The maxillary sinuses Flashcards
why is the maxillary sinus important?
common peri-operative complications
sinus problems can cause symptoms like toothache
what are the paranasal sinuses
air containing sac lined by ciliated epithelium communicating with the nasal cavity
what paranasal sinuses are there?
bilateral frontal, ethmoid, sphenoid and maxillary
another name for the maxillary sinus
antrum of highmore
where does the maxillary sinus drain
middle meatus
importance of maxillary sinus in dentistry
roots of upper molars/premolars closely related the antrum and share a common innervation
dental procedures complicated by problems involving the antrum such as OA communication, roots in antrum, fracture tuberosity, extruded root canal materials
antra pathology
maxillary sinus common pathology
infective sinusitis - bacterial
maxillary sinus common pathology being of dental origin?
10%
what is acute infective sinusitis
bacterial infection which follows a viral infection
symptoms of acute infective sinusitis
pain, tenderness across area, worsens on bending over, without swelling, posterior teeth TTP, post nasal drip, mucopurulent discharge
management of acute sinusitis
mucolytics, inhalation for 2 weeks
inhalations
epinephrine nasal drops
amoxicillin
doxycycline
what is sinusitis
chronic obstruction of osmium
impaired mucous clearance
complications of sinusitis
brain abscesses
orbital cellulitis
cavernous sinus thrombosis
oro-antral communication cause
extraction of posterior teeth, tuberosity fracture, middl third fracture
oro-antral communication symptoms
passage of fluid down nose
passage of air into mouth
alteration of voice
unilateral epistaxis or nasal obstruction
