TREATMENT EFFECTS
OF R-APPLIANCE IN VERTICAL GROWING PATIENTS-CASE SERIES
Rahman Showkatbakhsh
DDS, PhD, Associate Professor
Department of Orthodontics, Shahid Beheshti University of Medical Sciences,
Tehran, Iran
CV
Prof. Rahman Showkatbakhsh (DDS) has finished his post-graduate
training in the school of dental and oral surgery, Colombia
University, in New York City in 1981. He has established the first
post-graduate program in orthodontics in school of dentistry, Shahid
Beheshti medical sciences university. Currently, he is associate
professor of the same orthodontic department and director of
Orthognathic surgery fellowship.
Questions
What was the mean age of the patients in this study?
q a. 23 years;
q b. 18 years;
q c. 28 years;
q d. 10.6 years.
SNB significantly increased from 72.8° to?
q a. 76.8°
q b. 76°
q c. 75°
q d. 77°
The Jarabak index increased by?
q a. 1%
q b. 1.5%
q c. 1.7%
q d. 2%
Was R-appliance successful in moving the mandible forward?
q a. Yes, in vertical growth pattern patients without proclination of the lower incisors.
q b. Yes, in horizontal growth patterns;
q c. Yes, with proclinati