Meet The Doctors

Richard Mantoan, DDS

A proud graduate of Northwestern University Dental School, Dr.Mantoan opened his Flossmoor office in 1985. Believing in helping the less fortunate, he organized a group of volunteer dentists to provide urgent dental care for area homeless persons and is a member of Donated Dental Services, an organization of dentists who provide free dental care for those in Chicagoland with financial need due to disabilities. Dr. Mantoan has kept up to date in all aspects of dentistry, including cosmetics, prevention, and practice management. He has held all officer positions in the South Suburban Branch of the Chicago Dental Society and served for three years on the Board of Directors of the Chicago Dental Society. Professional affiliations include the American Dental Association, Illinois State Dental Society, and Chicago Dental Society.

Very happily married with three children, Dr. Mantoan enjoys family travel, classical music, and working with people.

We are strong believers in keeping up with the times. New techniques and materials are developed regularly. This is why the practice of dentistry stays so exciting and enjoyable for us. Every year we attend a number of varied continuing education programs throughout the Chicagoland area. In addition, Dr. Mantoan has taken the following in-depth continuums:

  • University of Minnesota Postgraduate Program in Esthetic Dentistry Level 1
  • Dawson Center for Advanced Dental Study
  • Diagnosis and Treatment of Masticatory System Problems
  • Equilibration: Diagnosis and Treatment of Occlusal Problems
  • Hornbrook Group Center for Advanced Clinical Education
  • Functional Anterior Esthetic Program
  • Implant-Retained Overdentures

Armand DiBenedetto, DDS

Dr. Armand DiBenedetto, a graduate of the University of Illinois College of Dentistry, was born and raised in Oak Park, Illinois. In the time he has been associated with our practice, he has impressed us with his calm, caring demeanor and his clinical skills.

Dr. DiBenedetto gained valuable experience in general dentistry and oral surgery thanks to his work with the National Public Health service in non-profit clinics in Reno, Nevada, and in Chicago Heights, Illinois. Since then he has been in private practice in the Chicagoland area, gaining excellent experience in endodontic therapy, cosmetics, and general dentistry. In addition, Dr DiBenedetto has attended many hours of continuing education in dental implant placement and restoration.

In his free time, Dr. DiBenedetto enjoys film, live music, reading, travel, and skiing.

Zaid Atarchi, BDS, MSc, MS

Dr. Zaid Atarchi graduated in 2001, obtaining his Doctor of Dental Surgery degree from the College of Dentistry, Baghdad University. He was selected to complete a prosthodontics residency at the same school. This residency provided him with advanced training in restorative dentistry, he earned his Master’s Degree and Certificate in Prosthodontics in 2005. He held a faculty position as a full-time Clinical Lecturer at the College of Dentistry, Baghdad University. He spent several years in private practice and volunteering in community clinics, serving and educating oral health for people in need. Helping people and improving their smiles energizes him. He feels fortunate to be rewarded emotionally every day for what he does, who he helps, and who he gets to work with. His interest in education compelled him to pursue another specialty training program, he enrolled at Saint Louis University Center for Advanced Dental Education, where he earned his Master of Science in dentistry and Certificate in Periodontics in 2016.

Dr. Atarchi is an active member of American Dental Association, American Academy of Periodontology, Midwest Society of Periodontology and Chicago Dental Society.

Dr. Atarchi and his wife Israa are heavily involved with the raising of their four daughters. They all enjoy reading, travelling and numerous other outdoor activities.


Dr. Van graduated from Midwestern University-Illinois, where she obtained her Doctor of Dental Medicine and Master in Biomedical Sciences degrees. She was born in Denver, Colorado, but she now resides in Burbank, Illinois.

She chose a career in dentistry to help patients attain better dental health and overall health associated with their dental needs. She enjoys doing general dentistry and has a particularly strong interest in cosmetic dentistry. The bond and connection that Dr. Van gets to develop with each patient is truly rewarding, and she hopes to help all types of patients from every background. Dr. Van tries to make each dental appointment a positive one, and she strives to give each patient the best possible care.

In her free time, Dr. Van loves spending time with her family; traveling; painting; attending plays; and enjoying the outdoors by biking, hiking, working out, and nature watching. She also likes to give back to the community by volunteering her time to the underserved community around Illinois. In the past two years, she has also been on mission trips to the Dominican Republic to provide free dental care for patients that have limited access to dental care. She is excited to help patients get on the right track towards having a happier and healthier smile.

Meet Our Team

Check back soon to meet our incredible dental team!