Expertise Ranging from Preventative Dentistry Through Full Mouth Reconstruction

The cornerstone of our practice philosophy is that we sincerely believe that dentistry involves more than simply treating your teeth; it’s about the way we treat you, your anxiety and your overall comfort. From your very first appointment, you will find that you are our highest priority. Additionally, at our Commack practice, we are committed to providing you with the highest standard of personalized dental service, in a warm and caring environment. We will nurture a relationship with you based on trust, mutual respect, and ongoing open communication. We will greet you personally and strive to run on schedule because we know that your time is just as valuable as ours. We will work diligently to earn your confidence regarding the quality of care that you will consistently receive in this office.

Once you are in the dental chair, we will do everything possible to make you feel comfortable and relaxed as we address your needs, questions, and concerns. A thorough examination and diagnosis allows our caring staff to detect existing problems and plan an effective approach in gaining and maintaining a healthy and cosmetically pleasing result. We use the latest technology to provide our patients living in the Commack area with state-of-the-art dental care in a gentle and painless manner.

Please stop by to see us at our office in Commack, New York. We are here to serve the needs of patients of all ages. Allow us to help you achieve the happy, healthy smile that so many of our patients have already come to enjoy!

When it comes to cosmetic dentistry in Commack, it is our sincere belief that it involves more than simply treating your teeth; it's about the way we treat you, your anxiety, and your overall comfort. Whether you are receiving a routine treatment like a dental exam, teeth cleaning, teeth whitening , or a more advanced procedure such as dental implants, crowns , or bridges , we are committed to providing you with the highest standard of personalized dental care in a warm and caring environment.

A Dental Experience Beyond Your Expectations

Message The Team!

Bonnie Helfner DDS

Serving the communities of Commack, Smithtown,
Northport/East Northport, Huntington, Deer Park,
Hauppauge, Kings Park, Dix Hills and Melville

645 Commack Road Commack NY 11725


What Our Clients Say About Us

  • "Fantastic staff Sarah was unbelievable"
    Robert P.
  • "Everyone is so helpful and kind."
    Robyn C.
  • "Everything went well during my last visit. Both Dr. Curro and Dr. Helfner are amazing."
    Connie M.
  • "Always a good experience, great atmosphere, very professional, wish you all happy hannukah, merry Christmas and a happy and healthy new year"
    Doris C.
  • "Pleasant as a dentist visit can be."
    Jeffrey K.
  • "Patient and caring"
    Parker M.
  • "Excellent service as always. Professional and personal in terms of patient care. Consistent in keeping patients like me comfortable, as I am able to ask questions. My family loves the practice, the reassurance, and the staff!"
    Jennifer A.
  • "The care of your wellbeing, both cosmetically and financially is evident and much appreciated. They banish pain, providing a nurturing environment that transcends most medical practices. I trust my smile to Bonnie and her polished professional staff."
  • "As good an experience you can have for a dental visit"
    Gerald D.
  • "Great staff everyone is so nice, the office is super clean and the Dr Curro was great asking how I was throughout the whole procedure."
    Charles D.
  • "Dr. Helfner and staff are the very best!!!"
    Alex T.
  • "It was my first visit and I'm really impressed by the professionalism and compassion of everyone in the office. I felt very comfortable from time that I walked in. I'm very happy that I found this practice."
    Cinla A.
  • "A great experience"
    Michael T.
  • "This practice is remarkable!! As always, my experience with Dr. Helfner was amazing. She and her staff are by far, THE most professional, knowledgeable, caring and friendly group of people I have met in any organization. After many years of experience with my entire family, the level of excellence has been 100% consistent!"
    Sherri F.
  • "Excellent Doctors including administrative staff. Mindy at front desk went out of her way to help me find a Surgeon for root canal work during this holiday season when most of the offices are closed."
    Iqbal S.
  • "Very pleasant office to visit no pain and all the girls are good looking :)"
    Michael D.
  • "Always the best experience. Sarah is an amazing hygienist and is always so gentle and thorough with my cleaning. Dr. Helfner is the most amazing and caring dentist and really takes her time with her exam and speaking to you. The staff is always so friendly and beyond accommodating. Best practice!"
  • "Bonnie Helfner is the gold standard of dentists. Dentistry is truly a labor of love for this very talented and knowledgeable professional. Dr. Helfner exudes great skill and compassion every time she has a patient in her capable hands. I have been an unusual and problematic dental case my whole life; the problems that Dr. Helfner has solved for me have been nothing short of amazing ! Solving challenges do not daunt her: it energizes her. I always appreciate her consistent patience, perseverance, and consummate professionalism. I am so lucky to be one of her many patients"
    Robyn C.
  • "Its always a pleasure coming to Dr. Helfners office. Very friendly employees, always meet you with a smile"
  • "They are all very professional and friendly at the same time!!! Great experience!!"
    Amanda L.
  • "From the moment I walked in my experience was nothing short of amazing. Everyone was extremely welcoming, friendly and helpful. Lindsey was patient, understanding and very thorough. Dr. Curro did an excellent job at explaining what was going on and what to expect moving forward. Mindy was kind and patient while we scheduled future appointments and reviewing costs for each of those appointments. For the first time in almost 30 years I am truly happy with my dentist and I have already recommended
    them to friends and family. Thank you all so much!!"
    Maria F.
  • "Very patient centric dentist office. So pleasant and friendly."
    Steven R.
  • "Always a fun visit at this office! We love the entire staff, new additions included."
  • "Very nice"
  • "Excellent service and staff !"
  • "Everything was perfect"
    Douglas D.
  • "Professional, courteous service in a surgically clean environment takes the fear out of the dental visit!"
  • "It was our first time at the office my wife and myself were treated very courteous, From what we saw we loved our visit They were extremely professional and thorough Thank you"
    Elizabeth L.
  • "Professional and caring staff."
    Isabel L.
  • "Friendly office staff and competent dentists"
  • "Lindsay the hygienist is amazing along with all of the desk staff and dentists, always a perfect experience here!"
    Abigail C.
  • "Concerned thoughtful-spoke to me and advise me in the
    different directions I could undertake"
    Joan F.
  • "Sara was excellent. I had a lot of anxiety and she was able to make me feel relaxed and comfortable. The staff was great and the dentist and Sara were both very informative"
  • "Very professional team with great hospitality"
    Kenneth A.
  • "Lindsay performed a thorough cleaning. She is very personable. Dr. Helfner entered to provide an exam. The care given in this practice is quite evident."
    Mariette F.
  • "Bonnie Is so professional and very friendly. She takes the time needed with patience. She did not rush me out and explain throughly my treatment options."
    Daisy G
  • "Everyone is every kind and and I always feel like I was the only patient there"
    Sandra M.
  • "Very professional and everyone was extremely nice."
  • "The entire staff was so friendly and helpful during my visit. I had a wonderful cleaning and checkup. I highly recommend this practice."
    Debra L.
  • "I can't say enough nice things about everyone in the office. The whole staff is so professional, friendly, and welcoming! I am comfortable in the dentist's chair, but if you are someone that gets nervous, I recommend you get to know this office. There are TV's (with the option for headphones) in the rooms if you need a distraction and all the dentists, hygienists, and assistants will talk you through everything. Sarah performed my cleaning and she was more informative than some dentist I have met in the past."
    David L.
  • "My wife, several of my colleagues and I all receive care from Dr. Helfner and her entire operation. We are all very pleased and impressed with the professional skill and personal character of Dr. Helfner and all of the people she chooses to work with. I have experience with dental practices in several states and Dr. Helfner is special. It is very difficult to strike a work / life balance that allows a dental team to be at their best at all times, but Dr. Helfer's practice is the paradigm for professional effectiveness combined with concern for the individual."
  • "it was perfect"
    Meghna V.
  • "Very nice staff, made me feel comfortable and thorough explanation was provided. Took their time"
    Benjamin B.
  • "Great staff and clean modern office."
  • "Totally made my visit easy and carefree!"
    Adam A.
  • "Best dental office ever. Drs & staff are professional, caring and great at what they do."
    Diane E.
  • "Very clean, organized office."
  • "Warm, caring, and extremely professional office !"
    Dale M.
  • "Best dentist. Best staff."
  • "The care and concern I received was outstanding. From the moment I entered the office, till I left, I felt right at home. My cleaning by Lindsay was excellent, and my exam by Dr. Helfner was very thorough, as well as gentle and caring."
  • "I recommend Dr. Helfner all the time. I am the only person I know who actually likes going to the dentist. The entire group is cheerful, accommodating, professional and knowledgeable. It is always a pleasant experience . . . and the child in me loves getting a dental goodie bag at the end of my check ups. (I would still be a patient without the goodie bag, but a bit sad.) LOL"
    Patricia M.
  • "Outstanding. Dr. Helfner is a great dentist that I highly recommend."
  • "Overall excellent experience every time. They are always very efficient, timely, friendly, professional and to top it off the facility is clean and pretty."
    Deanna O.
  • "The staff and the doctor are very nice and friendly"
    Melissa T.

Our Location

Find us on the map

Hours of Operation

Our Regular Schedule


9:30 am-7:00 pm


9:00 am-6:30 pm


9:30 am-6:30 pm


9:30 am-7:00 pm


8:30 am-2:00 pm


8:30 am-2:00 pm