Silicate Filling Material

De Trey Brothers (estab. 1899, closed 1924)
De Trey's craze proof filling material for anterior teeth. Fissure sealants were made from a resin called BIS GMA. The enamel of the tooth was etched with acid to make it adhere. The resin then shrank onto the tooth quite intimately. The manufacturers introduced a filling material called composite resin based on BIS GMA but no etching.

The donor, John Brownbill, was aware of its great potential for leakage (via shrinkage) and so never used composite resin without etch. Instead, being the last dentist to use silicate until glassionomer was introduced in the 1980s.

Object detail

silicate, plastic, paper, ink
4.2 x 16.0 x 7.7 cm
Accession Number
Credit Line
Gift of Professor John W Brownbill, 2017
Object Type
instruments/dental instruments
Henry Forman Atkinson Dental Museum Category


My shortlist

Do you know something about this object?

Be the first to comment on this object record.

Google reCaptchaThis site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.