DENTAL ANATOMY REVIEWER Flashcards
ANTERIOR
used for cutting, esthetics and phonetics
Incisors
why anterior teeth is important in esthetics?
Because it gives a confidence when you smile
Why anterior is important in phonetics?
Because it serves as a function producing F and V sounds when the touch the lower lips
ANTERIOR
used for tearing, known as corner of the mouth they are usually long and pointed
Canine
Why canines are reffered to as eye teeth?
Because when you drew a line straight down from the eye they would be pretty close to the that line
POSTERIOR
It is used for holding food
Premolars
It contribute to chewing as well but lesser extent because they are smaller but can hold food as it being chewed
Premolars
It is used for chewing also for milling and grinding food
Molars
anterior teeth information
A stray crown is found in your office. It is an anterior tooth and has a cingulum that is offset from center. What tooth is it most likely to be?
- Maxillary central Incisor
- Mandibular lateral Incisor
- Mandibular canine
What view is facial or also called labial?
Anterior
What view is buccal aspect?
Posterior
Lingual is also called ___ since its surface is adjacent to the hard palate
Palatal
What view is Incisal? and also known as ___ surface
Anterior
Bitting surface
What view is occlusal?
Posterior
Inside the tooth that can also seen in cross-section
Internal
Pointed or rounded elevation on the crown of a tooth
Cusp
Atypical or rounded elevation or small elevation on a tooth due to extra formation of enamel, deviation from normal
Tubercle
Center of calcification, refers to a center of calcification from which a tooth develops, the separate divisions that came together to form a tooth often in molars which __ will become individual cusps.
Lobes (most teeth develops from 4 lobes)
Small incisal bumps, it appears on the incisal edges of the teeth when they first erupt (childrens). They usually wear away over time due to normal contact with opposing teeth.
Mamelons
If they appear or remain beyond the age of 10 on incisors then that might be a sign of an anterior open bite
Mamelons
Tiny cervical ridges or wrinkles that runs horizontally or mesiodistally on cervical third means towards the gums of the labial surface of the anterior teeth also the reason why they appear due to the incremental enamel deposition as the crown is forming
Imbrication lines
Tiny cervical grooves. Refers to tiny grooves in between those imbrication lines
Perikymata
Widest part of the tooth, most on the facial aspect or the lingual aspect of the tooth
Height of contour
Touches the adjacent tooth
Proximal contact
Space around tooth (V-shaped they allow for passage of food so that food isn’t stuck)
Embrasure
Space or gap between around teeth
Diastema
Linear Depression
Groove
Biggest grooves, they are formed by uniting of lobes during the development of the crown of a tooth
Developmental groove
between 3 facial lobes and lingual lobe
Central groove
Gives the occlusal surface a more wrinkle appearance
Supplemental groove
Shallow rounded or angular depression usually at the coalescence of multiple grooves
Fossa
Imperfect groove, imperfect union between those developmental lobes
Fissure
Imperfect fossa, a place where grooves or fissure come together to create a small pinpoint depression. This is where decay is most often to begin. (THAT’S WHY SEALANTS ARE OFTEN PLACED IN THE __ AND ___)
Pit
Pit and Fissures
Opposite of the groove, linear elevation of enamel on a tooth crown.
Ridge
Elevated areas that form the mesial and distal borders of teeth
Marginal Ridges
Descend from a cusp tip and widen as they run down toward the middle of an occlusal surface
Triangular ridges
Lingual convexity, which is a protuberance on the lingual surface of anterior teeth right next to the gingiva
Cingulum
End of root
Apex
opening at apex, where nerves and blood vessel enter and exit through
Apical foramen
Branch point of root, dividing point
Furcation
Branches of two root
Bifurcation
Branches of three root
Trifurcation
Where cementum and enamel meet
Cemento Enamel Junction / Cervical line
Between CEJ and furcation
Root trunk
Tallest crown
Mandibular canine > Maxillary canine > Maxillary canine
all teeth are WIDER FL (Facial lingually) than MD (mesiodistally) except mx. incisors and md. molars
All teeth have FACIAL HEIGHT OF CONTOUR in cervical third except mandibular molars in middle third
All teeth have lingual HOC in cervical third (anterior) or middle third (posterior) except mand 2nd premolars in occlusal third
Crown height decreases and root trunk length increases as you go distally
Lingual embrasures are larger than facial embrasures
