Estudo da prevalência e da frequência do posicionamento de terceiros molares inferiores retidos

Abstract

Retained teeth are teeth that are partially or fully enclosed within the bone. It becomes impacted by the length of the bony arch and little room for eruption. Its surgical removal is often necessary and conditioned to the position in which it finds no arch. This is an observational retrospective study through the analysis of panoramic radiographs contained in the medical records of patients who underwent surgery for the removal of retained lower third molars treated at the surgery clinic and at the SECOM extension project, UFJF Governor Valadares Campus Dentistry course in the period of 3 years (2017 to 2019). To collect data, a pre-prepared form with a single observer was used. Data were tabulated and analyzed descriptively. The results of the 135 radiographic analyzes, based on Winter and Pell and Gregory variations, highlighted the vertical angulation (n = 56 / 41.48%) and the AI position as the most prevalent. The predominant age range is between 21 and 25 years (61/44, 85%), which justifies the surgical removal of the lower third molars due to the reduction in risk factors.