UW School of Dentistry


Hollender Symposium – Oral Radiology: The Evolution Goes On. Where Are We Now?

Robert Langlais, DDS; John Ludlow, DDS, MS, FDS RCSED; Alan Lurie, DDS, PhD; Axel Ruprecht, DDS, MScD, FRCD(C); and Gerard Sanderink, DDS, PhD

Saturday, September 6, 2014

Seattle Airport Marriott
Evergreen Ballroom
3201 South 176th Street
Seattle, Washington 98188

This course is designed for oral and maxillofacial surgeons, radiologists, dentists, hygienists and dental assistants.

Download Course Application Form
Register Online (available until two days before the course).

Registration and Continental Breakfast: 8:00am – 8:30am
Course: 8:30am – 4:30pm

TUITION – price includes lunch:
Until September 3 (after, $25 more)
$224/Current Dental Alumni Member

* This course is eligible for a 10% tuition discount if you are a current member of the UW Dental Alumni Association.

CREDITS: 7 hours

The University of Washington gratefully acknowledges the generous educational grants made by our Gold Level Sponsors in support of this program.

Morita logoNWR logoplanmeca logoi-cat logo

and our Silver Level Sponsor in support of this program.
XDR logo

Course Description

Join us for a day exploring the latest information in oral radiology with presentations from five experts in the field. With a vast array of topics, you are sure to come away with new information and techniques to put into practice Monday morning. We will also celebrate the contribution of Lars Hollender, DDS, PhD to the world of oral radiology, and his reaching the milestones of his 80th birthday and 30 years of service at the University of Washington.

Robert Langlais, DDS – Head and Neck Pathology

This presentation will review the imaging characteristics of representative pathology arising in various anatomic regions of the head and neck. These may be included in the CBCT scan depending on the volume size and location selected by the user. The anatomic regions to be covered will include the nose, sinuses, airway, clivus, cervical spine, salivary glands, cystic lesions of the neck, cranial calcifications, temporal bone and orbit. Appropriate follow-up imaging modalities will be illustrated as needed.

Course Objectives: As a result of attending this lecture, you will be able to:

  • Review example pathologies in various anatomic regions potentially included in a CBCT scan.
  • Interpret CBCT imaging features of selected pathologies as they affect specific anatomic regions.
  • Recognize additional diagnostic imaging modalities obtainable by follow-up imaging modalities

John Ludlow, DDS, MS, FDS RCSED – Imaging in Dentistry Today: Optimizing Diagnostic Opportunities – Minimizing Potential Risks

What are the risks of maxillofacial radiographic imagine?  Are concerns about risks from diagnostic imaging justified?  Which dose reducing strategies are most effective and cost-effective?  These are a few of the questions commonly asked by dentists that will be addressed in this presentation.  Other questions include:

  • How is risk related to dose?
  • How do we calculate dose?
  • Why do I hear seemingly contradictory statements that dental imaging has become either more or less risky?
  • What doses are associated with different techniques used for dental imaging?
  • What can we do to reduce patient dose?
  • How should I discuss risk with my patients or their parents?

Course Objectives:  As a result of attending this lecture, you will be able to:

  • Characterize the risks from ionizing radiation that result from dental and maxillofacial examinations
  • Understand where dental x-ray exposure fits in with other sources of exposure to ionizing radiation as a population risk
  • Describe options in radiographic equipment (with emphasis on cone beam technology) and how these influence image and dose characteristics
  • Explore ways to reduce the risks from diagnostic imaging through radiographic selection criteria, patient shielding, and technical factor selection.
  • Explain how to talk about x-ray risks and benefits with patients and parents

Alan Lurie, DDS, PhD – Detection of Osteoporosis by Quantitative Imaging: History and Oral and Maxillofacial Imaging Contributions

This lecture will introduce the nature of the global problem of osteoporosis, trace the use of quantitative imaging in the detection and classification of osteopenia and osteoporosis, and examine the contributions of various types of Oral and Maxillofacial (OMF) imaging to the detection and treatment of this disease.

Course Objectives:  As a result of attending this lecture, you will be able to:

  • Discuss the nature of osteoporosis, its adverse outcomes, and the history of quantitative imaging in the detection and characterization of the disease
  • Recognize the contributions of various types of OMF imaging, including intraoral, panoramic and cone beam CT imaging, on the diagnosis and staging of osteoporosis

Axel Ruprecht, DDS, MScD, FRCD(C) – Anatomy on CBCT: The Roadmap of the Maxillofacial Region and Surroundings

This lecture will show the major anatomical structures seen on cone beam CT images in the standard planes and reconstructions as the person interpreting the images would encounter them on going through the dataset.

Course Objectives:  As a result of attending this lecture, you will be able to:

  • Appreciate the complexity of the head and neck osseous anatomy on CBCTs
  • Recognize the appearance of the various anatomical structures seen on multiplanar reconstructions
  • Discuss the appearance of the various anatomical structures on panoramic and orthoradial reconstructions

Gerard Sanderink, DDS, PhD – Cephalometric and Panoramic Radiography:  Nothing New?

Since the introduction of digital imaging in Cephalometric and Panoramic Radiography, more possibilities became available to reduce doses even more than most of us are aware. In Direct Digital Panoramic Radiography new tools made it possible to influence the position and shape of the image layer. For a better understanding of the characteristics, a revision of the definition of the “Focal Trough” is needed and demonstrated with help of animations.  For panoramic images, although spectacular improvement in image quality is obtained, the diagnostic value is still not comparable with intraoral radiographs. Distortion in these new images is also a recurrent problem which makes them inaccurate for measurements.  Knowledge of image formation also gives a better understanding of the reproduction of anatomical structures on these panoramic images. A CAL software program was developed to improve these skills and will be demonstrated.

Course Objectives:  As a result of attending this lecture, you will be able to:

  • Achieve dose reduction in Cephalometric Radiography
  • Reduce patient dose in Panoramic Radiography in a simple manner
  • Share a better understanding of the so called “Focal Trough”
  • Discuss the possibilities of direct digital panoramic machines
  • Recognize the limitations of the image quality
  • Identify anatomical landmarks on panoramic images


ROBERT LANGLAIS, DDS is a Professor at the University of Texas Health Science Center in San Antonio, and succeeded Dr. Hollender as Secretary-General of the International Association of DentoMaxillo Facial Radiology (IADMFR). Dr. Langlais has published several textbooks on oral and maxillofacial radiology and presented over 500 courses and lectures in Oral and Maxillofacial Radiology.

JOHN LUDLOW, DDS, MS, FDS RCSED is a professor in the radiology section of the Department of Diagnostic Sciences and General Dentistry at the UNC School of Dentistry. Dr. Ludlow was an AAOMR Weurhmann Prize winner for the best radiology research paper in 2006-7 and 2010-11. His current research focuses on radiation dose and risk from dental imaging.

ALAN LURIE, DDS, PhD is Professor and Chair of the Oral and Maxillofacial Diagnostic Sciences and Oral and Maxillofacial Radiology at the University of Connecticut. Dr. Lurie is current president of AAOMR, past president of ABOMR and is co-chairing an NCRP committee that is writing a new Radiation Safety in Dentistry report. Among other accomplishments, Dr. Lurie is a renowned Macaw conservationist and concert pianist.

AXEL RUPRECHT, DDS, MScD, FRCD(C) is Professor in the Department of Oral Pathology, Radiology & Medicine and a Professor in the Department of Anatomy and Cell Biology at the University of Iowa. He is past president of the AAOMR, ABOMR, and Canadian Academy of Oral and Maxillofacial Radiology. Dr. Ruprecht was instrumental in getting OMFR recognized as a specialty both in Canada and in USA.

GERARD SANDERINK, DDS, PhD is Professor at ACTA (Academisch Centrum Tandheelkunde Amsterdam), and is a current board member and Secretary of IADMFR Research Award, Secretary General IADMFR Academic Centre for Dentistry Amsterdam and past Secretary General of the International Association of Dento-Maxillo-Facial Radiology (IADMFR).

ada cerp logo

The University of Washington is an ADA CERP Recognized Provider.
ADA CERP is a service of the American Dental Association to assist dental professionals in identifying quality providers of continuing dental education. ADA CERP does not approve or endorse individual courses or instructors, nor does it imply acceptance of credit hours by boards of dentistry.

acde logo

The University of Washington is a member of the Association for Continuing Dental Education.

University of Washington designates this activity for 7 continuing education credits.