Durham OFFICE

Dental School: University of Michigan School of Dentistry (D.D.S.)

Medical School: University of North Carolina School of Medicine (M.D.)

Residency: University of North Carolina at Chapel Hill

Surgical Interests: 

• Anesthesia and sedation
• Dentoalveolar surgery, including wisdom tooth and expose and bond surgeries
• Dental implant surgery, including full mouth reconstruction and bone augmentation, All-on-X, and zygomatic implants
• Oral and maxillofacial pathology
• Surgical treatment of temporomandibular joint disorders (TMJD)
• Corrective (orthognathic) jaw surgery

Professional Associations Include:

• Diplomate of the American Board of Oral and Maxillofacial Surgery (ABOMS)
• American Association of Oral and Maxillofacial Surgeons (AAOMS)
• American Dental Association (ADA)
• NC Dental Society (NCDS)
• American Medical Association (AMA)
• Omicron Kappa Upsilon (OKU)
• Active Hospital Privileges, UNC REX Hospital

Hobbies/Interests:  Enjoys being outdoors, traveling, spending time with family, photography, and single malt scotch.

Lorenza Donnelly, originally from the San Francisco Bay Area, earned her Bachelor of Science in Cellular and Molecular Biology from the University of Michigan (U-M) in Ann Arbor, graduating with Highest Distinction (summa cum laude) and High Honors. She continued at the U-M School of Dentistry, where she earned her dental degree (D.D.S.), finishing at the top of her class and being inducted into the OKU National Dental Honor Society.

Dr. Donnelly completed her Oral and Maxillofacial Surgery Residency at the University of North Carolina at Chapel Hill (UNC Health) and earned her medical degree from the UNC School of Medicine. Her residency included a general surgery internship and extensive training within the Department of Anesthesiology, equipping her to safely provide anesthesia for both adult and pediatric patients. At UNC, she trained with leaders in the field, including Dr. Timothy Turvey and Dr. George Blakey, and gained surgical expertise in areas such as orthognathic jaw surgery, surgical treatment of the temporomandibular joint (TMJ), cleft and craniofacial surgery, management of oral and maxillofacial pathology, dental implants, dentoalveolar surgery, facial aesthetic surgery, and facial trauma surgery. During her residency, Dr. Donnelly also rotated at Mission Hospital in Asheville, NC, a level 2 trauma center, and the Durham VA Health Center. Her diverse training equipped her to care for patients of all ages and backgrounds.

An accomplished researcher, Dr. Donnelly has published in peer-reviewed journals, won awards, and presented her work nationally. Her commitment to collaborative care led her to participate in the interdisciplinary Pediatric Rheumatology / TMJ and Pediatric Craniofacial clinics at UNC. She also worked closely alongside orthodontic, prosthodontic, and general practice residents within the UNC Adams School of Dentistry. She maintains active North Carolina medical and dental licenses.

Dr. Donnelly and her family fell in love with the Triangle during her residency and decided to make it their home. She currently resides in Chapel Hill, NC with her husband, Chris, their two daughters, and their dogs, a German Shepherd (Oban) and a husky (Mika).

Patient Care Philosophy:

Dr. Donnelly is committed to delivering personalized, patient-centered care. She ensures that each patient’s comfort and peace of mind are a priority by addressing individual needs and concerns with empathy and understanding. Her priority is to create a welcoming environment where patients feel informed and at ease throughout their treatment.

She believes in empowering her patients to take ownership of their health by ensuring they understand their condition and treatment options. She feels that this collaborative approach encourages confidence and leads to better outcomes. Dr. Donnelly also tailors her care to suit patients of all ages—from children and teenagers to adults and geriatric patients—ensuring that each individual receives exceptional care.

Dental School: University of Pennsylvania School of Dental Medicine

Residency: Harvard School of Dental Medicine

Surgical Interests: Laser-assisted periodontal therapy, peri-implantitis treatment, soft-tissue grafting, guided tissue regeneration

Professional Associations Include:

• American Academy of Periodontology
• Academy of Osseointegration
• American Dental Association
• North Carolina Dental Society
• Massachusetts Dental Society

Hobbies/Interests: Hiking, fishing, cooking, traveling

Dr. Tomack was born and raised in Westchester, New York and earned his bachelor’s degree in biology at the University of Delaware. He then went on to pursue his Doctor of Dental Medicine (DMD) degree at the University of Pennsylvania. It was during this time that Dr. Tomack found his passion for the specialty of Periodontics. Subsequently, Dr. Tomack pursued a Master of Medical Science (MMSc) degree in oral biology and a certificate in Periodontics from the Harvard School of Dental Medicine. While at Harvard, Dr. Tomack served as chief resident. He also performed extensive research evaluating new risk factors for gum recession around natural teeth using novel methodology (dental ultrasonography and 3D surface defect mapping). Dr. Tomack enjoys creating long lasting relationships with patients and is eager to provide the best care possible.

In his free time, Dr. Tomack enjoys cooking and trying out new restaurants. He also loves to spend time outdoors exploring new beaches and hiking trails. Dr. Tomack has been on several mission trips to Lima and Cusco, Peru and plans on returning soon to provide additional dental care.