SAS9: Dento-Osseous Structure Of The Maxilla Flashcards
What are the osseous structures that support the teeth?
Maxilla and mandible
What part of the skull does the maxilla contribute to?
Facial portion of the skull
What major structure does the maxilla form in the mouth?
Roof of the mouth or hard palate
What is the largest paranasal sinus contained in the maxilla?
Maxillary sinus or antrum of Highmore
What are the functions of the maxillary sinus? (List at least three)
- Decreases the relative weight of the front of the skull
- Increases resonance of the voice
- Provides a buffer against facial trauma
What is the canine eminence?
A pronounced ridge corresponding to the roots of the canine tooth
Where is the incisive fossa located?
Mesial to the canine eminence overlying the roots of the incisor teeth
What is the canine fossa?
A deeper concavity located higher and distal to the canine eminence
What is the infraorbital foramen?
The opening of the infra-orbital canal
What is a potential complication of routine exodontia of posterior maxillary teeth?
Maxillary tuberosity fracture
What is the clinical significance of the maxillary tuberosity?
Aids in support and retention of the upper denture
What is the nasal/medial surface of the maxilla directed towards?
Nasal cavity
What does the palatine process form?
Anterior roof of the mouth and floor of the nasal cavity
What are the foramina of Stenson?
Two canals opening laterally into the incisive foramen carrying the nasopalatine nerve and branches of the septal artery
What is the alveolar process?
Makes up the inferior portion of the maxilla surrounding the roots of the maxillary teeth
What are alveoli?
Tooth sockets formed by the facial and lingual plates of the alveolar process
What is the incisive papilla?
An elevation at the anterior end of the raphe of the palate
The maxillary sinus is entered during which surgical technique?
Caldwell Luc surgery
True or False: The maxillary sinus helps in humidifying and heating inhaled air.
True
Fill in the blank: The maxillary sinus regulates _______ and serum gas pressures.
intranasal
What separates the anterior/facial surface from the orbital aspect?
Infraorbital ridge
What is the zygomatic process?
A roughly triangular eminence that articulates with the zygomatic bone
What anatomical feature is found on the inferior portion of the posterior surface of the maxilla?
Maxillary tuberosity
What anatomical structure is located below the canine fossa?
Infraorbital ridge
The frontal process arises from which part of the maxilla?
Upper and anterior body of the maxilla
