Buccal Cavity Flashcards
Total number of incisors
8
Total number of canines
4
Total number of molars
12
Total number of premolars
8
Total number of temporary teeth
20
Dental formula for permanent teeth
2 1 2 3/ 2 1 2 3
Which teeth appear only once in life
12 teeth appear just once. 8 pre molars and 4 molars
Dentition for teeth that appear once in life
0 0 2 1 / 0 0 2 1
Wisdom tooth no./ vestigial and total.
Third molar (total 4 wisdom teeth)
Which types have one root?
Total 18 teeth have one root.
Incisors and Canines (12) and some premolars (6) as well.
2nd upper premolars (2) and lower premolars (4)
Total number of teeth which have one root
18 i.e. 8 incisors and 4 canines and 6 pre molars (two 2ND upper and all four lower ones)
Which pre molar has two roots? How many?
Upper first, hence, two premolars have two roots
How many pre molars have one root?
6 premolars have one root, i.e. 2 upper second and 4 lower (1st and 2nd)
Which teeth have three roots? How many?
Molars or specifically, upper molars have three roots. 6 molars have three roots.
How many molars have two roots?
6 lower molars have two roots.
Describe the root structure in pre molars.
We have a total of 8 pre molars.
Out of them, the (2) 1st upper PM have two roots while the rest, (6) have one root i.e.
the (2) 2nd upper PM
(4) all lower PM
Describe the root structure for molars.
Molars can have three or two roots. There are total 12 molars so the upper (6) have three roots while the lower (6) have two roots.
How many teeth have two roots?
8 teeth have two roots.
(2) upper first one PM and and lower (6) lower M
How many teeth have one root?
Incisors (8), canines (4) and some PM (6) have one root. Total: 18
*PM: 2nd upper and 4 lower
Teeth with 3 roots are present only in?
The upper jaw. The upper 6 molars.
How many temporary teeth do we have? Give dentition.
20 temporary teeth.
2 1 0 2 / 2 1 0 2
i.e. all our incisors (8) and canines (4) and two thirds of our molars (8)
Molars: first and second (third molar is wisdom tooth, apparent that isn’t temporary)
Which type of teeth appear only once? Number?
A total of 12 teeth appear just once in life, i.e., they are monophyodont. The pre molars (8) and the third molars (4) appear only once in life.
What are the two parts of mouth
Vestibule and Buccal cavity
What is the name and function of the process which hangs from the surface of the palade
Uvula, it helps in closing the internal nares to prevent entry of food in nostrils
An inverted V shaped furrow (A) divides the tongue into two parts (B and C) and a junction (D) is observed at the two parts of this furrow which is a remnant of a duct (E) seen during foetal life.
(A) Sulcus terminalis
(B and C) Oral and Pharyngeal
(D) Foramen Caecum
(E) Thyroglossal duct
Name the largest, smallest, most and least numerous, vestigial and one special shaped papillae
Largest and least numerous: circumvallate
Smallest and most numerous: Filiform
Vestigial: Foliate (seen in rabbits)
Special mushroom shaped: Fungiform (seen on lateral and anterior sides)
Name the taste receptors on the tongue stimulated by chilly
Haha trick question.
No taste buds for chilly flavour. (The pain receptors get stimulated.)
