top of page
About Us


At South O Smiles, we want to make going to the dentist as easy as possible:

By offering online consultations, we allow your questions to be answered from the comfort of your own home.

We also offer online booking so you can find a time that works for you and your busy schedule.

We will keep you on track with your smile goals by sending you reminders about your appointments and let you know when it's time to start thinking about your next dental cleaning and check-up. 

We provide services to kids and adults of all ages-- we believe it is never too early or too late to start taking care of your teeth! 

We offer FREE back-to-school dental exams for kids during the summer break as a way of giving back to the community (yes, even your friends that go to another dentist can bring their kids in!)


We understand that most dentists work during hours that you are also working, so we try to accommodate by offering both week day and weekend dental appointments. 

We offer in-office membership plans so even if you don't have dental insurance, you can rest at ease knowing you and your family will be taken care of without the hassle of insurance enrollment periods or member ID numbers. 

We also understand that sometimes unexpected expenses come up that prevent you from being able to afford the dental treatment you deserve so we offer CareCredit which allows you to pay as you are able with 0% financing if paid within 24 months. 

We know that life has enough stress so we are doing our best to keep the stress of going to the dentist to a minimum. We can't wait to meet you!


Routine Exams


The dentist will examine your mouth, teeth and gums. They will check for any signs of oral health problems, such as tooth decay, gum disease and oral cancer. 

The best way to prevent larger problems in the future is to get regular check-ups now!

Dental Hygiene


A dental cleaning, also known as a prophylaxis , is a professional dental procedure performed by a hygienist or a dentist. It is an essential part of oral hygiene and helps maintain healthy gums and teeth. 

Dental Fillings


Dental fillings allow us to replace weak or damaged tooth structure with white material that mimics the your natural tooth and prevents decay from progressing.

Dentures & Partials


Dentures and partials are a great option for replacing areas that have multiple teeth missing or on patients that no longer have any teeth!

Emergency Dentistry


We offer same day appointments as well as weekend appointments to get your dental emergency taken care of right when it happens.

Crowns and Veneers


Protect your compromised teeth with a full coverage restoration that restores it to a natural beautiful look.

Our Services
  • Where are you located?
    Our address is 605 Cassidy Street, Oceanside, CA 92054. There is plenty of parking on the street in front of the practice and in our parking area just off Freeman Street. We also have a bike rack out front that you can secure your bike to if you ride to us.
  • How do I book an appointment?
    We make it easy to book an appointment with us. Call us at 442-222-7010 Text us at 442-222-7010 Email us at Book online yourself and pick your own appointment time
  • What are your mobile dentistry services?
    South O Smiles takes pride in offering convenient and accessible dental care through its innovative mobile dentistry services. Designed to cater to the needs of local elderly patients who may have difficulty visiting the traditional dental clinic, our mobile dentistry unit brings high-quality dental care directly to their doorstep. With state-of-the-art equipment and a highly skilled dental hygienist, our mobile dentistry services provide a wide range of dental treatments and preventive care, including dental check-ups, cleanings, fluoride treatments, sealants, and minor restorative procedures to local assisted living facilities. We are committed to ensuring that our seniors receive the same exceptional level of care and attention that they would expect from our main office. If you know a senior in a local assisted living facility that needs oral care, call or email us today!
  • What kind of treatments does South O Smiles offer?
    South O Smiles offers a wide range of general dentistry services and treatments, including preventive care, restorative care, cosmetic dentistry, orthodontics, periodontics, endodontics, and oral surgery. We also provide emergency dental care.
  • Does Dr. Vance have experience with pediatric dentistry?
    Yes! Dr. Vance loves working with children. Her genuine care for each young patient shines through in every interaction. Children are our future and their dental health is of upmost importance. Whether its the child's first ever dental visit or a regular check-up, she takes the time to explain procedures in a child-friendly manner, addressing any questions or concerns they have and making visiting the dentist a fun experience. Our waiting room even has a child play area to help keep them entertained while waiting for their appointment.
  • What is the difference between a prophylaxis cleaning and a deep cleaning?
    A prophylaxis cleaning and a deep cleaning are both essential dental procedures, but they differ in scope and purpose. Prophylaxis cleaning, commonly known as a regular dental cleaning, is a preventive measure performed by a dental hygienist. It involves the removal of plaque, tartar, and surface stains from the teeth and gumline. Prophylaxis is typically recommended every six months to maintain good oral health and prevent the progression of gum disease. It is suitable for individuals with healthy gums and minimal plaque buildup. On the other hand, a deep cleaning, also known as scaling and root planing, is a therapeutic procedure aimed at treating gum disease (periodontitis). This comprehensive cleaning is performed by a dentist or periodontist and involves cleaning below the gumline to remove accumulated plaque, tartar, and bacteria from the roots of the teeth. Additionally, the rough surfaces of the roots are smoothed (root planing) to promote gum reattachment and healing. Deep cleaning is necessary when there is significant gum inflammation, pockets between the gums and teeth, and signs of gum disease.
  • What insurances do you accept?
    PPO Plans We are currently in network with the following plans: ~ Aetna ~Altus Dental, Inc. ~Anthem ~Ameritas Life Insurance Corp (Physicians Mutual) ~Best Life and Health Insurance Co. ~Blue Cross ~Careington International Corporation ~Cigna ~Commonwealth Care Alliance ~Delta Dental PPO/ Premier ~DenteMax ~Kaiser ~Dominion National ~Employee Benefit Management Services ~FCE Benefit Administrators, inc. ~First Dental Health, inc. ~Foundation for Medical Care ~GEHA ~Guardian PPO ~HealthComp, Inc. ~Humana Dental Insurance ~Kansas City Life Insurance Company ~Level Inc. ~Lincoln Financial Insurance Company ~Medicare Advantage Plans ~Metlife PPO ~Mid-American Benefits, Inc. ~National Rural Electric Cooperative Association Group Benefits Program (NRECA) ~ NovaNet, Inc. ~Paramount Dental ~Pequot Plus Health Benefit Services ~Preferred Health Professionals ~Principle Financial Group ~Renaissance Dental ~Shasta Administrative Services ~Solstice Benefits, Inc. ~Sun Life Financial, Inc. ~TransWestern Insurance Administrators ~TriStar Benefit Administrators ~United Concordia/ TRICARE ~United Healthcare Out of Network We are out of network with the following plans but can still accept the insurance ~ Principal PPO ~ Guardian PPO HMO Plans We are not in network with any HMO plans. No Insurance No problem! We have an in office membership plan which covers all your preventive care and offers discounts on other services. Prices are based on the type of cleaning needed but start at $480 per year for an adult. Insurance can be confusing, we would be happy to go over your benefits with you and help explain your options.
  • How much is a new patient visit without insurance?
    This does vary a little based on the type of cleaning you need. For a basic cleaning, new patient comprehensive exam and a full set of x-rays the cost is $395 without fluoride treatment. We do offer a membership program which offers substantial savings.
  • Tell me about your membership program.
    We offer an in office membership program for those without insurance. The cost does vary based on the type and frequencies of cleanings needed. For an adult needing basic cleanings the cost is $480 per year. This includes: 2 dental hygiene appointments per year 2 complete exams 2 fluoride treatments during your hygiene appointment Annual full mouth X-rays An emergency exam if needed to discuss a specific issue We also offer 10% off all other services to our membership plan patients.


Years of Experience


Smiling  Clients


Continuing Education Courses

Our Dentists

Our Team

A brunette dentist wearing a black jacket is smiling with her hand on her hip.

Dr. Katherine Vance

Dr. Vance graduated from Loma Linda University in 2020 and first began working at her family's dental practice in Minnesota. She married a pilot in the Marine Corps who is stationed at Camp Pendleton and thus returned to the west coast! She worked for a dental practice in Loma Linda before deciding to open up her very own practice here in Oceanside to be close to home. She believes everyone deserves quality dental care and strives to make each of her patients feel comfortable. In her free time she enjoys hiking with her 3 dogs and traveling with her husband.


Our Address

605 Cassidy Street

Oceanside, CA 92054

Tel: (442) 222-7010 

Business Hours

Tuesday - Friday   8 AM - 5 PM

One Saturday per month  8 AM- 5 PM


Contact Us
bottom of page