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Meet Our Crew

We're more than just a dental practice - we're a tight-knit crew, dedicated to providing you and your family with stellar dental care. Our team, led by the exceptional Dr. Sako, is composed of skilled professionals who are passionate about oral health and patient comfort. So, buckle up and come meet the cosmic crew who are committed to making your experience at Cosmic Dental World out of this world!"

Dr. Sako

We're proud to introduce you to our founder and leading pediatric dentist, Dr. Hisako Seignemartin, fondly known as "Dr. Sako."

Dr. Sako graduated with highest honors from the University of Minnesota, then continued her dental education at the University of Southern California, where she received the Woman Student of the Class Award for her dedication to patient care. Her passion for treating children emerged during additional training in Hawaii for Advanced Education in General Dentistry through Lutheran Medical Center.

Dr. Sako is a board-certified pediatric dentist with over 15 years experience guiding children and families through their oral health journey.  She believes in being proactive with oral health early in life, and emphasizes a comfortable, personal experience to develop a positive attitude towards optimal dental health. She also has extensive experience in various sedation methods, including in-office sedation, nitrous oxide sedation and general anesthesia. Dr Sako currently has operating room privileges and staff at Connecticut Children's Medical Center, Yale Children's Hospital and Naugatuck Valley Surgery Center.

When not caring for her patients, Dr. Sako enjoys volunteering on mission trips, playing the cello as part of a church orchestra, and exploring different cities and countries with her husband, Joel, their children, and their pug. She appreciates the beauty of the four seasons in the Northeast region and looks forward to developing lasting relationships with children in the community.

Credentials and Accolades:

  • Advanced Education in Pediatric Dentistry

  • Advanced Education in General Dentistry

  • Board Certified Pediatric Dentist


The Crew

Sabrina | Practice Manager

Sabrina, a highly experienced and dedicated dental professional with over 23 years of expertise in the field. As both an office manager and dental assistant. Sabrina has acquired a wealth of knowledge and skills that make her an invaluable asset to our dental practice. Located in the heart of town, Sabrina is a proud resident of Berlin and deeply connected to the community. She is a loving parent to two children who attend Berlin public schools. When she is not providing exceptional care to our patients, she cherishes her time off, which she spends creating memories with her family.

At Cosmic Dental World

It's more than just a dental practice; it's a community where we treat our patients as we would our own children. We're proud to offer the most modern equipment and methods available, including over-chair TV screens in our treatment rooms where kids can watch their favorite shows. Our goal is to make each dental visit a positive, empowering experience.

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