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What is the greater palatine foramen?
The greater palatine foramen (or canal) perforates the rear corner of the hard palate and is formed as the alveolar process of the maxilla meets the horizontal plate of the palatine. This canal transmits the greater palatine vessels and nerve.
Where is the greater palatine foramen usually located?
posterior hard palate
The greater palatine foramen is the opening in the posterior hard palate of the greater palatine canal, which is formed between the articulation of maxillary bone and the greater palatine sulcus of palatine bone. The canal is also known as the pterygopalatine canal.
What is a good landmark for the position of the greater palatine foramen?
The maxillary molars are the best landmarks for locating the GPF.
What goes through the palatine canal?
The greater palatine canal (or pterygopalatine canal) is a passage in the skull that transmits the descending palatine artery, vein, and greater and lesser palatine nerves between the pterygopalatine fossa and the oral cavity.
What is fovea palatine?
Fovea palatinae. are the two anatomical small pits or depressions. in the posterior aspect of the palate, one on each. side of the midline, at or near the attachment of. the soft palate to the hard palate.
How do you give a greater palatine nerve block?
Greater Palatine Nerve Block
- A 25 or 27 gauge short needle may be used.
- Locate the greater palatine foramen.
- Prepare the tissue at the injection site, 1–2mm anterior to the greater palatine foramen.
- Clean and dry the area with a sterile gauze.
- Apply topical anesthetic with a cotton applicator for two minutes.
What Innervates palatine foramen?
The greater palatine nerve (GPN), which is the continuation of the descending palatine nerve, innervates palatal tissues and the palatal gingiva posterior to the canines after passing through the greater palatine foramen.
Where is the Palatine process?
maxilla
The palatine process (Processus palatinus) of the maxilla is a strong bony blade that arises perpendiculary from the nasal surface of the maxilla, near its ventral border; it unites with the palatine process of the opposite maxilla on the median plane through the palatine suture (Sutura palatina).
What does greater palatine block anesthetize?
The greater palatine nerve block is useful for anesthetizing the palatal soft tissues distal to the canine. It is less traumatic than the nasopalatine nerve block because the palatal tissue in the area of the injection site is not as anchored to the underlying bone.
Where does the lesser palatine artery come from?
The descending palatine artery is a branch of the third part of the maxillary artery supplying the hard and soft palate….
| Descending palatine artery | |
|---|---|
| Source | maxillary artery (3rd part) |
| Branches | greater palatine artery, lesser palatine arteries |
| Supplies | hard palate, soft palate |
| Identifiers |
What is palatine Rugae?
The palatine rugae are ridges situated in the anterior part of the palatal mucosa on each side of the medial palatal raphae and behind the incisive papilla (IP). Palatine rugae can be used as internal dental-cast reference points for quantification of tooth migration in cases of orthodontic treatment.
What is the use of fovea Palatinae?
Among the landmarks, fovea palatina are utilized to extend the posterior denture border as an indicator of posterior palatal seal. The spatial relationship of fovea palatina to the posterior vibrating line has variations and is related to the types of soft palate.