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Welcome to Our Practice

We welcome you to our website! Our philosophy is to provide treatment to the whole person - with a special focus on how your teeth and gums relate to your total body health. We want you to be confident that your smile achieves your goals for comfort, function and appearance. We're here to make that happen.

We also understand that choosing a dentist is an important decision. After all, your smile is your greatest asset and says a lot about your overall health. From the moment you walk in the door, you'll be welcomed by a caring staff in a relaxed, stress-free environment where the whole family can feel at ease.

Our practice offers a full range of general & cosmetic dental treatments at our office to help you achieve your perfect smile, such as teeth whitening, crowns, preventive care or implants. We utilize the latest in dental technology and techniques in order to offer you the best preventive care and treatment available in Sunnyvale.

To learn more about our comprehensive service offering, talented Sunnyvale dentists and office procedures, take a few moments to look over the informative pages on our website. For additional information, you can always contact our office by calling or stopping in.

Relax with confidence at our office. We're your neighbors and we're here to help you maximize the health of your smile.


What Our Clients Say About Us

  • "Dr. Longakit is amazing and for the first time In my life i find going to the dentist enjoyable. Dr. Longakit is so gentle and nice it really is a good experience!"
    Gloria M.
  • "The staffs are amazing and treat me like a family every time I go there. I would recommend Dr. Marna to everyone who needs to go see the dentist and not sure who to visit"
    Prabesh S.
  • "Doctor Longakit has been my dentist for many many years now. She is also the dentist of husband. She is very good and i am very happy and pleased with her service."
    Michelle L.
  • "The staff is awesome, friendly, and they are great with children. The office looks great and clean."
    Tony G.
  • "Dr Longakit is very friendly and knowledgeable. I got several fillings here and the experience was more pleasant than I'm accustomed to with other dentists."
    John G.
  • "Dr. Longakit and her staff are amazing! Dr. Longakit is the ONLY one I trust to take care of MY PARENTS. Thank you for being so kind and gentle. They love you!!"
    Rachel B.
  • "Both myself and husband had a great experience with Olive Tree Dental. The people there are nice, prompt and have good technique ..."
    Joey F.
  • "I am very grateful to have found such a professional and caring dentist. Dr. Longakit is a an excellent dentist and I would definitely recommend her."
    Paulina S.
  • "I've been going to Olive Tree dental for years and I love them! they really cares about the patients and take the time to know us, my kids are crazy about her"
    Mariana F.
  • "It's so good. My daughter likes dentist without any fear. She's so nice and funny. And staff is also very kind. Highly recommended"
    Eunjung Y.
  • "I have always found that Dr. Longakit gives excellent care and have always been greatly satisfied after my visits. I would recommend her to anyone"
    Philip G.

Meet the Doctor

Learn Who We Are

  • Marna Mae Longakit

    Marna Mae T. Longakit, DDS, is a board-certified general and cosmetic dentist at Olive Tree Dental in the Bay Area community of Sunnyvale, California. She is highly experienced in all aspects of dentistry, including root canal therapy and other endodontic treatments, dental crowns and bridges, veneers, Invisalign® and ClearCorrect® aligners, and periodontal disease treatments.

    Dr. Longakit received her Bachelor of Science in Preparatory Dentistry at the Immaculate Conception College in Davao City, Philippines before earning her doctorate in dentistry at Mindanao Medical Foundation College in Davao, Philippines. She then moved to California to pursue her dental license, continuing her training at various Bay Area dental practices.

    While Dr. Longakit has extensive experience in many dental treatments, her area of expertise is periodontal care, particularly the prevention and treatment of gum disease and cosmetic gum-line reshaping. Committed to providing exceptional and individualized dental care, Dr. Longakit constantly attends continuing education courses to stay up to date with the latest advancements in dental techniques and technology. 

    Her office is equipped with state-of-the-art equipment like digital X-ray machines, an intraoral camera, panorex imaging, electric handpieces, and rotary endodontics.

    In addition to her training and experience, Dr. Longakit is a member of the American Dental Association, California Dental Association, Mid-Peninsula Dental Society, Better Business Bureau, and Mountain View Chamber of Commerce.

Contact Us

Our Location

Find us on the map

Hours of Operation

Our Regular Schedule




9:00 am-4:00 pm

Lunch: 12:00 pm-1:00 pm


9:00 am-4:00 pm

Lunch: 12:00 pm-1:00 pm


9:00 am-4:00 pm

Lunch: 12:00 pm-1:00 pm


9:00 am-4:00 pm

Lunch: 12:00 pm-1:00 pm