Born in Sakarya, Dt. Belgizar Onbaşıoğlu completed her primary, secondary, and high school education in Sakarya. She graduated with high honors from Bezmialem Vakıf University’s Faculty of Dentistry.

Passionate about professional development, Dt. Onbaşıoğlu has participated in numerous training programs, certification courses, and congresses. Her expertise includes digital smile design, zirconium crowns, computer-aided dentistry, inlay-onlay treatments, root canal therapy, and dental photography.

Since 2023, she has been serving patients at DentX Başakşehir Dental Clinic. She is also a member of the Turkish Dental Association (TDB) and the Turkish Academy of Esthetic Dentistry (EDAD).