Welcome to Our Practice   

Dentists Topeka KS, Dr. Eric and Dr. Greg

AdAstra Family Dentistry - Dentist Topeka, KS

Drs. Greg Johnson and Eric Johnson have more than 53 years of experience serving the Topeka community.  AdAstra Family Dentistry team is committed to providing our patients with exceptional dental care and customer service in a professional and compassionate environment.  Our goal is to help you feel and look your best through excellent dental care. We enjoy providing preventive and comprehensive care for patients of all ages. 

AdAstra promises from the moment you walk through our door, you will experience a friendly and professional atmosphere.   We have a family oriented dental practice and strive to educate our patients on the importance of oral health.

Our family dental services include adult and children teeth cleaning, fillings, periodontal therapy, root canal treatments, single Crowns and BridgesDental Implants, Simple Teeth extractions, Full or Partial Dentures, Porcelain Veneers, Teeth Whitening services, and Sleep Apnea treatment.

Meet Our Doctors

Learn Who We Are

  • Dr. Greg Johnson
    Dentist Topeka, KS

    Dr. Greg Johnson has been providing exceptional dental care to the Topeka area since 1980. He believes that his patient-focused team of dental professionals provides each and every patient with compassion...

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  • Dr. Eric Johnson
    Dentist Topeka, KS

    Following in his father’s footsteps, Topeka native Dr. Eric Johnson has been practicing dentistry since his graduation from University of Missouri – Kansas City’s dental school in 2007.  He enjoys all aspects of general dentistry...

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What Our Patients Say About Us

    The staff was so kind and compassionate. Dr. Eric genuinely took the time to explain what I was experiencing and why, and made my visit really pleasant. I'm so grateful to the entire team for their patience, compassion, and grace as I am one of those very very fun patients who struggles with anxiety at the dentist.

    Chelsie Sanders via Google

    I have always been nervous about going to the dentist but Dr. (Eric) Johnson has been amazing about putting my nerves at ease. Telling me exactly what he is going to do before he does it and making sure it is quick and as painless as possible. I’ve also had occasion to see his father Dr. (Greg)Johnson for an emergency appointment when I had a tooth crack suddenly. He was able to get me right in and once again take great care with gentleness and ease. I can’t recommend them enough. I went from “I hate the dentist!” to “I love my dentist!”

    Monica Wells via Facebook

    Their hygienists have been there for years and are all great. Drs Johnson both care about their clients.

    Jr Munoz via Facebook

    The staff are really great and make you feel welcome! I have bad anxiety and one of the things that makes me super anxious is dentistry. Since Kaitlyn has been cleaning my teeth, I haven't had any anxiety at all.

    Kevin Owensby-Smith via Google

Featured Articles

Read about helpful topics

  • Bridges

    When you lose a tooth, it affects not just the appearance, but the function of your smile. It can be difficult to eat or speak naturally, extra stress is put on your remaining teeth, you’re at greater risk for developing gum disease, your remaining teeth can shift out of position causing bite problems, ...

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  • Orthodontic Retention

    Getting your braces off is definitely a cause for celebration. You can finally enjoy your new smile after all that work and effort! But getting your braces off isn’t the end of treatment. Once your braces come off, you will enter the retention period of treatment. During the retention period, you will ...

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  • Inlays and Onlays

    Inlays and onlays are indirect restorations used to repair molars and premolars damaged by decay or trauma. Inlays and onlays fit more securely and last longer than fillings, strengthen compromised teeth, and preserve more natural tooth structure than crowns. An inlay is used to restore the center of ...

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  • Dental Implants

    If you have recently dealt with an injury or disease that affected your oral health, there are options available to recover the smile you once had. You may even be able to achieve a better smile than the one you had. Dental implants make it possible to renew your smile if you have lost some teeth. There ...

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  • Tooth Decay Prevention

    What is tooth decay? Tooth decay begins with the Streptococcus mutans bacteria. These bacteria join with food particles and fluids in the mouth to create plaque, a constantly forming biofilm which sticks to the surface of tooth enamel. The bacteria in plaque convert the sugars in our foods into lactic ...

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  • Root Canal Treatment

    Every tooth has two sections: a crown, the visible part of the tooth above the gum line, and one or more roots, which anchor the teeth within the jaw. Each tooth has three basic layers: an outer layer of hard enamel (which protects the crown) or cementum (which covers the root), a middle layer of softer ...

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  • Fillings

    The bacteria in plaque produce acids that erode tooth enamel, eventually creating a hole, or cavity, in the tooth surface. Left untreated, this decay can spread to the interior of the tooth, and might lead to the need for a crown, a root canal, or even extraction. When caught early, your dentist can ...

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  • Veneers

    A dental veneer is a thin, durable porcelain shell that is custom-fabricated to cover the front of a tooth. Veneers can restore the appearance of teeth with chips, cracks, and stains, can close small gaps between the teeth, and can reshape misshapen or slightly misaligned teeth. Veneers are a popular ...

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  • Educational Videos

    Take a few minutes to watch our educational videos and learn more about different dental treatments and procedures. Video topics include general & cosmetic dentistry, Implants, oral health and hygiene, orthodontics and preventative dentistry. ...

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  • Laser Decay Diagnostics

    Using lasers, dentists can detect tooth decay that is not yet visible and would otherwise be undiagnosed using traditional methods. Laser cavity detection is based on the fact that healthy tooth structure reflects light, or “fluoresces,” differently than does decayed tooth structure. Teeth with decay ...

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Hours of Operation

Our Regular Schedule


7:30 am-4:30 pm


7:30 am-4:30 pm


7:30 am-4:30 pm


7:30 am-4:30 pm