General Information

Serial #

N/A

Part Number

1

Total Parts

6

AKA

N/A

Patents

N/A

General Description

STEEL

Dimensions

Note: These reflect the general size for storage and are not necessarily representative of the object's true dimensions.

Length

15.0 cm

Width

N/A

Height

N/A

Thickness

N/A

Weight

N/A

Diameter

N/A

Volume

N/A

Lexicon

Group

Medical Technology

Category

Dentistry

Sub-Category

N/A

Manufacturer

AKA

Chandler

Country

England

State/Province

Unknown

City

Unknown

Context

Country

Canada

State/Province

Ontario

Period

THIS TYPE OF BUR PROBABLY USED C.1780-1880S, AND POSSIBLY LATER. THESE BURS MAY HAVE BEEN USED C.1900-1930

Canada

PART OF A COLLECTION OF DENTAL & DENTURE MAKING EQ. ORIGINALLY USED/ ASSEMBLED BY P. HANNAFORD. MR. HANNAFORD WORKED IN THE DENTAL INDUSTRY FOR MANY YEARS. C.1916-7 HE WAS HIRED BY ALLEN & ROLLASTON LTD., TORONTO. OTTAWA LAB. EST'D. 1929; & LABS. OPERATED IN HAMILTON & MONTREAL. C.1967 A&R LTD. SOLD TO SHAW DENTAL LABS.

Function

FOR ENTRY INTO AND REMOVAL OF CARIOUS MATERIAL IN TEETH. INVERTED CONE BURS USED TO PRODUCE UNDERCUTS AT JUNCTION OF PULPAL FLOOR & LATERAL WALLS. WHEEL BURS USED TO CREATE RETENTION GROOVES, OPEN OCCLUSAL SURFACES & TO REDUCE INCISAL EDGES. (REF.1, P.446)

Technical

EARLY HAND-CUTTING INSTRUMENTS, PRECURSERS TO MOTOR-DRIVEN OR ROTARY CUTTING BURS. MECHANICAL OR MOTOR DRIVEN DENTAL UNITS INTRODUCED IN 1870S, BUT NOT FULLY DEV'D UNTIL 1940S; THEY, USED WITH EFFECTIVE ANESTHETICS & IMPROVED FILLING & RESTORATION MATERIALS & TECHNIQUES, HERALDED MODERN, PAINLESS DENTISTRY. THESE BUR HEAD SHAPES STILL USED C.1980S. (REF.1, PP.446-448)

Area Notes

Unknown

Details

Markings

.1-.6 ALL STAMPED 'CHANDLER' ON HANDLERS/.1-.2 &.4-.5 ALSO STAMPED 'WARD'

Missing

NONE

Finish

.1-.6 HANDLES HAVE BEEN CHEMICALLY TREATED TO PRODUCE BLUED FINISH

Decoration

N/A