New Patients

We care for the small details so you can enjoy a seamless experience.

Forms & Paperwork

Reduce your waiting time by filling out your forms before you visit.

Enjoy the convenience of filling out your new patient forms and paperwork before your visit.

Simply download your forms to get started!

Access your new patient forms:


We offer different payment options for our endodontic patients. We accept:

  • Cash

  • Money orders

  • Personal checks

  • Visa

  • Mastercard

  • Discover Card

  • CareCredit


Let us lend you a helping hand when filing your dental insurance. Here is how we can assist:

  • We are in-network with Delta Dental

  • We can file the necessary forms for you

  • We’ll gladly help you through the process

  • Answer all your questions at any time

Your Personalized Experience

Feel your anxiety melt away as you relax into your visit.

The front desk at Marshall T. Lavin DDS
Warm Welcome
From the moment you step into our office, you’ll be warmly welcomed by our kind and friendly team. You’ll feel relaxed as we create an experience catering to your individual needs.
Dr. Lavin holding a dental drill
Gentle Assessment
Dr. Lavin will conduct a thorough examination to assess the affected tooth and your oral health situation. With our advanced technology, he'll better understand the cause of the issue and prepare your personalized treatment plan.
Dr. Lavin handing a clipboard to his patient
Your Custom Options
At the end of his assessment, Dr. Lavin will explain his findings as he partners with you to care for your endodontic needs. During this time, he will take additional steps to ensure you fully understand his recommendations and feel comfortable with your treatment plan.
One of the treatment rooms at Marshall T. Lavin DDS
Comfortable Treatment
You may think root canals are the cause of your pain, but in reality, they are the source of your relief! As an expert, Dr. Lavin has the skills and technology to provide you with the most gentle and efficient care possible. Our goal is to put your mind at rest and show you the benefits of modern root canal therapy.

Today was by far my most enjoyable dental experience. Dr. Lavin and staff are truly magical to work with. If possible, I would give more than a 5-star review.

Justin (5-Star Google Review)

Saving Smiles Since 1998
We are the longest serving endodontist practice in South Dakota.
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Dr. Lavin uses a wide range of modern technology, including microscopes, a CBCT scanner, and computerized anesthesia.

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Our office conveniently opens at 6:30 am, from Monday to Thursday, so you can come and visit us before work!

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Meet Dr. Marshall Lavin, your caring and compassionate friend, who is ready to help you restore your smile and eliminate tooth pain.

Marshall T. Lavin DDS Logo
Contact Our Office Today
We are privileged to partner with dentists and serve patients in Sioux Falls, SD.