Welcome to Lake Forest Oral Surgery!

At Lake Forest Oral Surgery, we see patients of all ages. We aim to make your visits with us as stress-free and comfortable as possible. Here is some valuable information that should answer most of your questions, but if you still need assistance, please call us at (949) 203-3177.

Professional Care in a Friendly Environment

We understand that the idea of oral surgery can be somewhat intimidating. But you can count on our experienced team to treat you with warmth and kindness and support you throughout your surgery.

Why Choose an Oral Surgeon?

Your general dentist is trained to handle a wide range of oral health needs including preventive and restorative services. Beyond this basic training, some dentists go on to specialize in a particular area of oral health care like oral and maxillofacial surgery.

After dental school, an oral surgeon spends an additional four years in a hospital-based surgical residency program to become a specialist in oral and maxillofacial surgery. In her practice, Dr. Suzin Um's focus is to provide dental surgeries like implant placement, bone grafting, dental trauma, and treatment of impacted teeth. She is also trained and certified by the State of California to safely provide all levels of anesthesia, from nitrous oxide to in-hospital general sedation.

Appointment Scheduling

If you have been referred to us by your dentist, you can arrange an appointment by calling our office or filling out our convenient online contact form. Our hours are:

  • Monday – Thursday: 9 AM to 6 PM
  • Friday: 9 AM to 5 PM
  • Saturday: By appointment

We know that an unexpected dental problem can be upsetting, so Dr. Um is always available to see our emergency patients.

Financial Information

We will work with your insurance, and we accept cash, personal checks, major credit cards, and CareCredit interest-free financing. Please check our Financial page for details

Convenient, Accessible Location

Lake Forest Oral Surgery is located in Foothill Ranch, CA. Foothill Medical Center is on the corner of Towne Centre Drive and Bake Parkway. Our office is on the second floor and is, of course, wheelchair accessible.

We are in the proximity to Lake Forest, Mission Viejo, Rancho Santa Margarita, and Irvine. For detailed directions to our office, please visit our Contact page.


For your comfort, we offer all levels of sedation from nitrous oxide to in-hospital sedation. Based on the procedure we are performing and your personal comfort level, Dr. Um will make recommendations during your consultation as to which type is right for you.

Privacy Policy

At Lake Forest Oral Surgery, your privacy is of utmost importance to us. We will never share your information without your permission.