Yonge Eagle Smiles Family
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Yonge Eagle Smiles Family
Quality dentistry is an important part of your overall health, so it is important to work with an individual dentist who offers a complete scope of dental care to patients of all ages. If you or your family is looking for a general family dentist in Newmarket, you have come to the right place! As a solo practitioner with a dedicated Team, Dr. Lederer will personally oversee your oral health needs, to best ensure continuity of your dental care.

Our website was developed to serve as a guide and reference about your dental and oral health. Dentistry is constantly evolving. Our goal is to keep you up to date on how today's dentistry can help benefit you and your family. Dentistry has come a long way in providing a comfortable experience. We are committed to ensuring that you and your family will be treated in a warm and compassionate environment.
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We think you will appreciate the warm and friendly manner in which we treat our patients. Our commitment is to apply our dental knowledge and skills in a caring and gentle way, so you can feel at ease as we help you attain the smile you desire. We're also a family and kid friendly office, and we want you to know that we enjoy patients of all ages!
Dr. Lederer began her professional life as a Registered Nurse. A Kitchener native, she graduated first from Conestoga College's Diploma Nursing Program, then from The University of Western Ontario with a BScN degree. With a passion for hands-on patient care and health promotion, she continued her education at The University of Western Ontario's Faculty of Dentisty, graduating with distinction in 1991.
Gum disease doesn't happen overnight. It is a slow and progressive infection which can lead to many problems including tooth loss. Some people are at a higher risk for developing gum disease than others. In its early stages, gum disease may have no symptoms, which is why regular dental check ups, cleanings and gum disease assessments are so vital.
Your oral health and your smile can be improved with mercury-free materials that provide you with a natural look. Mercury-free options are available for many restorative treatments including fillings and crowns. If you require more involved treatments, Dr. Lederer can create a customized treatment plan for you.
Dr. Lederer may recommend extraction if a tooth has a hopeless prognosis. For example, in advanced gum disease, there may simply not be enough healthy bone to anchor a tooth. If a root canal treatment is not possible due to a root fracture or severely calcified root canal, or if a tooth is so badly broken down that a filling is no longer possible, it will have to be extracted in order to relieve pain and infection.
Reviews (14)
Stephanie Randazzo
Stephanie Randazzo
Dec 19, 2021
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I am very happy with the care I receive from Dr Lederer and her assistants . The receptionist Ashley is very kind and welcoming.
Kim Stumpf
Kim Stumpf
Jul 13, 2021
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Normally I am terrified of dentists. Dr. Lederer changed that for me. She is the kindest and most gentle soul. She doesn’t push things on you and gives very informed and knowledgeable advice. I briefly left her when we moved to Barrie. Now I just drive to Newmarket again for my appointments and I feel blessed she’s at the other end. Her staff are super efficient and friendly as well. I cannot recommend her highly enough. Thank you Dr. Lederer for everything. You are one in a million!
Amber Haighway
Amber Haighway
Mar 27, 2021
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100% the best dentist I’ve been to. Always keeps me fully apprised of what’s going on and talks me through the procedure. Very good if you’re nervous at the dentist. Also, have had two fillings with Dr. Lederer and literally didn’t feel a thing. Would recommend her to anyone looking for a dentist in the area. Staff is also great! Friendly, helpful, and always making things easy for the patient.
Aileen Gough
Aileen Gough
Mar 25, 2021
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Dr. Karen Lederer is the best , the dentist wasnt open and i called her off hours , due to having an abcess she gave me great advice and everything she advised me to do has helped so much , thank you Dr. Lederer
Sarah Young
Sarah Young
Jun 03, 2020
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Went to get a assessment regarding some cavities and a cleaning. Never had a more positive experience with any sort of dental practice. Samantha, my hygienist was kind, professional, and never caused me any pain even though I have numerous sensitivities around previous fillings. The dentist that saw me, Dr. Karen, was very comforting and reassuring in her plan of treatment. If I could give more than 5 stars I would!
Anna Wood
Anna Wood
Mar 07, 2020
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She is the sweetest Dentist that has ever been around. She is so attentive, she is kind sweet but keeps a professional manner. Her office is clean the staff are so sweet and she truly cares about her patients over and above. I thank her for her amazing 😉 job well done
Meagan Dier
Meagan Dier
Apr 30, 2018
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Karen made me feel very comfotable and provided very thorough exam, not to mention the massage chairs! Highly recommend!!
Sharon King
Sharon King
Jan 30, 2018
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We have been going to Karen for a few years now and she is the very best dentist I have ever had. What I love about her is that she was a nurse before she became a dentist. Like a lot of people I have had some unsettling experiences with the dentist. She quietly narrates what she is doing before and while she is doing any procedure which really keeps me calm. She consults me on everything, is very personable and kind. My kids love her too.
Fer Ph
Fer Ph
Jul 25, 2017
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Dr. Lederer and her team are the best in Newmarket! It has been more than 6 years that she is our family dentist. When I moved to Florida June last year I was very sad as I had to find a new dentist to keep my family smiling as we were used to. I was not lucky and unfortunately had a bad experience in Florida. When I went back to Canada for a quick visit 2 weeks ago I decided to stop by and check Dr. Lederer new location. I was impressed with the premises and the new technology she uses in her clinic.Everything is awesome and modern. It was Easter weekend and their schedule was completely full
Nicole Veenstra
Nicole Veenstra
Feb 07, 2017
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My kids love going to the dentist. The kid play centre was a big hit. Thank you Dr. Lederer and your wonderful staff for being so awesome!!
Morag Willcox
Morag Willcox
Jul 08, 2016
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Highly recommend Karen and her team at YES Dental, not only do I attend but I take my 90 year old mother there and the care and compassion they show is second to none. They are fair and give lots of options for treatment. Detailed descriptions and pro's and cons of the different options available are explained in detail and patiently. I am not a fan of dentist, but the bright cheery atmosphere and wonderful team make the visits much easier.
Samantha Black
Samantha Black
Dec 11, 2015
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Dr. Karen Lederer is a lovely lady. She works well with children and did a great job on my boys teeth.
Tammy Martin
Tammy Martin
May 15, 2014
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Dr. Karen is our family dentist and she is great with both of us and our children. She is very patients and talks to you throughout your appointment so you know exactly what she's doing and feel comfortable. I would highly recommend her!
Kat B.
Kat B.
Jan 03, 2014
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My 4 year old daughter was NOT going to a dentist. I explained to Dr. Karen her apprehension before our appointment and told her not to be offended if we have to leave before the appointment was complete. To my complete surprise, Dr Karen Lederer was able to finish checking her teeth and polish them with no issues. Her gentle way and calm demeanor was what did it! Thank You!