Our Team
Meet Our Doctors
At EndoAsleep, our strength lies in the people who make your care possible. From highly trained endodontic specialists to a dedicated support staff, every member of our team shares one goal, to provide you with safe, comfortable, and stress-free dental care.
Patients from Toronto, the GTA, and across Ontario trust us not only for our advanced expertise, but also for the warmth and compassion we bring to every visit.
Dr. Andrew Moncarz
BSc, DDS, Dip An, MSc, FRCD(C)
Andrew Moncarz was born and raised in Toronto. He received his DDS from U of T in 1999 as well as the Gordon Cressy Student Leadership Award for outstanding voluntary service to the university. Dr. Moncarz completed his dental anaesthesiology training at The Mount Sinai Medical Center in New York City in 2001. He received his Masters from U of T and his Fellowship (Royal College of Dentists of Canada) in Endodontics in 2004. He received his Diplomate status from the National Dental Board of Anesthesiology (USA) in 2005. He became a Specialist in Dental Anaesthesia in Ontario in 2008.
Dr. Moncarz is currently a lecturer and a clinical demonstrator at the Faculty of Dentistry, University of Toronto in the Disciplines of Paediatric Dentistry and Dental Anaesthesia. He is the co-Director of Endodontics in the Department of Dentistry at Mount Sinai Hospital in Toronto.
Dr. Moncarz is a Past President of the George Hare Endodontic Study Club and is a Past President of the Ontario Society of Endodontists.
Out of the office, he enjoys life with his wife and three children. He is an avid bass player and collector of vintage basses
Dr. Jonathan Madras
BSc (Hons.), DDS, Cert Endo, FRCD(C),
Diplomate – American Board of Endodontics
A Toronto native, Dr. Jonathan (Jon) Madras brings extensive training, teaching experience, and a passion for patient-centered care. He received his DDS from the University of Western Ontario, where he earned seven awards, followed by a general practice residency at Mount Sinai Hospital in Toronto.
Dr. Madras completed his Endodontic specialty training at Nova Southeastern University in Florida and earned his Fellowship from the Royal College of Dentists of Canada in 2010. He is also a Diplomate of the American Board of Endodontics.
Jon is an active educator, serving as a clinical instructor at the University of Toronto and lecturing internationally. He is also a Past President of the George Hare Endodontic Study Club.
Outside the office, Jon enjoys time with his wife and two daughters. His hobbies include fitness, skiing, scuba diving, painting, illustration, and playing guitar.
Dr. Adam Sgro
BSc (Hons.), DDS, MSc, FRCD(C)
Born and raised in Toronto, Dr. Adam Sgro grounds his clinical work in research and evidence-based care, with a particular interest in improving outcomes in root canal treatment and retreatment.
He earned his Doctor of Dental Surgery from New York University College of Dentistry. Back in Toronto, he completed a hospital dental residency at Mount Sinai Hospital, then pursued his Master of Science in Endodontics at the University of Toronto, where he served as Chief Resident and went on to earn his Fellowship from the Royal College of Dentists of Canada.
Dr. Sgro holds a staff appointment at Mount Sinai Hospital, is a lecturer at the University of Toronto, and has contributed to systematic reviews, network meta-analyses, and cohort studies on endodontic outcomes, earning recognition including the Ontario Graduate Scholarship.
Away from the office, Adam can usually be found on a ski hill, out backcountry camping, or experimenting in the kitchen.
Dr. Michael Tiedemann
PhD, DDS, MSc, FRCD(C)
Born in Sudbury, Ontario, Dr. Michael Tiedemann’s path to endodontics reflects both academic excellence and hands-on experience. After completing his PhD in Chemistry at Western University, he earned his DDS, where he served as class president and won the Endodontic Award.
He practiced dentistry in Hamilton and Grimsby for three years before returning to the University of Toronto to complete his specialty training and Fellowship in Endodontics with the Royal College of Dentists of Canada.
Michael lives in Toronto with his wife and three cats. In his spare time, he enjoys cycling, tabletop gaming, and brewing his own beer. He’s also a keen outdoorsman and recently ended a three-year no-fish streak by catching bass in Restoule, Ontario
Our Support Staff
Behind every successful treatment is a team of caring professionals who ensure your visit is seamless from start to finish.
Front Office Team
Emma
Practice Manager
Hello, I’m Emma, the Office Manager. I have been with EndoAsleep since 2012. I enjoy creating a positive environment where both patients and team members are valued, heard, and cared for. I love helping patients feel comfortable and relaxed by offering compassionate support and a welcoming atmosphere.
Outside of work, I love spending time with my family and our fur babies. We often explore the great outdoors together, especially through hiking and camping.
Joy
Reception
My name is Joy, and I am a dedicated Dental Receptionist with over 21 years of experience in the dental field, including more than 6 years at Endo Asleep. I am a mature and reliable team worker who enjoys working with people and creating a welcoming, supportive environment for patients, colleague and doctors.
Outside of work, I enjoy going to the gym, playing volleyball and spending quality time with my family. I am also able to provide translation support in Filipino Dialect.
Christine
Reception
Angela
Reception
Hello! I’m Angela, one of the front desk receptionists here. I love working with this amazing team because we truly treat each other like family. I assist our patients with compassion and professionalism, ensuring everyone feels at easy from the moment they walk in the door. It’s always a joy to see patients satisfied after their visit. On weekends, I enjoy being with my family.
These are the friendly voices and smiles that greet you, answer your questions, and help you feel at ease from the moment you walk in.
Clinical Assisting Team
Maya
Assistant
Maya began working at EndoAsleep July 2011 as a Dental Assistant and has been a dedicated member of the team ever since. She enjoys interacting with patients and collaborating with her co workers to help create a positive and welcoming environment. In her free time, Maya loves spending time with her family and friends, learning new things and exploring new places.
Marcia
Assistant
I’m Marcia, a bilingual (English/Spanish) Dental Assistant here to help with your dental care and make sure you feel comfortable during your visit
Myrrasole
Assistant
My name is Myrrasole, I am a dedicated dental assistant and a proud mother of two wonderful boys. I cherish creating memories with my family, discovering delightful destinations for my children and indulging in the relaxing escape of Netflix.
Natasha
Assistant
Natasha is a dedicated dental assistant with over a decade of experience, having worked in the field since 2013. She is committed to providing compassionate, high-quality care and strives to ensure every patient feels comfortable, supported, and well-informed throughout their dental visit. Natasha brings strong attention to detail, excellent chairside skills, and a calm, professional presence that contributes greatly to an efficient and welcoming dental team.
Outside of work, Natasha enjoys spending time with her family, traveling, caring for her plants, and sewing.
Jiwon
Assistant
My name is Jiwon, I am a dental assistant who loves connection, growth and being a delightful purr-oud mom of two whiskered babies.
Sharri
Sterilization
I’m Sharri, I am the sterilization Assistant committed to maintaining the highest standards of safety and compliance with IPAC protocols. I am detail oriented and thorough, I take pride in ensuring every task is completed with accuracy and consistency. I’m a supportive team player who’s always ready to help my colleagues and I enjoy keeping the workday positive with quick banter. Outside of work, I’m a dedicated music and movie lover.
Brianne
Anaesthesia Nurse
Our clinical staff works side by side with our doctors to ensure treatments run smoothly and safely. From chairside assistance to patient monitoring, their expertise and attention to detail keep your experience stress-free.
Compassion, Expertise, and Teamwork
At EndoAsleep, we believe that a successful dental experience is the result of a strong team effort. Every member of our clinic understands that the thought of undergoing root canal treatment can be very stressful. Our doctors, nurses, assistants, and administrators are here to support you with empathy and compassion. Together, we create a welcoming and caring environment where patients from Toronto, the GTA, and across Ontario can feel safe, understood.