South African Division is Founded

Collagenase Activity Discovered in Gingiva

Collagen was cleaved into one-quarter and three-quarter pieces by collagenase derived from human gingiva.

Craniofacial Biology Group Established

Löe Studies Experimental Gingivitis in Humans

Central IADR Office Established

It included a full staff and the appointment of Arthur R. Frechette as the only full-time salaried Secretary-Treasurer in the history of the Association.

Continental European Division is Founded

The IADR Elects First non-North American President

Gingival Index Created

The IADR/AADR Endorse Community Water Fluoridation

Bis-GMA Becomes Popular for Use in Modern Dental Composites