain, as platinumiridium
does not produce a durable bond with porcelains,
which may crack during firing.
To ensure the papilla is kept free, place the deactivated
patrix into the matrix that has already been
waxed in position.
Check the gap between the appendix of the patrix
and the alveolar ridge.
Notes on indication
Fig. 1:
After determining the path
of insertion, place the
matrix on the crown wall
using the parallelometer
and paralleling mandrel
REF 5451. Mark the matrix
outline on the crown wall.
A stress-breaker with interlock must be incorporated when using the AnterioLock
and VentraLock attachment with free-end restorations. As a precaution, a stressbreaker
should also be included with bounded saddles. This allows the primary
situation of the denture to be integrated in the new design without any alteration
after loss of the distal abutment tooth. The new denture, just like free-end restorations,
must be largely supported by the tissues, to avoid breakage of the attachment
caused by overloading masticatory forces.
Before each try-in or final cementation the whole restoration should be cleaned
in accordance with current hygiene regulations.
Fig. 2:
Then create sufficient
space for the matrix.
Place the matrix on the
crown wall or in the recess
and wax it in position.
Ensure that the matrix is
completely surrounded with
wax (min. 0.5 mm).
Caution
Do not allow any wax
degreasing agent to get
into the attachment
matrix.

Platinum-Iridium Matrix
Successful casting results and an accurate fit
depend on precise preparation!
Before investing, decide which dental alloy is to be
cast onto the matrices and use the mixing ratio
recommended in the instructions for use for the
investment.
Caution
To ensure the molten metal casts perfectly onto the
Pt/Ir matrix, allow the mould to heat soak at the
final temperature for a minimum of 45 minutes
during preheating. The mould temperature with Pdbased
and non-precious metal alloys should be
approx. 920°C-940°C to prevent any temperature
loss during casting.
Adhere to the manufacturer’s subsequent heating
times following the preliminary preheat of the metal
ingots, particularly with Pd-based alloys.
Fig. 3:
Attach the sprues.
To ensure the investment
flows fully into the matrix,
put a small drop of water in
the matrix.
Fig. 4:
After mixing the required
amount of investment
(according to the size of
casting ring), hold the rubber
base vertically on the
vibrator and use a probe to
ensure the investment flows
into the attachment channel.
(Do not press in!)
Devest the mould after
casting and sandblast the
crowns and framework with
microbeads before preparation.
5

6
Platinum-Gold Matrix
Technique for a reliable, precise solder connection between
the Platinum-Gold Matrix and crown.
Fig. 5:
Proceed as described in
Figures 1 + 2 on Page 4.
After removing the metal
matrix, contour a flow channel
for the solder.
Fig. 6:
After determining the path
of insertion, place the
metal matrix in the recess
of the cast crown using the
parallelometer and paralleling
mandrel REF 5396 or
REF 5451.
Fig. 7:
Secure the metal matrix on
the cast crown with resin or
wax. Fabricate a soldering
model and solder in the
usual way.
Fig. 8:
Prepare the solder joint.
Temper the attachment
matrix in a furnace (0-
700°C, hold for 30 minutes,
cool slowly).

Solder connection
Technique for a reliable, precise solder connection between
the threaded cap and denture framework.
Fabricating a duplicate model
Soak the model in water at 40-50°C for 10 minutes.
Then dab the model with a soft cloth and
duplicate it immediately (with reversible duplicating
material).
Fig. 9:
Insert the patrix with the
solderable threaded cap in
position into the matrix.
Block out the gap between
the matrix and patrix with
wax.
Fig. 10:
Block out under the attachment
patrix with wax and
surround the solderable
threaded cap with a thin
layer of wax approx. 0.1
mm (for the solder gap).
Fig. 11:
Duplicate according to the
instructions. The threaded
cap is clearly defined on
the casting model after
removal of the duplicating
material.
Fig. 12:
Surround the threaded cap
duplication with a layer of
wax approx. 0.5 mm thick.
The top of the threaded cap
should not be covered with
wax. Invest and cast in the
usual way. Prepare the framework
after devesting and
sandblasting.
7

8
Solder connection
Fig. 13:
Secure the threaded cap in
position with resin. Remove
the attachment from the
threaded cap and insert the
positioning screw. Fabricate
a soldering model and solder
in the usual way.
Caution
Fig. 14:
If a spot welder is available,
cut a T-shape in the framework
at the metal surrounding
the threaded cap. Spot
weld the metal segments to
the threaded cap from the
inside to the outside.
Unscrew the attachment
patrix before soldering freehand.
The adhesive technique for bonding the threaded
caps is included in the instructions for use, Adhesive
Technique.
Fig. 15:
Apply antiflux to the threads
and the inner surfaces
of the threaded cap. Apply
flux to the surfaces to be
soldered. Ensure that the
flux has flowed completely
round the threaded cap.
Solder in the usual way.
Fig. 16:
Check that the solder has
flowed completely around
the threaded cap. If a soldering
model was used, remove
investment residue from
the threaded cap after soldering
with an ultrasonic
cleaner. Prepare the solder
joint and then insert the
patrix in the threaded cap.

Patrix
Exchanging and activating the Patrix.
Fig. 17:
This close-up clearly shows
the threaded cap for holding
the exchangeable
patrix.
Applies to the AnterioLock ® only
Fig. 18:
Exchanging the AnterioLock
and VentraLock patrix is
quick and easy. Simply
unscrew the patrix retention
screw with the exchange
and activation instrument
REF 5397 or REF 5452.
Insert the new patrix and
replace the retention screw.
Procedure completed. It is
that quick and easy.
Fig. 19:
The patrix is easily activated
by turning the screw
slightly with the activation
instrument REF 5397 or
REF 5452.
The withdrawal force can be
precisely set by gradual
adjustment. To deactivate
the patrix, simply turn the
activation screw anti-clockwise.
An undercut in the patrix safeguards against removal of the activation screw.
Never unscrew the activation screw from the patrix, as this would expand the
patrix and render it unusable.
9

10
Precision attachment
Materials and technical data
Material Application Melting range °C Hardness HV5 0.2%
Alloy
Composition in % by weight
Proof stress,
Tempering
Min.
REF:
symbol
Au Ag Pt Pd Cu Sn Zn In Ga Ir Ru Others
Solidus Liquidus tempered tempered Mpa °C
HFA (Heraplat) 1 61.00 - 23.80 15.00 - - - - - - - 0.2 Rh 1360 1460 250 780 700 30
Pt-Ir 2 - - 80.00 - - - - - - 20.00 - - 1830 1855 300 920 - -
HFA 4 53.10 - 22.30 24.60 - - - - - 0.10 - - 1320 1460 230 720 - -
HFA (Heraplat C) 7 60.00 - 19.00 20.00 - - - - - 1.00 - - 1400 1490 240 635 700 30
HFA (Heraplat SN) 8 20.00 - 79.00 - - - - - - 1.00 - - 1430 1660 215 575 600 15
Pd-Ag (Alba O) 11 2.00 37.00 8.00 40.00 13.00 - - - - - - - 1170 1240 235 620 220 10
Pd-Ag (Hera O) 14 10.00 30.00 10.00 34.90 14.00 - 0.50 - - < 0.1 < 0.1 - 1130 1180 340 1130 500 30
15 70.00 12.50 7.00 0.40 10.00 - - - - 0.10 - - 890 970 285 740 400 15
Au-Ag
(Maingold O)
16 71.00 12.30 2.00 1.90 12.20 - 0.50 - - < 0.1 < 0.1 - 900 930 250 670 350 15
Au-Ag
(Maingold SG)
17 71.00 12.30 3.90 - 12.20 - 0.50 - - 0.10 - - 900 930 250 670 350 15
Au-Ag
(Bio Maingold SG)
Au-Ag 18 65.00 13.00 8.90 1.00 11.50 - 0.50 - - 0.10 - - 880 940 275 720 400 15
Au-Ag
21 70.00 13.40 8.50 - 7.50 - 0.50 - - 0.10 - - 895 1010 295 600 450 15
(Mainbond EH)
Pd-Ag (Micropal) 25 - 34.00 - 57.00 - 5.00 - 2.00 2.00 - - - 1030 1255 300 600 15
1050 1130 220 555 450 15
Au-Pt 0.1Mn
27 86.20 - 11.5 - - - 1.50 - - < 0.1 < 0.1
(Bio Herador N)
0.3 Ta
Titanium Grade 2 30 Ti 99.7% 7065
Titanium Grade 5 31 Ti 90.00%, Al 6.00%, V 4%, C 0.08%, Fe 0.25%, O 0.13%, N 0.05%, H 0.012%
Stainless steel 32 1.4305 X10CrNiS189
Plastic 33 PTFE polytetrafluoroethylene
Please note!
Individual components (matrices and patrices) of certain
Titanium alloy 35 Ti 99.00%, C 0.10%, Fe 0.30%, O 0.5%, H 0.015%
Plastic 36 PMMA Polymethylmethacrylate
attachments are available in different alloys. High-fusing
Plastic 37 POM Polyoxymethylene
Aluminium oxide 38 Al 2 O 3
alloys components are cast-on (only with certain bon-
Plastic 39 ABS Acrylnitrile butadiene styrene
ding alloys with a high melting range).
Plexiglas 40 Methylmethacrylate-based acrylic resin
Polypropylene 41
Polystryene 42
Fe-Cr 43 Cu 1.60%, Cr 17.00%, Fe 67.00%, Ni 10.00%, Mn 2.00%, Si 1.00% Do not solder
Plastic 44 PMMA 7 N
Stainless steel 45 1.4301 X5CrNi1810

VentraLock ® and AnterioLock ® = registered trademark of ZL Microdent GmbH & Co. KG, Breckerfeld
11

Contact in Australia
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11.06. PDF/BM Printed in Germany
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