![](https://coimages.sciencemuseumgroup.org.uk/2/191/medium_thumbnail_a630108__0001_.jpg)
Shade guide for "Bio-Trey" silicate filling material
![Shade guide for "Bio-Trey" silicate filling material (filling shade guides)](https://coimages.sciencemuseumgroup.org.uk/288/59/medium_1980_1358_0397__0001_.jpg)
Shade guide for "Bio-Trey" silicate filling material, by the Amalgamated Dental Co., England, 1965-1975
Details
- Category:
- Dentistry
- Object Number:
- 1980-1358/397
- Materials:
- plastic (acrylic)
- Measurements:
-
overall: 8 mm x 117 mm x 41 mm, .011 kg
- type:
- filling shade guides
- credit:
- Gift of G Williams