Oct 28, 2025
Brett Kessler, D.D.S., concludes his term as the ADA’s 161st president on Oct. 28 after overseeing a year of unprecedented challenges.
GSLDS New Dentist Holiday Party
Join your fellow new dentist colleagues for a sparkly holiday party at the Central Office. This event is for new dentists with graduating years 2016-2025 only. RSVP to nikki@stlouisdental.org.
Advertise with the Dental Society
Save over $1,500 with one of our NEW print and digital packages! Space limited.
GSLDS Educational Foundation
Donate to the charitable not-for-profit partner of the Greater St. Louis Dental Society.
Welcome New Members
We are happy to have you as a part of organized dentistry.
Welcome to the Greater St. Louis Dental Society
Founded in 1856, the Greater St. Louis Dental Society (GSLDS) is one of the oldest dental organizations in the world, with more than 1,000 local member dentists. The Greater St. Louis Dental Society is the local component of the Missouri Dental Association and American Dental Association. Every day, the members of the GSLDS work to serve their community and promote better oral health for all. Learn more about membership with the GSLDS.We are the ADA in St. Louis.
ADA News
Oct 28, 2025
Richard J. Rosato Rosato, of Concord, New Hampshire, assumed office as the 162nd ADA president at the close of the House of Delegates.
Oct 28, 2025
Charles Hurlburt, D.D.S., was a retired University of Oklahoma College of Dentistry professor who died in the bombing 30 years ago.
MDA News
Amalgam Resources
Resources for Requirements, Recycling
The MDA continues to answer questions about dental amalgam recycling, including this most recent one:
Is an office required to use a certain brand or type of separator?
According to the Water Protection Program of the Missouri Department of Natural Resources, there is no requirement or endorsement for any brands of separators.
40 CFR 441.30 establishes the requirements for amalgam separators. The following is the requirement from the rule most likely applies to the question,
“Compliant with either the American National Standards Institute (ANSI) American National Standard/American Dental Association (ADA) Specification 108 for Amalgam Separators (2009) with Technical Addendum (2011) or the International Organization for Standardization (ISO) 11143 Standard (2008) or subsequent versions so long as that version requires amalgam separators to achieve at least a 95% removal efficiency.”
Further detail of the specification requirements for amalgam separators can be found in 40 CFR 441.30.
Did you know MDA has a complete page on the Dental Amalgam Rule to provide information on requirements and to answer your questions.
For more details, visit the GSLDS Newsroom.
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