Busy. Please wait.
or

show password
Forgot Password?

Don't have an account?  Sign up 
or

Username is available taken
show password

why


Make sure to remember your password. If you forget it there is no way for StudyStack to send you a reset link. You would need to create a new account.
We do not share your email address with others. It is only used to allow you to reset your password. For details read our Privacy Policy and Terms of Service.


Already a StudyStack user? Log In

Reset Password
Enter the associated with your account, and we'll email you a link to reset your password.

Remove Ads
Don't know
Know
remaining cards
Save
0:01
To flip the current card, click it or press the Spacebar key.  To move the current card to one of the three colored boxes, click on the box.  You may also press the UP ARROW key to move the card to the "Know" box, the DOWN ARROW key to move the card to the "Don't know" box, or the RIGHT ARROW key to move the card to the Remaining box.  You may also click on the card displayed in any of the three boxes to bring that card back to the center.

Pass complete!

"Know" box contains:
Time elapsed:
Retries:
restart all cards




share
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.

  Normal Size     Small Size show me how

Dental Anatomy 1

Test One Dental Anatomy

QuestionAnswer
the total number of premolars which are normally present in the entire permanent dentition is 8
the total number of posterior teeth which are normally found in the entire deciduous dentition is 8
during the primary dentition period, the tooth directly mesial to the deciduous canine in each quadrant is the deciduous lateral incisior
the dental tissue known as the periodontal ligament is normally the attachment between cementum and bone
on the crown of a tooth, a small depression which is often the point of union of two or more developmental grooves, describes a pit
Consider a tooth n the mouth which had considerable recession of gingiva towards the apex of the anatomical crown, the cervical line and clinical root. What would be visible? cervical line and anatomical crown only
of the following ridges, those which can be found on every tooth in the mouth are marginal ridges
from the following dental formula, it can be determined that the total number of posterior teeth in an animal is I 2/2 C 1/1 P 1/1 M2/2 12
in the normal order of eruption for man's permanent mandibular teeth... first premolar erupts after the canine
in the normal order of eruption for the deciduous mandibular teeth first molar erupts before the canine
the human mixed dentition period normally ends with the exfoliation of the last deciduous tooth
of the following pairs, the one in which both teeth are succedaneous is #11 and #13
consider a posterior tooth crown which is viewed from the mesial aspect. the three thirds of the crown's medial surface, when it is divided by vertical lines are buccal, middle, and lingual thirds
if an imaginary animal had dent ion which contained only eight molars per quadrant and these molars were continually replaced, what would describe them homodont and polyphyodont
all buccal surfaces are facial surfaces but not all facial surfaces are buccal surfaces (T/F) True
all transverse ridges are made up of triangular rides but not all triangular ridges form transverse ridges (T/F) True
What is a mamelon? ridges of enamel at incisal edge found on permanent incisors
why do you not find mamelons in adults? occlusion wears them away
a line between primary parts of a crown is called an developmental groove/depression
a ____ _____ denotes the junction of three surfaces point angel
a ____ ____ is the junction of two surfaces line angel
to indicate location on a tooth or root, the tooth is arbitrarily divided into _____ from facial/lingual, proximal and occlusal views thirds
each cusp has four ridges emanating from it name them for the lingual cusp of #4 Buccal or triangular distal, mesial, and lingual
the biting edge of #8 is called incisal edge
the surfaces of #5 closest to the midline is called the mesial
the tip of a root is called the... apex
the ridge on #14 that goes from DB to ML is called oblique ridge
the chewing surface of a posterior tooth is called the... occlusal surface
the structure of the roof of the mouth is called the... palate
the surface of #32 which is towards the back of the mouth is called the.... distal surface
the surfaces towards the tongue are called lingual
all surfaces towards the cheek are called... facial or buccal
where two teeth touch (in the same arch) is called the... contact area
the surfaces towards the lip are called labial or facial
the ridge on #30 which extends from the DB cusp to the central groove is called a triangular ridge
the ridge that extends from MB cusp tip to ML cusp tip on tooth 31 is called transverse ridge
the ridge on the oclusal surface of #20 which is towards the midline is called marginal ridge
how many posterior teeth in the mandibular arch 10
how many posterior teeth in the deciduous mandibular arch 4
what are the names of man's two sets of teeth? primary, permanent
write down the teeth by their number that are succedaneous in the human 4,5,6,7,8,9,10,11,12,13 20,21,22,23,24,25,26,27,28,29
which jaw in the human moves? mandible
how many permanent teeth are in man's upper right quadrant? non extracted and all erupted 8
how many deciduous teeth are in man's upper right quadrant? none extracted all erupted 5
what is the name of the bony entity that surrounds and supports all of the teeth alveolar process
name the upper arch maxilla
how many premolars are in the upper arch 4
the midlines are located between which two teeth central incisors
what is the dental formula for man's permanent teeth I 2/2 C 1/1 P 2/2 M 3/3
the fourth teeth from the midline is called permanent first pre molar
tooth C is named primary maxillary right canine
which permanent teeth erupt first mandibular first molars they are not succedaneous
how many premolars are in the deciduous dentition 0
What is human dentition classified as heterodont
Heterodone means comprised of different types, or classes, of teeth to perform different functions in the mastication process
Homodont means all of the teeth are the same in form and type
Diphyodont means separate sets of teeth or dentions
Monophyodont meants only one set of teeth
Polyphyodont means more than two or continuous sets of teeth are developed throughout life
mixed dentition phase is when both deciduous and permanent teeth are present
deciduous dentition is... the teeth of the first or primary dention 20 total teeth
Permanent dentition is... the teeth of the second or adult dentition 32 permanent teeth
Incisors location two teeth of each quadrant which are closets to the midline 4 permanent incisors per arch, total of 8 in the mouth
Incisors function biting, cutting, incising and shearing
Canine location third tooth from the midline in each quadrant (cuspid) two permanent canines per arch, total of 4 in mouth
Canine function cutting, tearing, piercing and holding
Premolars location fourth and fifth teeth from the midline (first and second premolars or bicuspids) 4 per arch, 8 total
Premolars function tearing, holding, and grinding
molars location sixth and seventh and eight teeth from the midline (first, second, and third molars) (6, 12, wisdom teeth) 6 permanent molars per arch, 12 total in mouth
molars function grinding
deciduous dentition formular I 2/2 C 1/1 M 2/2
Palmer notion method is number used with quadrant symbol
FDI system is bionomial system which includes both permanent and deciduous teeth, identifies the quadrant, and whether the tooth is permanent or deciduous, second number identifies the quadrant
Anatomical Crown that portion of the tooth which is covered by enamel
clinical crown tooth which is visible in the mouth may not correspond with anatomical crown depending on soft tissue Can change throughout a person's lifetime
Anatomical Root that portion of the tooth which is covered with cementum
Clinical Root that portion of the tooth which is not visible in the mouth clinical root is an ever changing entity and may or may not correspond to the anatomical root
Enamel hard mineralized tissue which covers the dentin of the anatomical crown of a tooth. Hardest living body tissue but is brittle
Dentin Hard tissue which forms the main body of the tooth, surrounds the pulp cavity and is covered by the enamel in the anatomical crown and by the cementum in the anatomical root. Not directly visible
Cementum the layer of hard, bonelike tissue which covers the dentin of the anatomical root of a tooth
Cervical Line, cement-enamel junction (CEJ) delineates the anatomical crown from the anatomical root of a tooth. the cementum usually overlaps the enamel
cervical line separates the... anatomical crown and the anatomical root
dentoenamel junction or DEJ the internal line of meeting of the dentin and enamel in the anatomical crown of a tooth
Pulp the living soft tissue which occupies the pulp cavity of a vital tooth it contains the tooth's nutrient supply in the form of blood vessels, as well as the nerve supply
pulp cavity the entire internal cavity of a tooth which contains the pulp
Pulp cavity consists of... pulp canal, pulp chamber, pulp horn
pulp canal the portion of the pulp cavity which is located in the roots of the tooth, and may also be called the root canal
pulp chamber the enlarged portion of the pulp cavity which is found mostly in the anatomical crown of the tooth
pulp horns the usually pointed incisal or occlusal elongations of the pulp chamber which often correspond to the cusps or lobes of the teeth
alveolar process the entire bony entity which surrounds and supports all the teeth in each jaw member
alveolus the bony socket or portion of the alveolar process into which an individual tooth is set
periodontal ligament (membrane) the fibrous attachment of the tooth cementum to the alveolar bone
gingia gum or gums or the fibrous tissue enclosed by mucous membrane that covers the alveolar processes and surrounds the neck of the teeth
proximal any surface between two teeth normally only mesial or distal surfaces
line angle line or angel formed by the junction of two crown surfaces, and its name is derived by combining the names of those two surfaces
Point Angle the point which is the junction of three crown surfaces and takes the name of those three crown surfaces
crown artificial thirds vertically (anterior) labial, middle and lingual thirds
crown artificial thirds horizontally incisal, middle, cervical thirds
root artificial thirds cervical, middle and apical thirds
cusps elevated and usually pointed projections of various sizes and shapes on the crowns of teeth usually on posterior and canine teeth
incisors do not posses what cusps
how many cusps for canines one cusp
how many cusps for premolars two or three
how many cusps for molars four or more
tubercles rounded or pointed projections found on the crowns of teeth, not normal findings but not rare
cusp of carabelli a tubercle normally found on the mesial part of the lingual surface of permanent maxillary first molars
cingulum a large rounded eminence on the lingual surface of all permanent and deciduous anterior teeth, which encompasses the entire cervical third of the lingual surface
ridges are linear and usually convex elevations on the surfaces of the crowns of teeth which are named according to their location
marginal ridges linear elevations which are convex in cross section and are found at the mesial and distal terminations of the occlusal surface of posterior teeth less prominent on anterior teeth
triangular ridges linear ridges which descend from the tips of cusps of posterior teeth towards the central area of the occlusal surface.
Transverse ridge a union of two triangular ridges of a posterior tooth, one from the buccal cusp and the other from the lingual cusp and also is composed of two triangular ridges
oblique ridge special type of transverse ridge which crosses the occlusal surface of most maxillary molars of both dentions in an oblique direction from the fistobuccal to the mesiolingual cusps
cusp ridge each cusp has four ridges extending in different directions from its tip
inclined plane sloping area found between two cusp ridges. planes are named by combing the names of the two cusp ridges between which they lie
mamelons small rounded projections of enamel which are found in varying sizes and numbers on the incisal ridges of recently erupted incisors
fossa an irregular usually rounded depression or concavity on the crown of a tooth.
developmental groove a groove or line which usually denotes the coalescence of the primary parts or lobes of the crown of a tooth
supplemental groove an auxiliary groove which branches from a developmental groove, normally not as deep as the primary (developmental) groove
pit a small depressed area where developmental grooves often join or terminate, a pit is usually fond int he deepest portion of a fossa
contact area the area on a proximal surface of the crown that contacts the adjacent tooth in the same arch
lobe one of the primary anatomical divisions of the tooth crown often separated by identifiable developmental grooves
Primary eruption schedule central incisors (6-7 months) Lateral incisors (7-9 months) First Molars (12-14 months) Canines (16-19 months) Second Molars (20-24 months)
during primary eruption schedule what is important to remember? mandibular precedes maxillary
permanent eruption schedule first molars (6 years) incisors (6-9 years) Mandibular canine (9 years) premolars (10-12 years) maxillary canine (12 years) second molars (12 years) third molars (17-21 years)
mastication is process of biting
occlusion is way the mandibular teeth contact the maxillary teeth
primary dentition has how many molars? 2 molars
convention for naming teeth? dentition (primary or permanent), arch (mandibular, maxillary), side (right/left), tooth name
primary teeth are fully erupted between what ages? 0-6 years of age
mixed dentition are from what ages 6-12 years of age
permanent teeth are fully in the mouth 12 and on
primary tooth root... resorbs
tooth lost is... exfoliated
succedaneous is permanent teeth that replace primary teeth
succedaneous applies to... 20 of the permanent teeth, the incisors, canines and premolars NOT THE MOLARS
what teeth are not succedaneous the molars in permanent teeth
complete root formation follows tooth eruption by approximately two years in most patients
alveolus bony socket of each tooth
perodontal ligament fibrous attachment of the tooth cementum to alveolar bone
alveolar process entire bony entity which surrounds/supports the teeth in each jaw
which tooth is not considered proximal? distal of 3rd molars
apical foramen blood supply and nerve come into the pulp
root trunk is... between the CEJ and where the root bifurcate not present on incisors
what are the only anterior teeth with a cusp canines
Created by: Chobchi