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dental measuring spoon

https://mhc.andornot.com/en/permalink/artifact13506
Dates
1920
1950
circa 1920-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020385
Description
Silver and yellow metal spoon for mixing and measuring dental porcelain; flat rectangular handle with scoops on each end; one is slightly smaller than the other; instructions engraved on front of handle; manufacturing information engraved on back of handle
  4 images  
Accession Number
010020385
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Equipment
Weights and Measures
Description
Silver and yellow metal spoon for mixing and measuring dental porcelain; flat rectangular handle with scoops on each end; one is slightly smaller than the other; instructions engraved on front of handle; manufacturing information engraved on back of handle
Number Of Parts
1
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Maker
L.D. Caulk Company
Site Made (City)
Milford
Site Made (State)
Delaware
Site Made (Country)
United States of America
Dates
1920
1950
circa 1920-1950
Material
metal: silver, yellow
Inscriptions
Engraved on handle: "2 Portions Powder ALWAYS USE 3 DROPS OF LIQUID 3 Portions Powder"; engraved on back of handle: "Caulk MIX MISER for SYNTHETIC PORCELAIN"
Permanent Location
Storage Room 0010
0010-B
Dimension Notes
Length 13.3 cm x Width 1.0 cm x Depth 0.6 cm
Condition Remarks
Silver plating is mostly gone, revealing yellow metal underneath
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
Images
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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
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portable gold scale

https://mhc.andornot.com/en/permalink/artifact13386
Dates
1900
1950
circa 1900-1950
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
Accession Number
010020264 a-i
Description
Portable gold scale in case; silver metal oval case (a), enamelled in green on outside, black on inside; brown wooden section with three cut-out cylinders for holding weights; largest space is covered by yellow metal disc that swings on hinge; yellow metal scale (b) consists of horizontal branch; t…
  2 images  
Accession Number
010020264 a-i
Collection
Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Diagnostic & Treatment Artifacts
Classification
Dental
MeSH Heading
Dental Equipment
Dental Casting Technic
Weights and Measures
Description
Portable gold scale in case; silver metal oval case (a), enamelled in green on outside, black on inside; brown wooden section with three cut-out cylinders for holding weights; largest space is covered by yellow metal disc that swings on hinge; yellow metal scale (b) consists of horizontal branch; three chains hang down from each end; chains hook onto two shallow bowls; cylindrical metal loop comes upward from top of branch, with hook attached at end to hang scale; two yellow metal cylindrical weights with tapering handles, one equals one ounce (c), the other 1/2 ounce (d); five yellow metal disc-shaped penny weights; 5 dwt (e), 2 dwt (f, g), 1 dwt (h), 1/2 dwt (i)
Number Of Parts
9
Part Names
a -case - Size: Length 20.1 cm x Width 9.0 cm x Depth 3.6 cm
b - scale - Size: Length 28.0 cm x Width 22.5 cm x Depth 7.0 cm
c - ounce weight - Size: Length 2.6 cm x Diam. 1.6 cm
d - ounce weight - Size: Length 2.2 cm x Diam. 1.2 cm
e - penny weight - Size: Depth 0.3 cm x Diam. 2.2 cm
f - penny weight - Size: Depth 0.1 cm x Diam. 1.8 cm
g - penny weight - Size: Depth 0.1 cm x Diam. 1.8 cm
h - penny weight - Size: Depth 0.1 cm x Diam. 1.5 cm
i - penny weight - Size: Depth 0.1 cm x Diam. 1.1 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
Dates
1900
1950
circa 1900-1950
Date Remarks
Based on design
Material
metal: yellow, silver
enamel: green, black
wood: brown
Inscriptions
(a) Printed on wood: "TROY TROY"; handwritten inside box: "24 gr = 1d // 20 dwts = 1 g"; (c) engraved on weight: "1 // OZ"; (d) engraved on weight: "1/2"; (e) engraved on weight: "5 // DWT. // 5 // PENNY // WEIGHTS"; (f, g) engraved on weight: "2 // DWT. // 2 // PENNY // WEIGHTS"; (h) engraved on weight: "1 // DWT. // 1 // PENNY // WEIGHT"; (i) engraved on weight: "1/2 // DWT. // 1/2 // PENNY // WEIGHT"
Permanent Location
Storage Room 0010
0010-B
Condition Remarks
Enamel peeling inside and outside case; metal tarnished on scale and weights; weights have darkened wood inside case; one chain is unattached from balance
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. Kirk Preston from Fredericton, New Brunswick; the item was brought to his dental office by a patient whose uncle was a dentist
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