Sachau Dentistry in Spearfish SD

Established in 1978

Local, Friendly Smiles You can Trust!

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Gentle Dental Care for Families in Spearfish

Whether you have a toothache, would like to see a dental hygienist, or desire comprehensive restoration, our skilled professional staff will care for you. Dr. Sachau is a Spearfish dentist who believes that the very best and least expensive dental care is to preserve your natural teeth for your lifetime. We also provide excellent quality restorative dentistry of all types using sensible and practical treatment plans.


Dental Services

  • Prevention

  • Cosmetics

  • Restoration

  • Headaches


Accepted Dental Insurance

  • We accept almost all commercial insurance carriers (except Medicaid)

  • Payment plan financing options are also available

  • All services and costs are explained up front so you won't have any surprises and can confidently proceed with the care you need


Spearfish Hours and Location

Open Mon, Tues, Thurs, & Friday 8 am to 5 pm
(Closed from 1-2pm for Lunch)

1440 North Main Street, Spearfish, SD 557783

Spearfish Family Dentist - G Randy Sachau Dentistry

Our Spearfish dental staff is here to help you!

  • Our staff is one of our most valuable assets with over 100 years of combined experience in the dental profession. We have carefully chosen each one to keep the culture of our office friendly, kind, and caring. We strive to make you comfortable and have your needs met to have the best experience possible.

  • They not only provide the care you need, but educate you on being your own advocate for your teeth and give you choices so you may select what is best for you. We take a conservative approach to dentistry. We want you to have your natural teeth for a lifetime with the least intervention from us.

  • Randy Sachau DDS, has been in practice for 40 years! Having begun his dental practice here in 1978, he is one of the most experienced dentists in the Black Hills. He is focused on providing preventive focused dentistry to families plus he has a special interest in relief of headache and neck pain. We incorporate the latest digital radiography equipment as well as other new technology to assure the highest quality of care available.


What can we do for you?

We want to go beyond your expectations!

We want to open your horizons to make you confident with your smile. Please ask questions and tell us what you desire for your smile.

Feel free to ask about:

  • Composite Veneers

  • Porcelain Veneers

  • Implants

  • Whitening

  • Crown/bridge

  • Splints (Mouthguard)

  • Partial Dentures

  • Esthetic fillings

Patient Resources

Be the best advocate for yourself

We have our own little mascot, ‘Wilfred the Wisdom Tooth.’ He makes appearances on Facebook to answer questions that patients may otherwise not have asked us.


Contact us today to schedule your dental appointment in Spearfish!