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Classification and Definition of Alloys Used for Casting Substrates for Porcelain Veneering
ia
A SSO CIA T IO N REPORT
Classification and definition of alloys used for casting substrates for porcelain veneering
Council on Dental Materials, Instruments, and Equipment
w
ith the rapid increase and fluc tuation in the price of gold bullion, there has been an increasing use of al ternative alloys to the high-gold con tent alloys in dentistry. The Council has been evaluating the alternative systems and has recognized several as being safe and effective for dental use. The Council is aware, however, that confusion has arisen from the use of terms such as noble metal, gold-based alloy, precious metal, semiprecious metal, base metal, and nonprecious metal. Because of this confusion, there is no clear distinction in payment schedules when the various alloys are used under dental care programs. The Council has reviewed these terms, the Trade Practice Rules set forth by the Federal Trade Commis sion for the jewelry industry, and the various types of alloys currently avail able. The conclusions of this review, along with recognized chemical and metallurgical definitions, are as fol lows: —The element gold and the mem bers of the platinum group, including palladium, are considered noble met als. — Elements such as silver, which are not noble elements but which have in trinsic commercial value, are consid ered precious metals.
— Silver must be 92.5% fine to be called silver or sterling; if it is 90% fine, it may be called coin silver, but nothing below that may be called silver. —Only an alloy containing more than 41.66 weight percent gold (10 karat fineness) can be termed a goldbased alloy. In addition, gold must be the major element present in the alloy. — The term semiprecious alloy has no meaning in dentistry. Although used widely today in the dental indus try, there is no agreed on definition re lated to the composition of the alloy. —All alloys accepted by the Council on Dental Materials, Instruments, and Equipment must be labeled in packag ing with the weight percent of each of the three major elements present and the weight percent of any noble metals present.
C lassification system The Council therefore presents a clas sification system to define the various alloys available for use as substrates for porcelain veneering, primarily on the basis of percent noble metal con tent. It is understood that no classifica tion system is completely satisfactory, but most alloys known to be available today can be classified in this system (Table 1). Commercially available al loys are classified as shown in Tables 2-5. The list was compiled on the basis of information currently available to the Council. Revisions and updating of the list will be made when additional information becomes available.
This informational report was approved by the Council in May 1981.
Table 1 ■ Alloys intended for use as cast substrates for porcelain veneering. Classification High noble metal content Medium noble metal content Low noble metal content Base metal (nonprecious)
Wt % Au 90 Au Au
4-Pt > Au + Pt + Pt + Pt
group 5= 90 group 2= 70 group < 7 0 group = 0*
*Some base metal alloys may contain small amount of noble metal constituents.
JADA, Vol. 103, November 1981 ■ 755
Table 2 ■ High noble metal content alloys (Au + Pt group s* 90%). Noble metal content
Alloy system
Manufacturer
Alloy*
J. Aderer Inc
Ceramco Yellow Degudent G Degudent H Degudent N Degudent U Deva M Bake-on Yellow
96.0 96.3 98.0 96.7 96.0 90.6 98.0
Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd
Premium Gnathalloy Alpha #60 Albus 190 Herador P Szabo YPG Micro-Bond Hi-Life Micro-Bond Bake-On Sale Micro-Bond No. 2 Micro-Bond No. 5 Howmedica A-31 Howmedica A-12 Howmedica A-33 Howmedica Bake-On Sale Porcelain No. 1 Porcelain 130 Jelenko “O " Olympia Rx Imperial-2 Rx CG Rx Y Ceramic RxSFC Fuse X Leffco Porcast Summa Cast Porcelain No. 1 Porcelain 130 SM G2 SM G3 SM G Y Image Eclipse Noble J No Silver IMP Yellow Ceramic 2 PN Yellow Ceramic III PN Yellow Ceramic IV Pentron Concord Speyer Porcelain-Cast Auramic 2 Majestic II MF-Y UTK White UTK Yellow UTK Yellow Plus Wilkoro Hard HFG Ceramicast W ilkadium Will-Ceram Y Will-Ceram Y-2
98.1 96.2 91.2 99.0 93.0 90.0 94.8 96.9 98.3 97.8 96.9 96.9 97.8 90.1 98.3 99.0 98.0 98.0 90.0 96.9 98.5 97.0 90.0 98.7 98.7 98.7 97.5 98.9 97.7 98.7 98.0 98.0 95.0 90.0 97.3 90.2 96.9 98.5 97.0 90.0 98.5 96.9 97.8 96.1 97.2 96.8 97.2 98.5 96.5 95.0 94.8 *90.5 97.0 94.5
Au-Pd-Pt Au-Pt-Pd Au-Pd Au-Pt-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pd-Pt Au-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd Au-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pd Au-Pd-Pt Au-Pd-Pt Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pd-Pt Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd
Ceramco Inc, a Johnson & Johnson Co Dentalloy, Inc ■General Refineries, Inc Heraeus Dental Gold Corp Howmedica, Inc
I.L.G.S. J. F. Jelenko & Co Division of Pennwalt Rx. Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Golds, Inc
W. E. Mowrey Co J. M. Ney Co
Noble Metals & Alloys Co, Inc Pentron Corp
Speyer, Inc Stemgold Unitek Corp The W ilkinson Co
Williams Gold Refining Co, Inc
*A lloys in italic p rin t are A cceptable or Provisionally A cceptable u n d er th e Council A cceptance Program for Alloys For Cost Dental Restorative an d Prosthetic Devices.
Table 3 ■ Medium noble metal content alloys (90% > Au + Pt group
70%).
Alloy system
Alloy*
J. Aderer, Inc
Bond On Ceramco White Cer-Mate Degucast U Special White Bake-on White
80.0 82.0 86.0 74.7 85.0 82.0
Pd Au-Pd-Ag Au-Pd Au-Pd-Ag Au-Pd Au-Pd-Ag
Standard Yellow Dentex Albabond W Herabond N Herador PS Szabo Lite White Szabo MPG Szabo WPG Micro-Bond No. 6 Howmedica A-30 Howmedica A-32 Micro Bond White Porcelain White Porcelain IV Porcelain 12 Aristan Cameo Rx.Sp. CG Rx Ceramic Bond RxW C G Rx Universal RxSW CG Dawn Ceramic Special A ll Bond Craftsman Ceramic 222 Corona Micro-Cast Porcelain White Porcelain IV Porcelain 12 Neydium Gold Ceramic
89.2 86.2 75.0 85.0 84.0 81.0 87.0 89.0 89.2 89.2 85.7 77.9 81.0 87.5 88.0 87.5 77.5 88.0 86.5 82.0 85.5 77.0 89.8 87.4 86.6 85.5 79.8 79.3 76.3 81.1 88.0 88.0 80.4 87.4 80.0 88.0 86.5 82.0 85.5 77.0 81.8 81.9 89.4 89.5 88.7 87.5 85.5 75.0 82.0 88.0 78.0 74.9 88.0 80.5 85.5 88.0
Au-Pd-Ag Au-Pd-Ag Pd-Au Au-Pd-Pt Au-Pd Au-Pd Au-Pd-Pt Au-Pd Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd-Ag Au-Pd Au-Ag-Pd Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd-Ag-Pt Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pt-Ag Au-Pd Au-Pd Au-Pd Au-Pd
Ceramco, Inc, a Johnson & Johnson Co Dentalloy, Inc Heraeus Dental Gold Corp
Howmedica, Inc
I.L.G.S. J. F. Jelenko & Co Division of Pennwalt Rx. Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Gold
W. E. Mowrey Co J. M. Ney Co Noble Metals & Alloys Co, Inc Pentron Corp
Stemgold
The W ilkinson Co W illiams Gold Refining Co, Inc
Noble YEC Noble EWC Special Pentex 62 PN-WCG Ceramic 45 Pentex 77 Auramic 145 Auramic 210 Galaxy Merit Phoenix Royal Saturn Solar Viking Citation Shasta Ceramic White Will-Ceram Y-l Will-Ceram W Will-Ceram W-2 Will-Ceram W-3
‘ Alloys in italic p rin t are A cceptable or Provisionally A cceptable u n d er th e Council A cceptance Program for AlJovs for DflnfnJ nnrl Pmethoti/' noiil/’oc
REPORTS
Manufacturer
ASSOCIATION
Noble metal content
A S SO C IA T IO N
REPORTS
Table 4 ■ Low noble metal content alloys (Au + Pt group < 70%). Noble metal content
Alloy system
Manufacturer
Alloy*
J. Aderer, Inc
Pers-On Cer-On P.S, Alloy Albabond N Albabond O Szabo Regency Howmedica A-35 Jelstar Triumph Alloy Rx 90 Rx Conquest 2 Rx Palladent Rx 91 Opal Topaz Star Mowrey 165 Neobond II Semiprecious Neobond II Special Tempo Tempo II Noble PD-58
58.0 50.0 59.4 62.6 53.0 58.5 59.2 60.0 20.0 60.0 62.0 60.0 53.5 60.0 59.2 58.0 53.5 7.0 3.0 55.0 55.0 58.5
Pd-Ag Pd-Ag Pd-Ag Pd-Ag-Au Pd-Ag Pd-Pt-Ag Pd-Ag Pd-Ag Ni-Pd-Cr Pd-Ag Pd-Ag-Au Pd-Ag Pd-Ag Pd Pd-Pt Pd-Au Pd-Ag Co-Cr-W-Ru Co-Cr-W-Ru Pd-Ag Pd-Ag Pd-Ag
Pentex 90 Goldbond II Ceramabrite Pentex 91 Regent Strata Vista Everest Wili-Ceram W-l
60.0 62.0 60.0 53.5 67.3 53.8 59.3 59.3 53.5
Pd-Ag Pd-Ag-Au Pd-Ag Pd-Ag Pd-Ag-Au Pd-Ag Pd-Ag-Pt Pd-Ag Pd-Ag
Dentalloy, Inc Heraeus Dental Gold Corp
Howmedica J. F. Jelenko & Co Division of Pennwalt Rx Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Gold Inc W. E. Mowrey Co Neoloy Products Inc J. M. Ney Co Noble Metals & Alloys Co, Inc Pentron Corp
Sterngold The Wilkinson Co Williams Gold Refining Co, Inc
‘Alloys in italic p rint are A cceptable or Provisionally A cceptable u n d er the Council A cceptance Program for Alloys For Cast DentaJ Restorative and Prosthetic Devices.
Table 5 ■ Base metal alloys (Au + Pt group = O*). Manufacturer
Alloy*
Alloy system
Aalba Dent Inc Astro
Vera Bond Astro B-4 Astro Superior Mighty Bond Ni-Free Astro-3 Calloy Calloy 1210 Ceramalloy CeramijUoy U Biobond C&B Alloy Crownovation N P Szabo Dent-O-Bond Szabo OMNI ACA Ailoy Micro-Bond N P Micro-Bond N P 2 Omni-Cast Alloy
Ni-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr
Rexillium III Bioloy ‘C’ Rexalloy Biocast Fidelity 1000 Fidelity 2000 Neobond H Neydium N P Formula V Formula 5B Formula CS Pentiliium Brodent PNP Excel Ceral R Beta Omega Unibond Co-Span 13.5 Summit Litecast Litecast B
Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr
California Dental Products, Inc Ceramco, Inc, a Johnson & Johnson Co Dentsply International General Refineries Inc Heraeus Dental Gold Corp Howmedica, Inc J. F. Jelenko & Co Division of Pennwalt Rx Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Golds, Inc Neoloy Products Inc J. M. Ney Co Pacific Dental Products Inc Pentron Corp
Sillard Products Inc Sterngold Unitek Corp C. Vaupel Dental, Inc Williams Gold Refining Co, Inc
*Some base m etal alloys may contain small am ounts of noble metal constituents. +Alloys in italic p rin t are A cceptable or Provisionally A cceptable u n d er th e Coun cil A cceptance Program for AJIoys F or Cast Dental R estortative and P rosthetic De-
JADA, Vol. 103, November 1981 ■ 757
A SSO CIA T IO N REPORT
Classification and definition of alloys used for casting substrates for porcelain veneering
Council on Dental Materials, Instruments, and Equipment
w
ith the rapid increase and fluc tuation in the price of gold bullion, there has been an increasing use of al ternative alloys to the high-gold con tent alloys in dentistry. The Council has been evaluating the alternative systems and has recognized several as being safe and effective for dental use. The Council is aware, however, that confusion has arisen from the use of terms such as noble metal, gold-based alloy, precious metal, semiprecious metal, base metal, and nonprecious metal. Because of this confusion, there is no clear distinction in payment schedules when the various alloys are used under dental care programs. The Council has reviewed these terms, the Trade Practice Rules set forth by the Federal Trade Commis sion for the jewelry industry, and the various types of alloys currently avail able. The conclusions of this review, along with recognized chemical and metallurgical definitions, are as fol lows: —The element gold and the mem bers of the platinum group, including palladium, are considered noble met als. — Elements such as silver, which are not noble elements but which have in trinsic commercial value, are consid ered precious metals.
— Silver must be 92.5% fine to be called silver or sterling; if it is 90% fine, it may be called coin silver, but nothing below that may be called silver. —Only an alloy containing more than 41.66 weight percent gold (10 karat fineness) can be termed a goldbased alloy. In addition, gold must be the major element present in the alloy. — The term semiprecious alloy has no meaning in dentistry. Although used widely today in the dental indus try, there is no agreed on definition re lated to the composition of the alloy. —All alloys accepted by the Council on Dental Materials, Instruments, and Equipment must be labeled in packag ing with the weight percent of each of the three major elements present and the weight percent of any noble metals present.
C lassification system The Council therefore presents a clas sification system to define the various alloys available for use as substrates for porcelain veneering, primarily on the basis of percent noble metal con tent. It is understood that no classifica tion system is completely satisfactory, but most alloys known to be available today can be classified in this system (Table 1). Commercially available al loys are classified as shown in Tables 2-5. The list was compiled on the basis of information currently available to the Council. Revisions and updating of the list will be made when additional information becomes available.
This informational report was approved by the Council in May 1981.
Table 1 ■ Alloys intended for use as cast substrates for porcelain veneering. Classification High noble metal content Medium noble metal content Low noble metal content Base metal (nonprecious)
Wt % Au 90 Au Au
4-Pt > Au + Pt + Pt + Pt
group 5= 90 group 2= 70 group < 7 0 group = 0*
*Some base metal alloys may contain small amount of noble metal constituents.
JADA, Vol. 103, November 1981 ■ 755
Table 2 ■ High noble metal content alloys (Au + Pt group s* 90%). Noble metal content
Alloy system
Manufacturer
Alloy*
J. Aderer Inc
Ceramco Yellow Degudent G Degudent H Degudent N Degudent U Deva M Bake-on Yellow
96.0 96.3 98.0 96.7 96.0 90.6 98.0
Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd
Premium Gnathalloy Alpha #60 Albus 190 Herador P Szabo YPG Micro-Bond Hi-Life Micro-Bond Bake-On Sale Micro-Bond No. 2 Micro-Bond No. 5 Howmedica A-31 Howmedica A-12 Howmedica A-33 Howmedica Bake-On Sale Porcelain No. 1 Porcelain 130 Jelenko “O " Olympia Rx Imperial-2 Rx CG Rx Y Ceramic RxSFC Fuse X Leffco Porcast Summa Cast Porcelain No. 1 Porcelain 130 SM G2 SM G3 SM G Y Image Eclipse Noble J No Silver IMP Yellow Ceramic 2 PN Yellow Ceramic III PN Yellow Ceramic IV Pentron Concord Speyer Porcelain-Cast Auramic 2 Majestic II MF-Y UTK White UTK Yellow UTK Yellow Plus Wilkoro Hard HFG Ceramicast W ilkadium Will-Ceram Y Will-Ceram Y-2
98.1 96.2 91.2 99.0 93.0 90.0 94.8 96.9 98.3 97.8 96.9 96.9 97.8 90.1 98.3 99.0 98.0 98.0 90.0 96.9 98.5 97.0 90.0 98.7 98.7 98.7 97.5 98.9 97.7 98.7 98.0 98.0 95.0 90.0 97.3 90.2 96.9 98.5 97.0 90.0 98.5 96.9 97.8 96.1 97.2 96.8 97.2 98.5 96.5 95.0 94.8 *90.5 97.0 94.5
Au-Pd-Pt Au-Pt-Pd Au-Pd Au-Pt-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd Au-Pt-Pd Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pd-Pt Au-Pd Au-Pt-Pd Au-Pd Au-Pt-Pd Au-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pd Au-Pd Au-Pd-Pt Au-Pd-Pt Au-Pt-Pd Au-Pd-Pt Au-Pt-Pd Au-Pt Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd Au-Pd-Pt Au-Pd-Pt Au-Pt-Pd Au-Pt-Pd
Ceramco Inc, a Johnson & Johnson Co Dentalloy, Inc ■General Refineries, Inc Heraeus Dental Gold Corp Howmedica, Inc
I.L.G.S. J. F. Jelenko & Co Division of Pennwalt Rx. Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Golds, Inc
W. E. Mowrey Co J. M. Ney Co
Noble Metals & Alloys Co, Inc Pentron Corp
Speyer, Inc Stemgold Unitek Corp The W ilkinson Co
Williams Gold Refining Co, Inc
*A lloys in italic p rin t are A cceptable or Provisionally A cceptable u n d er th e Council A cceptance Program for Alloys For Cost Dental Restorative an d Prosthetic Devices.
Table 3 ■ Medium noble metal content alloys (90% > Au + Pt group
70%).
Alloy system
Alloy*
J. Aderer, Inc
Bond On Ceramco White Cer-Mate Degucast U Special White Bake-on White
80.0 82.0 86.0 74.7 85.0 82.0
Pd Au-Pd-Ag Au-Pd Au-Pd-Ag Au-Pd Au-Pd-Ag
Standard Yellow Dentex Albabond W Herabond N Herador PS Szabo Lite White Szabo MPG Szabo WPG Micro-Bond No. 6 Howmedica A-30 Howmedica A-32 Micro Bond White Porcelain White Porcelain IV Porcelain 12 Aristan Cameo Rx.Sp. CG Rx Ceramic Bond RxW C G Rx Universal RxSW CG Dawn Ceramic Special A ll Bond Craftsman Ceramic 222 Corona Micro-Cast Porcelain White Porcelain IV Porcelain 12 Neydium Gold Ceramic
89.2 86.2 75.0 85.0 84.0 81.0 87.0 89.0 89.2 89.2 85.7 77.9 81.0 87.5 88.0 87.5 77.5 88.0 86.5 82.0 85.5 77.0 89.8 87.4 86.6 85.5 79.8 79.3 76.3 81.1 88.0 88.0 80.4 87.4 80.0 88.0 86.5 82.0 85.5 77.0 81.8 81.9 89.4 89.5 88.7 87.5 85.5 75.0 82.0 88.0 78.0 74.9 88.0 80.5 85.5 88.0
Au-Pd-Ag Au-Pd-Ag Pd-Au Au-Pd-Pt Au-Pd Au-Pd Au-Pd-Pt Au-Pd Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd Au-Pd-Ag Au-Pd Au-Ag-Pd Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd Au-Pd-Ag-Pt Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pd-Ag Au-Pt-Ag Au-Pd Au-Pd Au-Pd Au-Pd
Ceramco, Inc, a Johnson & Johnson Co Dentalloy, Inc Heraeus Dental Gold Corp
Howmedica, Inc
I.L.G.S. J. F. Jelenko & Co Division of Pennwalt Rx. Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Gold
W. E. Mowrey Co J. M. Ney Co Noble Metals & Alloys Co, Inc Pentron Corp
Stemgold
The W ilkinson Co W illiams Gold Refining Co, Inc
Noble YEC Noble EWC Special Pentex 62 PN-WCG Ceramic 45 Pentex 77 Auramic 145 Auramic 210 Galaxy Merit Phoenix Royal Saturn Solar Viking Citation Shasta Ceramic White Will-Ceram Y-l Will-Ceram W Will-Ceram W-2 Will-Ceram W-3
‘ Alloys in italic p rin t are A cceptable or Provisionally A cceptable u n d er th e Council A cceptance Program for AlJovs for DflnfnJ nnrl Pmethoti/' noiil/’oc
REPORTS
Manufacturer
ASSOCIATION
Noble metal content
A S SO C IA T IO N
REPORTS
Table 4 ■ Low noble metal content alloys (Au + Pt group < 70%). Noble metal content
Alloy system
Manufacturer
Alloy*
J. Aderer, Inc
Pers-On Cer-On P.S, Alloy Albabond N Albabond O Szabo Regency Howmedica A-35 Jelstar Triumph Alloy Rx 90 Rx Conquest 2 Rx Palladent Rx 91 Opal Topaz Star Mowrey 165 Neobond II Semiprecious Neobond II Special Tempo Tempo II Noble PD-58
58.0 50.0 59.4 62.6 53.0 58.5 59.2 60.0 20.0 60.0 62.0 60.0 53.5 60.0 59.2 58.0 53.5 7.0 3.0 55.0 55.0 58.5
Pd-Ag Pd-Ag Pd-Ag Pd-Ag-Au Pd-Ag Pd-Pt-Ag Pd-Ag Pd-Ag Ni-Pd-Cr Pd-Ag Pd-Ag-Au Pd-Ag Pd-Ag Pd Pd-Pt Pd-Au Pd-Ag Co-Cr-W-Ru Co-Cr-W-Ru Pd-Ag Pd-Ag Pd-Ag
Pentex 90 Goldbond II Ceramabrite Pentex 91 Regent Strata Vista Everest Wili-Ceram W-l
60.0 62.0 60.0 53.5 67.3 53.8 59.3 59.3 53.5
Pd-Ag Pd-Ag-Au Pd-Ag Pd-Ag Pd-Ag-Au Pd-Ag Pd-Ag-Pt Pd-Ag Pd-Ag
Dentalloy, Inc Heraeus Dental Gold Corp
Howmedica J. F. Jelenko & Co Division of Pennwalt Rx Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Gold Inc W. E. Mowrey Co Neoloy Products Inc J. M. Ney Co Noble Metals & Alloys Co, Inc Pentron Corp
Sterngold The Wilkinson Co Williams Gold Refining Co, Inc
‘Alloys in italic p rint are A cceptable or Provisionally A cceptable u n d er the Council A cceptance Program for Alloys For Cast DentaJ Restorative and Prosthetic Devices.
Table 5 ■ Base metal alloys (Au + Pt group = O*). Manufacturer
Alloy*
Alloy system
Aalba Dent Inc Astro
Vera Bond Astro B-4 Astro Superior Mighty Bond Ni-Free Astro-3 Calloy Calloy 1210 Ceramalloy CeramijUoy U Biobond C&B Alloy Crownovation N P Szabo Dent-O-Bond Szabo OMNI ACA Ailoy Micro-Bond N P Micro-Bond N P 2 Omni-Cast Alloy
Ni-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr
Rexillium III Bioloy ‘C’ Rexalloy Biocast Fidelity 1000 Fidelity 2000 Neobond H Neydium N P Formula V Formula 5B Formula CS Pentiliium Brodent PNP Excel Ceral R Beta Omega Unibond Co-Span 13.5 Summit Litecast Litecast B
Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Co-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr Ni-Cr
California Dental Products, Inc Ceramco, Inc, a Johnson & Johnson Co Dentsply International General Refineries Inc Heraeus Dental Gold Corp Howmedica, Inc J. F. Jelenko & Co Division of Pennwalt Rx Jeneric Gold Co Division of Jeneric Industries, Inc Leff Dental Golds, Inc Neoloy Products Inc J. M. Ney Co Pacific Dental Products Inc Pentron Corp
Sillard Products Inc Sterngold Unitek Corp C. Vaupel Dental, Inc Williams Gold Refining Co, Inc
*Some base m etal alloys may contain small am ounts of noble metal constituents. +Alloys in italic p rin t are A cceptable or Provisionally A cceptable u n d er th e Coun cil A cceptance Program for AJIoys F or Cast Dental R estortative and P rosthetic De-
JADA, Vol. 103, November 1981 ■ 757