DIRECTIONS FOR USE

Laboratory Technique
Chairside Technique
1
Indications for Use:
PermaSoft

Soft Denture Liner is a two

component system comprised by
blending a powder component of
polyethylmethacrylate and a liquid
component of Di-n-butyl phthalate,
ethyl acetate and ethyl alcohol. It is
indicated for use in stabilizing and
relining complete and partial dentures,
cushioning sensitive tissues and
retaining overdentures. Permasoft can
be processed using direct or indirect
techniques. The compliance and
resiliency of Permasoft can be varied
by altering the powder/liquid ratio.
Contraindications:
None known.
Warnings:
PermaSoft Soft Denture Liner contains
methacrylate resins which may cause
skin sensitization (allergic contact
dermatitis) or other allergic reactions
in susceptible persons. If skin
sensitization occurs, discontinue use. If
dermatitis or other symptoms persist,
seek medical attention. PermaSoft
liquid contains ethyl alcohol and
should be kept away from sources of
ignition. Avoid contact with eyes. In
case of accidental contact, wash
thoroughly with water and seek
medical attention.
Keep containers tightly closed when
not in use.
Precautions:
Work in a well ventilated area when
applying PermaSoft Sealer and DO
NOT place prosthesis in patients
mouth until PermaSoft Sealer is
completely dry and prosthesis has
been rinsed with water.
Its longevity of service is reduced
when used as a long-term soft liner
against sharp, knife edge ridges. It
can be used for application over knife
like ridges, but use a powder/liquid
ratio of 3:1 for more resistance to
hairline cracking. Adhesion of
PermaSoft to each and every denture
base resin formulation has not been
tested. Carefully evaluate adhesion
of PermaSoft to denture base
formulations which do not contain
polymethylmethacrylate.
Store at room temperature.
Adverse Reactions:
Allergic contact dermatitis and
other allergic reactions may occur
in susceptible individuals.
Preparation:
1. Upon receipt of reline impression,
pour a stone model. Flask or jig
the model with the impression in
place following standard reline
procedures.
2. After the flask has set for one
hour, place it in a boilout tank
for approximately 15 minutes.
Remove it and separate the upper
and lower portions of the flask.
3. Gently scrub the lower half of
the flask (model half) with a
mild detergent and rinse
thoroughly with clean, hot
water. Post dam, if necessary;
apply separator; allow the
separator to dry.
4. Prepare the denture base for the
soft liner by relieving the acrylic
tissue-bearing surface by 2mm
or more. Liner can extend above
the peripheral roll to any length.
5. Eliminate severe undercuts and
roughen areas of denture base
to be relined.
6. Gently scrub the upper half of the
flask (denture half) and rinse with
hot water. Apply separator to
stone or plaster; let dry.
STEP BY STEP INSTRUCTIONS
The compliance and resiliency of PermaSoft Soft Denture Liner can be varied by
altering the powder/liquid ratio. PermaSoft mixed using a powder/liquid
(vol/vol) ratio of 2:1 results in a very compliant lining layer suitable for post-
surgical prosthetics or as a cushion against sensitive tissues. PermaSoft mixed
using a powder/liquid ratio of 2
1
/2 :1 results in a firmer lining which effectively
stabilizes partial and complete dentures while still providing the advantages of a
soft-liner for long-term use. PermaSoft mixed using a powder-liquid ratio of 3:1
results in a lining capable of retaining overdentures onto natural teeth, ball
abutments or bar connectors. PermaSoft forms a durable bond with conventional
methacrylate resin denture base formulations.
2
LABORATORY TECHNIQUE
Density
Softest
Standard
Lining
Firm
Ratio (P:L)
2:1
2
1
/2 :1
3:1
Powder
8cc
10cc
12cc
Liquid
4cc
4cc
4cc
Applications
Post-surgical prosthetics
Cushion for sensitive tissue
Complete denture relines
Partial denture stabilization
Overdenture retained on healing caps
Overdenture retained by ball abutments,
bar connectors or teeth.
3
Measuring & Mixing:
7. To measure: use the graduated
glass vials marked Powder
and Liquid. You can control
the liners softness by modifying
the powder/liquid ratio as
shown in the chart above.
Note: At a 2:1 ratio, liner
is the softest. A light
powdering of liners
surface will absorb any
excess liquid.
8. Pour powder (all at once) into
the liquid in mixing cup; Stir
very slowly (to avoid the
introduction of bubbles) until all
of the powder particles are
totally moistened. The mixture
consistency instantly turns
sticky and honey-like.
Application:
9. Immediately, spread the mixture
onto the totally dry denture
base surface.
10. Close the flask or jig for curing. In
jig, use fingertip coated with the
mixing liquid to taper and smooth
any excess material 3mm onto
labial and buccal surfaces.
Curing:
11. Place flask onto a press; slowly
apply pressure until the flask is
completely closed.
Note: Do not trial pack
the soft liner.
12a. In a flask: Place flask in a curing
unit filled with boiling water
(212F/100C) for 15 minutes.
12b. In a jig: Place jig in a curing
unit or in a pressure pot at
(20psi/1.4bar) in steaming hot
water (between 122F/50C to
165F/74C) for 10 minutes.
Finishing:
13. Remove cured denture from
flask or jig; chill it a few
minutes in an ice water bath
to temporarily harden the soft
liner for easy trimming.
14. Remove excess flash with sharp
scissors, scalpel or suitable
rotary instrument (i.e. acrylic bur,
rubber point or finishing stone).
Feather taper liner 3mm onto
labial and buccal surfaces.
15. If desired, finish with a wet rag
wheel and pumice to further
smooth the surface. Do not
high-shine the liner using a buff
wheel as PermaSoft Sealer
provides a high-gloss finish.
Sealing:
16. Dry the liner surface using air
or warm air blower to remove
all surface moisture. Apply a
generous coat of PermaSoft
Sealer over the totally dry soft
liner and air dry for 2+ min-
utes. Repeat procedure adding
a second coating. A third
coat of PermaSoft Sealer can
be applied on non-retentive
fitting surfaces.
4
Additional Information:
Note: Provide Patient Care
Card to instruct care &
cleaning of the soft liner.
Note: To adjust, refit or
repair: roughen the sur-
face, apply a fresh mix
of soft liner, follow
directions above for
Application, Curing,
Finishing and Sealing.
Note: The Powder is avail-
able in a clear shade
which can be used to re-
tain transparent acrylic
mouth guards, bite plates
and splints, to protect ve-
neers, and as a gasket
connector around teeth.
Lining a New Denture:
Preparation:
1. Invest denture, wax-up and boil-
out in the usual manner. Apply
separator to denture half of
mould. Allow the separator
to dry.
2. Form a spacer on the model
from 1mm to 2+mm in
thickness. Allow spacer to
overlap the peripheral roll 3mm
onto the labial and buccal
surfaces. Soft liner can extend
above the peripheral roll to
any length.
3. With spacer in place, trial pack
the acrylic with dry sheets.
After final packing of acrylic,
allow 20 minutes to snap set
the acrylic while flask is in
the press.
4. Open flask, remove spacer and
clean model. Apply separator
onto the model-side stone
surfaces. Allow the separator
to dry.
Measuring & Mixing
Application:
(Follow instructions on page 2.)
Curing:
Cure per manufacturers instruction for
the new acrylic resin being used.
Finishing and Sealing:
(Follow instructions on page 3.)
5
Preparation:
1. Relieve all undercuts and
remove 2mm or more of acrylic
on the tissue side of the denture
to make room for the soft liner.
2. Roughen the peripheral roll plus
3mm of the buccal and labial
surfaces.
3. Clean and dry the areas where
the soft liner is to be applied.
Use petroleum jelly or a water
soluble substitute to coat the
interproximal surfaces that are
not meant to be lined. This will
ease finishing.
Measuring & Mixing:
4. To measure: Use the graduated
glass vials marked Powder
and Liquid. You can control
liners softness by modifying the
powder/liquid ratio as shown in
the chart above.
Note: At a 2:1 ratio, liner
is the softest. A light
powdering of liners
surface will absorb any
excess liquid.
5. Pour powder (all at once) into
the liquid in mixing cup; Stir
very slowly (to avoid the
introduction of bubbles) until all
of the powder particles are
totally moistened. The mixture
consistency instantly turns
sticky and honey-like.
Application:
6. Immediately, spatulate and
spread the mixture onto the
totally dry denture.
7. Apply lubricant to patients lips
or ask patient to moisten lips as
the soft liner does not adhere to
wet areas.
Note: For patients with sore
spots or tissue/taste sensitivity,
rinse the mouth for 20 seconds
with an anesthetic mouth rinse.
8. Place denture in the mouth and
instruct the patient to close
gently into occlusion for one
CHAIRSIDE TECHNIQUE
Density
Softest
Standard
Lining
Firm
Ratio (P:L)
2:1
2
1
/2 :1
3:1
Powder
8cc
10cc
12cc
Liquid
4cc
4cc
4cc
Applications
Post-surgical prosthetics
Cushion for sensitive tissue
Complete denture relines
Partial denture stabilization
Overdenture retained on healing caps
Overdenture retained by ball abutments,
bar connectors or teeth.
6
minute while performing muscle
moulding at the same time, if
desired.
9. Remove denture from the mouth.
The soft liner should completely
overlap the peripheral roll.
10. Use a fingertip coated with the
mixing liquid to taper and
smooth the excess material 3mm
onto the labial and buccal
surfaces; then cure immediately.
Curing:
11. Place the denture, reline side
up, into a cup filled with
steaming Hot Water (between
122F/50C to 165F/74C)
and cure for 10 min. If
available, place in a pressure
pot; cure in Hot Water (between
122F/50C to 165F/74C) at
(20psi/1.4bar) for 10 min.
12. After curing, chill the denture in
Cold Water or Ice Water or
spray the liners surface with a
skin refrigerant to temporarily
harden the soft liner for easy
trimming.
Finishing & Sealing:
13. Remove excess flash with sharp
scissors or scalpel. Feather taper
the material onto the labial and
buccal surfaces with an acrylic
bur and smooth with a large
rubber point or finishing stone.
14. If desired, finish with a wet rag
wheel and pumice to further
smooth the liner surface. Do not
high-shine the soft liner.
15. Dry the liner surface using air
or warm air blower to remove
all surface moisture. Apply a
generous coat of PermaSoft
Sealer over the totally dry soft
liner and air dry for 2+ min.
Repeat procedure adding a
second coating. A third coat of
PermaSoft Sealer can be applied
on non-retentive fitting surfaces.
DO NOT place denture in
patients mouth until PermaSoft
Sealer is completely dry
and rinsed.
Patient Delivery:
Give patient a Patient Care Card to
instruct him/her on care and cleaning
of the soft liner.
1) Soak only 10 min. in denture
cleaner.
2) Warn patient not to scrub the
soft liner with a hard-bristle
brush; and
3) Request annual re-sealing
of soft liner and dental
examination to assure
proper fit.
Note: To adjust, refit or
repair; roughen the
surface, apply a fresh
mix of soft liner, insert,
cure, finish and re-seal.
Note: Liner will cure in 5
minutes in-the-mouth for
thin, small area relines.
Note: The Powder is
available in a Clear
shade which can be used
7
to retain transparent
acrylic mouth guards, bite
plates and splints, as a
gasket connector around
teeth, and to fill voids to
eliminate food traps.
Implant Overdenture
Technique:
This patented implant overdenture
technique was developed to aid in the
progressive healing process following
the surgical placement of implants. It
is well suited for this chairside
application due to ones ability to vary
the liners degree of softness, (see
mixing ratios and applications in
chart on page 4.)
Post-Surgical Placement:
After a one to two week interval
following the implant placement, line
the tissue side of the overdenture for a
soft, light load.
Note: Initially, use softest liner
mix ratio of 2 parts powder to
1 part liquid.
After suture removal, block out suture
line (indentation) with dry foil or
suitable material and reline following
the Chairside Technique. Make sure
soft material does not interfere with
healing site or tissue flap. This soft
liner cushions tender areas and its
sealer provides a non-absorbent,
hygienic surface.
Healing Cap Exposure:
After an appropriate implant
integration phase, perform the
second stage reline. This requires a
new application of soft liner to the
relieved tissue side to anchor over
healing caps.
Note: Use the standard liner
mix ratio of 2
1
/2 parts powder
to 1 part liquid.
This Healing Cap overdenture enables
a gradual healing load with light
functional stimulus to the implant. This
thin area reline will cure in-the-mouth
in 5+ minutes.
Long Term Retention:
After attachment of ball abutments or
bar connectors, reline overdenture to
form gasket over balls or bars
without O-rings or clips.
Note: Use the firmest liner mix
ratio of 3 parts powder to 1
part liquid.
The liner absorbs torque pressure and
provides retention for long term service
with easy chairside adjustment.
8
Introduction
Long-lasting and easy to use,
PermaSoft Clear Powder possesses the
same working characteristics as
PermaSoft Pink Powder. Once cured,
the transparency of PermaSoft Clear
Powder makes it ideal for use with
any clear acrylic resin appliance (e.g.
night guards, bite plates) or as a
gasket connector around teeth in a
removable denture.
Soft Lining of Clear
Acrylic Appliance
1. Process acrylic appliance in
usual manner.
2. Relieve 2mm of acrylic from the
occlusal surface of the appliance
to make room for the soft lining.
Note: Maintain an acrylic
border no thinner than
1mm to support soft lining.
3. Clean and thoroughly dry areas
where soft liner is to be applied.
4. To place soft lining, refer to
directions for Laboratory
Technique or Chairside
Technique.
Creating a Gasket in
Removable Denture
1. Create a hole in denture with
2mm to 3mm of space around
existing tooth or teeth to allow
room for PermaSoft gasket.
2. Roughen 3mm area
surrounding the newly-created
hole(s) on all surfaces where the
soft liner will adhere.
3. To measure: Use the graduated
glass vials marked Powder and
Liquid. For this application we
recommend a 3:1 Powder-to-
Liquid ratio.
4. Apply lubricant to all areas
where you do not want the soft
liner to adhere.
5. Follow Mixing & Measuring
instructions in Directions for Use.
6. Spatulate mixture onto the tissue
side of the totally dry denture
beneath created hole(s).
7. Seat the denture over the
existing tooth or teeth. The
soft liner will flow out through
the hole.
TECHNIQUE FOR CLEAR POWDER
Density
Standard
Lining
Firm
Ratio (P:L)
2
1
/2 :1
3:1
Powder
10cc
12cc
Liquid
4cc
4cc
Applications
Retain and cushion of clear acrylic
appliances, such as night guards, bite plates,
splints, TMJ & sleep apnea devices
Gasket in a removable denture
for retention on existing teeth
Fills voids beneath clasps and
under retainers to eliminate food
traps on acrylic prosthesis
9
8. Use a fingertip coated with
the mixing liquid to taper and
smooth excess soft liner 3mm
onto the labial and buccal
surfaces.
9. Follow Curing, Finishing &
Sealing instructions in Directions
for Use.
Soft Lining of New Appliance
Follow Directions for Use, Laboratory
Technique, Lining New Denture, in
order to place PermaSoft Clear inside
transparent acrylic appliances such as
a night guard or bite plate. Make sure
to leave 1+mm of acrylic border to
support the soft material inside the arch.
2004, 2006 DENTSPLY International Inc. All rights reserved. Printed in U.S.A. NPK1716 Rev. H
(01/11)
Manufacturer:
DENTSPLY International Inc.
570 West College Avenue, York, PA 17405-0872
1-800-243-1942
www.austenal.dentsply.com or www.dentsply.com
U.S. Patent No. 5,513,988; 5,678,993; 5,885,077