Welcome to
Our Practice

Get to know our practice and our family of Doctors & staff

Settle into the soothing atmosphere at Gentle Dental

When you’re a patient of our dental office in Queens, an appointment with us is an escape from the pressure and stress of your daily life. You’ll feel relaxed and be treated with the attention and compassion you deserve. Our beautifully appointed office has an extensive range of amenities, and a warm, friendly staff who provide dental care with a chair-side manner that is simply unsurpassed.

Gentle Dental offers the most advanced technology in modern dentistry.

The foundation of our practice is our staff, who hold themselves to the highest standards of professionalism and courtesy, and who will make you feel like part of our extended family. As professionals, we are committed to staying abreast of the latest methods, techniques and technological advancements in dentistry. And we’ll always ensure that we explain any of our procedures, no matter how complex, so you have a clear understanding. We always want you to have the knowledge you need to make informed, confident decisions to do with any aspect of your oral health.

Your Initial Visit

Cosmetic, General, or Restorative Dentistry?

Like our staff, our office is also warm and inviting. Indeed, we distinguish our practice by rejecting the cold, clinical atmosphere of the traditional dental office in favor of a sophisticated, modern and comfortable setting.

We also respect your time, and we’ll make sure you are seen promptly. If you arrive early, rest easy. Our office is a perfect spot to take a moment to yourself. There’s a selection of reading material, free Wi-Fi, and if you’d like a cup of tea while you wait, let us know and we’ll happily brew one for you. The calming atmosphere has been designed to make your time in our care an escape from the stresses of your daily life.

Consultation and Treatment Planning

Your first visit will be with either Dr. Marianna Knop, Dr. Andrey Ilyabayev, or Dr. Greg Gelfand. But before your examination, we’ll get to know each other, in particular, your health history. Knowing whether you have allergies, sensitivity to anesthetics, or take long-term medications allows us to better personalize your treatment. Then, in addition to examining your teeth, gums, jaw alignment and soft tissues, we’ll take X-rays to find any areas of infection that need treatment, check your blood pressure, and perform an oral cancer analysis. We perform a comprehensive assessment of your oral health.

While our office has been appointed with the comfort of our patients in mind, it also features some of the most advanced diagnostic equipment available in general and restorative dentistry today. From digital, low-radiation x-rays to laser dentistry, Gentle Dental offers the most advanced technology in modern dentistry.

Dr. Andrey Ilyabayev

Dr. Ilyabayev’s mother, father and both brothers are dentists. But even with the benefits of growing up around dentists, actually becoming one still requires years of education and the passion to become one.

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Dr. Greg Gelfand

Dr. Gelfand is the general dentist at Gentle Dental, and like Dr. Ilyabayev, he too has grown up around the profession as his mother is also a dentist.

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Dr. Marianna Knop

Healing people is a quality Dr. Knop exhibited early on. As a young girl she pretended to be a doctor with her dolls, and even nursed injured animals back to health, and then as a teenager she learned how to administer first aid.

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Dr. Roman Kogen

Dr. Kogen always had a passion for medicine. He is sharp-minded, goal oriented, and absolutely dedicated to each of his patients.

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Contact Us

35-30 Francis Lewis Blvd.

Bayside, NY 11358



[email protected]

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