Dr. Ralph and Mrs. Olga Crawford Canadian Dental Collection
Category
Dental
Classification
Dental
Accession Number
010020174 a-b
Description
True Dentalloy dental alloy bottle and stopper; rectangular clear glass bottle (a) with indented sides and back; brown rectangular paper label affixed to front and printed with green ink states product name, weight and manufacturer's information; smaller label on side printed with black ink mention…
True Dentalloy dental alloy bottle and stopper; rectangular clear glass bottle (a) with indented sides and back; brown rectangular paper label affixed to front and printed with green ink states product name, weight and manufacturer's information; smaller label on side printed with black ink mentions American Dental Association specifications; bottle tapers at top to round opening; neck of bottle features green label with product name; translucent glass stopper (b) fits into bottle with round clear glass circle at top.
Number Of Parts
2
Part Names
a - bottle - Size: Length 9.0 cm x Width 4.2 cm x Depth 3.0 cm
b - stopper - Size: Depth 2.9 cm x Diam. 3.5 cm
Provenance
Transfer from the Dental Canada Fund; previously housed in the Dentistry Canada Museum (Ottawa)
(a) Printed on label: "TRUE DENTALLOY // CONTENTS 5 OUNCES // TRUE DENTALLOY // TRADE-MARK REG IN CANADA // AND ELSEWHERE // S. S. WHITE COMPANY // OF CANADA LIMITED // MADE IN CANADA"; printed on side label: "GUARANTEED TO COMPLY WITH // A. D. A. SP [Illeg.] // REVISED [Illeg.]"
Permanent Location
Storage Room 0010
0010-A3-6
Condition Remarks
Paper label is very darkened, worn, and torn in places; remnants of silver metal inside bottle
Copy Type
Original
Reference Types
Book
JPG
Reference Comments
“S.S. White Dental Catalog, Catalog-G”, S.S. White Dental Mfg. Co., 1915, p. 7 (S. S. White True Dentalloy); "Material in Dentistry: Principles and Applications, 2nd ed.", Jack L. Ferracane, 2001, p. 4, 122
CD #10
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; True Dentalloy was S. S. White's dental alloy for use in making amalgam fillings, and it consisted of a high percentage of silver (around 70%) and a mix of tin, copper and zinc; amalgams were first used in France in the early 19th century, and involved amalgamating metals with mercury; the modern 'recipe' was perfected by Dr. G. V. Black in the 1890s in Chicago, and S. S. White used his method to create their Dentalloy; in their catalogue they state their alloy is perfectly balanced, meaning the expansion of one metal is balanced by the contraction of another, and tempered, meaning it is aged so that the metals will remain stable