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Business Details
33 Years
experience
Your Trusted Dentists in Kewaunee, WI
Letter Sperber Dentistry has been dedicated to providing personalized, gentle dental care to the Kewaunee community since 1993. Founded by Dr. Mark Letter and joined by Dr. Brian Sperber in 2013, our practice combines decades of experience with state-of-the-art technology to deliver exceptional clinical outcomes. We prioritize patient education, preventive care, and individualized treatment plans to foster lifelong oral health. Our team emphasizes a welcoming atmosphere, utilizing digital x-rays, laser dentistry, and chair-side monitors to enhance comfort and precision.

With a focus on building trust through transparency and compassionate service, we serve patients of all ages, including specialized care for children and restorative and cosmetic solutions for adults. Our commitment to continuing education ensures we remain at the forefront of dental advancements while maintaining a patient-centric approach.
Services
Preventative Dentistry Restorative Dentistry Cosmetic Dentistry Children's Dentistry Dental Implants
Details
  • Year established: 1993
Highlights and features
  • We have over 30 years of combined experience serving Kewaunee and surrounding areas.
  • Our team utilizes state-of-the-art dental technology for precise diagnostics and treatment.
  • We create personalized treatment plans tailored to each patient's unique needs.
  • Our practice offers comprehensive care, from pediatric dentistry to dental implants.
  • We prioritize patient education and preventive care to promote lifelong oral health.
What people say
Friendly team Personalized care Comfortable atmosphere Effective communication Successful treatments
Services
Preventative Dentistry
Regular cleanings, digital x-rays, and oral cancer screenings help maintain optimal oral health. Our team educates patients on proper hygiene practices and uses advanced technology for early detection of potential issues. Sealants and fluoride treatments protect against decay, ensuring long-term dental wellness for all ages.
Restorative Dentistry
We offer crowns, bridges, dentures, and root canals to restore damaged or missing teeth. Dental implants provide permanent solutions for tooth replacement, combining functionality with natural aesthetics. Our restorative services aim to rebuild smiles while preserving oral health and structural integrity.
Cosmetic Dentistry
Teeth whitening, veneers, and bonding improve the appearance of discolored or misshapen teeth. These treatments address aesthetic concerns while maintaining dental health, offering patients confidence-boosting results through minimally invasive procedures tailored to individual goals.
Children's Dentistry
Early dental visits, sealants, and fluoride treatments establish lifelong oral health habits. Our team creates positive experiences for children using gentle techniques and educational approaches. Nitrous oxide is available to ease anxiety during treatments for a stress-free visit.
Dental Implants
Implants provide durable, natural-looking replacements for missing teeth. They support bridges or dentures while preventing bone loss, offering both functional and aesthetic benefits. This solution integrates with existing teeth for seamless results.
People
Dr. Mark Letter
Dentist
Dr. Letter has served Kewaunee since 1993, emphasizing personalized care and continuing education. He graduated from Marquette University School of Dentistry and values building lifelong patient relationships through compassionate treatment.
Dr. Brian Sperber
Dentist
Dr. Sperber joined the practice in 2013 after graduating Magna Cum Laude from Marquette University. He focuses on combining advanced technology with patient-centered care, maintaining affiliations with professional dental associations.
Patti
Office Manager
Patti has managed operations since 1989, coordinating treatment plans and insurance. She prioritizes patient comfort and satisfaction, ensuring smooth administrative processes to enhance the overall dental experience.
Tracy
Dental Hygienist
Tracy has provided preventive care since 1992, specializing in cleanings and periodontal treatment. She emphasizes patient education and comfort, fostering stress-free visits through clear communication and personalized care.
Rachel
Dental Assistant
Rachel has assisted since 2001, supporting Drs. Letter and Sperber with gentle care. She focuses on patient comfort, using humor to ease anxiety while maintaining high standards of clinical support.
Questions
What dental services do you offer?
We provide preventative, restorative, cosmetic, and pediatric dentistry, including cleanings, implants, veneers, and children's care.
When should my child first visit the dentist?
The American Academy of Pediatric Dentistry recommends a visit by age 1 or six months after the first tooth erupts.
Do you handle dental emergencies?
We prioritize emergency cases during regular hours but do not offer after-hours emergency services.
How do I schedule an appointment?
Contact our office during business hours or request an appointment online through our website.
What technology do you use?
We utilize digital x-rays, laser dentistry, and chair-side monitors for precise diagnostics and efficient treatments.
Do you accept dental insurance?
We work with patients to process insurance claims and provide treatment cost estimates for financial planning.