Rosemont Smile Dental
Miyoung Yoon, DDS:
Practice Profile Page


Rosemont Smile Dental
Miyoung Yoon, DDS
La Crescenta-Montrose, CA













A list of major dental treatments which I offer my patients:

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Pediatric dental care

Porcelain veneers

Teeth whitening

Dentures & partials

Root canal treatment

Tooth extraction

TMJ treatment

Dental implants


Offers Even28 at-home™? No

Offers Even28 at-dentist™? No

Offers Invisalign®? Yes


Monday: 9:00 am to 5:00 pm

Tuesday: 10:00 am to 6:00 pm

Wednesday: Closed

Thursday: 10:00 am to 6:00 pm

Friday: 8:30 am to 3:00 pm

Saturday: 8:00 am to 4:00 pm (by appointment only)

Sunday: Closed





Check out what some of our happy patients are saying about us:

Nicole S. from Los Angeles, CA (Source: Yelp)


Without a doubt the kindest, most efficient dental office I’ve ever visited. Everyone from the front desk to Dr. Yoon herself. Every visit Dr. Yoon went out of her way to make me comfortable and explain options. She takes time to answer any questions. And considers your best health as well as any insurance or financial concerns. Scheduling is super easy with text reminders/confirmation. I’ve already recommended Dr. Yoon to friends. If I’m lucky enough to have my own family in this area someday, I look forward to taking them with me to Rosemont Smile.

Vahe Baghdasarian (Source: Google)


An amazing super clean clinic using the most advanced and up to date equipment. It is is being handled by a team full of professional, friendly, and nice people under the leadership of incredible, amazing and trustworthy Dr. Yoon. Dr. Yoon and her entire team including her amazing assistant Sevana, truly care about you and your health and they would go an extra mile if necessary just to make sure you are getting the best possible help. They will not stop working on your teeth until they get the best result. Time is meaningless when you are under their care. If necessary, they will re-schedule all their patients for the rest of the day and will keep working on your teeth until they get the anticipated result. Based on my personal experience, I highly highly highly recommend this place to anyone like me who always feels uncomfortable to go to a dentist. Thank you Dr. Yoon and Thank you Rosemont Smile Dental Team.

Nicole S. from Los Angeles, CA (Source: Yelp)


This was the cleanest dental office I have ever been to.   I felt that every precaution had been taken in these uncertain times.  I’m a new patient, just in for an exam and cleaning. Dr. Yoon is thorough with a lovely demeanor.  She is firm but not pushy in her advice.  I’m very happy to have found such a wonderful office.

George Yoon (Source: Google)


FREE PARKING!!! Hallelujah this was a big plus and very rare here in LA. The location is awesome! It’s in the Marketplace mall where they have everything from Starbucks to a Rite Aid. The staff was really friendly and professional that made me feel very comfortable during my visit. The office is gorgeous and super clean with plenty of good lighting and they have a TV and large fridge with free water. Making an appointment was super easy thru their website, they have all the forms you can download, print and fill out before your appointment. Dr. Yoon is by far the best dentist that I have ever gone to, she is very courteous and very professional. I had a deep root cleaning and had a very good experience with no pain after the procedure, that was really important to me because in the past my gums where always really sore with other dentists. After the procedure she provided a very detailed consultation that included instructions on how to better care for my teeth and pointed out several problem I wasn’t aware of. My quest for finding a dentist has finally ended! I live almost a half hour away but it’s worth it, I’m so happy to have a great dentist FINALLY!

Jenny J. from Glendale, CA (Source: Yelp)


I had to make an appointment as soon as possible because of my toothache. The receptionists, assistants, and the doctor have all been very kind and comforting. I haven’t felt so reassured after going to a dentist, and I was very happy that they have also suggested future preventative solutions in consideration of my current financial situation. I would definitely recommend this dental to anyone.

Jenny Jang (Source: Google)


Both the receptionists, assistants, and the doctor have been extremely courteous, kind, and professional. Went in for a tooth ache and I have never received such care that makes me feel so comfortable. Dentists are not the most exciting places to go, but this dental definitely makes you feel more reassured.

Angie (Source: Facebook)


Love everything about this practice. Jai at the front desk is lovely and helpful. They take great care to stay safe during the pandemic. The office is very comfortable and clean and Dr. Yoon and her staff are incredibly caring, communicative, gentle and do great work.

Victoria Simon (Source: Google)


I recently needed a new dentist and came across Rosemont Smile Dental online. I went in for a cleaning and was very happy with my experience. I usually hate going to the dentist but Dr. Yoon and her staff make you feel really comfortable. She constantly asked if I was in pain and helped answer any questions I had. I also got new retainers from them that came out perfectly. The new technology and equipment they have is also very impressive.

Parker Ray (Source: Google)


Without a doubt the kindest, most efficient dental office I’ve ever visited. Everyone from the front desk to Dr. Yoon herself. Every visit Dr. Yoon went out of her way to make me comfortable and explain options. She takes time to answer any questions. And considers your best health as well as any insurance or financial concerns. Scheduling is super easy with text reminders/confirmation. I’ve already recommended Dr. Yoon to friends. If I’m lucky enough to have my own family in this area someday, I look forward to taking them with me to Rosemont Smile.

Erica C. from Hollywood, Los Angeles, CA (Source: Yelp)


Dr. Yoon is so nice and professional. I have extremely sensitive teeth and I’ve always had a problem with going to the dentist especially whenever I have to have some cavity taken care of. Dr. Yoon was very nice and funny about the whole situation and it really made me relax and feel better about it also she worked super fast and made it as comfortable as possible for me. I would totally recommend her she is the best in La Crescenta five stars for sure.

Cat L. from La Crescenta-Montrose, CA (Source: Yelp)


Great experience. I was almost two hours in the chair replacing two ancient metal fillings and it went great! Dr. Yoon thought I might be sensitive to hot and cold on one of them from now on but that isn’t the case. I am new to the area and I am very happy to have found Dr. Yoon and her staff. Today, they fitted me for the nightguard they had taken a mold for after the dental work was completed and it is very comfortable.

Robin Toma (Source: Google)


I needed some expert advice about a dental issue/crisis of sorts, so I saw a flyer about this place and Dr. Yoon, and decided to take a chance. Gabby at the front desk was really nice and capable, and Dr. Yoon, the dentist, has really impressed me with her personable manner, and even more so with her professionalism, caring attitude, and responsiveness. She explained things very well and has taken seriously all my questions. And their location is great and the office suite is very clean and modern. I’ve only seen her once, but I’m already referring my wife and mother in law to her.

Julio Balderas (Source: Google)


Dr. Yoon is the best! I have serious issues with my teeth sometimes and I’m extremely sensitive even when I’m numb. She went ahead and made everything easy relaxing and fast. She is the fastest anyone has ever taken care of my teeth and she did a fantastic job everything was perfect totally recommend.

Susan B. from Gardena, CA (Source: Yelp)


I am so happy to have found Dr. Mia Yoon. It’s very hard to find a dentist that you can trust and that makes you feel comfortable. Especially when you are one of those patients whose had a bad experience and/or a visit to a dentist is just nerve-wracking. She is very professional and friendly and so is her staff. She is so informative- I love that about her! Super clean space and so high tech!!! I love the fact that I can schedule an appointment over the weekend and it’s not over crowded with patients. She is no where near me, I drive 45 min to her location – I think that, just said it all See you soon Dr!!

Anita Belokopytova (Source: Google)


This dental office puts others to shame. I have yet to see an office any more professional and knowledgeable than this one. They meddle in your dirty teeth, yet keep their wits and great customer service at top level. The assistant, Sevana, is the best. She always know what to do. Gabby is very helpful with paperwork and all. And Dr. Yoon is so professional, it’s beyond understanding. She told me straight up when she was putting my crown: “I can leave it like that, but I want to make sure it’s perfect. I mean, it will do, but in my opinion, it needs to be better, so we have to wait until the lab gets it absolutely right”. And we waited, but it was all worth it. Thank you very much.

Katrin Costa (Source: Google)


Wow. This place is amazing! Can’t say enough good things to express my experiences there today. A dentist app. For me was long overdue and even with 2 out of 3 kids in tow my experience was unbelievably pleasant. Not that I recommend bringing children to a long dentist app. This office was fully loaded to entertain clients and their children alike. They had TVs, water, toys, and most importantly a friendly welcoming and patient staff. The doctor was extremely patient, thorough and kind. I will def. be visiting this office again and telling family and friends to do the same. I highly recommend this office to anyone who wants exceptional service. They are professional, kind, and welcoming. Love this place!.


I have been practicing general dentistry after graduating from the State University of New York at Buffalo, School of Dental Medicine, and completing my residency in the Advanced Education in General Dentistry (AEGD) at the University at Buffalo, School of Dental Medicine. My family and I relocated from New York to Crescenta Valley a few years ago when my husband accepted a job offer from NASA's Jet Propulsion Laboratory (JPL). My kids are attending Rosemont Middle school and Cresenta Valley High School, and It’s been a joy to treat fellow members of the Foothill community. I am also passionate about educating students. Since 2017 I have been an adjunct clinical professor at the College of Dental Medicine at Western University of Health Sciences, and at the University at Buffalo, School of Dental Medicine from 2012 to 2016. I am a member of the American Dental Association, Academy of General Dentistry, California Dental Association, San Fernando Valley Dental Society and the Korean-American Dental Association. Whether you need a comprehensive exam with dental x-rays and a thorough cleaning, or are suffering from a sudden toothache, we are here to respond to all dental needs for the whole family. Our focus is preventive and minimally-invasive dentistry that preserves as much as possible a person’s natural teeth. We offer one-on-one personalized care with a commitment to strong doctor-patient relationships based on trust. In addition to the services you may expect from a general dentist, such as regular check-ups and cleanings, fillings, crowns, root canal therapy, and extractions, we offer cosmetic dentistry, Invisalign, in-office/take-home whitening, white spots removal, no-drilling cavity fillings and more. Come visit our office and let us welcome you with a Rosemont Smile!