Meet Our Team
Our Dentists
Dr Changho (CJ)
Principal Dentist
Dr An is the Principal Dentist at The Cosmetic & Holistic Dentistry Centre. He completed his Master of Dentistry at Griffith University and provides care with a gentle, thoughtful approach that prioritises preserving natural tooth structure and supporting long-term oral wellness.
Before establishing his practice in Coffs Harbour, Dr An worked across the NSW South Coast, developing strong patient relationships and providing comprehensive family and advanced dentistry. He has undertaken extensive training in Sydney in modern digital dentistry, dental implant surgery, regenerative bone and soft-tissue procedures, and biomimetic restorative techniques designed to strengthen and conserve natural teeth. His clinical interests also include aesthetic ceramic restorations, root canal therapy, and clear aligner treatment for gentle functional improvement.
Dr Yahia Sameh
General & Holistic Dentist, Practice Founder
Dr. Yahia Sameh is a caring and experienced dentist who enjoys helping patients of all ages achieve healthy, confident smiles. He provides a full range of general and restorative dental care., along with advanced treatments in airway- focused dentistry, TMJ and jaw function, maxillary expansion orthodontic planning, and implant surgery.
After completing postgraduate implant training through the Master Clinician Program at Loma Linda University in California, Dr. Sameh has proudly cared for families in Coffs Harbor for more than 15 years.
Dr. Sameh takes a holistic approach to dentistry, looking at how breathing, jaw development, bite alignment, and muscle balance work together. His focus is on creating results that feel comfortable, look natural, and last for years to come.
Whether he’s restoring a tooth, supporting jaw growth. easing discomfort, or placing implants with precision, Dr Sameh always strives to make each visit calm, positive, and reassuring. Patients appreciate his gentle manner, clear explanations, and genuine care, knowing they’re a in safe hands every step of the way.
Our Team
William McGeachie
Senior Oral Health Therapist (Adult & Child Scope), University of Newcastle
William is an experienced clinician who combines a serious, high-quality approach to dental care with a warm, friendly and outgoing personality. As a Senior Oral Health Therapist, he provides a wide range of preventive and therapeutic treatments — including periodontal therapy, gum health maintenance, and restorative care — and he takes genuine pride in producing results that are comfortable, functional and long-lasting.
William also has a natural rapport with children, helping to make early dental experiences positive and encouraging. He approaches paediatric care with patience and empathy, supporting young patients to build confidence and healthy oral habits that can last for life.
Patients often notice the energy, focus and care he brings to every appointment. William is attentive, thorough and fully present with each person, ensuring that treatment is clearly explained and delivered with thoughtful detail.
Outside the clinic, William enjoys the coastal lifestyle — surfing, fishing, and spending time outdoors. He and his partner have made Coffs Harbour home, and he genuinely values being part of this community. That sense of connection shows in the grounded and caring way he looks after the people he treats.
Emily Twigg
Clinic Manager
Emily is our Clinic Manager and brings over 20 years of experience in the dental field. She is known for her genuine, steady and supportive approach, and she takes great pride in helping the clinic run smoothly each day.
After many years working as part of the clinical team, Emily stepped into the practice management role when our previous manager retired. She has since become a central point of connection within the clinic — coordinating treatment flow, assisting patients, and guiding our dental assistants through training and development.
Emily is deeply valued for her reliability, dedication and calm leadership. She is often the person ensuring patients feel welcomed and cared for, and that our team has what they need to provide comfortable, well-organised treatment.
Outside of work, Emily enjoys family life with her fiancé and children. She loves being outdoors — especially swimming down at the jetty and exploring fresh-water swimming holes together. Her grounded and thoughtful nature is reflected in the way she manages the clinic — with consistency, sincerity and a genuine commitment to the wellbeing of both patients and staff.
Holly Carson
Reception & Dental Assistant
Holly works across both reception and clinical support here at TCAHDC. She enjoys welcoming patients and helping them feel comfortable from the moment they arrive. Whether she is assisting during treatment or coordinating appointments, she is dedicated to ensuring each visit is smooth, organised and stress-free.
Holly values being part of a team focused on providing thoughtful care and confident, healthy smiles. Her warm communication style and steady attention to detail make her a trusted and reassuring presence for both patients and colleagues.
Outside the clinic, Holly enjoys spending time with friends and family, exploring new hiking trails, and baking sourdough bread.
Charlotte Holt
Dental Assistant
Charlotte is a highly capable and efficient member of our clinical team. She is quick to understand procedures, organised in her approach, and thoughtful in the way she supports both patients and clinicians throughout treatment. Charlotte is currently studying Biomedical Science, and she brings this strong academic foundation into her work, often taking an analytical and well-reasoned approach to clinical tasks.
In the surgery, Charlotte works with steady focus and clear intention. She prepares and maintains the clinical environment to a high standard and assists chairside with confidence, precision and calm attention. Patients appreciate her gentle communication style and the way she checks in quietly to ensure they feel informed and comfortable.
Charlotte is naturally curious and enjoys understanding why something is done, not just how — which contributes to her growth as a knowledgeable and dependable clinical assistant. Her ability to balance study and professional work reflects her strong discipline, maturity and commitment.
Outside the clinic, Charlotte enjoys spending time with friends and family and continues to pursue her academic interests with motivation and enthusiasm.
Charlotte brings intelligence, efficiency and steady professionalism to the practice, and we are fortunate to have her as part of our team.
Ebony
Dental Assistant
Ebony is a valued member of our dental assisting team. She is thoughtful, steady and reliable in the way she works, and she has a natural ability to follow direction carefully and confidently. Although she is quiet by nature, Ebony contributes a calm and reassuring presence to the clinic, which helps patients feel comfortable and supported throughout their appointments.
She learns quickly and pays close attention to the details that help treatment flow smoothly — from preparing and maintaining the surgery to assisting chairside with focus and care. Ebony is also highly aware of patient comfort, offering gentle support in a way that is unobtrusive, respectful and empathetic.
Those who know Ebony appreciate her warm personality and her beautiful, genuine laugh, which brings a sense of ease and lightness to the clinic. She is the youngest of three sisters and enjoys being part of a supportive and close-knit team environment. Ebony and Reegan work closely together and their friendship adds to the positive and collaborative atmosphere of the practice.
Ebony brings gentleness, consistency and quiet confidence to her role, and we are proud to have her as part of our team.
Reegan Desmond
Dental Assistant
Reegan is a valued member of our clinical team and is currently completing her Certificate III in Dental Assisting. Becoming a dental assistant has been a long-time goal for her, and she approaches her work with focus, sincerity and a genuine commitment to doing things well. She is an exceptionally fast learner, reliable, and often anticipates what the surgery or clinician needs before being asked, which helps appointments flow smoothly and comfortably.
Reegan has a calm and reassuring presence in the treatment room. She communicates with patients gently and respectfully, and she is highly attentive to body language and comfort levels — offering support in quiet, thoughtful ways that help people feel at ease. Whether preparing a room, assisting chairside, or guiding a patient through the visit, she brings care and empathy to every step.
Outside of work, Reegan enjoys life as the middle child of nine siblings, and she loves to cook for her family. Her favourite fruit is strawberries, a small detail that reflects her warm and down-to-earth nature.
Reegan brings genuine kindness, steady effort, and pride in her work to our practice. We are honoured to support her continued growth in the profession.