Choosing dentistry as a profession because of the rewards of being a caregiver and the artistic and technical aspects of smile design, Dr. Petterson completed her undergraduate studies at the State University of New York in Binghampton and received a B.S. in Biology in 1977. During her years in SUNY, she worked as a chairside dental assistant.
Dr. Petterson relocated to Atlanta to attend Emory University School of Dentistry, completing her Doctor of Dental Surgery (D.D.S.) degree in 1983. She has great memories from dental school as she and her Dad, a maker of fine jewelry in Manhattan, compared technical notes on a wax technique that is used in both making jewelry and dental crowns. Mom was the creative one in the family, with a love for painting in oils and watercolors, and inspiring Dr. Petterson's interest in dental esthetics.
Passionate about advancing her skills and clinical practice through technology and education, Dr. Petterson continually attends professional education in all phases of general dentistry. Areas of focus include CAD/CAM restorative technology, cosmetic dentistry and cone beam diagnostic imaging.
Away from the practice, Dr. Petterson enjoys tennis, golf, photography, decorating, both water and snow skiing, and visiting the mountains and the beach.
Blue Cross/Blue Shield Dental Provider
Kristopher Mixon, DMD
Dr. Mixon's interest in dentistry began in high school, after he was hit in the mouth at a football game. His dentist stayed late to help him, and his kindness and caring approach motivated Dr. Mixon to pursue a career in the dental profession.
Dr. Mixon completed his B.S. in Biology at University of Georgia, and continued his education to achieve a Doctor of Dental Medicine (D.M.D.) degree from the Medical College of Georgia in Augusta in 2004.
Following dental school, Dr. Mixon joined Dental Care Center in Macon; since then he has enjoyed helping people improve their oral health and providing care for patients that have not smiled in years and experiencing their joy as they “get their smile back”.
Passionate about continuing education and staying abreast of dental technology, Dr. Mixon pursues ongoing professional training in all phases of general dentistry, with a special interest in Cerec® CAD/CAM technology and Cone Beam Diagnostic Imaging. He is a member of the American Dental Association and Georgia Dental Association.
Dr. Mixon is married with two sons and is part of a big family; during their free time they love spending time at the lake together or at a family reunion. He also enjoys fishing, hunting and golf.
Blue Cross/Blue Shield Dental Provider
Robert O'Brien, DMD
Dr. Robert O'Brien grew up in the small town of Douglas, GA and knew since his middle school years that he wanted to be a dentist. After graduating high school, he went to one year of undergraduate schooling at Valdosta State University studying both music and biology. Dr. O'Brien then went on a two-year church mission to Thailand, where he learned to both read and write Thai while teaching the people about Jesus Christ. Upon completion of his two-year church mission, Dr. O'Brien returned to VSU and completed his bachelor of science degree graduating top of his class in 2009. He then pursued and completed his Doctor of Dental Medicine (D.M.D.) degree from the Medical College of Georgia (later renamed Georgia Regents University) in 2013.
Following dental school Dr. O'Brien joined the Dental Care Center team and has enjoyed getting to know and helping the people of Macon regain “something to smile about”.
While in dental school, Dr. O'Brien took particular interest in the new Cerec® CAD/CAM technology that enables patients to walk out with a crown cemented in place in one visit. He also developed a love for correcting patients' bites, placing cosmetic restorations, and performing root canals.
Dr. O'Brien is a member of the American Dental Association, Georgia Dental Association, and Academy of General Dentistry. He is active in the local Latter-day Saints church, serving as a youth adviser as well as a Boy Scout leader. While away from the practice, Dr. O'Brien enjoys spending time with his wife, playing and watching sports, practicing the piano, traveling, exploring new places to eat, and visiting family.
Gregory S. Miller, DDS, MHS
Dr. Gregory Miller received his Doctor of Dental Science degree from The University of Tennessee Center for the Health Sciences in Memphis, Tennessee. He completed a fellowship in Oral and Maxillofacial Surgery at the Emory University School of Graduate Medicine in Atlanta, and later completed specialty training and Associated Masters Degree at the University of South Carolina in Charleston. While at the University of South Carolina, he received the highest honors and graduated in the top tier of his class.
Dr. Miller has contributed numerous volunteer clinical hours to his community, including patient care for local refugees with the Lost Boys of Sudan.
Johnny L. Gosier, DMD
Dr. Johnny L. Gosier is from Dixie, Ga. a very rural and agrarian community in South Georgia. He received his B.S. in Animal Science from Fort Valley State University, and completed his D.M.D. degree from the Medical College of Georgia. While in dental school he served as President of the Student National Dental Association and was an ADA student ambassador. He was presented with the American Association of Endodontists Student Achievement Award at MCG his senior year. Dr. Gosier completed his two-year Endodontic Residency at Georgia Regents University College of Dental Medicine (MCG). Dr. Gosier is a member of the American Association of Endodontics, American Dental Association, and Georgia Dental Association. He is now board-eligible and has completed the written section of the board certification process.
Shahrokh Bagheri, MD, DMD
Dr. Bagheri is the Chief of Oral and Maxillofacial Surgery at Northside Hospital in Atlanta, and serves as a clinical faculty at both the Georgia Health Sciences University and Emory University, where he is involved in resident education. He has published over 40 articles and 25 book chapters. Dr. Bagheri is an internationally recognized surgeon and is the senior editor and author of two major textbooks of Oral and Maxillofacial Surgery.
He received his DMD from Harvard University (cum laude, class marshall), and MD from Emory University, where he also completed his residency in oral and maxillofacial surgery and internship in General surgery. He obtained his fellowship training in Cranio-Maxillofacial Trauma and Cosmetic Surgery. His particular interests include, implant surgery, facial cosmetic surgery, trauma, and reconstructive maxillofacial surgery. He is one of few surgeons in the United States that is trained in microneurosurgical repair of peripheral trigeminal nerve injuries with extensive publications on this topic. He is also one of few oral and maxillofacial surgeons in Georgia that qualifies for fellowship in prestigious American College of Surgeons (FACS).
Dr. Bagheri has lectures nationally and internationally on a variety of topics in facial surgery. He serves as editor of several peer reviewed surgical journals and has organized international lectureships for doctor education on many aspects of maxillofacial surgery. His current research projects involve microneurosurgery. For more information about Dr. Bagheri, visit: www.facs.org.
Ali Khan, MD, DMD
Oral and Maxillofacial Surgery
Dr. Khan graduated from the University of Kentucky in 1995. He completed Medical School at the University of Miami, and also trained in General Surgery and Oral and Maxillofacial Surgery. During the latter part of his residency training, his focus became general plastic and facial plastic surgery.
Dr. Khan is board certified by the American Board of Oral and Maxillofacial Surgery, making him one of the few oral surgeons in Georgia that has earned this honor. He is also a Diplomate of the American Board of Cosmetic Surgery. With an international following, Dr. Khan was a member of the initial team that launched the surgical services at the American Academy of Cosmetic Surgery Hospital in Dubai. He continues to practice all over the world, performing clinical procedures, lecturing and serving in faculty roles. Dr. Khan has co-edited textbooks in surgery and published several articles and book chapters on cosmetic surgery.
Michael E. Pruett, DMD
Dr. Pruett received his Doctor of Dental Medicine from the Medical College of Georgia School of Dentistry. Following dental school, he completed a two-year General Practice Residency at the University of Virginia. He later served as the Director of Dentistry at Mount Sinai Hospital and Assistant Program Director of the General Practice Residency at Saint Francis Hospital and Medical Center in Hartford, Connecticut.
Dr. Pruett has performed advanced dental treatments, including placement and restoration of dental implants and oral surgery procedures, for over two decades. He is an Assistant Professor of Oral Rehabilitation and Director of the General Practice Residency Program at the Dental College of Georgia at Augusta University. He teaches advanced education courses on dental implants, I.V. sedation, and oral surgery, and is recognized as a Fellow in both the International College of Dentists and the Pierre Fauchard Academy. He is also a Diplomate in the International Congress of Oral Implantologists.
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