What is a Periodontist?

Periodontics is a specialty of dentistry that focuses on the health of the supporting structures of your teeth. A periodontist has completed an additional three years of specialty training beyond the four years required for general dentistry. During this time they are trained in preventing, diagnosing and treating gum disease. Periodontists specialize in placing dental implants and they are also trained in performing cosmetic periodontal procedures such as crown lengthening surgery and gum disease treatment.


Dr. Dorion, Periodontist

Craig Dorion, DDS, MPH

Dr. Dorion is a native of Massachusetts and graduated from The University of North Carolina at Chapel Hill (UNC) in 2002 with a Bachelors of Science degree in Biology and a minor in Chemistry. He was a member of the Mens Varsity Basketball team at Brandeis University prior to relocating to Chapel Hill, NC.

Upon completion of his undergraduate program, Dr. Dorion teamed up with a craniofacial research group studying the impact of cleft lip revision surgery on speech and lip function. Dr. Dorion was chosen by his peers at UNC School of Dentistry to serve as class president for all four years of his general dental training. He continued advanced training with specialized focus in Periodontics, dental implant surgery, and sedation in the Department of Periodontology at UNC School of Dentistry.

Dr. Dorion served as Chief Resident his third year of Periodontics residency. He also worked as a general dentist prior to graduation from the Periodontics program. He simultaneously completed a Master of Public Health degree in Health Policy and Management at the prestigious UNC Gillings School of Global Public Health.

Dr. Dorion is certified to provide IV, nitrous oxide and oral sedation. He serves on advisory boards at both UNC-Chapel Hill and Wake Technical Community College. Dr. Dorion enjoys literacy outreach and volunteering at community safety-net dental clinics.

Dr. Dorion is an active member in many local, state, and national dental organizations:

  • Academy of Osseointegration
  • American Academy of Periodontology
  • North Carolina Society of Periodontists
  • North Carolina Dental Society
  • International Team for Implantology
  • American Dental Association
  • Southern Academy of Periodontology
  • Durham-Orange County Dental Society

Dr. Craig Dorion, located in Chapel Hill, Raleigh & Apex, NC, is a Periodontist who serves patients from Durham, Burlington & Raleigh, NC. We are looking forward to welcoming you to our office and encourage you to schedule your appointment today!

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Dr. Gandini, Periodontist

Liliana Gandini, DMD

Dr. Liliana Gandini earned her dental degree in Bogota, Colombia. In addition, she received her Doctor in Dental Medicine (DMD) degree from the University of Puerto Rico. She completed a two-year program in Advanced Education in General Dentistry (AEGD) as well as her post-graduate periodontal specialty training at the Eastman Dental Center, University of Rochester in 1993. During her periodontal training she was actively involved in several clinical research projects with emphasis in aggressive forms of Periodontitis and Guided Tissue Regeneration. Dr. Gandini served as clinical professor at the Eastman Dental Center and the University of Puerto Rico. She has published various scientific articles in peer-reviewed periodontal journals. Dr. Gandini has practiced periodontics and implant surgery since 1993. She is fluent in English and Spanish.

Dr. Gandini is member of the American Dental Association, the American Academy of Periodontology, the North Carolina Dental Society, the North Carolina Society of Periodontists and the Durham-Orange Dental Society. She was also recently appointed as Consulting Associate Professor of Surgery (Periodontics and Dental Implants) at Duke University. She is a Diplomate of the American Board of Periodontology (Board Certified). A Diplomate is a periodontist who has made significant achievements beyond the mandatory educational requirements of the specialty and who is certified by The American Board of Periodontology.

Dr. Gandini is passionate about her profession and enjoys providing periodontal health to her patients. She practices a full scope of periodontal procedures including non-surgical and surgical techniques to treat all types of periodontal diseases, cosmetic periodontal procedures, placement and repair of implants, ridge augmentation, sinus lift, canine exposures, gingival grafting including tunneling technique, atraumatic extractions and site preservation, crown lengthening and biopsies among others. Dr. Gandini uses the latest technology in 3D imaging and offers the alternative of oral sedation for those patients that need it.

Dr. Gandini lives in Chapel Hill with her husband, Dr. Pedro Santiago, craniofacial orthodontist. They have 2 children attending college. She enjoys tennis, golf music and travelling.

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Dr. Kadoma, Periodontist

Waka Kadoma, DDS, MS

Dr. Kadoma was born in Japan, and also spent her early childhood there. She is fluent in Japanese. She then moved to Toronto, Canada with her family where she grew up.

Dr. Waka Kadoma received her Bachelor of Science Degree from the University of Toronto (U of T) in 1992 in Immunology. She also studied at U of T Graduate School in Immunology. She then earned her Doctor of Dental Surgery (D.D.S.) degree from Case Western Reserve University in Cleveland, Ohio in 1998. She attended the Periodontology department at the University of North Carolina, School of Dentistry from 1998-2001 where she received her specialty training in Periodontics and Implant surgery. In addition, while attending UNC, Dr. Kadoma conducted her Master’s thesis research (with world renowned Dr. Offenbacher) on the association between gum disease and heart attacks. She has a number of publications and has conducted seminars on this topic.

Dr. Kadoma is among the few percentage of periodontists in the world to be awarded a Diplomate status with the American Board of Periodontology. A Diplomate of the American Board of Periodontology is a periodontist who has made significant achievements beyond the mandatory educational requirement of the specialty. A Diplomate has been examined by a panel of internationally respected peers and awarded Diplomate status. Dr. Kadoma has received one of the highest recognitions of achievement afforded by the specialty. Dr. Kadoma achieved this accomplishment within one year of her graduation!
In addition to becoming a Board Certified Periodontist, Dr. Kadoma strives to keep abreast of the advances in dentistry and periodontic treatment. She has attended the Pankey Institute of Higher Dental Education to take courses in Interdisciplinary Comprehensive Patient Care and Interdisciplinary Implant Treatment Sequencing and Planning in order to promote comprehensive patient care and ensure excellent communication with your dentist so that your treatment will be delivered in a well-coordinated manner for an excellent result. Dr. Kadoma is dedicated to improving not only the oral health but also the overall health of her patients.

Dr. Kadoma also has been appointed to the adjunct faculty position at the Dental School at UNC–Chapel Hill, where she teaches periodontal residents, dental students and hygiene students. Dr. Kadoma is an active member of The American Academy of Periodontology, The Southern Academy of Periodontology, The North Carolina Society of Periodontology, the American Dental Association and the North Carolina Dental Association.

Dr. Kadoma lives in Chapel Hill, and enjoys endurance running; including training and competing in Ultra Marathons. She also enjoys cooking many different ethnic cuisines and spending time with her husband, Stephen Pieroni, DDS and their young son, Nicholas.

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Dr. Wu, Periodontist

Alice Wu, DDS, MS

Dr. Wu received her Bachelor of Applied Science (Engineering Science, Biomedical Option) and her Doctor of Dental Surgery from the University of Toronto, Canada. Graduating with honors, she continued on to receive her Certificate in Periodontics and Master of Science at the University of North Carolina (UNC). During her full-time residency training at UNC, she specialized in treatment of periodontal disease, root coverage procedures, implant placement and sedation. She is currently an adjunct clinical assistant professor at the ECU School of Dental Medicine.

Dr. Wu received numerous awards, including the Southern Academy of Periodontology Billy M. Pennel Research Award, the Dr. Michael Oliver Memorial Scholarship in Periodontics, the Dr. Alan K. Joe Family Scholarships in Orthodontics and the Special Student Undergraduate Certificate of Merit Award. She is also a finalist in the American Academy of Periodontology Balint Orban Research Competition. She is an active member of the American Academy of Periodontology (AAP) and the American Academy of Osseointegration (AO) and pursues continuing education through local, regional and national dental conferences. She is a Board Certified Periodontist and is also certified to provide intravenous, oral and nitrous oxide sedation. She currently resides in Raleigh with her husband.

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Dr. Walters, Periodontist

Dr. Douglas Walters DDS

Doug Walters is a native of Missouri. He has been a North Carolinian since enrolling at Duke University where he graduated with a Bachelor of Arts degree in Political Science in 1987. Following graduation, Dr. Walters worked in corporate finance with Wachovia Bank and Trust Co. in Asheville, N.C.

Heeding a call to serve others, Dr. Walters attended dental school at the University of Missouri, graduating with honors in 2000. He was elected as a class officer all four years. Encouraged by his interest in the interrelationship between oral health and overall body health, Dr. Walters completed his residency in Periodontics and dental implant surgery also at the University of Missouri. He conducted research regarding the effects of sonic tooth brush energy on the microbiology of the mouth. Dr. Walters’ findings were published in the highly respected Journal of Clinical Periodontology. He has also participated in clinical research regarding the relationship between diabetes and gum disease.

Dr. Walters is committed to providing patients with the highest quality of care. He is a Diplomate of the American Board of Periodontology (Board Certified). This certification is held by only a small percentage of periodontists and represents achievement beyond the mandatory educational requirements for the specialty.

Dr. Walters continues to advance his clinical knowledge to provide the most appropriate therapy options for patients. His practice focuses on surgical and non-surgical treatment of gum disease, including laser periodontal therapy (LANAP), esthetic gingival treatment, periodontal bone regeneration, dental implant site development and placement, treatment of ailing implants, and diagnosis and treatment of oral lesions.

Dr. Walters is a member of the American Academy of Periodontology as well as local, state and national dental societies.

Doug and his wife Julie are the parents of two sons attending college. Outside of dentistry, Dr. Walters enjoys service through his church, singing, scuba diving, tennis, and, occasionally, politics.

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