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All TreatmentsCarrer del Vint-I-Sis de Gener 1641, 46, Baixos, Barcelona, Spain
Dental Clinic Sonríe is a comprehensive dental practice located in Barcelona's Sants-Montjuïc district, dedicated to creating beautiful, healthy, happy smiles through specialized, technology-driven treatment. Founded and directed by Dra. Adriana Castejón and Prof. Dr. Miguel Merino Arends, Dental Clinic Sonríe combines aesthetic expertise with orthodontic specialization and advanced prosthodontic capabilities. The clinic's philosophy centers on comprehensive oral healthcare that integrates multiple dental disciplines to achieve superior outcomes for Barcelona patients. With state-of-the-art equipment and materials, Dental Clinic Sonríe represents a premier choice for patients seeking comprehensive, specialized dental care in Barcelona.
Dental Clinic Sonríe distinguishes itself through a commitment to creating perfect, healthy, and joyful smiles—not just fixing teeth, but transforming smiles and lives. The clinic's leadership, including Prof. Dr. Miguel Merino Arends who trained internationally at North Carolina University in the United States, brings world-class expertise to Barcelona. The team at Dental Clinic Sonríe in Barcelona understands that smile transformation requires integration of aesthetics, function, health, and patient satisfaction. This comprehensive perspective shapes every aspect of treatment at Dental Clinic Sonríe.
Dental Clinic Sonríe offers comprehensive dental services across multiple specialties, with particular distinction in orthodontics and aesthetic dentistry. Invisible lingual orthodontics represents a signature specialty at Dental Clinic Sonríe. Using German-engineered WIN (Winning Invisible Braces) technology, the clinic provides completely invisible teeth alignment—braces positioned on the internal surface of teeth where they remain undetectable. This revolutionary approach appeals to professional adults and image-conscious patients in Barcelona seeking teeth alignment without the visibility of conventional braces.
The WIN Brackets system at Dental Clinic Sonríe in Barcelona enables rapid, precise, and efficient tooth movements customized for each patient. The German engineering excellence backing the system ensures superior results compared to other lingual orthodontic approaches. Patients in Barcelona benefit from Dr. Merino Arends' extensive expertise in lingual orthodontics and facial orthopedics—specialized knowledge that enables complex tooth and jaw realignment.
Aesthetic dentistry services at Dental Clinic Sonríe feature Diamond Veneers—personalized bioporcelain restorations requiring minimal tooth preparation. Unlike traditional veneers that often necessitate extensive tooth reduction, Diamond Veneers preserve maximum tooth structure while creating stunning aesthetic improvements. Dra. Castejón's expertise in aesthetic dentistry means Barcelona patients receive ultra-resistant porcelain restorations that appear completely natural while maintaining superior durability.
Dental Clinic Sonríe provides comprehensive general dentistry services including preventive care, restorations, cleanings, and maintenance. Implantology services address tooth replacement through titanium dental implants, restoring function and confidence to Barcelona patients experiencing tooth loss. Prosthodontic services provide fixed, removable, and implant-supported dentures—complex restorative work requiring advanced technical expertise available at Dental Clinic Sonríe.
Pediatric dentistry services at Dental Clinic Sonríe address children's dental needs including bite problems and developing teeth. The clinic's comprehensive approach means that Barcelona families can access all family members' dental needs from a single trusted provider.
Dental Clinic Sonríe in Barcelona invests in cutting-edge technology that enables superior clinical outcomes. The WIN Lingual System represents German-engineered excellence in orthodontic technology, with each appliance customized per patient to enable precise tooth movements. The system's technological sophistication translates to faster treatment, better results, and superior patient comfort compared to conventional orthodontics.
Diamond Veneers technology at Dental Clinic Sonríe employs ultra-resistant bioporcelain customized to match each patient's unique aesthetics and functional requirements. The veneers' superior durability and natural appearance reflect the clinic's commitment to contemporary aesthetic dentistry technology.
The facility at Dental Clinic Sonríe in Barcelona's Sants neighborhood features modern, state-of-the-art equipment supporting comprehensive dental care. The clinic environment reflects contemporary clinical design with attention to patient comfort and safety. Located at C Vint-i-sis de gener, the clinic provides convenient access via public transportation and local parking.
Selecting a dental provider for orthodontic or aesthetic treatment in Barcelona requires confidence in specialized expertise and proven track record. Dental Clinic Sonríe offers exceptional credentials through its founding directors' international training and specialization. Prof. Dr. Miguel Merino Arends' training at North Carolina University in the United States brings world-class expertise to Barcelona. Dra. Adriana Castejón's specialization in aesthetic dentistry ensures that Barcelona patients receive care from a recognized aesthetic expert.
The clinic's 4.6 out of 5.0 Google rating based on 244 verified patient reviews reflects consistent delivery of excellent clinical outcomes and patient satisfaction. Patient comments highlight the professional and friendly team, modern facilities, and welcoming atmosphere—factors that distinguish Dental Clinic Sonríe in Barcelona's competitive dental market.
For Barcelona patients seeking invisible teeth alignment, Dental Clinic Sonríe offers exclusive access to German WIN technology with specialized expertise in lingual orthodontics. The combination of advanced technology, specialized training, and patient-centered service creates outcomes that often exceed expectations. For patients prioritizing aesthetic excellence in their smile transformation, Dental Clinic Sonríe represents a premier Barcelona choice.
Patient experience at Dental Clinic Sonríe begins with professional, welcoming reception and comprehensive consultation addressing patient concerns and goals. The team takes time to understand each patient's aesthetic preferences, functional needs, and lifestyle considerations. This consultative approach means that treatment plans reflect patient input rather than one-size-fits-all protocols.
The professional and friendly demeanor of the Dental Clinic Sonríe team creates a supportive environment where Barcelona patients feel comfortable discussing concerns and preferences. Clear communication about treatment options, expected outcomes, and realistic timelines helps patients make informed decisions. The modern facilities at Dental Clinic Sonríe provide a contemporary, comfortable clinical environment supporting positive patient experiences.
Many Barcelona patients express satisfaction with the aesthetic results, clinical quality, and personalized attention they experience at Dental Clinic Sonríe. The combination of specialized expertise, advanced technology, welcoming atmosphere, and proven track record creates dental experiences that build strong patient loyalty and positive word-of-mouth referrals.
Dental Clinic Sonríe is conveniently located at C Vint-i-sis de gener, 46 in the Sants-Montjuïc district, Hostafrancs neighborhood of Barcelona. The Sants district is known for its residential character, local commerce, and family-oriented community atmosphere—creating an authentic Barcelona neighborhood environment. The location provides excellent public transportation access via metro and bus, making Dental Clinic Sonríe easily accessible from throughout Barcelona. Street parking and nearby parking facilities accommodate patients arriving by car. For Barcelona residents seeking specialized aesthetic and orthodontic care in a neighborhood location with modern facilities and internationally-trained specialists, Dental Clinic Sonríe represents an excellent choice.
4.7
★ 81 reviews
valery
March 2026 · ★ 5
The best clinic in Barcelona, highly recommended! Quality of work, products, service, friendliness, and flexibility—all excellent! The prices are amazing; I was tired of going to other clinics, but this one is definitely the best of the best. Thank you!
Taniave Fernandez
March 2026 · ★ 5
Splendid service, I had implants placed there...super excellent professionals and with a unique professional ethic...I highly recommend them.
ILLYA KASYANOV
March 2026 · ★ 5
One of the best dental clinics in Barcelona. After three years of treatment, I can only say that the experience has been perfect. Both the final result and the care from all the staff have been outstanding. Highly recommended.
Zelma Gutierrez
March 2026 · ★ 5
The best. I have no words. I will always be grateful. For their service, technique, and expertise, but also for the humane treatment you find with all the doctors and staff. Three of my friends and my husband go to this clinic because, honestly, empathy isn't a coincidence. However, I will always be grateful to my doctor, Marta, for accompanying me and practically narrating every single thing she did so I wouldn't be afraid. This kindness is very necessary in these types of uncomfortable and sometimes painful procedures, which is why I think they were the best. Thanks to my experience, I can 1000% recommend this dental clinic. When I decided to get my teeth fixed, I wanted to do it with lingual treatment because I didn't want to go from one prejudice (because of my teeth) to another (because of the braces), and I found Barcelona Sonríe. The best system; you see changes immediately. In my case, I didn't feel any significant pain. The typical pain when your teeth begin to align, and with a slight variation in how I spoke, but after the first week, my mouth adjusted to the braces. Don't be afraid, the system works and is faster and more effective than conventional treatment, and much better than Invisiline. Eternally grateful, my dental clinic of choice. I'll come back whenever I need them. Thank you for everything ❤️
Jordi Miranda
March 2026 · ★ 5
The treatment was fantastic. From the first appointment to the last, they were incredibly kind to me. It was like being with family, even though going to the dentist is usually scary. And on top of everything, I have the best smile in the world. Thank you so much for everything. I'll miss you all. Esther Curieses
Martina Ventos
March 2026 · ★ 5
Excellent professionals, the service from the team was outstanding, I would definitely use them again!
Enrique Esteve
March 2026 · ★ 5
They are very professional and the service is very friendly. They have been taking care of my smile for many years and I am very satisfied.
Yamileth Varela
March 2026 · ★ 1
If you don't want to waste time and money, stay away from this place. They left me feeling terrible. I suffered for a year, and I decided to return to my old dentists. They handled the psychological aspect very poorly, the communication was terrible. They told me, "Trust me, trust me." And Dr. Marino, during my first appointment, left me feeling terrible, with panic attacks for a week. He then apologized in front of the assistant and the orthodontist, and on top of that, they were surprised when I was the one who was affected. My face was different. The entire mess this clinic left me with, in addition to the loss of money, time, and emotional damage, is being fixed by my orthodontist and the entire team. They explained to me that only the orthodontist should perform orthodontics, especially lingual braces, and it took 3 months for my mouth to be treated. I had invisible braces three months ago, and my face is prettier. I knew my dentist would fix everything. I feel confident and don't worry about anything except being disciplined. Besides, I doubt the positive reviews they have are real; they're probably fake profiles, and I'm not ashamed to write all this. It was my experience, it was a horror movie. The only good thing about that clinic is Marta, the resectionist: kind, empathetic, attentive, and respectful. I don't know what such an efficient woman is doing in a clinic like this. Let's see if they have the courage to deny all this. Because I can't respond to their response, so... They called me to tell me they'll delete the review. I paid them over €4,000, so they're not going to discredit me. I'm generous not to have taken action. Finally, I've had my new orthodontics for over a year, and at the center of great professionals I work with, they have all the proof of the disaster I arrived with, and they corrected it. And I have proof that my review isn't fake, because the same day I had them fitted, I recorded myself at the center to see the progress, and I took a photo at each adjustment. So don't tell me I'm in debt; the right thing to do was to refund what I paid. I wasted time and money, but it was a great learning experience.
Clinic response ():
Response from the owner a year agoWe appreciate your review, although we deeply regret the confusion and inaccuracies it contains. We find it odd that you would mention such a negative experience when we have images and records documenting the progress and radical changes you had achieved in such a short time under our care. Seeing the financial debt you left at the clinic, we now understand why you "ran away" and left without paying your bills. To clarify, our clinic, Sonríe - Estudio Dental, is the number one center in Spain for using the WIN lingual orthodontic system, a premium German system entrusted only to the best professionals on the continent. Furthermore, we have been serving our patients in Barcelona for over 12 years with an impeccable track record of successful treatments. It is unfortunate that you choose to discredit our work with erroneous information, since, as you well know, you always received professional and appropriate care, as required by our clinic's high standards. Regarding the mention of "multiple professionals" involved in your case, this is due to our multidisciplinary approach, which ensures the highest quality in every aspect of treatment. Any interaction you had was with top-level specialists and highly qualified staff. Regarding the psychological aspects you mention, it's important to emphasize that our clinic not only focuses on providing excellent dental treatment, but also on taking care of every detail of our patients' emotional well-being. In fact, our patients often highlight in their reviews how comfortable and well-treated they feel during each visit, both due to the warmth of the team and the personalized attention they receive. We pride ourselves on providing an environment where trust and mutual respect are essential to every treatment. Finally, insinuating that our reviews are fake is a serious and baseless accusation. Our track record of success is supported by real patients, and your case is no exception. Any defamatory comments will be addressed legally if necessary. Translated by Google ・ See original (Spanish)
Eddy Lugo
March 2026 · ★ 5
My name is Eddy Lugo, and my experience with Sonrie Dental Clinic has been very satisfactory. I felt comfortable and confident. I especially want to thank Dr. Marta, who oversaw my entire orthodontic treatment with exceptional care and patience. Thank you all for your attention and kindness. Based on my experience, I wholeheartedly recommend Sonrie Dental Clinic. It's a clinic where they not only make you smile again, as they did in my case, but also where you find professionals with extraordinary human qualities. Thank you, Sonrie team, and thank you, Marta, for making me smile like never before! 🙏
Vanessa González
March 2026 · ★ 5
Hello smile, it's a fantastic place, all the girls are lovely, especially Dr. Adriana.
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