9th Lobby

Ninth District Headquarters Office - Hawthorne, NY


2022 Ninth District President

Dr. Stephen Ossen

New Dentist Survival Guide Series - Register today!

New Dentist Survival Guide Series

Did you miss a session in the series? We've got you covered with all the recordings!

SPI Rate 8

We're here to support you.

Join us for 2023 and get free membership for the rest of 2022.* *Offer details listed on website.

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Office Safety Marketing Toolkit

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

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ADA Encourages Vaccine


ADA strongly encourages COVID-19 vaccination among dental professionals

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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.

New Ninth District Lgo

~ Save the Date ~

9th District Annual Meeting

 Wednesday, November 16, 2022

8:00 - 3:30pm

"RDIP: A Morpho-Therapeutic Approach to Predictable Implant Dentistry"

Jonathan Esquivel, D.D.S.

 Westchester Country Club - Rye, NY

Ph: 914-747-1199

Email: ninth@ninthdistrict.org

Latest News Around the Tripartite

Around the Ninth District

WEBINAR – "Dental Implant Complications"

WEBINAR – "Dental Implant Complications"


Instructor:   Ira H. Orenstein, DDS
                 Full-time General Dentist at the James J Peters VA Medical             Center, Chief Dental Services; Assistant Clinical Professor, Dept of Restorative Dentistry at Columbia University School of Dental and Oral Surgery

Synopsis: This presentation will address a variety of dental implant complications and strategies to optimize predictability. Included are:

Patient Cohorts

Peri-implantitis as it relates to comorbidities, medications, luting agents, implant texture, oral hygiene, and occlusion.

Occlusal overload, biomechanics and prosthesis fit

Prosthesis strength

Cheek biting

Opening of contacts

Retrievability, screw vs. cement retention

Screw loosening and breakage