Dt. Sinem Önder was born in Çorlu. She successfully graduated from Medipol University, Faculty of Dentistry in 2016. She started his doctorate at Altınbaş University, Faculty of Dentistry, Department of Orthodontics in 2017. In 2021, she is still doing her PhD. She worked in various dental clinics in Tekirdağ & İstanbul, focusing his practice mostly on Orthodontics. Dt Sinem Önder is also a member of the Turkish Dental Association (TDB), the the Turkish Orthodontics Association (TOD).She offers her services at DentGroup Yenibosna Clinic.