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

Try the latest generation of botox and receive a $100 gift card.  

Sign up at the link below to have the $100 gift card mailed to you. Click Here

Bring in the gift card on your appointment date.

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.

Saliva is one of your body's natural defenses against plaque because it acts to rinse your mouth of cavity-causing bacteria and other harmful materials. Dry mouth (also called Xerostomia) is a fairly common condition that is caused by diminished saliva production. People with medical conditions, such as an eating disorder or diabetes, are often plagued by dry mouth. Eating foods such as garlic, tobacco use, and some kinds of medications, including treatments such as cancer therapy can diminish the body's production of saliva, leading to dry mouth. Other causes are related to aging (including rheumatoid arthritis), and compromised immune systems.

Some of the less alarming results of dry mouth include bad breath. But dry mouth can lead to more serious problems, including burning tongue syndrome, a painful condition caused by lack of moisture on the tongue.

If dry mouth isn't readily apparent, you may experience other conditions that dry mouth can cause, including an overly-sensitive tongue, chronic thirst or even difficulty in speaking.

If you don't have a medical condition that causes it, dry mouth can be minimized by sipping water regularly, chewing sugarless gum and avoiding smoking. Of course, there is no substitute for regular checkups and good oral hygiene.


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.