User:Ahmad Sheibani Nia/sandbox

Ahmad Sheibani Nia is an Iranian orthodontist and his innovation method and system as an application was cited in USPTO patent.

Biography and education
Ahmad Sheibani Nia was born in Varamin in a small city near Tehran in 1959. He received his Doctor of dental surgery degree (D.D.S.) from Shahid Beheshti University of medical sciences in 1985 and Orthodontics degree in 1998. He also received his 3-year fellowship of orthognathic surgery and craniofacial syndromes from the same university in 2014.He is Associate Professor of Orthodontic Department.

Sheibani Nia is a member of the Iranian Board of Orthodontics.

Innovative treatment
Class III malocclusion in adult patients is considered to be one of the most difficult and complex orthodontic and Orthognathic surgery problems to treat. Individuals with class III malocclusion frequently show combinations of skeletal and dentoalveolar components. Several distinct cephalometric features, such as a short anterior cranial base length, acute cranial base angle, a short and retrusive maxilla, proclined maxillary incisors, retroclined mandibular incisors, an excessive lower anterior face height and obtuse gonial angle, are reported in class III patients. Skeletal class III malocclusion is either associated with maxillary retrusion, mandibular protrusion, or a combination of the two.

In the past, the problem of CL III was considered to be originated of the mandibular prognathism, but recently the orthodontics literature indicated that most CL III problems resulted of underdeveloped maxilla on 3-Dimension. Later investigation by proffit W R. and white P. showed that 40% of the CL III population exhibited only maxillary deficiency, 42% exhibited maxillary deficiency with mandibular prognathism and 18% both of them.

In 1940s, protraction facemask device was introduced for treatment the patient with age of less than 10 years old. The application of protraction facemask therapy to the maxilla and the maxillary dentition produces significant tension in the circummaxillary sutures and the maxillary tuberosity regions. The tension produced within the sutures is thought to cause an increase in vascularity in the region with a concomitant differentiation of the cellular tissues resulting in an increase in osteoblastic activity in the region.

Another kind of orthodontic device for treatment of class III malocclusion is a maxillary distractor. This orthodontic system made modifications in the distance between the maxilla and zygoma bones]] in order to advance the maxilla. One disadvantage with maxillary distractor is that the patient has to be given general anesthesia to have surgical cuts to separate the pterygomaxillary suture. Maxillary protraction device with chin-cup needs patients' cooperation which is not needed in the system and method disclosed in our claims. In another patent, a compact maxillary distractor is fixed to the maxillary and zygomatic bones in order to advance the maxilla. The patient has to be under general anesthesia to have surgical cuts to separate the pterygomaxillary sutures. The LeFort 1 osteotomy was first used to correct dentofacial deformities in 1921, when Herman Wassmund repositioned the maxilla after osteotomy and postoperative orthopedic traction.

Hence there is a need to develop a simple, efficient, and improved orthodontic device for improving the growth of the maxilla in 3 dimensional after the growth is ceased in sagittal direction. Further there is a need to improve a forward movement of the maxilla and to correct an abnormal lateral relationship and to have a good vertical control of the patient to exhibit a horizontal growth pattern. It is recommend to use Tongue Plate & Hyrax Appliance combined with Parasagittal osteotomy in adult patients with CL III malocclusion due to maxillary deficiency. in this system disclosed herein, there is no need for general anesthesia and osteotomy for loosening of pterygomaxillary suture.

Honors and Awards
President of First International Memorial of HAL Congress

Memberships
•	World Federation of Orthodontists. (WFO)

•	America Association of Orthodontists. (AAO)

•	European Orthodontic Society. (EOS)

•	Iranian Association of Orthodontists. (IOA)