Welcome to the new home of the Tri County Dental Hygienist's Association

View our upcoming seminarsMeet our Staff

Take a look around!

Event & seminar schedule's and information, video tutorials and more.

View our upcoming seminarsMeet our Staff

TriCountyDH.com is new and improved!

We are a component of the Ohio Dental Hygienists's Association as well as a part of the American Dental Hygienists' Association. Our component is in Northeastern Ohio and consists of three counties: Trumbull, Mahoning, and Columbiana.
Tri-County DHA is committed to being an organization that supports our local hygienists' so that they may continue to learn and grow in their careers as dental hygienists. Please feel free to look around our site and contact us with any questions.

adha membership


Click the logo above to renew your current membership, to become a member, or to convert a student membership.


The Tri County Dental Hygienists' Association is only as strong as the team behind it.
Meet the team below.

Join our Facebook group to stay informed.

Join now!


Have a look and see what courses are coming up, click the document below to print out your registration form.

2016 Registration Medical Emergency Home Studies Course

The Dr. Madeleine Haggerty dental hygiene program annual dental hygeiene seminiar

The Ohio Room in Kilcawley Cente

The Chamber of Self-Medication Secrets course will provide participants with an overview of the dental considerations of the most popular prescription drug, over-thecounter drugs, herbal products and nutritional supplements patients use to self-medicate, including a discussion of th...

September 23rd, 2016
Read More

CPR for the healthcare provider

Columbiana Library

Instructors Mike and Sandy Kerr are from the American Heart Association. Certification is provided through the American Heart Association and is valid for 2 years. This course

October 29th, 2016
Read More

Nutrition update for dental hygienists

Cortland Branch Library Meeting Room

This course will include an overview of current nutrition topics; including changes to the nutrition facts food label, sugar substitutes, and hidden sugars in food and beverages...

March 30th, 2017
Read More

We are committed to you.

Dental Hygiene Resources

Some useful references links below

Ohio Department of Health

The Ohio Department of Health (ODH) is a cabinet-level agency, meaning the director reports to the governor and serves as a member of the Executive Branch of Ohio’s government.

Ohio State Dental Board

Licesnsing information, Licensure verification, laws, rules, policies & the latest news can all be found here at the Ohio state dental boards web site.

Ohio Dental hygienists' Association

Our mission is to advance and secure the profession of dental hygiene, to improve and protect the public's total health and to ensure access to quality oral healthcare.

American Dental hygienists' Association

ADHA believes in helping dental hygienists achieve their full potential as they seek to improve the public’s oral health.

YSU Dental hygiene

The Pennsylvania Department of State is one of the oldest agencies in the nation, with roots that reach back nearly a century before the Revolutionary War.

Pennsylvania State Dental Board

The mission of the Bitonte College of Health and Human Services is to transmit knowledge, develop critical thinking, and to serve society through holistic, integrative, and quality certificate, associate, baccalaureate, and graduate degree programs.

Training Videos

Medical emergencies in the dental office

Medical emergencies in the dental office part 1A

Medical emergencies in the dental office part 1B

Medical emergencies in the dental office part 1C

Medical emergencies in the dental office part 1D

Medical emergencies in the dental office part 1E

Medical emergencies in the dental office part 2A

Medical emergencies in the dental office part 2B

Medical emergencies in the dental office part 2C

Medical emergencies in the dental office part 2D

Fun Facts

Call us, email us or stop by the office, we're always here for you!


Happy Staff Members


Facebook Members


Twitter Followers


Years of Service

Give us a Shout

P: available soon
M: available soon