TIPS
FROM
OUR
READERS
1. Ketae-Fil cement selection using Vita Lumin shadeguide
Table
Ketac-Fil
cement
sample
Vita
Light Yellow Yellow-brown Grey Grey-brown Dark-grey
shade
B-l A-3 A-3.5 c-3 A-4 c-4
bleaching Michael
Lumen
shade guide. Six of the samplesproduced an acceptable match with the Vita shade guide (Table I). The brown Ketac-Fil cement sample was closest to Vita A-4 shade guide but was more brown in Hue.
J. Wahl,
of a single
Reprint
requests to:
DR. DAVID F. MURCHISON KEESLER TTC, MED CTR/SGD KEESLER AFB, MS 39534-5300
tooth
DDSa
Medical Center of Delaware, Wilmington, Del. ‘“At-home bleaching” with 10% carbamide peroxide and vacuum-formed splints is gaining wide acceptance as a simple, safe, and effective technique to lighten teeth (Fig. 1). Among its advantagesover in-office bleachinglights and wands are (1) lesschair time for the patient and the dentist, (2) less operative and postoperative discomfort, (3) easeof “touch up” treatments if necessary,and (4) usually lessexpenseto the patient. A disadvantage of vacuum-formed splints used to hold the carbamide peroxide solution against the teeth is the inability to bleach a single darkened tooth (for example, a discolored endodontically treated tooth). A resolution to this problem is the useof a preformed plastic crown form to hold the solution against the tooth. BAssistant 10/4/31350
2. Preformed plastic crown form trimmed and in place. Fig.
attending.
Fig. 9. Darkened endodontically treated lateral incisor.
THE
JOURNAL
OF PROSTHETIC
DENTISTRY
Fig.
3. Post-bleaching of lateral incisor shown in Fig. 1.
281
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
FROM
OUR
READERS
1. Ketae-Fil cement selection using Vita Lumin shadeguide
Table
Ketac-Fil
cement
sample
Vita
Light Yellow Yellow-brown Grey Grey-brown Dark-grey
shade
B-l A-3 A-3.5 c-3 A-4 c-4
bleaching Michael
Lumen
shade guide. Six of the samplesproduced an acceptable match with the Vita shade guide (Table I). The brown Ketac-Fil cement sample was closest to Vita A-4 shade guide but was more brown in Hue.
J. Wahl,
of a single
Reprint
requests to:
DR. DAVID F. MURCHISON KEESLER TTC, MED CTR/SGD KEESLER AFB, MS 39534-5300
tooth
DDSa
Medical Center of Delaware, Wilmington, Del. ‘“At-home bleaching” with 10% carbamide peroxide and vacuum-formed splints is gaining wide acceptance as a simple, safe, and effective technique to lighten teeth (Fig. 1). Among its advantagesover in-office bleachinglights and wands are (1) lesschair time for the patient and the dentist, (2) less operative and postoperative discomfort, (3) easeof “touch up” treatments if necessary,and (4) usually lessexpenseto the patient. A disadvantage of vacuum-formed splints used to hold the carbamide peroxide solution against the teeth is the inability to bleach a single darkened tooth (for example, a discolored endodontically treated tooth). A resolution to this problem is the useof a preformed plastic crown form to hold the solution against the tooth. BAssistant 10/4/31350
2. Preformed plastic crown form trimmed and in place. Fig.
attending.
Fig. 9. Darkened endodontically treated lateral incisor.
THE
JOURNAL
OF PROSTHETIC
DENTISTRY
Fig.
3. Post-bleaching of lateral incisor shown in Fig. 1.
281
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
