COVID-19 Vaccine
Dentists are part of Phase 1a in COVID-19 vaccination distribution.
Scam Alert
Beware! Dentists have been receiving voice phishing calls, emails, faxes. These fake calls/emails/faxes may appear to be from SED or OP, and typically the caller will try to get personal data from the licensee.
9th Lobby

Ninth District Headquarters Office - Hawthorne, NY

IMG_3455 (002)

2021 Ninth District President

Dr. Roberto Rodriguez

Woman cleaning dental chair

Office Safety Marketing Toolkit

A members-only, customizable marketing toolkit complete with videos, graphics and accompanying captions for use across social & more!

View Toolkit
New Dentist Survival Guide series information

New Dentist Survival Guide Series

Join us for a series of five interactive sessions with experts in each field, including colleagues who have been in your shoes.

Renew your membership

Renew Today

Auto-renew and payment plan options available.

Pay Dues
ADA Encourages Vaccine


ADA strongly encourages COVID-19 vaccination among dental professionals

Read more.

Welcome to the Ninth District Dental Association

The Ninth District Dental Society was formed in 1909 and renamed to the Ninth District Dental Association in 2002. We have a membership of over 1500 dentists in 5 counties: Westchester, Rockland, Dutchess, Orange and Putnam.

In its quest to serve both the public and the profession, the Ninth District embodies the highest ideals.

The mission of the 9th District Dental Association is to serve and support its members and the public by improving the oral health of our community through Advocacy, Continuing Education and Camaraderie.

COVID-19 Resources

Latest News From The Ninth District

Course #214 - WEBINAR - Modern Anterior Composite Techniques

  • Tue, Nov 23, 2021 | 7:00 PM - Tue, Nov 23, 2021 | 9:00 PM
  • Location: ZOOM Teleconference
  • Contact: Diane Darby
  • Email:
  • Phone: 914-747-1199

Instructor: Arthur R. Volker, DDS, MSEd 
    Graduated from Columbia University School of Dental & Oral Surgery. Chairs        New Dentist Committee, Member-Continuing Ed Committee & Fellow of the            Academy of General Dentistry. Diplomate, World Congress of Minimally                  Invasive Dentistry, Fellow – American College of Dentists. Dr. Volker maintains      a private practice in NY with emphasis on cosmetic & minimally invasive                dentistry.


Synopsis: There are a plethora of composite materials and matrices available on the market. This course aims to give the practitioner insight into some of the modern techniques available today to make modern, direct composite simple and predictable.

Attendees will learn to: • Apply principles of smile design and analysis of proportions. • Integrate mathematical algorithms of dental esthetics to smile design. • Discuss composite options, as well as determinants for matrix selection. • Systematize preparation protocols such as isolation and particle abrasion for carious and non-carious restorations. • Understand the methodologies available for direct composite – including layering and injection modeling. • Discuss polishing techniques.