Abstract
The dento-maxillary anomalies, through their characteristics, ie widespread population mass, the impact that occurs at a personal level and in society and the etiological factors, have become a public health problem, ranking first in dental diseases, prior to dental caries and periodontitis. The prevalence of the dentomaxillary anomalies vary by study population, age group, geographical environment, socio-economic factors and the historical moment of the research. This clinical study was conducted over a period of five years, from 2006 to 2011, on a number of 320 study models, for diagnosis and treatment strategies. The study allowed the assessment of increasing trends of dentomaxillary anomalies, with a frequency of 44% in large cities, while in subjects with caries and periodontitis, the index is 41%. The large percentage differences reported between some authors are mainly due to patients, but also to different research methods, doctors training and errors of interpretation. The orthodontic treatment should answer to the expectations of the patient, thus to restore the morpho-functional integrity and the dentomaxillary functions, with minimal biological sacrifice.