Dentist - St Johns
2220 CR 210 West, Suite 312
St Johns, FL 32259
(904) 825-9960

(904) 825-9960
2220 CR 210 West, Suite 312
St Johns, FL 32259

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Online Dental Education Library

Our team of dental specialists and staff strive to improve the overall health of our patients by focusing on preventing, diagnosing and treating conditions associated with your teeth and gums. Please use our dental library to learn more about dental problems and treatments available. If you have questions or need to schedule an appointment, contact us.

The pits and grooves of your teeth are prime areas for opportunistic decay. Even regular brushing sometimes misses some of these intricate structures on the chewing surfaces of your teeth.

Enter sealants, which are thin coatings applied to the chewing surfaces designed to prevent the intrusion of bacteria and other debris into the deep crevices on the tops of your teeth.

Sealants actually were developed about 50 years ago, but didn't become commonly used until the 1970s. Today, sealants are becoming widely popular and effective; young children are great candidates for preventative measures like sealants because in many cases, decay has not set in. Even on teeth where decay is present, sealants have been shown to fight additional damage.

Sealants are applied by first cleaning the tooth surface. The procedure is followed by etching the tooth with an abrasive substance, which allows the sealant to better adhere. After the sealant is applied, a warm light source is directed to the site to promote faster drying. Sealants usually need re-application every five to 10 years.


Dr. John Joyner

Dr. Joyner established St Johns Dental as a cosmetic and family dental practice in 2003.  His goal is to provide high quality dentistry and a caring, gentle environment for his patients.  Dr. Joyner grew up in Mississippi where his father was a United Methodist minister.  Dr. Joyner graduated from the University of Mississippi School of Dentistry in 1991. He is currently also an Instructor for the University of Florida Dental School.  He supervises dental students as they complete their clinical rotations at The Sulzbacher Center in Jacksonville Beach, FL.

Read more about Dr. John Joyner

Questions or Comments?
We encourage you to contact us whenever you have an interest or concern about our services.