Flashcards in Saliva/ oral anatomy Deck (54)
What is the technical term for the mouth?
What are the 2 parts which the mouth is split into?
The inner vestibule- inside the teeth where the tongue sits
Buccal sulcus- between the outside of the teeth and the cheeks
What is the oral cavity lined with?
Moist tissue called the oral mucosa
What is the two different names of the gingivae within the mouth?
The attached gingivae
The gingival crevice
Where is the gingival crevice?
The gym around each tooth
Where is the attached gingivae?
Gum fastener to the alveolar bone
What is the hard palate covered in?
Ridged tissue called the rugae which helps when sucking and talking
What does the soft palate do?
Prevents food from entering the nose during swallowing which has a small projection of tissue in the centre called the uvula
Where is the retro-molar triangle?
On the bone behind the lower third molar
What tissue covers the retro molar triangle?
The molar pad
What bit of tissue can become inflammed during eruption causing peritonitis?
The molar pad
What are tonsils?
Large lymph glands
When infection is present in the tonsils what do they fill up with?
White blood cells called lymphocytes
What do white blood cells try to do?
Stop infection from spreading
What is the name of the strands of tissue which attach to the underlying bone?
Fraenums e.g. under the lip
What is the name for the gap in between the central incisors?
The mid line diastema
What is the name of a small taste bud?
What is the name of a medium taste bud?
What is the name of large taste buds?
Which bit of tissue can cause a tongue to to be tied?
The lingual fraenum
Which part of the tongue can be given drugs for easy absorption?
The underneath (sublingually)
What is the name of the flap of tissue which protects the top of the larynx (airway) from good going down the wrong way?
What is the name for the swelling of the tongue?
What are signs of oral cancer which can be spotted during an exam?
White patches, lump, persistent ulcers
What is the names of the three main salivary glands?
What duct does the parotid gland secrete from?
The stensons duct
What percentage of saliva does the parotid gland secrete?
Where is the parotid gland?
In front of the ear, around the outer army’s if the mandible
Where is the sublingual gland found?
Under the floor of the mouth behind the lower incisors
In the sublingual fossa on the inner body of the mandible
What type of saliva does the parotid duct secrete?
Thin ‘serous’ saliva
Where is the stensons duct?
Opposite the upper molar teeth
What type of saliva does the sublingual gland secrete?
Thick ‘mucus’ saliva through 10-20 sublingual ducts under the tongue
Where is the submandibular gland found?
Inside the angle of the mandible in the submandibular fossa
What type of saliva does the submandibular gland produce?
A medium ‘muco-serous’ saliva
What duct does the submandibular gland secrete from?
The Wharton’s duct
Where is the Wharton’s duct?
Behind the lower incisors
What is saliva made up from?
99% water plus
Inorganic ion- minerals e.g. calcium
Gases- co2, oxygen and phosphate
Extras- bacteria, food, white blood cells
What is the name for reduced saliva flow?
Why may a patient have reduced saliva flow?
-blocked salivary glands
-drugs, like statins
-fear and emotions
-pre end drugs, like atropine
How may saliva flow be increased?
-Thought, site or smell of food
-stimulation of the glands
What are the functions of saliva?
what are the problems with saliva?
-build up of waste
Why just saliva be controlled during dental treatments?
- allow visibility
- protect patient airways
- prevent aerosol and spatter
- prevent contamination
- ensure patient is comfortable
During dental treatment how can you control saliva?
- rubber dam
- absorptions e.g. cotton roll
- rinsing brakes
- air syringe
What is the most common type of oral cancer?
Invasive squamous carcinoma which is painless
What test can be used to used to test for oral cancer?
Using orascreen tolonium Chloride blue dye
What are the two main types of Tumors?
Benign- localised found in one area and doesn’t spread elsewhere
Malignant- this tumor consists of cancer cells which have the ability to spread beyond the original sight
What is oral candidosis caused by?
What does oral thrush look like?
A white film and sore patches occurs on the tongue and roof of the mouth
How do you treat oral thrush?
Antifungal gel, lozenges etc
What is the name for oral candidosis under a denture?
What is the name for oral candidosis around the corners of the lips?
Where does herpes simplex lay?
In the trigeminal nerve