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About Dr. Randolph Myerson
Expertise
Please limit your inquiry to questions about orthodontics (braces) and children's dentistry. I am both an Orthodontist and a Pediatric Dentist, having been trained in both of these dental specialty fields. Orthodontics is the dental specialty that treats problems of tooth, bite and jaw alignment using braces and removable appliances. Pediatric Dentistry is the dental specialty also known as dentistry for children, which deals specifically with the dental problems of this special age group from infants to adolescents. I am also experienced in Forensic Dentistry, the application of dentistry to law enforcement and identification using dental records.

Experience
I have been in the private practice of orthodontics and pediatric dentistry for over 20 years. Prior to that I served for three years on the Cleft Palate and Cranio-facial Reconstruction team at Children''s Hospital of Philadelphia and was an Assistant Professor of Dentistry at University of Pennsylvania School of Dental Medicine. I also served as a dentist in the U.S.Air Force, stationed at Andrews AFB in Washington, DC.

Organizations
I am a Fellow in the American Academy of Pediatric Dentistry, and a member of the American Association of Orthodontics, as well as a member of the American Dental Association and the Dental Society of the State of New York.

Education/Credentials
I received my BA in Biology from Frankin & Marshall College in 1969, and my dental degree from University of Pennsylvania School of Dental Medicine in 1973. In 1978 I received both my Certificate in Orthodontics from University of Pennsylvania School of Dental Medicine, and my Certificate in Pediatric Dentistry from Children''s Hospital of Philadelphia after completing a three year Teaching Fellowship in Orthodontics and Pediatric Dentistry in 1978.

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Dentistry - how to measure teeth rotations from the casts

Expert: Dr. Randolph Myerson - 11/2/2009

Question
hi dr.randolph...i`m a dental undergrad student studying at cairo college,, i`ll really appreciate it if u help me with my question.. we have been teached that the circumfrential fibrotomy procedure is valuable in reducing rotational relapse of orthodontically derotated teeth..one of our doctors gave us a goup of casts belong to the patients who underwent that procedure after finishing the ortho treatment...i want to find out how huch the fibrotomy procedure is beneficial in reducing relapse..could you suggest for me a simple & accurate way to measure the degrees of rotation of the teeth on the casts( pre & post the fibroto fibrotomy procedure)...thank you so much for your valuable answer

Answer
If I understand your challenge properly this method may provide you with a standard means of measurement. Place the cast on a copy machine and make an image of the occlusal surface of the cast. Then draw a curve on the paper which represents the best fit arch form for the dentition. Next draw a line on the subject tooth which represents the labio-lingual axis. You can then measure the angle where the tooth axis line intersects the arch form line.

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