Odontogenic sinusitis. Characteristics and diagnosis of sinusitis of dental origin or endo antral syndrome.
Lectures for dental surgeons and otorhinolaryngologists
In: Lima et al. Sinusitis odontogênica: Revisão de litaratura. Rev. bras. Odontol., Rio de Janeiro, v. 74, n. 1, p. 40-4, jan./mar. 2017
The maxillary sinus is considered the largest paranasal sinus, being the first to develop and is located in the maxilla, in the region between the orbital and nasal cavities. It has a pyramidal shape with the base facing the lateral wall of the nasal cavity and the apex facing the zygomatic process of the maxilla. Inflammation of the sinus membrane covering the paranasal cavity is referred to as maxillary sinusitis and its origin is mainly nasal.
However, in some cases a dental infection is a predisposing factor for the development of sinusitis of dental origin. Odontogenic sinusitis accounts for approximately 10% to 12% of cases of maxillary sinusitis. The proximity of the roots of maxillary posterior teeth to the maxillary sinus associated with the presence of inflammation, infection or iatrogenesis of dental origin may affect the integrity of the sinus floor. Moreover, the development of a periapical lesion in teeth whose root apices are close to or extending into the maxillary sinus may cause inflammatory changes in the mucosal lining and subsequently the development of odontogenic sinusitis.
The symptoms of odontogenic sinusitis are similar to non-odontogenic, such as nasal obstruction or congestion, pain or pressure in the face, and headaches. However, when the origin is odontogenic, these symptoms usually manifest on only one side of the face. Other symptoms such as eye pain, post-nasal drip, bad odor, and pain of dental origin have also been reported.
However, despite the similar symptomatology, odontogenic sinusitis should be thoroughly investigated as it differs with respect to microbiology, pathophysiology and management from sinusitis of nasal origin. Thus, defining the etiology of the disease is essential for the proper management of odontogenic sinusitis.
Odontogenic sinusitis.
