OC Splendid Smiles

Family & Cosmetic Dentist in Lake Forest, CA

Our friendly dentist and team provide comprehensive, personalized dental care designed to keep your smile healthy, confident and beautiful. From preventive care to dental implants, Invisalign® and cosmetic dentistry, we help patients of all ages achieve lasting results.

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OC Splendid Smiles is committed to helping you and your family achieve and maintain excellent oral health for a lifetime. Dr. Marianne Tanios and our team provide a full range of dental services in Lake Forest, California, including preventive, cosmetic and restorative care—all tailored to your individual needs.

Whether you are looking for a trusted family dentist, want to enhance your smile with cosmetic dentistry, or need advanced care like dental implants or Invisalign clear aligners, we are here to help. We take the time to understand your goals, explain your options and create personalized treatment plans that fit your lifestyle.

Call today to make an appointment and experience high-quality dental care in Lake Forest, CA.

Smile Gallery

Achieving Our Patients’ Smile Goals


See how expert dental care can create life-changing results! Our smile gallery highlights the incredible smile transformations completed by Dr. Marianne Tanios. From restoring dental health to enhancing natural beauty, our dentist in Lake Forest, CA works closely with each patient to deliver personalized, high-quality results. These photos reflect our commitment to detail, comfort and lasting care. Whether you are looking to improve your smile or simply want to see what is possible, our gallery offers real examples of success. Give us a call to schedule your personal consultation and learn more about our dental services!

Why Choose OC Splendid Smiles


We are dedicated to providing high-quality, personalized dental care in a welcoming and comfortable environment. Dr. Tanios and our team focus on building long-term relationships while delivering care you can trust.

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Comfortable Environment

We maintain a welcoming, comfortable atmosphere to help you feel at home in our office.

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Patient-Centered Care

Your oral health, smile and comfort are always our highest priorities. Every treatment plan is tailored to your unique needs and goals.

Our Financial Options


OC Splendid Smiles offers flexible financial options to help you receive the care you need. We work with your budget and provide guidance so you can move forward with treatment confidently. Call today to learn more and schedule your appointment.

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Affordable Dentistry

Our goal is to provide you with dental care that is both high quality and affordable.

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Meet Dr. Marianne Tanios


Trusted Dentist in Lake Forest, CA

Dr. Marianne Tanios is dedicated to providing gentle, high-quality dental care tailored to each patient. She takes the time to understand your needs, answer your questions and create treatment plans designed for long-term oral health.

Her patient-first approach ensures that every visit is comfortable, informative and focused on achieving your best smile. Call today to schedule your appointment and learn more about dental care in Lake Forest, California.

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Dr Marianne Tanios

Real Patients. Real Experiences.

Read our reviews to see what our patients have to say about their visit to OC Splendid Smiles! We love hearing from our patients, and also invite you to leave us a review of your own after meeting with Dr. Tanios. Give us a call today to schedule your visit!

New Smiles Always Welcome!

Ready to improve your smile?
Contact OC Splendid Smiles today to schedule your visit and experience personalized dental care in Lake Forest, California.