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Sayville’s Choice for Restorative Dentistry

Beautifully Designed – Made for Function

When something goes wrong with your smile, you want to be sure that you are getting the healthiest, most comfortable and most attractive restoration possible. That is what you will always find at the office of Richard M. Sigismondi, DMD.

Metal Free Dentistry for Health and Beauty

We never use metal in our dental fillings – not only does metal in your mouth look unattractive and outdated, it is also unhealthy for your teeth and your body. Old-fashioned silver fillings contain Mercury, a known neurotoxin. They also expand and contract with changing temperatures in your mouth and allow bacteria to creep in under the filling.

Instead we offer the healthiest and strongest alternatives such as pure porcelain inlays and onlays, crowns and implant restorations – and they can all be designed and created right here in our office with CEREC 3D technology. This provides us perfect control over the complete restoration and saves you a tremendous amount of time allowing for a precise fit the first time. With CEREC 3D, your crown or restoration can be placed the same day, so you won’t have to deal with a temporary restoration, wait for the laboratory or return for final placement. Our patients appreciate the convenience of one appointment and the need for no additional anesthetics.

Pain-Free Root Canals and Oral Surgery

When your tooth hurts or has a major problem, isn’t it nice to know that you can count on Dr. Sigismondi for treatment? We approach endodontic procedures (such as root canal therapy) and extractions with your absolute comfort in mind.

We always try to preserve your natural tooth structure. That may mean the need for a root canal to clear infection, stop pain and save your tooth.

If there is damage or infection that warrants tooth removal, you can rest assured that oral surgery performed by Dr. Sigismondi will be precise and as painless as possible. Remember, if you are nervous or just want to rest through your tooth removal, sedation dentistry is always available.

Secure Replacements for Missing Teeth

Losing a tooth or teeth can be devastating – unless you have replacement options that can not only bring back your smile but also allow you to eat, speak and laugh with total comfort!

Dr. Sigismondi has been designing and planning the precise placement of dental implants for 25 years using only the best materials in the industry. With the advanced training he has received, he can offer the convenience of “Teeth-in-a-day” with the comfort and assurance that this restoration will last your lifetime.

If you want the ultimate freedom with dental implants, we work with one of our trusted periodontists to place your implant anchor while we create a beautiful crown to blend perfectly with your own teeth (and perform just like them too!). The bone surrounding the anchor fuses together creating a very solid foundation to which the implant-supported tooth will attach. A natural looking, porcelain crown is fabricated and attached, creating a secure and solid restoration.

If you are not a candidate for implants, our partial and full dentures are custom designed to feel and look more like your own teeth. Dr. Sigismondi loves creating dentures because, to him, they offer an artistic and stylistic challenge. Every pair of dentures he creates is a unique work of art. It shows in our patient’s smiles!

Man Smiling
I have known Dr. Rich since he opened his practice in West Sayville. He is professional, knowledgeable, competent and compassionate. The "Rolls Royce" of dentists! However, I would be remiss if I did not mention his staff - Mona, Dorothy, Karen and Donna. They are professional, competent and personable as well in the performance of their duties. This support team is indispensable! Bob

Fillings, Inlays, & Onlays

Metal-free dental fillings & porcelain inlays and onlays for amazing health, strength, and beauty.
If you need repairs made in your smile but worry about mercury in silver fillings, we have the answer for you. Porcelain inlays, onlays, and composite fillings are safer, more natural-looking alternatives to amalgam fillings. Beautiful and durable, these dental inlays, onlays, and composites are formed to fit and fill most types of cavities and are almost impossible to distinguish from the natural tooth. And if your old metal fillings are making your smile unattractive and dark, we can easily replace them with these attractive smile restoration alternatives. Ask us about our metal-free restorations today!

Porcelain Crowns

CEREC 3D porcelain crowns created in-house, in one visit.
We know how busy life can be – and how difficult it is to find time even for necessities such as dental repairs. That’s why we are so pleased to offer CEREC one-visit crowns. CEREC is an acronym for Chairside Economical Restoration of Esthetic Ceramics – and while the name is a mouthful, it means that we can quickly and economically restore your damaged smile. Using 3D CAD/ CAM technology, we can custom design, color match, craft, and place a beautiful, all-ceramic crown in one short visit.


Partial and full cosmetic dentures for security in your smile that feels good, too!
Many people who wear dentures not only have trouble chewing, they avoid eating in public for fear that their dentures will come loose or fall out. Others never smile a full and open smile, because they feel that their dentures look artificial and unnatural. Still others find communication a struggle because their dentures interfere with their speech. Our cosmetic dentures are different. Because they are dynamically fitted to your face, bite, and jaw, they allow you to eat with much more security and speak without discomfort. They feel comfortable and do not rub or abrade the way other dentures can. Best of all, these cosmetic dentures look so much like your natural teeth, our patients are often complimented on the beauty of their smiles!


Implant restorations for tooth replacement that looks and functions just like a natural tooth.
If you are missing one or a few teeth, or if you have been considering an alternative to traditional dentures, dental implants could be an excellent way to help you regain your healthy, confident smile. Dental implants replace both the root and the tooth for the most comfortable and stable replacement solution available today. Not only do implants allow you to eat what you like and speak with complete ease, the implant post supports and stimulates your jawbone to stop deterioration and help you stay younger-looking longer! We will work with a trusted periodontist to plan and place your implant, and create strong and beautiful replacement teeth or implant supported dentures for ideal function and incredible aesthetic results.

Root Canal Therapy

Root canal therapy that can save your teeth and keep you healthy.
While some people cringe at the very mention of a root canal, we know that a root canal can be your tooth’s best friend – ending tooth pain and allowing you to keep a tooth that might otherwise need to be extracted. A root canal is performed when the pulp inside your tooth becomes damaged or decayed. If not treated, your tooth will become infected, and cause severe pain. During treatment, you are made completely comfortable, the pulp is removed, the root canal area is cleaned, the tooth is sealed, and most importantly, saved!

©2023 Richard M. Sigismondi, DMD, P.C. Achieving the balance of health and beauty. | 8 Munson Lane, West Sayville, NY 11796 Call Today: 631-563-1583 Top