GB688741A - Improvements in or relating to dental amalgams - Google Patents

Improvements in or relating to dental amalgams

Info

Publication number
GB688741A
GB688741A GB11568/51A GB1156851A GB688741A GB 688741 A GB688741 A GB 688741A GB 11568/51 A GB11568/51 A GB 11568/51A GB 1156851 A GB1156851 A GB 1156851A GB 688741 A GB688741 A GB 688741A
Authority
GB
United Kingdom
Prior art keywords
powder
compact
mercury
consist
particle size
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB11568/51A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Bayer AG
Original Assignee
Bayer AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Bayer AG filed Critical Bayer AG
Publication of GB688741A publication Critical patent/GB688741A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C7/00—Alloys based on mercury
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K6/00—Preparations for dentistry
    • A61K6/80—Preparations for artificial teeth, for filling teeth or for capping teeth
    • A61K6/84—Preparations for artificial teeth, for filling teeth or for capping teeth comprising metals or alloys
    • A61K6/847—Amalgams

Abstract

A process of preparing a dental amalgam comprises forming a compact containing metal powder of different particle size, the powder being prepared from a dental alloy containing 60-75 per cent of Ag, powdering the compact under a slight pressure to produce a powder of different particle size and mixing the powder with mercury. The compact may consist of coarser particles passing a sieve having 1,600 meshes per square centimeter and a third of the total weight consists of particles whose individual weight is about one-fiftieth of that of the coarser particles. The compact is preferably in tablet form and mercury may be added to the powder by a measuring dispensing device. The metal may consist of Ag and Sn with or without copper or zinc.
GB11568/51A 1950-05-17 1951-05-17 Improvements in or relating to dental amalgams Expired GB688741A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE299529X 1950-05-17

Publications (1)

Publication Number Publication Date
GB688741A true GB688741A (en) 1953-03-11

Family

ID=6091304

Family Applications (1)

Application Number Title Priority Date Filing Date
GB11568/51A Expired GB688741A (en) 1950-05-17 1951-05-17 Improvements in or relating to dental amalgams

Country Status (4)

Country Link
US (1) US2698231A (en)
CH (1) CH299529A (en)
FR (1) FR1037182A (en)
GB (1) GB688741A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3141761A (en) * 1962-02-23 1964-07-21 Walter U Schmitt G M B H Fa Dr Pulverized silver alloys for use in producing dental amalgams
US3305356A (en) * 1963-08-30 1967-02-21 William V Youdelis Dental amalgam

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB190126376A (en) * 1901-12-24 1902-01-23 Theophile Dill Improvements in Metallic Alloys for Dental Purposes
GB295163A (en) * 1927-11-29 1928-08-09 Degussa Improved manufacture of amalgams
US1963085A (en) * 1933-08-05 1934-06-19 Arthur W Gray Comminuted alloy
GB482338A (en) * 1935-09-23 1938-03-23 Baker & Co Improvements relating to measuring and dispensing apparatus
GB473381A (en) * 1935-09-28 1937-10-12 Viktor Walter Improvements in or relating to weighing scales

Also Published As

Publication number Publication date
FR1037182A (en) 1953-09-15
CH299529A (en) 1954-06-15
US2698231A (en) 1954-12-28

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