(718) 701-1225


Experience the confidence
a sparking smile can give


Choose from a wide range of dental make over options...

Botox &
Dermal Fillers

Reverse the Signs of Aging!

Mamut Dentistry

Dr. Jovanka Zivkovic would like to welcome you to learn more about Mamut Dentistry and offer you New York's Best Dental Experience. At Mamut Dentistry, we believe that it’s our focus on the details that set us apart from other dental care providers. Every day we strive to put our patients first by starting and ending our appointments on time. We partner with you to provide superior general dentistry, cosmetic dentistry, and implant dentistry for the entire family. We proudly work to maintain a clean, relaxing, and beautiful environment. In our dental office, outstanding dentistry means treating you like family.

Whether you need veneers, Invisalign clear braces, tooth-colored fillings, dental implants, laser teeth whitening, TMJ therapy, or a quick checkup and cleaning, our team will combine many years of experience  and a commitment to patient comfort to create the smile you have always wanted.

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Our Services

Botox and Fillers

Wrinkles happen! As we age, the increase in muscle tone along with a decrease in collagen result in wrinkles. The most popular way to fix this problem is by undergoing procedures like Botox and dermal filler injections to rejuvenate the face. Injections of Botox basically work to paralyze the facial muscles and decrease their muscle tone thus temporarily smoothing wrinkles. The procedure lasts between 15 to 30 minutes depending on the number of injection sites. The injection is made with a fine needle into the specific muscle with minor discomfort and no down time. Botox usually lasts between 3 to 6 months and full results are achieved between 7 to 14 days after injection. Botox is usually the primary step in a more youthful appearance, and deeper wrinkles may also need to be filled with dermal filler.

Our dermal filler of choice is Juvederm, this is a hyaluronic acid base and very similar to the substances found in your dermis or lowest layer of the of skin.The body naturally produces hyaluronic acid that helps to detain water at the point where the gel is injected into the skin. The gel acts as a soft buffer that keeps that skin lifted, thus, reducing the wrinkle, while the acid keeps the gel from evaporating out of the skin.  Juvederm is one of the most popular fillers used in the U.S. and results are often noticeable immediately after procedure. Its most commonly used to fill stubborn wrinkles, augment or plump lips, nose, jaw and other parts of the face.The dermal filler procedure takes anywhere between 15 to 60 minutes depending on the area and results can last 6 months to 1 year.

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Emergency Care

No Need to Wait!

Emergencies never happen when it’s convenient. That’s why Mamut Dentistry is available
when most offices are closed. We are open Sundays and Late Nights. We have emergency dental services that will offer the immediate relief you are looking for.


In pain and need care right away, come to see Dr. Zivkovic! The symptoms of toothache include sharp pain or dull pain in or around a tooth. The most common cause of a toothache is a dental cavity as a result of tooth decay or root canal.


For injury and immediate care come right in! If you have a laceration or a lost tooth, Mamut Dentistry can help right away. We can address trauma of the teeth and/or periodontium (gums, periodontal ligament, alveolar bone), and nearby soft tissues such as the lips, tongue, etc.

Veneers or Crowns

A fundamental difference between veneers and crowns is how much of the tooth they cover over. Veneers only cover a tooth’s front surface (the side that shows when the person smiles), where a crown usually encases a whole tooth. We will repair or replace the tooth no what the problem is and bring back your healthy smile!

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Pediatric Dentist

At Mamut Dentistry we love that we are able to help so many children experience superior dental care. We are able to offer a diverse variety of treatments to address all of your child’s dental needs no matter what age. It is our goal to set your child on the right track for excellent oral health. We pride ourselves on being warm and personable with even the smallest patients. We hope that your whole family can leave our office feeling healthier and more confident about your smile.

  • Routine Checkups
  • Dental Cleaning
  • Invisalign
  • Night Guard
  • Fluoride treatments and Sealants
  • Creating treatment plans to maintain or restore oral health
  • Ensuring the safe administration of anesthetics
  • Monitoring growth and development of the teeth and jaws
  • Performing surgical procedures on the teeth, bone and soft tissues of the oral cavity
  • Repairing or filing of decaying teeth
  • Fixing dental injuries, including fractured, displaced, and knocked out teeth

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If you have tried at home teeth strips or whitening toothpaste with feeble results, maybe it’s time to try a professional treatment. With Philips Zoom in office whitening, you can unlock a smile up to 8 shades whiter in just 45 minutes. A gel is applied to your teeth and then activated by LED laser light that accelerates the process. This is done in office with one or more sessions depending on desired result. When you choose Zoom, stronger whitening ingredients are used to safely complete your treatment. The results will be instantly visible with little to no sensitivity. No wonder millions of people have already trusted  ZOOM with whitening their smile. Satisfaction Guaranteed!

Is teeth whitening safe?

Yes, teeth whitening is safe if you follow each product’s guidelines carefully. Some whitening products can irritate gums, or leave you with sensitive teeth, so it’s suggested that you speak with a dental professional if you want to brighten your smile.

What causes teeth to be discolored?

There’s a range of reasons teeth become yellow. Genetics, your environment, even taking certain medication can all have an effect on the whiteness of your smile.
The most common reason is surface stains on your enamel. This is down to everyday food, drinks and lifestyle choices. Over time, these stains can work their way to the layer below enamel, known as dentin. When this becomes stained, the whole tooth looks darker because of the translucency of enamel.

How long do results last?

ZOOM whitening treatments are formulated to give you long-lasting results, but the results will vary depending on the type of whitening you opt for. Lifestyle choices, such as drinking drinks that stain teeth, will make them yellow again over time.

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Dr. Jovanka Zivkovic and her staff aspire to give their patients the best orthodontic care available. At Mamut Dentistry in Astoria New York we are highly trained and experienced, which is just the beginning of what our office has to offer.

We understand how important a straight, beautiful smile is, which is why we offer the following state-of-the-art appliances and revolutionary services:

  • Invisalign: Clear, plastic aligners that straighten your teeth without noticeable, bulky materials.
  • SureSmile: Digital treatment planning and wire customization, proven to finish treatment faster with precision results.
  • Self-Ligating Brackets: Low friction bracket system designed to reduce the number of office visits and discomfort associated with orthodontic tooth movement.

Not only do we provide cutting-edge procedures, we do it with a smile! We are committed to excellent customer service; we want you to have a pleasant experience and look forward to your next appointment.

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Oral surgery

Dental Implants

Mamut Dentistry offers a broad range of dental implant procedures that can replace one tooth or many teeth. Dr. Jovanka Zivkovic, has years of training and experience restoring missing teeth with dental implants. If you are interested in a long-term, cost-effective option for replacing your missing teeth, please contact us for more information.

Dental implants are the only tooth replacement option that prevents bone loss, preserves the health of your surrounding teeth, and provides you with a beautiful new smile. Dental implants are designed to work just like your natural teeth, with no removable parts. The materials used to support dental implants are permanent and stable, and with proper care, your replacement teeth can last a lifetime. No other tooth replacement option has such a high long-term success rate.

Wisdom Teeth Removal

Wisdom teeth are the third and final set of molars to grow in the mouth. When they do not grow in properly, wisdom teeth can cause some painful and potentially damaging symptoms. Having wisdom teeth removed before problems arise can help you avoid issues such as dental crowding and infections.

As an oral and maxillofacial surgeon, Dr. Jovanka Zivkovic is trained to extract wisdom teeth in one simple outpatient procedure. Most dental professionals recommend having your wisdom teeth evaluated during your mid to late teen years. If you or your child needs to have wisdom teeth removed, contact our office in Astoria New York, for more information.

Full-Arch Restoration

Full-arch restoration is a secure, permanent alternative to removable dentures that gives patients a functional new set of teeth. The unique design allows patients to eat the foods they love and smile with confidence. If you have many missing teeth, or you currently need dentures, you may be a candidate for this life-changing procedure.

Full-arch restoration is an attractive option because the new teeth are secured firmly inside the mouth with dental implants. Dr. Zivkovic can complete the entire restoration using as few as four implants, making this procedure extremely efficient and preventing the bone loss associated with missing teeth. If you are interested in learning more about full-arch restoration, contact our office in today.

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Root canals

Root canals are probably the most notorious procedure in dentistry and the most common procedure relating to endodontics. When a tooth becomes infected it is usually related to the nerves in the root of the tooth. The infected nerves needs to be removed. If left untreated an infection can turn into an abscess, which is a much more serious problem that includes bone loss in the jaw.

The area around the tooth is numbed with a local anesthetic to start the procedure. The dentist will then drill down into the tooth to create an opening into the canal. They will then be able to remove infected tissue and clean the canal. After the infection has been removed, the space is filled with a sealant called gutta percha. It is highly recommended that a tooth that has undergone a root canal is fitted with a crown. This will improve the appearance of the tooth, and will also make it much more likely for the root canal to be successful.

“Root canal” has become a scary term for dental patients to hear, but the benefits of the procedure and advances in dental technology have made it much less “scary”. Local anesthetics and proper pain medication allow the procedure to be performed with little to no pain in most cases. There may be some soreness following the procedure, but that is normal for most dental procedures. Over the counter, painkillers are usually enough to relieve any pain afterward, but your dentist may prescribe medication. The procedure will also relieve you from pain caused by the infection allowing you to enjoy all the foods you love without any pain from heat, cold, or biting too hard. If you are experiencing pain consult your dentist today.

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Dental implants are designed to provide a foundation for replacement teeth that look, feel, and function like natural teeth. The person who has lost teeth regains the ability to eat virtually anything and can smile with confidence, knowing that teeth appear natural and that facial contours will be preserved. The implants themselves are tiny titanium posts that are placed into the jawbone where teeth are missing. The bone bonds with the titanium, creating a strong foundation for artificial teeth.

Dental implants are changing the way people live! With them, people are rediscovering the comfort and confidence to eat, speak, laugh and enjoy life. If like many others, you feel implant dentistry is the choice for you, we ask that you undergo a dental/radiographic examination and health history. A radiographic exam is a type of x-ray that is done to image blood vessels in various parts of the body, to determine whether the vessels are diseased, narrowed, enlarged or blocked. During the consultation visit, your specific needs and considerations will be addressed by Dr. Zivkovic. Your questions and concerns are important to us and our team will work with you very closely to help make your procedure a success.

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Meet Our Doctors

Jovanka Zivkovic

Jovanka Zivkovic


After receiving her degree from the school of dental technicians in Belgrade with high honors, Dr. Zivkovic attended the school of dental medicine in Pánčevo, Serbia. As the summa cum laude of her class Dr. Zivkovic furthered her dental expertise and enhanced her skills with a postgraduate residency program at the national health center in Serbia. Dr. Zivkovic also received her MBA degree at Union University and continued her education in general dentistry in the Nederland’s. After arriving to the U.S., she then completed an advanced program at Columbia University in New York City and received training in implantology, endodontics, oral surgery, iv sedation and prosthodontics.

Dr. Zivkovic is very committed to delivering the most up-to-date treatment to all her patients and stays on the forefront of continuing education, new treatment modalities and technology. She has trained with some of the nation's most progressive dentists in smile design and functional occlusion as well as cosmetics orthodontics (Invisalign). She understands that each person has a unique personality and specific dental need and treats each patient as such. She appreciates every patient’s perspective and is the type of dentist that cherishes close and personal relationships with her clientele. For this reason, Dr. Zivkovic makes it her top priority to comfort her patients and put them at ease before beginning even the simplest procedure. Whether it be a reconstructive or cosmetic appointment she creates a relaxed atmosphere for the well being of all her patients.


Jovanka Zivkovic


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Why Choose Us

Dermal Fillers


10 Years of




Invisalign Premier Provider


Work with Most Insurance Plans


Flexible Payment Options Aetna Blue Cross Blue Shield Illinois Cigna Delta Guardian Metlife *PPO plans* Please call for any further assistance


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What Our Patients Say About Us

“This place is the best. Everybody is nice and professional. Dr. Jovanka is the best doctor I’ve ever been to.”

Rosa R. Long Island, NY

“Dr. Jovanka did a great job. My family and I are very content. See you guys soon!”

Leticia C. Astoria, NY

“I had an emergency appointment and Dr. Jovanka and his staff were friendly and courteous”

Michael N. New York

“Dr. Jovanka goes out of her way to make you feel better!”

Benjamin H. New York

“Just wanted to drop a line to say that I am absolutely loving my bridge. It is beautiful!! And so comfortable. Thank you for a job SUPERBLY done.”

Christopher M. Brooklyn

Contact Us

(718) 701-1225