860 Upper Wentworth

Meet the 860 Team

Dr. Marilyn Gregus

Dr. Gregus is a native Hamiltonian, currently residing in Ancaster. She has practiced dentistry for over 20 years in the local area. She had the honour of working in and eventually taking over her father’s dental practice, Dr. Walter Gregus, after she graduated from dental school. Dr. Gregus is known for her caring and humorous personality and exceptional dental work. She has been involved with many charitable organizations and causes in the local community. Dr. Gregus has perfected quality care and a relaxing experience.

Dr. Linda Dang

After completion of her Honours Bachelor of Sciences at McMaster University, Dr. Dang continued her education at the University of Toronto Faculty of Dentistry. Upon graduating she was inducted in Omnicron Kappa Epsilon (OKU), the national dental honour society that recognizes dental students who have distinguished themselves by excellence in scholarship while also demonstrating exemplary traits of character and potential qualities for future professional growth and attainments.

Born in Toronto and raised in Woodbridge, Dr. Dang comes to 860 Dental with a strong commitment and involvement in the dental world. She is currently a member of both the Hamilton Dental Academy and the Burlington Dental Academy, where she sits on the Executive as Secretary. Dr. Dang brings to the practice sound knowledge in the dental field, and had additional training in restoring implants, management of sleep obstructive disorders, and complicated extractions. She actively continues to take continuing education courses and is currently working towards becoming an Invisalign provider.
In her spare time, she enjoys being physically active. You can find her practicing yoga, playing volleyball, spinning, roller blading, swimming, and kayaking. In the past she has been an enthusiastic dragon boat racer and co-captain for Plak Attack, UofT’s own dentistry team.

Dr. Komal Lamba

Born and raised in Hamilton, Dr. Lamba attended McMaster University where she obtained her undergraduate degree. Pairing her love of travel and her passion for quality dental care she completed her dental degree in Cork, Ireland. She strongly believes in giving back and does so both locally and abroad; she set up temporary dental clinics in Ghana where she provided dental treatment for those less privileged.

Dr. Lamba brings a positive energy to all facets of her life. Her friendly and approachable demeanor helps comfort patients; even the most anxious patients leave with a smile! She is currently completing courses in moderate conscious sedation and Invisalign aligners in order to provide better care for her patients. Apart from dentistry, Dr. Lamba spends her time off hiking, being outdoors, spending time with family, and eating lots of sushi.


Our newest member of the 860 Dental team brings with her a wealth of experience and a great energy! A recent graduate from Niagara College, Dana is a Level II Certified Dental Assistant. She believes that the best part of her job is the variety that comes along with it! She loves meeting new people, helping patients, and learning something new every day!

When Dana is not in the office, you can find her spending time with her family and friends, at the gym, playing volleyball, and enjoying the outdoors.


Dawna brings to 860 Dental over 15 years of healthcare experience. Her willingness to help out and lend a hand whoever she can and whenever she can, at work and at home, is evident; all you have to do is ask anyone at the practice, or one of her two children and her husband of 31 years.

When Dawna is not at 860 Dental she enjoys her gardens, cooking ,baking, time at the cottage, but most of all spending time with her family … as well as waiting for the birth of her first grandchild.


Fiona was born and raised in Hamilton and has been with 860 Dental for over three years working as their Dental Assistant and Dental Receptionist. Her cheerful laugh and sunny voice bring infectious happiness to the office. If you need anything at all, Fiona is there to help!

When she’s not at the office, her three kids and three year old chihuahua, Kujo, keep her busy. In her spare time Fiona loves baking up delicious cakes, cupcakes, and cake-pops for her company “For Goodness Cake”. Her specialties are salted caramel and bubble gum; and yes, they’re as mouthwatering as they sound!


Kara has been in the dental profession for 27 years and has been at 860 for fourteen of them. She has a dental assisting background and is currently managing the hub of the office as our office administrator. To Kara, the needs and wants of each patient comes before her own.

She goes above and beyond to get to know each and every one of our patients and treats all of them like her family! She is exceptional at helping patients with all aspects of their scheduling, financial, and educational needs.

Her caring heart also helps out the Hamilton community. Over five years ago, Kara spearheaded the 860 Dental food drive that sees so many non-perishable food items being distributed to Hamilton Food Share, Mission Services, and Neighbour to Neighbour.

When Kara is not at the office, she enjoys spending quality time with her family and her five year old Chihuahua, Lola. She also loves cooking, baking, growing her herb garden, and cheering on her favourite team, the Toronto Maple Leafs.


I love what I do! Katrina’s passion for dentistry is seen in her professional background that includes nearly fifteen years in the dental profession. She has experience as an office manager, dental receptionist, and dental assistant. She is currently 860 Dental’s dental assistant and receptionist.

Katrina’s bright and cheerful demeanor as well as her fun and caring side are seen all day and every day from the staff and patients alike. She really goes above and beyond!

Outside of 860 Dental, Katrina loves reading, cooking, enjoying the outdoors, event planning, and travelling whenever and wherever she can; and just like any woman, she loves shopping!

Larissa, RDH

Larissa has 20 years of dental experience; many of those years working with Dr. Marilyn Gregus in two downtown Hamilton dental practices. She has expertise in all aspects of patient care and office operations. As a dental hygienist she is gentle, thorough, knowledgeable and excellent at easing anxiety.

For over a decade Larissa has been the Program Director of a local Dental Hygiene College overseeing the operations, curriculum and daily activities of staff, faculty, and students. She is also very active in the profession sitting on various boards and participating in many hours of volunteering and professional development.

When she is not in the office, Larissa enjoys spending time with her two horses, Moose and Bow. Horses have been her top hobby for over 30 years. In addition to two horses keeping her busy, she has three children – Sophia, 5; Nixon, 2; and Colten, 3 months.

Shella, RDH

Shella is a Registered Dental Hygienist who has worked in the practice for well over a decade. She provides comprehensive, client-specific, preventative services to all patients with the use of current technology and evidence-based practice. Her friendly nature immediately sets patients at ease during their appointments with her.

When she is not in the office, Shella loves spending plenty of quality time with her friends and family; especially her husband, their two year old son, Kane, and their dog, Sage. Shella is an avid camper and loves renovating her new home in the country with a variety of DIY projects. A self-proclaimed foodie, she enjoys cooking, baking, and trying out all sorts of different cuisines. Her favourite type of food is sushi.

Sonia, RDH

Born and raised in Hamilton, Sonia has almost 10 years’ experience as a Registered Dental Hygienist. Her gentle techniques and calm manner helps even the most nervous patient to relax during appointments. She offers thorough and high-quality dental hygiene care, and is excellent in hearing and meeting your specific needs. She is wonderful at educating patients and creating a supportive environment to allow for the best possible individualized treatment options.

Outside of 860 Dental, you can find Sonia in the gym, at church, or spending quality time with her family; including her husband, Donny, and their bulldog, Monroe. Sonia is also a self-taught makeup artist that loves anything to do with beauty.


Teresa brings to 860 Dental over 25 years’ worth of healthcare experience. Prior to being the dental administrator at the practice she was an optometric assistant.

Born and raised in St Catharines, Teresa moved to Hamilton with her husband over 30 years ago. The youngest child of Italian immigrants and the proud mom of two, Teresa raises her kids with the same values she was taught: to respect, care, and of course to always “manggia!” (eat). She brings these values to the office as well!

When Teresa is not at the practice, she enjoys cooking, baking, shopping, and traveling whenever possible. Her favorite spot to visit is the Big Apple.

Contact Details

860 Upper Wentworth Street
Hamilton, Ontario, L9A 4W4