Mariana Păcurar (Romania)

Orthodontics, as well as other specialties of Dentistry has experienced a permanent evolution in recent years because of performance in radiological investigation techniques (Cone-beam CT, computerized teleradiography) and technological progress and materials market (hybrid arches, autoligatured brackets, anchorage minimplants).
Orthodontic therapy is increasingly requested by a heterogen populational segment, with ages between 5 and 55 years, seeking a quick and effective treatment, with an emphasis on the improvement of facial aesthetics.
The purpose of this conference is to present a synthesis of the most frequent risk factors in orthodontic   treatment of impacted teeth  and elements related to the adult patient adherence. 
Material and method
The study was realised on a number of 94  patients, aged between 13-18 , with different types of imp0acted teeth and orthodontic treated, by fixed appliances, MBT prescription with mini-implants  anchorage. The authors have analysed periodontal parameters : IP, IHP,IIG  and  the distance between the cement-enamel junction CEJ and the apex in order to determine the risk of root resorption.  The patients were  investigated before starting the orthodontic treatment,  at 6 months after applying the fixed apparatus and at the end of orthodontic treatment.  
Results
In high cases (81%) the orthodontic treatment doesn’t influence negatively the periodontal parameters .In a few cases (7%), we observed a gingival resorption  and 11% of cases had at the end of orthodontic treatment root resorption , especially in palatal impacted teeth.
Conclusions 
Using orthodontic implants as temporary anchorage devices (TDA) has revolutionized the biomechanical orthodontic treatment planning. These  the new type of anchorage, the results are more predictable and treatment duration can be shortened 
Periodontal analysis and alveolar bone evaluation are very important before orthodontic treatment, especially in cases with thin gingival tissue and endocrine  disorders.