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ANTERIOR TEETH, Dyandra Wirahana Hasan - 2106717682, BDS Scenario 5 -…
ANTERIOR TEETH
Canine
Canine is the third tooth from the median line, and is distal to the lateral incisors
Universal number
Maxillary
Left
6
Right
11
Mandibullary
Left
27
Right
22
Canine teeth are the longest teeth in the mouth, with long crowns similar to maxillary central incisors, and single roots which are longer than any other teeth.
Time of eruption
mandibular
4-5 month
Maxillary
4-5 month
Functions
Mastication
helps in slicing, chewing, and seizing food
canines help to support the permanent incisors and premolars
tearing food
Esthetics
canines help to establish normal facial expression
support the lips and facial muscles
Functions as a protective mechanism when a steep overlap of the maxillary and mandibular canine is present
Central Incisor
Maxillary
Maxillary central incisors are centred in the maxilla, one on either side of the median line, with the mesial surface of each in contact with the mesial surface of the other
Universal Number
Maxillary right central incisor - #8
Maxillary left central incisor - #9
The widest mesiodistally of any of the anterior teeth
Mandibular
Universal Number
Mandibular right central incisor - #25
Mandibular left central incisor - #24
They are in contact with the central incisors mesialy and with the canines distally
Mandibular central incisors are centred in the mandible, one on either side of the median line, with the mesial surface of each one in contact with the mesial surface of the other.
Has the narrowest mesiodistal dimension and the smallest crown size of any permanent tooth
Time of Eruption
Primary
Central incisor (i1) : 10 month old [upper], 8 month [lower]
Permanent
Central incisor (I1) : 7-8 years old [upper], 6-7 years old [lower]
Functions
Phonetics
necessary for the execution of certain sounds
Esthetics
not only do the size, shape, colour, and manner of placement of incisors directly contribute to a person's appearance, but they provide the support necessary for the normal profile of the lips and face
maintain an esthetic appearance
Mastication
function by biting, cutting, incising and shearing, thus breaking the food particles into smaller pieces suitable for grinding.
Lateral Incisor
Lateral incisor is similar to the central incisor from all aspects though smaller in size, it is also less symmetrical.
Time of Eruption
Primary
6 month
Permanent
6 years old
The maxillary lateral incisors are a pair of upper teeth that are located laterally (away from midline of the face) from both maxillary central incisors of the mouth and medially (towards the midline of the face) from both maxillary canines.
Functions
Their function is known for shearing or cutting food during mastication, commonly known as chewing.
Definition
it is the part of teeth that made up the anterior side of the maxillary and mandibular
It consist of 2 type of teeth (12 in total maxillary + Mandibular)
Canine
2 canine on mandibular
2 canine on maxillary
Functions
Tearing food
Help in seizing, slicing and chewing food
Incisors
Lateral
2 Lateral incisor on Mandibular
2 Central incisor on maxillary
Central
2 Lateral incisor on Mandibular
2 Central incisor on Mandibular
Function
Used for cutting, biting, and shearing food during mastication
They are of great importance in esthetics and phonation too
Primary and Permanent tooth
Primary
Have no premolars and 3rd molar
In anterior tooth, the roots are narrow mesiodistally
Consisting of 20 teeth, each jaw has 4 incisors (2 central, 2 lateral), 2 canines and 4 molars (2 first, 2 second) (10 teeth).
The enamel is usually thinner (about 1mm)
Permanent
Have premolars and molars
In anterior tooth, the roots are wider mesiodistally
Consisting of 32 teeth, each jaw has 4 incisors (2 central and 2 lateral), 2 canines, 4 premolars(2 first, 2 second), and 6 molars (2 first, 2 second, 2 third) (16 teeth)
Dyandra Wirahana Hasan - 2106717682
BDS Scenario 5