Dr. Debra M. Thorsheim

Home Town: Dr. Thorsheim has lived in Des Moines for 30+ years. She is originally from South Dakota, but has lived in Iowa most of her life and considers Des Moines home. She grew up and went to school in Swea City and Rock Rapids, Iowa.

Education: Dr. Thorsheim received her undergrad degree in Dental Hygiene from the University of South Dakota in Vermillion, South Dakota. She worked as a dental hygienist for a general dentist for one year and then for a periodontal specialty practice for two years. While working as a periodontal hygienist (specializing in treatment of gum disease), Dr. Thorsheim decided to further her career in dentistry and go on to become a dentist. She attended the University of Iowa Dental School in Iowa City, Iowa, and graduated in 1984. When she graduated she worked with a general dentist for four years and then ventured out and started her own practice in 1988. In 1995 she brought in her partner, Dr. Greg Ceraso. They have practiced together for 18 years.

Professional History: Dr. Thorsheim has always been interested in comprehensive, full mouth reconstructive and cosmetic dentistry. She loves to be creative and artistic and wants to give patients optimum dental health and optimum esthetics at the same time. She has studied extensively in these areas of interest. Her teachers and mentors have been: Dr. Peter Dawson—a world renowned leader in comprehensive and reconstructive dentistry with an emphasis on the balance of the bite and the joints. Dr. Thorsheim completed all courses at his institute in St. Petersburg, Florida. Dr. Mark Pieper—leading teacher in the field of TMJ—balance of the joint and the bite—completed all of his courses. Dr. Frank Spear—completed all the courses at his institute in Seattle, Washington—emphasis on esthetics, function, and reconstruction. Dr. John Kois—the leading instructor and institute of science based dentistry, state of the art dentistry. Dr. Thorsheim is a graduate of the institute and continues to study with Dr. Kois and those associated with his institute.

Associations: Member of the ADA—American Dental Association, the AGH—Academy of General Dentistry, the AACD—American Academy of Cosmetic Dentists, the AES—American Equilibration Society, and the IDA—Iowa Dental Association

Awards: As a senior in dental school, Dr. Thorsheim was awarded the Clinician of the Year Award which is presented to the senior with the most outstanding clinical skills and the most likely to succeed in dental practice—she was the first woman to get this award and there were 100 students in her class. Dr. Thorsheim was honored to be one of the 15 dentists in the country to be chosen to be a Dawson Center Faculty Member in 2006 and 2007.

Family: Dr. Thorsheim has two beautiful and successful daughters. They graduated with degrees in finance from the University of Iowa. They both have landed great jobs and are very busy pursuing their careers in the business world.

Hobbies: Dr. Thorsheim is an avid cyclist and hiker. She loves to vacation where she can cycle or hike through the world’s beautiful landscapes. Her top priority on her bucket list is to travel and see as much of the world as possible. One of her passions is photography—so a camera is always part of her gear when traveling.

Dr. Thorsheim loves to apply her creative and artistic skills to the work she does for patients. She dedicates herself to helping patients achieve optimum oral health—and at the same time make the world a better place one smile at a time.

Dr. Gregory F. Ceraso

Education and Experience: Dr. Ceraso graduated from the University of Pittsburgh in 1974 with a Bachelor of Science Degree in Biology. In 1978, he graduated from the University of Pittsburgh School of Dental Medicine and practiced general dentistry in Leechburg, Pennsylvania for the next 17 years. During that time he also practiced as a staff member at The Central Medical Hospital Facial Pain Center in Pittsburgh, Pennsylvania for 10 years performing extensive dental reconstruction of accident victims, cancer patients, and other facial pain patients. Dr. Ceraso also held a one-year part-time teaching position at the General Practice Residency at The Western Pennsylvania Hospital in Pennsylvania until relocating to Iowa in 1995.

Professional Affiliations: Dr. Ceraso is a member of the American Dental Association, The Academy of General Dentistry, where he is currently qualified for the fellowship exam, The International Congress of Oral Implantologists, and the American Academy of Cosmetic Dentistry, the Academy of Osseointengration, The American Equilibration Society, and The American Academy of Dental Sleep Medicine. Dr. Ceraso attended and graduated from the Kois Center, where he has received extensive post-graduate training in treatment planning, implants, periodontics, removable prosthetics, and occlusion.

Professional Profile: In addition to the staff position at Central Medical Hospital, Dr. Ceraso also held a staff position at Allegheny Valley Hospital while in Pittsburgh, Pennsylvania. In addition to public seminars, he has lectured extensively to other dentists on temporomandibular joint therapy, dental implants, cosmetic dentistry, and all-porcelain CAD/CAM restorations.

Employment: Since 1995, Dr. Ceraso has been practicing general dentistry in West Des Moines, Iowa, where he has concentrated on cosmetic and reconstructive, periodontal, and implant dentistry.

Dr. Jill McDermott

Dr. Jill McDermott graduated with a bachelor’s degree from the University of Northern Iowa in 2008. She then went on to achieve her Doctor of Dental Surgery degree from University of Iowa School of Dentistry in 2013. She is a member of the American Dental Association, the Iowa Dental Association and the Academy of General Dentistry. Dr. McDermott went into dentistry because she had a great experience as a child with her hometown dentist and enjoys improving patients oral health and enhancing their smiles. Dr. McDermott’s patient philosophy is “patients first”. She treats all her patients as they are her own family members.  Jill loves to be active. She enjoys running, reading, and spending time with her family and friends.


At the West Des Moines dental practice of Thorsheim & Ceraso, we provide friendly, professional service for you and your family. We serve Des Moines, West Des Moines, Waukee, Norwalk, Clive, and all surrounding communities. For your general, cosmetic, restorative, and sedation dentistry needs, call us today to schedule your local dentist appointment.