Análisis de la relación Seno-Raíz en piezas posterosuperiores mediante tomografías Cone-Beam, Guayaquil 2016 – 2017.

Abstract

Introduction: Assessing the anatomical relationship between the floor of the maxillary sinus and the roots of maxillary molars and premolars teeth before carrying out different types of treatments, can help us to be prepared for possible complications. Objective: Determine the relationship of posterior maxillary teeth roots with the maxillary Sinus floor, using Cone-Beam CT scans, in the population of the city of Guayaquil. Materials and Methods: We assessed 755 posterior maxillary teeth (330 premolars and molars 425), obtained from 101 Cone-Beam Computed Tomographies (61 males and 40 females). Results: Class 3 was most prevalent in the upper first premolars, with 89,16% on the right arch and 84,81% in the left arch. Class 1 was the most prevalent for first molars, 52,17% on the arcade right and 48,86% in the left arch. Third molars, showed increased incidence of class 3 with 45.45% right arch and 42.86% on the left side. Conclusions: The upper first molars, especially the right side, are more associated with the maxillary sinus, followed by the second maxillary molars. In the first molars, the nearest root was the Palatine and sec ond molar was the mesiobuccal.