About

Dr. Larry P. Tadlock is the Head of the Orthodontic Department, Program Director, and Clinical Professor at Texas A&M School of Dentistry. He has been teaching in the Orthodontic Department since 2000. Dr. Tadlock received his undergraduate degree from the University of Texas at Arlington, his DDS from the College of Dentistry in 1984, and his MS degree and orthodontic specialty certificate from the University of Texas Health Science Center, Houston in 1988. He was in private practice for over 30 years and is an active member of many professional organizations. Dr. Tadlock has lectured nationally and internationally and has served in leadership roles in both local and national professional organizations, including serving on the Board of Trustees of the Southwestern Society of Orthodontists and as its past President. He also served as a Director of the American Board of Orthodontics from 2011 to 2020 and was President of the ABO from 2018 to 2019. Dr. Tadlock has received numerous awards for his teaching, clinical, and professional contributions, including the Earl E. and Wilma S. Shepard Award of Distinguished Service, the Yellen–Shoverling Award, and the Martin Dewey Award, among others.

Research topics

• Orthodontics
• Medicine
• Artificial Intelligence
• Machine Learning
• Dentistry
• Computer Science
• Physical therapy
• Surgery

Selected publications

• Variability associated with the infrazygomatic region for miniscrew insertion in patients with different growth patterns, sex, and growth status

  American Journal of Orthodontics and Dentofacial Orthopedics · 2025-12-09

  article
  PublisherDOI

• How to design MARPE appliances – Part II: Palatal thickness in subjects with different skeletal pattern, sex, and growth status

  Seminars in Orthodontics · 2025-11-01

  article
  PublisherDOI

• How to design MARPE appliances – Part I: Palatal depth and width in subjects with different skeletal patterns, sex, and growth status

  Seminars in Orthodontics · 2025-11-01

  article
  PublisherDOI

• Management of complex orthodontic problems with alternative or patient-centered treatment approaches: A case series

  Seminars in Orthodontics · 2025-07-01

  review1st authorCorresponding
  PublisherDOI

• Incorporating clinical innovations into teaching curriculum in orthodontic residency programs: Checklists and roadmaps

  Seminars in Orthodontics · 2024-05-15 · 1 citations

  reviewSenior author
  PublisherDOI

• The effects of dietary loading on the transdifferentiation of condylar chondrocytes

  American Journal of Orthodontics and Dentofacial Orthopedics · 2024-04-04 · 2 citations

  articleOpen access
  PublisherOA PDFDOI

• Short-term skeletal and dentoalveolar effects of overexpansion:

  The Angle Orthodontist · 2021-08-13 · 4 citations

  articleOpen access

  OBJECTIVES: To evaluate whether the amount of rapid maxillary expansion differentially affects the skeletal and dentoalveolar changes that occur. MATERIALS AND METHODS: This randomized controlled trial included 23 patients who had rapid maxillary expansion (RME). Subjects were randomly assigned to a conventional expansion control group (n = 12) or an overexpansion group (n = 11), who started treatment at 13.2 ± 1.5 and 13.8 ± 1 years of age, respectively. Cone beam computed tomography scans (11 cm) were obtained prior to rapid maxillary expander (RME) delivery and approximately 3.7 months later. Initial hand-wrist radiographs were used to determine the participants' skeletal maturity. RESULTS: The RME screws were activated 5.6 ± 1.2 mm and 10.1 ± 0.6 mm in the conventional and overexpansion groups, respectively. Overexpansion produced significantly greater expansion of the nasal cavity (2.1X-2.5X), maxillary base (2.3X), buccal alveolar crest (1.4X), and greater palatine foramina (1.9X). Significantly greater intermolar width increases (1.8X) and molar inclination (2.8X) changes were also produced. The nasal cavity and maxillary base expanded 23%-32% as much as the screws were activated. Skeletal expansion was positively correlated with RME screw activation (R = 0.61 to 0.70) and negatively correlated (R = -0.56 to -0.64) with the patients' skeletal maturation indicators (SMIs). Together, screw activation and the patients' SMI scores explained 48%-66% of the variation in skeletal expansion. CONCLUSIONS: This pilot study shows that overexpansion produces greater changes than conventional expansion, with greater skeletal effects among less mature patients.

  PublisherOA PDFDOI

• Stability of immediately loaded 3 mm long miniscrew implants: a feasibility study

  Dental Press Journal of Orthodontics · 2021 · 4 citations

  • Medicine
  • Dentistry
  • Orthodontics

  INTRODUCTION: Shorter miniscrew implants (MSIs) are needed to make orthodontics more effective and efficient. OBJECTIVE: To evaluate the stability, insertion torque, removal torque and pain associated with 3 mm long MSIs placed in humans by a novice clinician. METHODS: 82 MSIs were placed in the buccal maxillae of 26 adults. Pairs of adjacent implants were immediately loaded with 100g. Subjects were recalled after 1, 3, 5, and 8 weeks to verify stability and complete questionnaires pertaining to MSI-related pain and discomfort. RESULTS: The overall failure rate was 32.9%. The anterior and posterior MSIs failed 35.7% and 30.0% of the time, respectively. Excluding the 10 MSIs (12.2%) that were traumatically dislodged, the failure rates in the anterior and posterior sites were 30.1% and 15.2%, respectively; the overall primary failure rate was 23.6%. Failures were significantly (p= 0.010) greater (46.3% vs 19.5%) among the first 41 MSIs than the last 41 MSIs that were placed. Excluding the traumatically lost MSIs, the failures occurred on or before day 42. Subjects experienced very low pain (2.2% of maximum) and discomfort (5.5% of maximum) during the first week only. CONCLUSIONS: Shorter 3 mm MSIs placed by a novice operator are highly likely to fail. However, failure rates can be substantially decreased over time with the placement of more MSIs. Pain and discomfort experienced after placing 3 mm MSIs is minimal and temporary.

  PublisherOA PDFDOI

• Keys to Class II correction: A comparison of 2 extraction protocols

  American Journal of Orthodontics and Dentofacial Orthopedics · 2021 · 23 citations

  • Dentistry
  • Orthodontics
  • Medicine
  PublisherDOI

• A predictive model of “favorable” and “unfavorable” anteroposterior skeletal relations among Class Is and Class IIs

  The Angle Orthodontist · 2021-04-09

  articleOpen access

  OBJECTIVES: To validate the use of the sagittal distance between ANS and Pg (ANSPg) as a measure of favorable and unfavorable anteroposterior skeletal relations and to identify multivariate cephalometric measures that could be used to predict favorable and unfavorable relations at 15 years of age. MATERIALS AND METHODS: This longitudinal study included 226 untreated adolescents evaluated at 10 and 15 years of age. Patients were grouped as "favorable" or "unfavorable" based on the ANSPg (measured parallel to S-N -7°) at 15 years of age (ANSPg15). ANSPg15 was validated based on its correlation with changes in ANSPg between 10 and 15 years of age, as well as its relationships with established measures of growth potential. Multiple regression and discriminant analyses were performed to predict ANSPg15 from measures at 10 years of age. RESULTS: ANSPg15 and the change in ANSPg between 10 and 15 years of age were significantly correlated (R= -0.661; P ≤ .001), with 77% of patients in whom relationships improved (ie, distance decreased) exhibiting favorable relationships at 15 years of age. Established measures of growth potential were significantly (P < .001) correlated with ANSPg15 and showed significant differences between patients with favorable and unfavorable relations. Multiple regression showed that the Y-axis, ANS-N-Pg, and symphyseal angle measured at 10 years explained approximately 60% (R = 0.78) of the variation in ANSPg15. Based on these three variables, discriminant function correctly predicted favorable or unfavorable relations of ANSPg15 77% of the time. CONCLUSIONS: ANSPg15 was a valid measure for determining favorable and unfavorable anteroposterior skeletal relationships that could be predicted with moderately high levels of accuracy.

  PublisherOA PDFDOI

Frequent coauthors

• Peter H. Buschang

  16 shared

• Phillip M. Campbell

  Texas A&M University

  8 shared

• Emet D. Schneiderman

  6 shared

• Nicholas Barone

  American Association of Orthodontists

  4 shared

• Helder B. Jacob

  The University of Texas Health Science Center at Houston

  4 shared

• David G. Sabott

  American Association of Orthodontists

  4 shared

• Saeed N. Asiri

  3 shared

• Chun‐Hsi Chung

  University of Pennsylvania

  3 shared

Education

• MS and Specialty Certificate in Orthodontics, Orthodontics

  University of Texas Health Science Center at Houston

• DDS

  Texas A&M University Baylor College of Dentistry

Awards & honors

• Earl E. and Wilma S. Shepard Award of Distinguished Service…
• Yellen – Shoverling Award from the University of Texas Alumn…
• Martin Dewey Award – the highest honor the Southwestern Soci…
• Fellow, American College of Dentists (2009)
• Robert E. Gaylord Award of Excellence in Orthodontic Educati…