Welcome to One magnificent Smile

Dr. Maria Sison-Rosario and the One Magnificent Smile dental team provide professional, high-quality dental care, personalized to your desires.

We offer children’s dentistry, dental exams and cleanings, and:

Located in Fullerton, our family-friendly dental office serves residents of Brea, Yorba Linda, Placentia, and surrounding communities. Please contact us to learn more and schedule a complimentary consultation with Dr. Rosario and our team, today!

Treatment tailored to you

Dr. Rosario’s training, experience, and use of advanced, conservative technologies and techniques, allows her to fully customize your dental care.

She will work closely with you to determine the ideal treatment for your specific goals and concerns. This ensures the best experience, and functional, lasting, radiant results!

As your partners, she and our team will help you achieve optimal oral health and a smile you love, and empower you to keep it healthy and beautiful, so it lasts a lifetime!

Complete Treatment Solutions

Patient Reviews

  • “Dr. Maria Rosario just gave me the most comprehensive exam and professional check-up I have ever experienced. She truly cares about her patients' dental hygiene and overall well-being. I am looking forward to my next few visits to take care of my teeth and gums. I know I am in good hands.”

    Julie L

  • “Amazing! Dr. Rosario and her staff are friendly and helpful. They actually make you not dread going to the dentist. No overbilling or pushing unnecessary services here. She truly wants the best possible care for her patients. Highly recommend!!”

    Marie P

  • “Dr. Rosario is by the far the best dentist that I have had, and I can honestly recommend her to anyone looking for a reliable, professional dentist that you can count on for years to come!”

    Milady C

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