The Story of Ogadent

In 1992, a young dental technician named Karen from St. Petersburg decided to see the world and simultaneously develop his professional skills. He got an opportunity to study in Helsinki. His girlfriend, Olga, came to visit six months later.

After Karen started his studies at the State Dental Technician Institute in 1992, Olga surprisingly found herself interested in teeth as well. Initially, she pursued a dental hygienist’s training at Helsinki’s IV Health Care Institute but realized during her studies that she wanted more than to be a dental hygienist – she wanted to become a dentist.

The year after Karen graduated, Olga and Karen had twins. At this time, an exciting idea was born. Knowing Olga’s dream of a career in dentistry, Karen suggested that she should study dental medicine.

After some hesitation, Olga said, “I’ll try once.”

Small children and her then-limited language skills did not prevent Olga from getting into the University of Helsinki to study dentistry. The children also did not stop Karen from becoming a top-level dental technician.

This was the beginning of it all. After years of experience, the dental clinic Ogadent was founded.

Today, the family’s twins are involved in the family business, Ogadent. We like to think that Ogadent combines the values and strengths of our family members. Therefore, Ogadent is a company that combines both a modern operational and thinking approach and the skills learned through life experience.

Contact Information

Do you have any questions?


Olga Cassén, Dental Hygienist

I graduated as a dental hygienist from Helsinki Metropolia University of Applied Sciences in 2011. In addition to Finnish, I serve patients in English and Russian. My areas of expertise are treating patients with dental fear and teeth whitening.

Antti Viitikko, Specialist in Oral and Maxillofacial Surgery

I graduated as a Licentiate in Dental Medicine from the University of Helsinki in 2007 and as a specialist in oral and maxillofacial surgery from the University of Oulu in 2015. In the private sector, my primary tasks include complex tooth extractions, implant treatments, as well as the diagnosis and treatment of various oral mucosal changes. A crucial aspect of oral and maxillofacial surgery is effective anesthesia, making specialists in my field experts in anesthesia. The actual procedure on the teeth is then completely painless. Anesthesia itself is not usually 100% pain-free, but the brief, minor sting should not cause sleepless nights.

Tom Lindholm, Specialist in Oral and Maxillofacial Surgery

Specialist in Oral and Maxillofacial Surgery, HLT, Associate Professor.

Olga Svid, Dentist

I graduated as a Licentiate in Dental Medicine from the University of Helsinki in 2007. During my studies, I was particularly interested in prosthetic treatment, occlusion rehabilitation, and aesthetic dentistry, in which I have also undergone further training after my studies. I treat patients of all ages and have extensive experience in treating patients with dental fear.

Karen Oganessian, Dental Technician

I graduated as a dental technician in 1990 from the St. Petersburg Dental Technician School and as a dental laboratory technician in 1994 from the State Dental Technician Institute in Helsinki. I take joy in creating happy and beautiful smiles for my patients/clients with my own hands.

Riikka Lohimäki, Dental Hygienist

I graduated as a dental hygienist in 2017 from Helsinki Metropolia. I work as a dental hygienist and dental nurse at Ogadent. Welcome to the clinic!

Juha Hämäläinen, Dentist

I graduated as a Licentiate of Dental Medicine from the University of Helsinki in 2020, and even after that, I have actively continued my education on a regular basis. I offer high-quality and comprehensive dental care for clients of all ages. In my treatment approach, I am calm and meticulous. I make sure to take into account the wishes of the client and clearly explain what is being done and why at each step. Providing a friendly and empathetic encounter with clients is a matter of honor for me.

In addition to basic dental care, I also perform veneers, ceramic crowns, and fillings. I also do Invisalign aligner treatments. You are warmly welcome to my practice!

Go to the appointment calendar

Book an appointment from the appointment calendar.