Skip header and navigation

2 records – page 1 of 1.

dental amalgam proportion scale

https://mhc.andornot.com/en/permalink/artifact13537
Dates
1940
1970
circa 1940-1970
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020416 a-d
Description
Black plastic dental amalgam scale; rounded triangular base (a) with three rounded feet with three graduated sizes of silver metal rods and raised silver metal disc; scale (b), long tubes with cone-shaped receptacles at ends; one, with a silver metal screw on bottom marked for mercury, the larger r…
  5 images  
Accession Number
010020416 a-d
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Equipment
Dental Materials
Weights and Measures
MM= Dental Restoration, Permanent -- alloy/amalgam
Description
Black plastic dental amalgam scale; rounded triangular base (a) with three rounded feet with three graduated sizes of silver metal rods and raised silver metal disc; scale (b), long tubes with cone-shaped receptacles at ends; one, with a silver metal screw on bottom marked for mercury, the larger receptacle marked for alloy; adjustable silver metal bolt attached to each via square loop, with long pins coming down; pins rest on pair of metal rods stands on base as a pivot or balance, with the mercury receptacle over the raised disc; black plastic cone-shaped funnel (c); single sided paper instruction sheet (d) included.
Number Of Parts
4
Part Names
a - base - Size: Length 11.7 cm x Width 6.0 cm x Depth 4.4 cm
b - balance - Size: Length 15.0 cm x Width 2.5 cm x Depth 2.4 cm
c - funnel - Size: Depth 2.6 cm x Diam. 3.0 cm
d - instructions - Size: Length 27.5 cm x Width 21.3 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Crescent Dental Mfg. Co.
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1940
1970
circa 1940-1970
Date Remarks
Based on design
Material
metal: silver
plastic: black
paper: tan
ink: black
Inscriptions
Embossed on base: "SILVERLOY // PROPORTION // SCALE // CRESCENT DENTAL MFG. CO. CHICAGO, U. S. A."; engraved on balance: "MERCURY // ALLOY // CRESCENT"
Permanent Location
(a-c) Storage Room 0010
0010-B
(d) Storage Room 2005
2005-2-5 Box 22
Condition Remarks
Metal balance on (b) slightly tarnished; edges of funnel (e) chipped
Copy Type
Original
Reference Types
JPG
Reference Comments
CD #1
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Mark Trepanier from Farnham, Quebec; this scale was used to measure out the correct proportions of mercury and metal alloy, which together make up dental amalgam, used to fill cavities
Images
Less detail

dental amalgam proportion scale

https://mhc.andornot.com/en/permalink/artifact13390
Dates
1940
1970
circa 1940-1970
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020268 a-b
Description
Black plastic dental amalgam scale; rounded triangular base (a) with three rounded feet with three graduated sizes of silver metal rods and raised silver metal disc; scale (b), long tube with cone-shaped receptacles at ends; one, with a silver metal screw on bottom marked for mercury, the larger re…
  3 images  
Accession Number
010020268 a-b
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Equipment
Dental Materials
Weights and Measures
MM= Dental Restoration, Permanent -- alloy/amalgam
Description
Black plastic dental amalgam scale; rounded triangular base (a) with three rounded feet with three graduated sizes of silver metal rods and raised silver metal disc; scale (b), long tube with cone-shaped receptacles at ends; one, with a silver metal screw on bottom marked for mercury, the larger receptacle marked for alloy; adjustable silver metal bolt attached to each via square loop, with long pins coming down; pins rest on pair of metal rods stands on base as a pivot or balance, with the mercury receptacle over the raised disc.
Number Of Parts
2
Part Names
a - base - Size: Length 11.7 cm x Width 6.0 cm x Depth 4.4 cm
b - balance - Size: Length 15.0 cm x Width 2.5 cm x Depth 2.4 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
Crescent Dental Mfg. Co.
Site Made (City)
Chicago
Site Made (State)
Illinois
Site Made (Country)
United States of America
Dates
1940
1970
circa 1940-1970
Date Remarks
Based on design
Material
metal: silver
plastic: black
paper: tan
ink: black
Inscriptions
Embossed on base: "SILVERLOY // PROPORTION // SCALE // CRESCENT DENTAL MFG. CO. CHICAGO, U. S. A."; engraved on balance: "MERCURY // ALLOY // CRESCENT"
Permanent Location
(a-c) Storage Room 0010
0010-B
Condition Remarks
Metal balance on (b) slightly tarnished
Copy Type
Original
Reference Types
JPG
Reference Comments
CD #1
Research Facts
Dr Ralph and Mrs Olga Crawford donated their extensive Canadian dental collection to the DCF to create the museum in 1997; further donations were received while Dr Crawford was Curator Emeritus at the Dental Canada Museum until its closure in 2008; this item was donated by Dr. Mark Trepanier from Farnham, Quebec; this scale was used to measure out the correct proportions of mercury and metal alloy, which together make up dental amalgam, used to fill cavities
Images
Less detail