THE FOUNDATION OF PRECISION
The Fundamentals 2 Seminar equips you with all the tools necessary to accurately analyze the Advanced Orthogonal X-ray series and convert measurements into precise coordinates and table placement factors for the correction. This is where the science of Advanced Orthogonal comes to life—transforming diagnostic imaging into actionable, patient-specific data.
WHAT YOU'LL LEARN
X-RAY ANALYSIS FOUNDATIONS
- Introduction to the Advanced Orthogonal analysis templates and digital software (20/20)
- Accuracy in X-ray analysis—and why it matters
- Cross-referencing anatomy to determine the diagnostic quality of the film
CONSTRUCTING REFERENCE LINES
- The 8 reference points for constructing the Atlas Frontal Plane line
- The 10 reference points for constructing the Atlas Horizontal Plane line
- Which landmarks are used in constructing the cervical spine line
- How to modify the measurement of the Horizontal Cephalic Line on an aberrant skull
- Zoning procedures for constructing the Center Skull Line on the Frontal and Horizontal Projections (FCL & HCL)
ADVANCED ORTHOGONAL X-RAY MEASUREMENTS
- Atlas-Cephalic Displacement (ACD)
- Cervical Spine/Atlas Angle (CS)
- Atlas Frontal Plane Line (AFP)
- Condylar/Axial Circles (C/A)
- Atlas Horizontal Rotation (AHRy)
- Condylar Aberrancy Analysis (CAB)
BIOMECHANICS AND ABERRANCY
- The occipital condyle radius and how it affects patient positioning
- Measurement of the radius of the Axis superior surfaces and occipital condyle inferior surfaces—and how that affects the biomechanics of correction
- How to identify cephalic, condylar, atlas, and axis aberrancies and what to do about them
- How to accurately locate the Atlas transverse process
- Identifying the shape of the mastoid
FROM ANALYSIS TO ADJUSTMENT
- Calculating the Z and Y adjusting vectors
- The biomechanical factors contributing to correct table placement
Who Should Attend?
- Doctors who have completed Fundamentals 1
- Practitioners building toward Advanced Orthogonal Certification
- Students pursuing precision-based upper cervical training
What's Next?
Fundamentals 2 is the second course in the Fundamentals Seminar Series. Continue your training with:
- Fundamentals 3: The Advanced Orthogonal Correction — Table placement, instrument alignment, and delivering the adjustment
- This is the second of three Advanced Orthogonal Fundamentals needed to become a Certified Advanced Orthogonist.
TRAINING LOCATION
Asbury Family Chiropractic — Davenport, IA
Hosted by Dr. Greg Crowley, a certified Atlas Orthogonist for years who is now deeply involved with the Advanced Orthogonal Institute. Located near Palmer College of Chiropractic, this training site was selected to make Advanced Orthogonal education more accessible to Palmer students. Whether you're a student or a practicing doctor in the region, this is an opportunity to train close to home.
AGENDA
SATURDAY, MARCH 7, 2026
| TIME | TOPIC |
|---|---|
| 8:30-9:00 AM | Breakfast |
| 9:00-9:30 AM | Intro/ UC History |
| 9:30-10:30 AM | UC Rationale/ Cartesian Coordinate System |
| 10:30-11:30 AM | UC Anatomy |
| 11:30-12:30 PM | UC Neurology |
| 12:30-2:00 PM | Lunch |
| 2:00-3:00 PM | Examination & Pierce Maneuver |
| 3:00-5:00 PM | Xray Positioning Basics |
| 5:00-6:30 PM | Practical/ Student Xray |
SUNDAY, MARCH 8, 2026
| TIME | TOPIC |
|---|---|
| 8:30-9:00 AM | Breakfast & Review Quiz/ Discussion |
| 9:00-9:30 AM | Analyzing the Frontal Xray (Lecture) |
| 9:30-10:00 AM | Analyzing the Horizontal Xray (Lecture) |
| 10:00 AM – 10:30 AM | Analyzing the Axial Xray (Lecture) |
| 10:30-11:00 AM | Dimensional Transpositioning |
| 11:00-12:00PM | Genetic Aberrancy |
| 12:00-12:30PM | Final Vectors/ Putting it All Together |
| 1:00PM | End |
INSTRUCTORS
Our speaker lineup features leaders, innovators, and top contributors to the upper cervical field—both within chiropractic and from allied disciplines. Together, they bring forward groundbreaking insights, advanced clinical strategies, and fresh perspectives that will challenge, inspire, and equip you to elevate your practice.
Dr. Chris Slininger, DC, DCCJP
Executive Director of the Advanced Orthogonal Institute, national speaker, and leader in the Upper Cervical field in brain health and optimization. Dr. Slininger is helping Upper Cervical Care pierce into untapped markets for global impact.
Dr. Jeff Fowler DC, BCAO
Board of directors of the Advanced Orthogonal Institute and Senior technique instructor. Dr. Fowler brings a wealth of knowledge in both patient care and precision.
Dr. Nick Schar
Board of Directors of the Advanced Orthogonal Institute and Senior Techniue Instructor. Dr. Schar has spearheaded CBCT integration into the Advanced Orthogonal technique and trained many of the next generation of Advanced Orthogonists.
CONTINUING EDUCATION
This Institute has applied for Continuing Education credit for this seminar through Sherman College of Chiropractic. The list of state approvals is currently in process and will be updated as each state verifies its approval. Submission of your CE credits is included with your registration.
STUDENT & FACULTY SPECIAL
We deeply value the commitment students make to pursue advanced training in upper cervical chiropractic. We know the sacrifices you make to attend events like this, and we recognize the enormous value of early exposure to precision-based care. The earlier you begin training in Advanced Orthogonal, the longer you have to refine your skills and the more prepared you'll be when it's time to launch your career. To show our support, we're offering students half off registration.
We also support the faculty who guide and mentor students on campus. By partnering with chiropractic colleges and inviting faculty to train with us at no charge, we help ensure that students have knowledgeable support as they continue developing their skills after the seminar.
MEMBERS DISCOUNT
Membership at the Advanced Orthogonal Institute unlocks immediate value for only $997/year—a small investment that pays off big. Your membership includes full registration for the Annual Conference, priority CE credit submissions, voting rights, eligibility for board service, a listing in our doctor directory for patient visibility, and substantial discounts on all AOI training events. Members receive $200 off seminar registration.
Become a member today and step into ownership of your training, your network, and the future of Advanced Orthogonal care.
REGISTRATION
The Fundamentals Seminars registration is handled through Eventbrite for your convenience. If you are not an AOI member, please select DC Registration. Students should select Student Registration.. As always, full-time chiropractic college faculty may register free of charge.
Secure your registration today and be part of the most robust Advanced Orthogonal event of the year.