Knoxville Smiles at Malone & Costa Dentistry
Michael Costa, DDS:
Practice Profile Page


Knoxville Smiles at Malone & Costa Dentistry
Michael J. Costa, Jr., DDS, MHA
Knoxville, TN













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

Dental cleaning

White fillings


Inlays & onlays


Clear aligners

Sedation dentistry

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

Offers ClearCorrect™? Yes


Monday: 7:00 am to 3:00 pm

Tuesday: 7:00 am to 4:00 pm

Wednesday: 7:00 am to 4:00 pm

Thursday: 7:00 am to 4:00 pm

Friday: 7:00 am to 3:00 pm

Saturday: Closed

Sunday: Closed





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

Jill B. from Knoxville, TN (Source: Yelp)


Dr Costa and Staff are all amazing! From the time you walk in, to your cleaning, x-rays, dental work, and even financial aspect was smooth and pleasant.  You can’t say THAT about many dental experiences. You can tell the staff genuinely care and are happy!  Thank you for making a believer out of me, I’ve avoided the dentist for years ridden with anxiety from past experiences.  You guys are AWESOME!

Jill Barbour (Source: Google)


Dr Costa and Staff are all amazing! From the time you walk in, to your cleaning, x-rays, dental work, and even financial aspect was smooth and pleasant. You can’t say THAT about many dental experiences. You can tell the staff genuinely care and are happy! Thank you for making a believer out of me, I’ve avoided the dentist for years ridden with anxiety from past experiences. You guys are AWESOME!

Beth D. from Silver Lake, Los Angeles, CA (Source: Yelp)


From  the moment I called to make an appointment to the warm welcome when I arrived at the office today, I got the warmest welcome and the feeling everyone cared so much for their patients. The office staff and hygienists and providers really know how to do it right. Best staff and the best care I have ever had. I highly recommend Knoxville Smiles! Definitely 5 star service. I am grateful I found them. I am new to Tennessee. Thank You so much.

Jill Gray Barbour (Source: Facebook)


Dr Costa and Staff are all amazing! From the time you walk in, to your cleaning, x-rays, dental work, and even financial aspect was smooth and pleasant. You can’t say THAT about many dental experiences. You can tell the staff genuinely care and are happy! Thank you for making a believer out of me, I’ve avoided the dentist for years ridden with anxiety from past experiences. You guys are AWESOME!

Dan G. (Source: Google)


All I can say is WOW! I have been afraid to go to the dentist my whole life, but this place eliminated that fear. I will be going to this dentist office from now on. The whole staff there Is EXCELLENT and Isabella was absolutely Awesome. I HIGHLY recommend this place to anyone who has ever been afraid to go to the dentist. These people will definitely take care of you real well, Thank you everyone at Knoxville smiles! Your work has been GREATLY APPRECIATED!

Pamela P. from Knoxville, TN (Source: Yelp)


I had a routine check up on July 23, 2020 with Izabella, a hygienist at Dr. Stephen Malone and Dr. Michael Costa’s office.  When I visit their office every 4 months, my visit includes checking for gum disease, and Izabella handles that VERY quickly and proficiently!!  Izabella compliments me regarding keeping my teeth clean, and she keeps me informed if I have any issues with my gums or teeth.  This last visit I had another Dr. appt. after my dental appt. and Izabella finished with me within 45 min. with 15 minutes to spare.  I have nothing but praise for the entire office staff – I am VERY pleased!!!!

Josh V. from Lenoir City, TN (Source: Yelp)


Hands down was the best dentist office I have ever been to. Everyone here made us feel right at home and comfortable. They are very modern and up to date which made the process easier. I would highly recommend Knoxville Smiles to anyone one needs dental work done! Kimberly was the best because I had her as my hygienist and just because she was awesome!

Jessica Foster (Source: Google)


We found this dental care facility online by doing a Google search for dentists in the Knoxville area and decided to schedule and appointment after reading several positive reviews. I had a great experience with Dr. Malone (and Dr. Costa). He was very attentive and thorough, explaining details very clearly and he made sure I understood everything he was saying. The dental assistant I saw was also very helpful (Missy). The front office staff members were very personable and friendly. Overall, Knox Smiles had a very positive, welcoming, and professional atmosphere during my visit. I definitely recommend this office to anyone on the market for a new dentist!

Brennan Barger (Source: Google)


Dr Costa and staff are all amazing. I’ve been twice now, once for a cleaning and again for a difficult filing that was done excellently. It’s been a few years since my last dentist visit with moving city to city but the team made me feel at home and without judgment. Jessica did my cleaning and was excellent, had great hygiene advice and even came to check up on me a week later during my filing. Shout outs to Lauren, Wendy, and Shauna as well for being so nice and welcoming. Can not recommend this office and staff enough.

T. Stanley (Source: Google)


I just had my first experience with Knoxville Smiles. I was nothing but impressed with the whole experience. The facility is nice and clean. The front staff are very friendly and helpful. My hygienist was great and made extra sure that my teeth whitening process was painless and very effective. I was extremely satisfied with my results and I will be coming back to them for any future dental needs.

Patt Paul (Source: Google)


I had an emergency dental situation. The office is not due to reopen until May 1st. The front office staff and Dr. Costa got me in ASAP, called and sent texts. They were very accomadating. It was my 1st time there and it was a wonderful experience. My daughter goes there, sees Dr. Malone, and she always raves about her experience in the office. I can’t thank them enough for coming to my rescue!! It is a great team!! We have found a dental home and I am so thankful!!

Janice Stamper (Source: Google)


I had my first visit today as a new patient, and everyone in the office was so professional, very friendly, and welcoming. They make you feel right at home. Dr. Costa was knowledgeable and very informative. He actually listened to my concerns as well. The entire office was very up-to-date with modern equipment and it has such a pleasant environment. I had a great experience, and for the first time I can say I will definitely be back regularly! I highly recommend them, you won’t regret going here.

Kelsey Brantley (Source: Google)


I had lost a filling and a portion of a tooth and Dr. Costa got me in as soon as state guidelines would allow. He and Lauren were both knowledgeable and so understanding of my dental anxiety. I would recommend Dr. Costa and the team at Knoxville Smiles for any dental work you may need. Caring, top notch dental procedures, and friendly staff that always goes above and beyond. I left with a repaired tooth and a treatment plan to help preserve the integrity of my teeth.

Kate del Solar (Source: Google)


Dr. Costa, Lauren and the Knoxville Smiles staff were extremely welcoming for my visit to their practice. Throughout the visit, I was treated with kindness and they provided insight into all aspects of the treatment process. Most impressive was their willingness to listen to my concerns and input on future treatments. They also introduced me to Dr. Malone for a mini consult. It is very obvious that the Knoxville Smiles staff is a cohesive unit who truly emphasizes in delivering the highest quality care to their patients.

Captain Robo Murray (Source: Google)


I just finished my dental cleaning at the office of Drs. Malone and Costa. Now, normally, any trip to the dentist fills me with dread. Luckily for me, Izabela did my cleaning and it was the least stressful experience imaginable. Izabela was not only gentle and thorough, but also extremely reassuring. I also know I’m not the easiest patient to deal with, but she was understanding and very patient with me. Dr. Costa came up with an effective Plan to treat my dental problems and made sure it was fair financially. Even the front desk staff was extra friendly and helpful. So, anybody who is nervous about the dentist, give Knoxville Smiles a call. You won’t be disappointed.

Cody Grish (Source: Google)


Dr. Costa & his staff were awesome! They worked with me to develop a plan to reach my best oral health. Dr. Costa advised me while also taking my opinions and concerns into consideration when evaluating my individual situation. Jade & lauren were also super helpful and informative while making me feel comfortable throughout the entire process! Highly recommend !

Linda Backer (Source: Google)


I needed a great deal of dental care with extractions etc. Dr. Costa made me feel so comfortable and at ease. I was able to bring my dog, “Smokey” into the office and he sat on my lap during the extractions. “Who does that?”. Now Smokey goes in every time I need dental care and the staff comes in to say hi to him too. Best, best, best experience ever! Going to the dentist is still difficult for me but I don’t hate it now. Smokey and I love the staff and Dr. Costa.

Cindy (Source: Google)


Dr Costa & Dr Malone have both treated me with nothing but kindness and compassion. They’re both very thorough and talk you thru each procedure. Dr Costa has been able to do my clear braces and one root canal…he has been very patient and kind through out the process. Isabella and Jade have both done the cleanings for myself and my family. They too are top notch. I would highly recommend this group

Nicole Whitlock (Source: Google)


I went to Knoxville Smiles (after doing some researching and reading reviews) for a bleaching and it was amazing! I told the dental assistant how some of my teeth were a little short and she told me they could actually fix that without veneers! So a few appointments later I have larger big white teeth. I can’t say enough good things about my entire experience. They also pushed to get me in before my wedding. (As a new client too ♡). They are absolutely amazing and Dr.Malone is the BEST. My only regret is not going to him sooner!!!

Pamela P. from SoMa, San Francisco, CA (Source: Yelp)


I had two concerns when I went for my routine dental cleaning May 24, 2021. My gums were bleeding in a couple of areas and I had an uncomfortable area in my mouth when chewing. The dentist wasn’t available at that visit, but Izabela Atwell was able to solve the bleeding problem by identifying my medication history linked to dry mouth. Izabela also later asked the dentist about my second concern regarding the uncomfortable chewing area in my mouth and called me back with information. I wanted to praise Dr. Malone, Dr. Costa, and Izabela for having a caring, cautious, and sincere attitude about my medical and dental health. From reading other reviews, I am confident that God has blessed your entire dental team! Hats off to you!!!! Pamela Pennington

Brick B. from Knoxville, TN (Source: Yelp)


Was extremely nervous being my first visit to here. I would normally rather be in pain then see a dentist, this time though I was in a bad way. My wait to get into the exam room was less than five minutes. They had me in the x-ray machine in another five minutes. Very short wait for the doctor to come in, almost immediately had stress level down to nothing. By the time I left I’m actually excited to get my work done, and have a healthy mouth for the first time in decades. There are a lot of great dentists out there I’m sure, but if you are a big fraidy cat like me. This should be your first and last stop.

Dina Huffaker Stulting (Source: Facebook)


Dr. Costa and his team are awesome. From the time you walk in the door until you leave, you are treated with kindness and respect. Everyone is always smiling, friendly and professional. The office is always clean and the chairs are comfortable. I take my 78 year old mother there and they are so good with her. Thank you!

Ashley Taft (Source: Google)


An experience on another level, Knoxville Smiles is by far the most pleasant dental office I’ve been to. Not at all what you have in mind when you think of going to get your teeth cleaned. Dr. Costa and Dr. Malone have the most up-to-date equipment (from my ignorant POV, haha, but still…) and actually travel to teach others dental-related stuff. Not only that, customer service is 100% a priority. They offered chapstick, blankets, water, and they have TVs on the ceiling so you can attempt to distract yourself from getting your teeth flossed by another person. I will literally never go to another dentist.

Tyler B. from San Francisco, CA (Source: Yelp)


This office is fantastic! They treated me like a person and not just a set of teeth or a walking dollar sign. They were 100% transparent with me regarding my treatment and any fees. Anyone who says differently is obviously on a witch hunt and has something personal against this amazing office. I felt so comfortable and like a part of a big family. Don’t go anywhere else for your dental care!

Mary W. from Knoxville, TN (Source: Yelp)


So who can say they like going to the dentist? This practice makes you feel comfortable for those not so pleasant experiences. Now let me tell you, I have enough dental work done in the past that I could make a down payment in a house, so I’m not a newbie to dental work. Friendly, fun, caring staff, who are great at what they do and I would recommend them to anyone!

Lori M. from Atlanta, GA (Source: Yelp)


Wow. Great experience. I lost a crown while waiting on an implant. I came in at 7:30 toothless and was back out by 8:15 with a new temporary crown with a power T for Tennessee imprinted on the temporary tooth. It looked great. It was perfect for the first home football game. Dr Malone’s passion and expertise is unmatched!!!!

Madi F. from Tennessee (Source: Yelp)


I see Jade for my teeth cleanings and I love her! She is very knowledgeable and always teaches me something new. Everyone I have seen here is great too! I like to be educated on WHY things are wrong with my teeth so I can understand. Most places just tell you what you need done and that’s what makes it feel like they just want your money. But not here! They tell you what is wrong and what needs to be done. It IS expensive, but at least they make you understand why! Love this place and the atmosphere, I would definitely recommend!

Sheila Debault Brown (Source: Google)


I have had a new patient appointment as well as a new ortho client. The staff here have been very accommodating with my schedule as I am a travel nurse. Always polite, friendly and available. Prompt return calls and greeted with a smile. Great office and the dentists are very knowledgeable and consult each other for the best possible outcome for their patients. Highly recommend.

Qui Jones (Source: Google)


I was searching for a dentist office near me when I came across this place. After reading the reviews I gave them a call to set up an appointment. The staff is super friendly and helpful and the entire atmosphere of this place is warming and welcoming. I saw Dr. Costa and he made sure I understood everything that was going on and what he was going to do to fix it. He and the assistant talked me through all the steps and made sure I was comfortable. From the ladies you meet when you come through the door, to the assistants, to the doctors, this group is nothing short of extraordinary! You won’t want to go anywhere else!

Josue Villareal (Source: Google)


Hands down was the best dentist office I have ever been to. Everyone here made us feel right at home and comfortable. They are very modern and up to date which made the process easier. I would highly recommend Knoxville Smiles to anyone one needs dental work done! Kimberly was the best because I had her as my hygienist and just because she was awesome!

Anonymous (Source: Google)


Always a great experience at Knoxville Smiles with Dr Costa and Kimberly! They are prompt, so friendly and seem to really value your dental business. Kimberly has been my hygienist several times. She is so awesome! Dr Costa is awesome as well! Their equipment is amazing, showing you exactly what they are working on in your mouth on the overhead equipment and cameras used. Top notch place!

Ericha Lane (Source: Google)


I’ve always had great experiences here. They are gentle and really care about oral health and educating patients on oral care. I started out with several issues and they make care plans and adjust them as needed to fit my dental needs and meet me where I am (availability, insurance, financial, just life mishaps). I’ve always been tended to within moments of my appointment time, if not sooner. Also, they’ve got somee pretty cool equipment and technology that makes the visit fun or relaxing, whichever you’re looking for.

Chris Coker (Source: Google)


Dr. Costa and his dental assistant Ezra are both amazing! I hadn’t been to the dentist in several years and I was full of anxiety when I arrived, but Ezra immediately made me feel better with her calm and soothing demeanor. Dr. Costa was extremely knowledgeable, but not in a stiff way, he’s actually very charming and laid back which made me instantly feel at ease. He talked me through the whole process, which was much quicker and far less painful than I was expecting. The whole staff was very friendly and I felt like they truly cared about me and what’s best for my dental health. They’re keepers!

Sofie Bell (Source: Google)


When my usual dentist could not get me in for over a month to fix my broken molar, I called Malone Dentistry and they got me in that day! Their front staff we’re super friendly! I saw Erin Noble, she and her dental assistant were also super friendly, did a great job of telling me what to expect, gentle, I felt no pain as my tooth was fixed same day.! I think my family has found a new dentist home! Totally recommend them to anyone!

Sam Williams (Source: Google)


I have been afraid of the dentist my whole life and was nervous about my appointment today. Luckily, everyone was extremely nice and I was greeted as soon as I came into the building. Shannon was very easy to talk to and made my visit a memorable one. I left with some nice sunglasses & a goody bag too! I love everyone in this place & appreciate the work they do to keep everyone happy. 20/10 recommend this place to everyone! I am no longer afraid to go to the dentist as long as I’m going to Knoxville Smiles!


Michael J. Costa, Jr., D.D.S., M.H.A., is originally from New Jersey and has enjoyed moving progressively further south over the last 15 years. He attended the George Washington University in Washington, DC, where he received his Bachelors in Public Health. Simultaneously he worked as a volunteer paramedic in southern Maryland. Dr. Costa continued his higher education at the UNC Gillings School of Global Public Health in Chapel Hill, NC, where he received his Masters in Healthcare Administration (M.H.A.) degree. After graduate school, he stayed in Chapel Hill (Go Heels!) to study dentistry at the UNC School of Dentistry. where he received his Doctorate of Dental Surgery (D.D.S.) degree in 2014. After dental school, Dr. Costa decided to further expand his dental skills by completing an Advanced Education in General Dentistry at Camp Lejeune, NC where he also served as an active duty Naval Dental Officer and provided dental services to thousands of Marines and Sailors. During and after military service, Dr. Costa worked as the lead dentist in a large group practice in Wilmington, NC. As the sole provider in a large satellite practice, he offered a wide scope of dental procedures to a diverse population with a heavy emphasis on oral surgery and replacing missing teeth with dental implants, bone grafting procedures, and implant supported dentures. Dr. Costa prides himself on making patients feel very comfortable and at ease during surgical procedures. You will be treated as a special individual, deserving of the best experience. With knowledge and skill, he will take appropriate measures to relieve anxiety and ensure your treatment is pain free. Dr. Costa strongly believes in continuing education so that he can offer his patients the best possible treatment available. He recently completed the Augusta University Comprehensive Training in Implant Dentistry Course, and he’s currently working on becoming an Associate Fellow of the American Academy of Implant Dentistry. Dr. Costa is a member of multiple dental societies including the American Dental Association, Academy of Oral Implantology, American Academy of Implant Dentistry, Tennessee Dental Association and 2nd District Dental Society. Dr. Costa is also passionate about sharing his love of dentistry with patients and other dentists. You can follow his dental work on Instagram @costadds and his personal adventures @mjcostajr. Dr. Costa enjoys consulting with and mentoring other dentists on advanced surgical procedures. He maintains a constant dialog with dentists and surgeons across the country for instant consultations and provides second opinions to many other dentists. While not working, Dr. Costa enjoys Crossfit, running, hiking and staying active. He’s a fan of Apple, Tesla and Dentistry. He enjoys spending time with his family and the family’s dogs.