TIPS
1. Select a properly sized crown form (L. D. Caulk Co., Milford, Del.). 2. Trim the crown form, leaving enough on the interproximai surfaces for retention and enough to cover the entire labial surface (Fig. 2). 3. Instruct the patient not to wear the crown form while sleepingor eating to prevent aspiration or swallowingof the crown form.
Disclosing framework
medium
for adjusting
FROM
OUR
READERS
4. Otherwise, bleaching instructions are the sameas for conventional at-home bleaching methods. 5. Note improvement in color of treated lateral incisor (Fig. 3). Reprint
requests
to:
DR. MICHAEL J. WAHL 1601 CONCORD PIKE WILMINGTON,
removable
DE
19803
partial
denture
Toby R. Talbot, BDS, MSD,a and Ken W. Hemmings, BDS, MSDb Eastman Dental Hospital, London, England
When adjustment of the inner surface of a removable partial denture framework is necessary,a number of products are available. The traditional use of chloroform and rouge is reliable but is time consumingbecauseof the necessity to alter-
%eniorRegistrar,Departmentof RestorativeDentistry. bSeniorRegistrar,Departmentof RestorativeDentistry 10/4/31352
Fig. 2. Correcting fluid applied to parts of framework in contact with teeth.
Fig. 1. Typist’s correcting fluid.
282
Fig. 3. Displacement of medium in area of heavy tooth contact.
FEBRUARY
1992
VOLUME
67
NUMBER
2
TIPSFROMOURREADERS
PROCEDURE
Fig,
4. Adjustment completed following water spray.
nately dip a brush in the solvent and wipe it over the rouge to allow transfer to the framework. A spray suchasOcclude Aerosol (PascalCo., Inc., Bellevue, Wash.) allowsfor rapid placement on the framework but has a tendency to be messyon the handsand worktops. It is difficult to useif repeated applications and removals are required. A proprietory blue-colored disclosingmedium, Fixtector (Prodent, GmbH and Co., Bad Hamburg, W. Germany), which is specifically marketed for this purpose, has proved unreliable when applied becauseof difficulties with transfer to the framework with the supplied brush. Pressure relief cream(SybroniKerr, Romulus,Mich.) hasbeenfound to be more effective on acrylic resin than on metal frameworks.
The useof typist correcting fluid, TippCo.), was investigated. The solution is produced asa suspensionof titanium dioxide in trichloroethylene. An additional bottle of solvent can be purchasedto reducethe viscosity due to evaporation. A brush integral with the screw top allows for easy application to the framework (Fig. I). After application, useof an air syringewill aid drying and a thin opaquelayer of tinanium dioxide remains (Fig. 2). The framework is seatedon the teeth and surfacesof pressure will be clearly disclosedby the displacement of the medium (Fig. 3). Adjustment is done with a diamond bur in an air turbine with water spray (Fig. 4). Using an air turbine with no water spray results in metal particles remaining on the disclosingmedium. When adjustments are completed, the medium is simply removed in large fragments with a sharpinstrument. The useof alcohol and a cotton bud is equally effective. SUMMARY
An inexpensive disclosingmedium, availabllein any secretary’s office, has beenfound to be effective for adjusting removable partial denture frameworks at the chairside. Reprint
requests
to:
MR. TOBY R.TALBOT DEPARTMENT OF RESTORATIVE EASTMAN DENTAL HOSPITAL LONDON WC1 8LD ENGLAND
DENTISTRY
lac ent of a fractured tooth on a removable ture by using two visible light-cured resin syst Lawrence
S. Lipkin,
DDS,a
and Thomas
Wescott,
DDSa
TempleUniversity, Schoolof Dentistry, Philadelphia,Pa. When a denture tooth on a removable partial denture (RPD) fractures, a visible light-cured (VLC) resin (Triad, Dentsply International, York, Pa.) in conjunction with a, microfilled composite resin can be used to repair it in a simple, short, chairside procedure.l, 2
1. Remove the acrylic resin around the fractured tooth and seat the RPD in the mouth. 2. Make an irreversible hydrocolloid impressionand pour a cast with quick-set plaster (Fig. 1).
aAssistantProfessor,Departmentof Prosthodontics 1W4126184
THE
JOURNAL
OF PROSTHETIC
QENTISTRY
Fig.
1. Quick-set plaster cast with RPD in place.
283
1. Select a properly sized crown form (L. D. Caulk Co., Milford, Del.). 2. Trim the crown form, leaving enough on the interproximai surfaces for retention and enough to cover the entire labial surface (Fig. 2). 3. Instruct the patient not to wear the crown form while sleepingor eating to prevent aspiration or swallowingof the crown form.
Disclosing framework
medium
for adjusting
FROM
OUR
READERS
4. Otherwise, bleaching instructions are the sameas for conventional at-home bleaching methods. 5. Note improvement in color of treated lateral incisor (Fig. 3). Reprint
requests
to:
DR. MICHAEL J. WAHL 1601 CONCORD PIKE WILMINGTON,
removable
DE
19803
partial
denture
Toby R. Talbot, BDS, MSD,a and Ken W. Hemmings, BDS, MSDb Eastman Dental Hospital, London, England
When adjustment of the inner surface of a removable partial denture framework is necessary,a number of products are available. The traditional use of chloroform and rouge is reliable but is time consumingbecauseof the necessity to alter-
%eniorRegistrar,Departmentof RestorativeDentistry. bSeniorRegistrar,Departmentof RestorativeDentistry 10/4/31352
Fig. 2. Correcting fluid applied to parts of framework in contact with teeth.
Fig. 1. Typist’s correcting fluid.
282
Fig. 3. Displacement of medium in area of heavy tooth contact.
FEBRUARY
1992
VOLUME
67
NUMBER
2
TIPSFROMOURREADERS
PROCEDURE
Fig,
4. Adjustment completed following water spray.
nately dip a brush in the solvent and wipe it over the rouge to allow transfer to the framework. A spray suchasOcclude Aerosol (PascalCo., Inc., Bellevue, Wash.) allowsfor rapid placement on the framework but has a tendency to be messyon the handsand worktops. It is difficult to useif repeated applications and removals are required. A proprietory blue-colored disclosingmedium, Fixtector (Prodent, GmbH and Co., Bad Hamburg, W. Germany), which is specifically marketed for this purpose, has proved unreliable when applied becauseof difficulties with transfer to the framework with the supplied brush. Pressure relief cream(SybroniKerr, Romulus,Mich.) hasbeenfound to be more effective on acrylic resin than on metal frameworks.
The useof typist correcting fluid, TippCo.), was investigated. The solution is produced asa suspensionof titanium dioxide in trichloroethylene. An additional bottle of solvent can be purchasedto reducethe viscosity due to evaporation. A brush integral with the screw top allows for easy application to the framework (Fig. I). After application, useof an air syringewill aid drying and a thin opaquelayer of tinanium dioxide remains (Fig. 2). The framework is seatedon the teeth and surfacesof pressure will be clearly disclosedby the displacement of the medium (Fig. 3). Adjustment is done with a diamond bur in an air turbine with water spray (Fig. 4). Using an air turbine with no water spray results in metal particles remaining on the disclosingmedium. When adjustments are completed, the medium is simply removed in large fragments with a sharpinstrument. The useof alcohol and a cotton bud is equally effective. SUMMARY
An inexpensive disclosingmedium, availabllein any secretary’s office, has beenfound to be effective for adjusting removable partial denture frameworks at the chairside. Reprint
requests
to:
MR. TOBY R.TALBOT DEPARTMENT OF RESTORATIVE EASTMAN DENTAL HOSPITAL LONDON WC1 8LD ENGLAND
DENTISTRY
lac ent of a fractured tooth on a removable ture by using two visible light-cured resin syst Lawrence
S. Lipkin,
DDS,a
and Thomas
Wescott,
DDSa
TempleUniversity, Schoolof Dentistry, Philadelphia,Pa. When a denture tooth on a removable partial denture (RPD) fractures, a visible light-cured (VLC) resin (Triad, Dentsply International, York, Pa.) in conjunction with a, microfilled composite resin can be used to repair it in a simple, short, chairside procedure.l, 2
1. Remove the acrylic resin around the fractured tooth and seat the RPD in the mouth. 2. Make an irreversible hydrocolloid impressionand pour a cast with quick-set plaster (Fig. 1).
aAssistantProfessor,Departmentof Prosthodontics 1W4126184
THE
JOURNAL
OF PROSTHETIC
QENTISTRY
Fig.
1. Quick-set plaster cast with RPD in place.
283
