Meet the Doctors
Timothy D. Aiossa, DDS
Quote About Dentistry: Every tooth in a man’s head is more valuable than a diamond. – Miguel de Cervantes
Your Mission Statement of Dentistry: My goal is to educate one person per day on the benefits and importance of dental health.
Education: Loyola Dental School DDS,
Loyola Dental School – Specialist in Periodontics
University of Illinois B.S. Biology
Continuing Education Courses/Professional Memberships: American Dental Society, Chicago Dental Society, American Academy of Periodontology
Hobbies: Boating on both Lake Michigan and Gulf Coast of Florida. Home improvement projects, especially landscaping.
Georgia Helen Kalkanis, DDS
Quote About Dentistry: Overall health begins and ends in the mouth.
Your Mission Statement of Dentistry: To try to have patients understand the importance of oral health.
Education: University of Detroit Mercy School of Dentistry
Continuing Education Courses/Professional Memberships: Hellenic American Dental Society
Hobbies: Reading and travel
Steven P. Theodosis, DDS
Quote About Dentistry: Most full-filling and satisfying career.
Your Mission Statement of Dentistry: Help our patients maintain healthy smiles by providing the most complete quality dental care possible.
Education: Loyola University School of Dentistry 1991
Continuing Education Courses & Professional Memberships: Dr. Theodosis has passed an Executive Board with the Academy of General Dentistry that allows multiple courses in dentistry. He is also Invisalign Certified.
Hobbies: Enjoys skiing
Matthew Zielinski, DDS
Education: Bowling Green State University, Bachelor's Degree in Biology and Minor in Chemistry 2011;
University of Detroit Mercy School of Dentistry 2016;
Loyola University Medical Center, General Practice Residency 2017
Continuing Education Courses/Professional Memberships: ADA, CDS, Spear Faculty Club Member, Spear Study Club Participant (2 Study Clubs), Invisalign Certified, Associate Professor of Surgery at Loyola University Medical Center
Hobbies: Family, traveling, hockey and golf
Fred J. de la Cotera, DDS
Specialist in Oral & Maxillofacial Surgery
Quote About Dentistry: My desire is to provide surgical care as comfortable as possible.
Your Mission Statement of Dentistry: To maintain comfort and treat patients as I would my own family.
Education: Loyola University Dental School 1986;
Loyola University Medical Center, Oral & Maxillofacial Surgery 1991
Continuing Education Courses/Professional Memberships: American Dental Association, IL State Dental Association, Chicago Dental Society, IL Society of Oral & Maxillofacial Surgeons, Chicago Society of Oral & Maxillofacial Surgeons
Hobbies: Enjoy bike riding, outdoor activities
Ellena Michelle Kontos Vranas DDS, FAGD
Quote About Dentistry: The art and science of dentistry, along with developing life-long relationships with my patients has made this such a wonderful career choice for myself.
Your Mission Statement of Dentistry: My goal is to educate our patients on the best oral health care possible, which then leads to an investment in total health and wellbeing.
Education: Purdue University, Bachelor of Science in Biology 1982;
Northwestern University Dental School, Doctor of Dental Surgery 1986;
Hines Veterans Administration Hospital, Certificate of General Dental Residency 1987;
Northwestern Memorial Hospital, Fellowship in Hospital Dentistry 1990;
Fellowship in the Academy of General Dentistry 1997
Continuing Education Courses/Professional Memberships: Member of American Dental Association, Illinois State Dental Society, Fox River Valley Dental Society (also on Board of Directors), Chicago Dental Society, Hellenic American Dental Society, Academy of General Dentistry, Invisalign Certified.
Lifestyle and Hobbies: My husband Nicholas and I are the proud parents of Evanthia (soon to be a 3rd generation dentist) and Arianna (our adventurous world traveler and social media advertising/marketing senior at Loyola University). A devout Greek Orthodox Christian, my hobbies/interests include Greek folk dance, power-walking, biking, gardening, tennis, opera, and exploring the world.
Thomas V. Bordignon, D.D.S.
Dr. Bordignon earned his B.S. in Biology in 1987 and then his D.D.S in 1991, both from Loyola University of Chicago. In 1994 he completed an Endosseous Implant Externship at Midwest Implant Institute and an I.V. Sedation Externship at Miami Valley. From 1992 to 2008, he acted as Mediator of the Dental Oncology Program at Midwestern Regional Medical Center, a Cancer Treatment Center of America, and remains on staff today. Dr. Bordignon began his private practice in 1997 and maintains professional memberships in the American Dental Association, the Chicago Dental Society, the Illinois State Dental Society, and the American Society of Dental Anesthesia.
At the end of the day, Dr. Bordignon loves making the dental experience as comfortable as possible and finds it rewarding to hear a patient saying, “That was great, doc. Much easier than expected.” Dr. Bordignon and his wife, Josie, have two children. In his spare time, he enjoys boating, water skiing, snow skiing, watching his children’s sporting events, working out, and playing jazz piano.