John M. Sullivan, DMD, MS
Board Certified Endodontist

Thomas P. Currie, DMD, MS

Alexander R. McClure, DMD

904.636.8999

Sunset over the beach

Meet Us

The Doctors

Dr. Sullivan

Dr. Sullivan with his wife

As a Board-Certified Endodontist, a Diplomate of the American Board of Endodontics, Dr. Sullivan operates a private practice in Jacksonville, Florida with two locations. His endodontic certificate, Master of Science in Dental Sciences, and DMD degrees were awarded by the University of Florida. Additional degrees include a second Master of Science degree in Mechanical Engineering from the University of Colorado and a Biological Engineering Bachelor of Science from North Carolina State University.

Prior to his transition to dentistry, he served as a forensic engineer with Knott Laboratory in Denver, Colorado as well as a Process Engineer with Bayer Corporation in Clayton, North Carolina. During his endodontic residency, Dr. Sullivan presented his research at annual meetings of the American Association of Endodontists at locations including Vancouver, Orlando, San Diego, and San Antonio. Professional organization affiliation includes membership in the American Association of Endodontists, American Board of Endodontics, American Dental Association, Florida Dental Association, and Jacksonville Dental Society.

Educational and employment endeavors have given Dr. Sullivan the opportunity to live in seven states, two countries (England and Australia), and St. Thomas. He enjoys volunteering his time with such organizations as Give Kids a Smile. His wife, Dr. Laura Sullivan, also operates in private practice as a pediatric dentist – St. Johns Pediatric Dentistry. They have a son, Tucker Jack, and a Daughter Grace Lane. As a family they enjoy their time together participating in many outdoor activities including paddle boarding, wakeboarding, fishing, and snowboarding.

Dr. Sullivan has been active in research to make sure his techniques and treatment are the best available. He has authored, or co-authored, the following publications:

  • J. Sullivan, S. Manne. L. Shaddox, C. Walker. R. Pileggi. The Antimicrobial Property of a New Ultrasonic Irrigation Needle Device Against E. faecalis Biofilm. J. Endod 2010, 36:576. (abstract)
  • J. Sullivan, R. Pileggi, C.H. Varella. Subcutaneous Facial Emphysema due to the use of Pressurized air During Radicular Perforation Repair. J. Endod 2009, 35:459. (abstract)
  • J. Sullivan, R. Pileggi, C. Varella. Evaluation of Root-End Resections Performed by Er, Cr: YSGG Laser with and without Placement of a Root-End Filling Material. Int J Dent. 2009:798786. Epub 2009 Aug 6.
  • J. Sullivan, R. Pileggi, C.H. Varella. Evaluation of Root-End Resections Performed by Er,Cr:YSGG Laser Compared to Lindeman Carbide Bur With and Without the Placement of a Root-end Filling Material. J. Endod 2008, 34:373. (abstract)
  • R.W. Heydrich, C.H. Varella, J. Sullivan, L. Baccaglini, R. Pileggi. A quantitative SEM analysis of canal cleanliness utilizing different irrigating solutions. J Endod 2008, 34, 343.(abstract)
  • H. Shelton, J. Sullivan, K. Gall. Analysis of the Fatigue Failure of a Mountain Bike Front Shock. Engineering Failure Analysis 2004, 11, 375.
  • J. Sullivan, G. Baughman. Go-Cart for a Child with Spina Bifida. NSF 2001, 104.

Hobbies: Paddle boarding, wakeboarding, fishing, snowboarding, and  Gator Hunting – Florida Times Union (Moonlight Gator hunters)


Dr. Currie

Dr. Currie Headshot Dr. Thomas Currie earned his Endodontic certificate, Master of Science in Dental Sciences, and DMD degrees at the University of Florida. Additional degrees include a Master of Science in Medical Sciences and Bachelor of Science in Psychology, also from the University of Florida. Dr. Currie is currently on track to receive his Board Certification to become a Diplomate of the American Board of Endodontics.
During his endodontic residency, Dr. Currie presented his research at the American Association of Endodontists annual sessions in Honolulu, Hawaii, and Washington, DC. In 2014, he was presented with The Top Ten Research Oral Presentation Award by Dentsply. Professional organization affiliation includes membership in the American Association of Endodontists, American Dental Association, the Florida Dental Association and the Northeast Dental District Association. In addition, he has gained experience in providing endodontic therapy for adults with developmental disabilities through state programs established by the Agency for Persons with Disabilities. He also provides endodontic therapy on a volunteer basis for the underserved population through the Florida Department of Health’s “We Care” program.

In his free time, Dr. Currie enjoys watching the Florida Gators, boating, fishing, and other various outdoor activities.

Dr. Currie has been active in research to further his endodontic knowledge. He has authored, or co-authored, the following publications:

  • Expression of an exogenous human Oct-4 promoter identifies tumor-initiating cells in osteosarcoma. Levings PP, McGarry SV, Currie TP, Nickerson DM, McClellan S, Ghivizzani SC, Steindler DA, Gibbs CP.Cancer Res. 2009 Jul 15;69(14):5648-55.
  • Deficiency in endogenous modulation of prolonged heat pain in patients with Irritable Bowel Syndrome and Temporomandibular Disorder.King CD, Wong F, Currie T, Mauderli AP, Fillingim RB, Riley JL 3rd. Pain. 2009 Jun;143(3):172-8.
  • Self-care behaviors associated with myofascial temporomandibular disorder pain. Riley JL 3rd, Myers CD, Currie TP, Mayoral O, Harris RG, Fisher JA, Gremillion HA, Robinson ME. J Orofac Pain. 2007 Summer;21(3):194-202.
  • Identification of Metastatic Human Osteosarcoma Cells in the Dental Pulp in a NOD/SCID mouse model T. P. Currie, P. P. Levings, S. C. Ghivizzani, R. Watson, S. Bullard, U. P. Nair, R. Pileggi, K. G. Neiva 2014 (publication pending)

Dr. McClure

Dr. McClure - St Johns Endodontics Dr. McClure graduated #1 in his class from the University of Pennsylvania School of Dental Medicine and earned his Endodontic Certificate from Tufts University in Boston. Originally from Virginia, he received a Bachelor of Science in Biomedical Engineering from the University of Virginia. Dr. McClure is currently on track to receive his Board Certification to become a Diplomate of the American Board of Endodontics.

Dr. McClure takes a special interest in new technology, incorporating the most effective techniques in CBCT 3-dimensional imaging, microsurgery, and root canal disinfection. As a strong believer in evidence-based dentistry, he stays current with the latest endodontic literature, adopting the most effective clinically proven materials and methods into his technique. Aside from treating patients, Dr. McClure enjoys teaching, having served as a lecturer and clinical instructor at Tufts University. He has volunteered in numerous Mission of Mercy events (Harrisburg, PA, Roanoke, VA, and Springfield, Va), and provided free dental care in foreign countries – Costa Rica and Nicaragua.

Dr. McClure is a member of the American Association of Endodontics (AAE), Omicron Kappa Upsilon (OKU) National Dental Honor Society, American Dental Association (ADA), Florida Dental Association, Northeast District Dental Association, and Jacksonville Dental Society.

In his free time, Dr. McClure enjoys scuba diving, golfing, playing with his dog, Sebby, and traveling with his wife, Dr. Jane Han, who is currently serving the U.S. Navy as a general dentist.

Dr. McClure has been active in research to help progress the field of dentistry. He has authored and co-authored the following research studies:

  • McClure, Roomian, Kugle, Eisen, Amato. Jumpstart Mirror Trainer: A New Device For Teaching Mirror Skills to First-Year Dental Students. [publication pending]
  • McClure, Wu, Roomian, Amato. Predisposing Factors of Irreversible Pulpal Pathosis following a Crown Procedure. Tufts University 2017
  • McClure, Mante, Johnson, Using Electrical Properties to Reveal Un-instrumented Canals During Root Canal Therapy
  • McClure, Klemczyk, Sklenar, Fielden, Klibanov, Meyer. 19 F MR Imaging of Perfluorocarbon Nanoparticles for Application in Early-Stage Atherosclerosis Detection. University of Virginia 2011
  • Snook, McClure, Guilford. High-Throughput Single Molecule Measurements Confirm a Load-Dependent Association Rate for E-Selectin and Sialyl Lewisa. Biophysical Journal 2011,100(3)p153a