Our Team

Our team at Orleans Gardens Dental Centre - Dentist in Orleans, ON. 

Dr. Thuy-Tu Nguyen (D.M.D.)

Dr. Nguyen graduated from the University of Montreal where she received her Doctor of Dental Medicine (DMD) in 1995.  She pursued a Residency in General Dentistry with McGill University at the Montreal General Hospital in 1996.  She has Been practicing dentistry for over 18 years at Orleans Gardens Dental Centre.

Dr. Ken Marenco (D.D.S.)

Dr. Marenco completed his dental education at McGill University in 1998.

In 1999, he went on to pursue graduate training at the Montreal General Hospital’s general practice residency.

From 1999 – 2003, Dr. Marenco acted as faculty lecturer and clinical instructor to the dental residents at the Montreal General Hospital, a graduate teaching clinic of McGill University’s Faculty of Dentistry.

From 1999 – 2003, he provided endodontic and surgical periodontal therapy at two general dental practices in Montreal while providing comprehensive dental care at a third clinic.

In 2003, Dr. Marenco moved to Ottawa, where he became part owner of the Orleans Gardens Dental Centre. 

He currently resides with his wife and two children in the community of Orleans.” 

His passion for dentistry shows through the patience and care he provides his patients.  He is always up-to-date on the latest techniques through his involvement in continuing education courses and the careful review of scientific, peer-reviewed dental literature.

Dr. Marenco prides himself in providing patients with information to guide them in making the best possible decisions on procedures and treatments towards their dental care and their vision for their oral health.

Few referrals are required since most services are provided at the clinic.  This includes an orthodontic specialist, IV sedation wisdom teeth removal, implant placement and root canals.

Dr. Marenco's practice mainly focuses on comprehensive dental care for the whole family, but also provides surgical services including implant placement and periodontal surgical services.

He plays hockey and tennis and enjoys spending time with his family and friends, skiing, soccer, cycling, swimming, traveling, and renovating.


Dr. Bill Ring (D.D.S., Orthodontist)

Allison Bathurst (Office Manager)

Allison graduated from the Dental Assisting Level II program in 2000.  She has been with Orleans Gardens Dental Centre since 2000.  Her warm friendly presence can be felt throughout the office.  When not at work Allison keeps busy with volunteering for her children’s school and with the local baseball association.  She also enjoys going to the gym, playing floor hockey and spending time with family and friends.

Jen Brennan (Treatment Coordinator for Dr. Ken Marenco)

Jen has enjoyed working as Dr. Marenco’s Administrative Assistant/Treatment Coordinator since 2008.

Jessie Sabourin (Dental Assistant) (Treatment Coordinator for Dr. Ken Marenco)

After Jessie graduated from Dental Assisting Level II in 2011 she has since had the opportunity to work with both Dr. Nguyen and Dr. Marenco.  She has been treatment coordinator and chairside assistant for both of the doctors.   While currently working as Dr. Marenco’s Treatment coordinator you may see her assisting him as well.  With Jessie’s warm and friendly personality she will make you feel at ease.

Melissa Jess (Dental Assistant) (Treatment Coordinator for Dr. Bill Ring)

Melissa graduated from the Dental Assistant Level II Course in 2005.  She started her career with Orleans Gardens Dental Centre in July 2005 assisting Dr. Nguyen.  Melissa is now Dr. Ring’s main dental assistant and treatment coordinator.  Any questions about orthodontics, she is the one to ask.  Melissa is passionate about fitness, enjoys Ultimate Frisbee, biking, being outdoors and going to the gym.

Natalie Martin (Registered Dental Hygienist)

Natalie has been a valued member of our Orleans Gardens Dental team since 1996.

She graduated from University of Moncton in 1993 with a Bachelor of Arts. In 1995 she moved to Ottawa from New Brunswick to pursue her education. In 1996 she graduated from La Cité Collegiale with a certificate in Dental Assisting and in 1998 she received her diploma in Dental Hygiene. Natalie was recruited to the board of La Cité collegiale Dental Hygiene from (2001-2008). Over the years she has worked in various fields including general practice, orthodontics, oral surgery and taught oral health education at various schools.
When not educating our patients about the importance of oral health she can be found travelling, baking and cooking delicious meals and spending as much time outdoors as she can with her husband and her two beautiful Chows ShenLung and FuShīLu.
Natalie's infectious laughter can be heard throughout our clinic and her cheery personality puts our nervous patients at ease. She serves our community in english or french, with smiles for everyone.

Heather Ling (Registered Dental Hygienist)

Heather graduated with honors from the Algonquin College Dental Hygiene program in 1999.  She has called Orleans Gardens Dental Centre her second family since 2002.  Heather is active in the dental community and is committed to continuing education and staying up-to-date.  She is especially passionate about overall health and wellness and the connection to oral health.  Heather is currently working towards her Nutritional Consulting Diploma.  A holistic approach to dental hygiene means it’s not just about brushing and flossing!

Kimberly Juma (Registered Dental Hygienist)

Kim started at the Orleans Gardens Dental Centre in 2007 as a Dental Assistant.  Later that year she attended Niagara College for the Dental Hygiene program and returned to the office after graduating in 2009. Her infectious laugh can be heard throughout the clinic. In her spare time, Kim enjoys spending time with family, friends and her husband Khalim. 

Jessica Pinto (Registered Dental Hygienist)

Jessica has been working with Orleans Gardens Dental Centre since 2013.  She began her studies at La Cite Collegiale (one of Ontario’s French speaking colleges) in 2010, successfully completed their Dental Hygiene Program in the summer of 2012.  Although she has only just started her career, there is no doubt that she enjoys it and is looking forward to continue learning.  Jessica enjoys spending time with friends, family and beings outdoors with her dog.

Jessica Comeau (Registered Dental Hygienist)

Jessica initially joined our team at Orleans Gardens Dental Centre as a Dental Assistant to Dr. Marenco in 2010 after graduation from the Dental Assisting Level II program.  Two years later she returned to Algonquin College and graduated with an advanced Dental Hygiene diploma in 2015.  Although Jessica is fresh into her career, she looks forward to the continuing education Dental Hygiene provides.  Jessica is passionate about health, fitness and nutrition.  She loves crossfit, spinning, running and spending time with friends and family.

Kandice Clark (Dental Assistant) (Treatment Coordinator for Dr. Ken Marenco)

Kandice graduated in 2008 as a level II Dental Assistant. She has been with Orleans Gardens Dental Centre since March 2014. She has gained much knowledge over the years in many aspects of dentistry, including Pediatrics, and Orthodontics. Kandice likes to spend her time with her Husband, Chris, her two boys, Rylen, Jackson, as well her dog, Bowser.