absolutely. in an upper first molar if the dentist goes too far. however, i dont see this as being a very common thing, even when the apex of the roots are really close to the maxillary sinus.
but i doubt it would cause any serious damage. possibly an infection, which can be covered with antibiotics
The cranial cavity is the primary cavity of the skull; it contains the brain. In addition, the skull has four other pairs of cavities called sinuses. They are the frontal sinuses, maxillary sinuses, sphenoid sinuses, and ethmoid sinuses.
medullary cavity
An alar canal is a bony tunnel through the basisphenoid bone of the skull, through which the maxillary artery and nerve pass.
Canal of Schlemm
An alar foramen is the opening at either end of the alar canal, the bony canal through the basisphenoid bone of the skull, through which the maxillary artery and nerve run.
Seems that infection from the root canal of the teeth have passed to your maxillary sinus near your facial nerve branches. Better consult your physician.
The ventricles are cavities within the brain that connect with each other, with the subarachnoid space of the meninges and with the central canal of the spinal cord.
The canal era occurred during the 1820-1850
The construction of the English canal system during the industrial revolution.
the burr truss canal
The Soo canal was used during the civil war by sending war supplies through the canal to be sent to different states.
Health measures during the construction of the Panama Canal happened in 1904.