Dr. Craig  Barrington DDS

Tooth Clearing: Observations, Technique, and Photography

Saturday, July 7, 2012 | Time: 11:00AM - 1:00PM PDT
CDE Credits: 2.00 Teaching Methods: Lecture; Live Online or Self-Instructional Video Length: 2 hours
PDL is an ADA CERP recognized provider. PDL designates this activity for 2.00 hours continuing dental education credit.
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  • Webinar Title: Tooth Clearing: Observations, Technique, and Photography
  • Presenter: Dr. Craig Barrington
  • Date Recorded: July 7th, 2012
  • Duration: 2 hours
  • CDE Credits: 2 CDE credits will be issued by Pure Dental Learning



Art, science and utilization of clearing teeth for evaluation of endodontic anatomy and failed endodontic treatments. The program will have a case presentation demonstrating the value of post operative clearing of a failed endodontic case.

Course Outline

I. History

  • Founders - Spalteholz/Lenhossek - "Spalteholz
  • Technique" for tissue clearing- significant
  • researchers of dental tooth anatomy

II. My personal History
III. Methods-

  • Castellucci Method
  • Carr Method
  • Barrington Method

IV. Philisophical Basis for Clearing/Diapnonization

  • Miscible
  • Index of Refraction\refractive index

V. Scientific concepts and new methods
VI. Limitations
VII. Photography

  • Equipment
  • Technique


  1. Discuss the history of clearing and some of the challenges and methods of the past
  2. Expose the concepts and science of clearing/diaphonization . The new methods available and limitations
  3. Show a method of photographing clear tooth specimens.

Course Evaluation

See Below

Resources and References

See Below

Supplementary Material

If provided, available when logged in.


Dr. Craig Barrington has no relevant commercial relationships.

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Dr. Craig  Barrington DDS

Dr. Craig Barrington

[javascript protected email address]
401 N Hwy 77 Ste 10
Waxahachie, TX 75165
United States


Dr. Barrington received his DDS from the University of Texas Health Science Center at San Antonio in 1996. He has lectured to a variety of dental societies and study clubs and has written and co-written a number of articles for various dental journals. Dr. Barrington is a member of Omicron Kappa Upsilon. He is an associate member of the American Academy of Endodontists. He is an adjunct clinical professor in the AEGD program at the A&M College of dentistry. He has a patent pending in clearing and diaphonization. He has maintained a practice in Waxahachie, Texas for the past 18 years.

Resources and References

1. Dental Cosmos - Volume LV - 1913 - p.374-378
2. Dr Vick Williams - Professor Emeritus, UTHSCSA - Faculty of the Department of Cellular and Structural Biology
3. http://en.wikipedia.org/wiki/Mih%C3%A1ly_Lenhoss%C3%A9k
4. "Studies on the Anatomical Structure of Root Canals in Human Dentition by a Method of making the tooth substance transparent." (1928)
5. http://www.forp.usp.br/restauradora/Teses/Ranjana/Ranjna.htm
6. The Art of Examining and Interpreting Histologic Preparations: A Laboratory ... By William J. Krause
7. http://www.studiopollex.com/biologydiaph.html
8. http://en.wikipedia.org/wiki/Miscibility
9. http://en.wikipedia.org/wiki/Refractive_index
10. http://en.wikipedia.org/wiki/List_of_refractive_indices
11. http://en.wikipedia.org/wiki/Collagen
12. http://www.drjaber.com/about_us/herbranson.html


Original Release Date: July 7, 2012
Review Date: TBD
*Expiration Date: July 7, 2015

*Self-instructional activities are reviewed at least once every three years, or more frequently if indicated by new scientific developments, to ensure that content is current and accurate.

CDE Credits

PDL is an ADA CERP recognized provider
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