Frecuenta de proximidad de las raíces del primer molar superior con relación al seno maxilar.

Abstract

Introduction: The maxillary sinus is a pneumatic cavity inside the maxilla that communicates with the nasal cavity through the ostium. In the adult its extension is variable and the topography according to its inferior wall with the dental apices will depend on age and gender, which is necessary to make a correct radiological diagnosis, to avoid accidents in the dental office, based on that in dentistry there are several radiological exams but their limitations are mostly that the images are observed in 2 dimensions, which cannot make a correct diagnosis. The Cone Beam Tomography differs from them because it can be manipulated in 3 dimensions thanks to its axial, sagittal and transverse cuts which makes it suitable for a correct diagnosis. Objective: The objective of this study is to know the frequency of proximity of the roots of the first upper molar with the maxillary sinus, avoiding accidents with endodontic irrigants. Materials and Methods: 250 tomographic samples were obtained, of which 63 met the inclusion criteria being 42 of the female sex and 21 of the male sex, which were evaluated using the NNTVIEWER software and classified using the Jung Classification. Results: The research work showed that the Classification Type 0 (37%) and Type 3 (33%) of Jung were the most frequent and both in the largest of cases were on both sides giving a positive result to the bilaterally. Conclusions: The result of the investigation indicated that the Type 0 and Type 3 of Jung`s Classification are the most frequent and, in more than half of the cases they present bilaterally, although the frequency of protrusion of the roots to the maxillary sinus is not so high, it is It is necessary to be very careful when performing any endodontic maneuver.