English, Instructions for use – Ivoclar Vivadent IPS Investment Ring System 300g User Manual

Page 2

English

Instructions for Use

Product description
The IPS Investment Ring System 300g represents the latest
investment ring generation for the PRESS technology. It can be
used for pressing on long-span frameworks, as well as for the
pressing on several smaller restorations in one working step.
The Investment Ring System is ideally compatible with existing
Ivoclar Vivadent press ingots and press furnaces.

Indications
–

IPS e.max ZirPress
• Pressing on zirconium oxide frameworks up to a bridge

span width of 10 units (depending on the dimensions of
the dental arch)

• Pressing on several smaller zirconium oxide frameworks

–

IPS Inline PoM
• Pressing on frameworks fabricated of a ceramic alloy up

to a bridge span width of 10 units (depending on the
dimensions of the dental arch)

• Pressing on several smaller frameworks fabricated of a

ceramic alloy

Limitations of use
–

Casting of alloys

–

All applications not explicitly approved as an indication

Delivery form
–

IPS Investment Ring System 300 g – Starter Kit
1x Ring Base 300 g
1x Ring Gauge 300 g
1x IPS Silicone Ring 300 g
1x IPS Ingot Tongs
1x IPS Sprue Guide 300 g
10x IPS One-Way Plunger 300 g

The components are also individually available.

General note
–

Only ingots of the same shade may be processed in one
press cycle.

–

Failure to observe the stipulated contraindications and pro-
cessing instructions may lead to compromised press results.

Instructions for Use

Sprueing
Always attach the sprues in the direction of flow of the ceramic
and at the thickest part of the wax-up so that smooth flowing
of the viscous ceramic during pressing is enabled.
We recommend the following procedure to determine the
accurate wax weight:

–

Weigh the framework (with the fired liner/opaquer).

–

Weigh the IPS ring base 300 g (seal the opening of the
ring base with wax).

–

Position the contoured restoration on the ring base and
attach it with wax. Weigh again.

–

The wax weight of the contoured restoration is calculated
by deducting the weight of the ring base and the weight
of the framework from the total wax weight.

The following sprueing guidelines must be observed:

Wax wire ø

Length of the wax
wire

Length of the wax
wire incl. waxed-up
objects

Sprue attachment
point at the waxed-
up object

Sprue angle to the
waxed-up object

Sprue angle to the
ring base

Design of the
attachment points

Distance between
the objects

Distance to the
IPS Silicone Ring

Single crowns

3 mm

min. 3 mm,

max. 12 mm

max. 16 mm

thickest part of

the wax-up

axial

45–60°

round and slightly

flared, no angles or

sharp edges

min. 3 mm

min. 10 mm

(Check with the

IPS Sprue Guide)

Bridges

3–4 mm