Business Directory This directory lists businesses owned and operated by the families of Mercedes College, as well as our old scholars, suppliers and corporate supporters.

Address 3/F, 198 North Tce Adelaide SA 5000
Phone 08 8227 0336
Email info@onia.com.au
Website www.onia.com.au


At ONiA we are committed to providing the utmost care for our patients, creating beautiful smiles, maximising dental function and achieving the best results possible. Our specialist orthodontists are fully accredited specialists and treat our patients exclusively using the most advanced techniques available. We care for both adults and children as individuals and enjoy creating trusting relationships during the course of treatment and post treatment care.