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I want to welcome you to the Mermaid Dental.....

I know that 'going to the dentist' can be a daunting idea for many. 


So, I wanted to create a relaxing and enjoyable space for your dentistry. As a result Mermaid Dental came alive. No judgement, no pressure and I am here to listen, understand and give my best professional opinion. You decide!

I am excited to meet YOU!                                                                          

Dr. Thanuja Kularatne ( Dr. K )

We are in love with the 'Mermaid Capitol of Texas' as you can tell from our name. We are excited to be here and serve this wonderful community. 

We provide Dentistry for all ages in San Marcos and the neighboring cities New Braunfels, Kyle, Buda, Austin, Seguin, Wimberley and Hunter. We provide high quality, affordable dentistry in a welcoming, relaxing environment. Our kind and compassionate team loves to see both kids and adults.

Our services include general dentistry, cosmetic dentistry, implant dentistry, emergency dentistry, root canal therapy, extractions & bone grafting, dentures, pediatric dentistry, invisalign/clear aligner therapy, gum disease treatments, periodontal therapy, smile design, teeth whitening, veneers, crowns & bridges and much more. 


We use newer and cutting edge technologies like iTero intraoral scanners, CBCT/cone beam technology/3D scanning, digital radiography, Zoom whitening, etc to help diagnose and better help our patients. Using our intraoral scanner, we can show how your new smile can look within few minutes. We have flat screen TVs and music for you to enjoy. Come visit us today!

Our comfortable and relaxing atmosphere will bring a smile to your face! 

Our Services


Routine Exams

Visit us today for an exam, get a wellness scan with our intraoral scanner and immediately see how your smile can be improved.

Invisalign/Clear Aligner Therapy

Immediately see your smile transformation with smile simulation of your scan. Get straight teeth, close gaps, improve your gum health and own a beautiful smile with aligner therapy. Please visit us today for a free consult to see if you are a good candidate for aligner theraphy.

Root Canal Therapy

In pain and needs a root canal to save the tooth? We can help you. A root canal will remove the infected tissue inside the tooth and restore the tooth back to health. 

Dental Hygiene

Receive prophylactic cleaning or gum therapy based on your periodontal evaluation. Visit us for a new patient or re-care appointment.

Kids Dentistry
Bring your kids and we will like to see them! We see all ages. Your child can watch cartoons while getting their teeth cleaned and treated. We love seeing the little kiddos!
Wisdom Teeth Pain
Wisdom teeth are hurting? Feeling pressure from wisdom teeth coming in. Maybe it is time for wisdom teeth evaluation. Come get your wisdom teeth evaluated.
Cosmetic Dentistry

Cosmetic dentistry can range from smile designing, teeth aligning, implants, veneers, crowns, tooth colored fillings, whitening to gum treatments. Whatever you have in mind we are ready to discuss all the options. 

Missing teeth and want dentures? Call us today for your appointment.

Missing teeth and want a fixed solution? We provide implant services from start to finish including implant placement to implant crown placement. 

Emergency Dentistry

In pain? Broke a tooth or have an infection? We can evaluate and extract or root canal treat or your tooth. Or maybe you only need a filling or crown. Call us now to be seen for an evaluation and treatment.

Dental Fillings, Crowns & Bridges

We perform tooth colored fillings, crowns and bridges to treat decay and replace missing teeth. Don't worry about those unsightly silver color fillings. We don't do them anymore!


Not happy about your smile? Want to improve color, shape or size of your teeth. Let's talk about how veneers can improve your smile. Please visit for your consultation today.

Want whiter, brighter smile? Let's discuss whitening! We have in-office zoom whitening and you can also get take home customized trays. Let us know how you like it.
Extractions & Bone Grafting

Having a tooth ache and needs a tooth extracted? Call us today and we will get you in right away or as soon as possible. We will also provide bone grafting/socket preservation to fill the extraction socket with bone material for better healing and socket preservation.

Nitrous Oxide Sedation

Nervous about your or your kids' treatment. We offer nitrous oxide (laughing gas) sedation to help calm your nerves and relax. Let us know if you want to consider this sedation.

Have a question about our services? Please call us and we are happy to answer!

Our Dentists



Dr. Kularatne, lovingly known as 'Dr. K' by her patients, obtained her Doctor of Dental Surgery (DDS) from the University of Southern California, Los Angeles. Dr. K is originally from Sri Lanka where she graduated with a degree in Bachelor of Dental Surgery. She has also obtained a MSc in Rehabilitation Counseling from the University of Medicine and Dentistry of New Jersey.


Dr. K is a personable, kind and a passionate dentist who enjoys working with people. She prides herself by making her patients happy and delivering the highest quality care for them. She loves taking continuing studies to keep her up to date on new dental advancements and travel regularly to take new courses. She is a member of the Academy of General Dentistry (AGD), the American Academy of Clear Aligners (AACA) and a fellow of the International Dental Implant Association (IDIA).


During her free time, she enjoys spending time with her husband and the daughter. She also enjoys reading, traveling and listening to music.


Dr. K would love to meet you!

"Dr. K"
Thanuja Kularatne DDS


Michelle is the first person to greet you when you walk into our practice. She is very welcoming and will make you at ease. She has been in the dental field for 8 years. She will help you understand your insurance information, make your appointments and coordinate your care. She also helps Dr. K whenever Dr. K needs some extra help with assisting.

Michelle is a native Texan and lives in New Braunfels. Michelle's husband is serving the country and she loves spending time with her husband and her son. She is very friendly, fun and always cheerful. Michelle is excited to meet you and welcome you to our practice!

Michelle Shaffer


Treatment Coordinator

Raylynn Cunningham, RDA

Registered Dental Assistant

Raylynn is our wonderful assistant and she has four years of experience in the dental field. She is very friendly, kind and  knowledgeable. She loves making sure our patients have a pleasant and comfortable experience at Mermaid Dental.  


Raylynn is a native Texan and lives in San Marcos with her two kids and her husband. She loves spending time at the park with her kids and trying new food when she gets time. She is very happy to help Dr. K with taking care of our amazing patients. 

Proud Member Of

Invisalign Clear Aligner Provider for orthodontics, teeth movement, teeth straightening, smile design, intraoral scanner, itero

Success Stories


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Opening Hours

Monday – Friday  9AM – 5PM


Saturday & Sunday by appointment only


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