Welcome to Our Practice

Who We Are

We are a team of passionate individuals with the relentless desire to offer you the opportunity for optimal oral health. We do this with exemplary customer service and the incessant pursuit of advanced education. We create the most beautiful smiles, make the most comfortable crowns and fillings, and give the gentlest injections and cleanings. Does this sound like something you may be interested in? We would love to meet you!

Mission Statement

Our mission is to be your advocate, first and foremost, and provide each patient with superior, individualized, and comprehensive oral healthcare nurtured by a relationship based practice, between doctor and patient and staff. Through co-discovery, dialogue, respect, then admiration, the highest level of care may be experienced by all who mutually participate and share.

Our Latest News 

In our efforts to continue to push the frontiers of science and service, we rolled out new programs in 2023 for our patients best opportunities to achieve their best oral health and wellness:

Salivary and DNA Testing  

The science of salivary diagnostics has exploded over the last few years.  It’s now possible to have personalized medicine in dentistry.  We at UMDA strongly believe in optimizing your overall health. Oral health is the gateway.  If we can obtain oral health, by resolving inflammation, and lowering bad bacteria you have chance at systemic health.  If our mouth is not healthy nothing down the line can achieve whole body health.  We will be offering ways to test for periodontal disease and can give you an idea of your genetic predisposition to inflammation.  We know that inflammation is the root cause of disease.  Inflammation is preventable and we are here to offer you a partnership in health so that we may all have a better quality of life and increased longevity.  Please ask us about our new salivary testing methods.  If we detect any increase in inflammation like bleeding gums or any stage of periodontal disease, we will be offering the salivary lab test, education, and treatment depending on your results.  

Our Oral Health and Wellness Benefits Plan 

We established an In Office plan for those patients who do not have dental benefits, as well as those who no longer like their plans or no longer wish to be bound by the control and limits of what dental benefits do not provide.  There is no such thing as dental "insurance", though it may be sold as such.  They are defined benefit plans that give the patient a stipend to help defray the costs of oral health.  Please scan the QR code for more information.

wellness brochure

David St. Ledger, DDS

At Upper Montclair Dental Associates, we believe that a dentist and patient become a team for treating an individual’s dental needs. Our dentist spend most of their time listening to understand your concerns and responding with the best treatment options for you. With the help of our professional staff, they also follow up to make sure that general pain is relieved, problems are resolved and your health improves.

We also want our patients to be informed about dental problems and treatments, because informed patients make better decisions about their health and well being. That is why we’ve included an extensive section on this web site covering the full array of topics associated with dentistry and dental diagnoses and treatments. We encourage you to look through these pages whenever you have an interest or concern about your dental needs and care.

We also know that convenience in the Montclair area is important to your selection of a dentist. In these web pages you’ll find information about Upper Montclair Dental Associates office, including our Montclair location, maps, directions, hours, insurance policies and appointment scheduling. Please feel free to contact us with any questions you have or to request an appointment. We hope you’ll find our practice offers the accessibility and personal commitment you look for from a dentist.

What makes our Office rather unique is our comprehensive approach in evaluating and in treatment. A single tooth alone cannot walk through our doors. People do. What may be perceived as a tooth problem may have started as a gum (periodontal) problem, or a bite problem, or a problem from bad habits. We evaluate the entire craniomandibular system: your teeth, gums, bone, ligaments, jaws joints, and musculature. How all of those parts work together bio-mechanically is often left as clues on your teeth and in your gums. It makes a simple treatment plan simpler, and clarifies the more complex treatment plan. All of this is done so we may educate you on your oral health, and offer you options and solutions to fit our care into your lifestyle.

Office hours are by appointment only. We are open evenings and certain weekends. Our Office is warm, quaint, and friendly. The atmosphere is jovial. We try not to take ourselves too serious. The staff is second to none. They are the most integral part of our practice. Their proficiency and expertise allow Dr. St. Ledger  to spend more time with you. Simply put, we are a family. And our family extends an invitation to meet yours!

Meet Our Doctors

Learn Who We Are

  • David St. Ledger,

    Dr. David St. Ledger is committed to learning. In 1990, he received his undergraduate degree in Biochemistry and minored in Sociology from The University of Scranton. He also holds and successfully defended his undergraduate thesis in molecular biology with two years of laboratory research. 

    Read more about Dr. David St. Ledger


See What Patients Say About Us

    My implant was perfect. Very happy with the results!I would highly recommend Dr St Ledger!

    Laura R.

    Can a trip to the dentist actually be pleasant? Yes! Excellent job by Dr. St. Ledger and staff.

    Tom M.

    Highly proficient, courteous, and professional staff. Dr. St Ledger takes and interest in his patients, listens to what they have to say, and genuinely cares about the patient’s teeth.

    Fred P.

    I highly recommend Upper Montclair Dental Associates. Dr. St Ledger and his exceptional staff are above and beyond. Knowledgeable, Empathetic, Professional, and Caring.

    Traci G.

    Dr. St. Ledger is solid. His dental work is spot on. He is an expert in his field and his work is above expectations. Great staff!

    Jeff A.

Featured Articles

Read about helpful topics

  • Bridges

    When you lose a tooth, it affects not just the appearance, but the function of your smile. It can be difficult to eat or speak naturally, extra stress is put on your remaining teeth, you’re at greater risk for developing gum disease, your remaining teeth can shift out of position causing bite problems, ...

    Read More
  • Orthodontic Retention

    Getting your braces off is definitely a cause for celebration. You can finally enjoy your new smile after all that work and effort! But getting your braces off isn’t the end of treatment. Once your braces come off, you will enter the retention period of treatment. During the retention period, you will ...

    Read More
  • Inlays and Onlays

    Inlays and onlays are indirect restorations used to repair molars and premolars damaged by decay or trauma. Inlays and onlays fit more securely and last longer than fillings, strengthen compromised teeth, and preserve more natural tooth structure than crowns. An inlay is used to restore the center of ...

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  • Dental Implants

    If you have recently dealt with an injury or disease that affected your oral health, there are options available to recover the smile you once had. You may even be able to achieve a better smile than the one you had. Dental implants make it possible to renew your smile if you have lost some teeth. There ...

    Read More
  • Tooth Decay Prevention

    What is tooth decay? Tooth decay begins with the Streptococcus mutans bacteria. These bacteria join with food particles and fluids in the mouth to create plaque, a constantly forming biofilm which sticks to the surface of tooth enamel. The bacteria in plaque convert the sugars in our foods into lactic ...

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  • Root Canal Treatment

    Every tooth has two sections: a crown, the visible part of the tooth above the gum line, and one or more roots, which anchor the teeth within the jaw. Each tooth has three basic layers: an outer layer of hard enamel (which protects the crown) or cementum (which covers the root), a middle layer of softer ...

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  • Fillings

    The bacteria in plaque produce acids that erode tooth enamel, eventually creating a hole, or cavity, in the tooth surface. Left untreated, this decay can spread to the interior of the tooth, and might lead to the need for a crown, a root canal, or even extraction. When caught early, your dentist can ...

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  • Veneers

    A dental veneer is a thin, durable porcelain shell that is custom-fabricated to cover the front of a tooth. Veneers can restore the appearance of teeth with chips, cracks, and stains, can close small gaps between the teeth, and can reshape misshapen or slightly misaligned teeth. Veneers are a popular ...

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  • Educational Videos

    Take a few minutes to watch our educational videos and learn more about different dental treatments and procedures. Video topics include general & cosmetic dentistry, Implants, oral health and hygiene, orthodontics and preventative dentistry. ...

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  • Laser Decay Diagnostics

    Using lasers, dentists can detect tooth decay that is not yet visible and would otherwise be undiagnosed using traditional methods. Laser cavity detection is based on the fact that healthy tooth structure reflects light, or “fluoresces,” differently than does decayed tooth structure. Teeth with decay ...

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Contact Us

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Our Two Locations Just a Brief Walk from Each Other

Find us on the map

Hours of Operation - Lorraine and Bellevue Campus Combined

Our Regular Schedule


9:00 am-7:00 pm


8:00 am-4:00 pm


8:00 am-7:00 pm


8:00 am-4:00 pm


8:00 am-2:00 pm


9:00 am-2:00 pm