Bellevue Pediatric Dentistry
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Bellevue Pediatric Dentistry
Our office is committed to supporting you and your child with the tools needed to give your child a positive experience for current and future dental visits. Our practice specializes in dentistry for children. We believe that kids are special. Dr. Dorothy Nelson attended UW and then attended the UW School of Dentistry shortly after and graduated in.

Dr. Cody Mast attended Willamette University in Oregon, where he graduated with a German major and economics minor. Dr. Jenny Lee attended Andrews University in Michigan and continued her education in Loma Linda University for Dental.
Services
We believe every child should be treated the way we would like our own children treated. It is our goal to implement the highest standard of care at every patient encounter whether it is a child's first visit to the dental office, a teenager who is headed off to college or a special-needs adult patient we've been seeing for decades.
Lonnie began in 1990 in the dental field. Her scheduling expertise will ensure you have an "outstanding" experience with our office. She is often the first voice you hear when you enter our office and her laugh can likely be heard for miles. Lonnie's contagious energy will often get kids to dance and sing for their appointments.
Many parents will call and ask when their child should first see the dentist. According to the American Academy of Pediatric Dentistry, a child's first visit to the dentist should be no later than 6 months after the eruption of the first tooth. This is a relatively new concept in dentistry, but research has shown that an ounce of prevention will help prevent a pound of problems.
These are the "fillings" which go into the teeth once all of the decay is removed or a traumatized tooth is repaired. They are tooth-colored and are bonded to the prepared tooth surface. Silver fillings, or amalgam fillings, are only very rarely used in our office on a case-by-case basis. Different materials have different strengths and weaknesses, and for the overwhelming majority of the time, the tooth-colored fillings will work fine.
Sealants are typically placed on molars with deep pits and grooves. These molars are at higher risk for getting cavities because the anatomy of the grooves allows for bacteria and carbohydrates to get packed down into them. Sealing a tooth is analogous to caulking your bathtub, where the grooves are filled in with a hard, white material that leaves the tooth feeling smooth.
Reviews (17)
Rebekah Binns
Rebekah Binns
Dec 17, 2021
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Bellevue Kids Dentist worked hard to get us seen by Dr. Dorothy Nelson when our baby needed his lip, tongue, and buccal ties released. Lonnie at the front desk was very friendly and got us scheduled off the wait-list, and Dr. Dorothy is very kind, knowledgeable and skilled. We feel so lucky to have worked with them for our baby's releases and would highly recommend them to anybody looking for lip/tongue/buccal tie revisions for their newborns.
Allison Welsh
Allison Welsh
Dec 15, 2021
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I was a patient of the original Dr. Mast, and was so excited to take my children to the practice. So great
Thiemo Kessel
Thiemo Kessel
Nov 29, 2021
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Very friendly. Very efficient.
Received the information and explanation I asked for.
Kids were happy as well. They likedt he athmosphere there and the treat afterwards!
Dan Hu
Dan Hu
Oct 25, 2021
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Dr. Dorothy was a true angel to our rescue when she came to office after 7:30pm and did a two hr surgery for us especially on a day when she had busy family events. She has also followed up with us diligently to make sure that our daughter recovers well. Our family are truly grateful for having Dr. Dorothy.
Sally Boyce
Sally Boyce
Sep 05, 2021
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Do not allow your children to attend this office!!! We decided to switch offices after our long time dentist was often booked months in advance. With a tween and teenager who had never had any dentistry needs or cavities we felt confident that this office would be an acceptable option; considering so many in the area are not accepting new patients. However we went to the initial visit and were told our son’s teeth were great and we should come back just to get sealants on the back molars. When our 13 year old son attended this second appointment they ended up drilling his teeth, filling not present
Brianna Brodniak
Brianna Brodniak
Aug 31, 2021
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Bellevue Kids Dentist is a lovely office that always makes us feel like family. Every member of their team is stellar. We've gone there for ages now and are always greeted with warmth and have an enjoyable experience!
Jessica Coates
Jessica Coates
Jul 22, 2021
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Doctor Dorothy was so patient with my very apprehensive toddler. After some discussions on teeth and cars it was done! This place has it down. Great pediatric advice and now my son can’t wait to go back.
Awesome Wonderful
Awesome Wonderful
Jun 29, 2021
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My kids love the office, and I love Dr.Nelson. The staff is friendly, my kids enjoy checking out the fish in the aquarium, being able to watch a movie during the cleaning, and the "gold" coin with prize at the end. The hygienist and Dr.Nelson are gentle and skilled. Easy to recommend Dr.Nelson and Bellevue Kids Dentist to any parent.
Vineetha Bharath
Vineetha Bharath
Jun 15, 2021
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It was my son's first visit to the dentist and it was so easy and comfortable. The staffs are good. Clinic is very clean and good atmosphere. The checkup was done quickly. Overall happy with the visit.
Elena Pop
Elena Pop
Jun 13, 2021
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We are going to this office for 10 years now, with both kids. They are awesome! Dr.Cody and Dr. Dorothy are amazing! Lonni from reception desk always smiling and helpful with scheduling appointments and make us feel supper comfortable! Highly recommended!
Quiana Immaboss Moore
Quiana Immaboss Moore
Apr 28, 2021
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This facility is amazing. The staff are beyond friendly and helpful. These people actually enjoy their job and the children.
Katrina Nye
Katrina Nye
Feb 26, 2021
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Staff is really gentle and professional. My boys are sensitive and everyone always makes them feel welcome. Highly recommend them!
Phuong Bui
Phuong Bui
Feb 23, 2021
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Friendly, clean , all my kids they love to go there all the staff they very nice....thank you for taking care to my kids teeth.... I
Brianna Brodniak
Brianna Brodniak
Feb 12, 2021
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Bellevue Kids Dentist exceeds our expectations every time. Super clean, compassionate and thorough and really do make it pleasant and fun for my 14 year old. Thanks Dr. Cody Mast and crew!
Caryl BeastMode Forbes
Caryl BeastMode Forbes
Sep 24, 2020
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We were in and out quickly. Always thorough and gentle. Plenty of spacing between patients, too.
Kay Tesla
Kay Tesla
Jan 03, 2020
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We drive down from Bothell for them. They have always taken care of us with kindness and respect. I highly recommend them for anyone, but especially those who have other health issues. They work hard to adapt to your needs.
Rebecca Bockow
Rebecca Bockow
Nov 08, 2019
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The entire team at Bellevue Kids Dentist took such great care of my two girls. From the moment we walked in the door, the staff made my girls feel welcomed. Dr Nelson and her staff took the time to explain everything to my two girls and made sure they were comfortable. Dr Nelson took the time to look not just at their teeth but to also ask about their oral habits, diet, and sleep quality. She is really looking at the whole child and whole body health, not just focusing on the teeth. This is a great team and a great dentist!!! 🤩