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Our Orthodontists

Bob Lorentz, DDS, MS

Dr. Lorentz is a member of the American Association of Orthodontists and a Diplomat of the American Board of Orthodontics. He has served as president of the Mississippi Orthodontic Association, president of Mississippi's District I Dental Society and has been certified by the state board for 24 consecutive years of continuing education. He has also been listed in Who's Who in American and Who's Who in Dentistry.

Dr. Lorentz makes orthodontics a priority in his life and strives to provide the highest quality of care for his patients while making them feel comfortable and cared for.

Gregg Bouldien, DDS, MS

After attending Whitehaven Elementary School, Germantown Middle School and graduating from Evangelical Christian School, Dr. Gregg Bouldien graduated from Baylor University with a Bachelor of Arts degree in 1983. Whilte at Baylor, Dr. Bouldien served as Student Body President (1981-1982) and in Student Foundation as a Baylor Recruiter (1982-1983). At Baylor, he also met his wife to be, Marcella Saucedo Bouldien (Baylor, '85) and they were married in beautiful El Paso, Tx in December of 1985. They have 4 sons and 1 daughter.

After Baylor, Dr. Bouldien attended dental school at the University of Tennessee (Memphis) where he was a member of the Richard Doggett Dean and Marguerite Taylor Dean Honorary Society. In 1988, he graduated with a Doctor of Dental Surgery (DDS) degree followed by a Master of Science in Orthodontics(MS) degree in 1990. For 25 years, Dr. Bouldien has been practicing as an Orthodontic Specialist in Collierville and Germantown and is currently enjoying treating the children of some of his original patients. In his free time, he enjoys hunting and fishing and doing chores for his wife.

Taylor Collazo, DDS, MSD

Dr. Collazo’s vision is to serve and love people by providing the highest level of orthodontic treatment with personalized care. His heart is set on cultivating joy and confidence in his patients by creating amazing smiles and forming friendships.

Dr. Collazo is a Board Certified Orthodontist, an elite status attained by less than 30% of orthodontic specialists. He attended the University of Arkansas, where he received his undergraduate degree in Medical Science. He then earned his Doctorate of Dental Surgery (DDS) from the University of Tennessee College of Dentistry, where he graduated #1 in his class, and was elected to be a Hinman Dental Scholar. Dr. Collazo was also the recipient of the prestigious OKU Kramer Award, granted to the top student. After dental school, he completed his orthodontic residency at one of the top programs in the country, the University of Texas in Houston. During residency he obtained specialized training in growth and development, and received a Masters of Science in Dentistry (MSD) and Certificate in Orthodontics.

Dr. Collazo is married to Maeve, a dental hygienist, and they have one beautiful daughter, Luella, and a golden retriever named Memphis. Dr. Collazo is a big sports and outdoor enthusiast and enjoys tennis, biking, and hiking. He is also passionate about serving on international dental mission trips. The Collazo family is active in their church and love doing life with their local community.


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