Test Flashcards
What are ridges on teeth? Give some examples.
Linear elevations on the surface of a tooth.
Marginal ridge, Triangular ridge, transverse ridge, oblique ridge
What is a mamelon?
any one of three rounded protuberances o the incised ridge of a newly erupted incisor teeth.
How many lobes does the anterior teeth have?
4 lobes
Fossa
irregular depressio or cavity (ex. central fossa, lingual fossa, triangular fossa)
Sulcus
long depression or valley
Developmental Groove
shallow groove or line between primary parts of a crown or root.
Supplemental Groove
Less distinct groove or line, does not separate primary parts.
What tooth has more variability than any other tooth?
Maxillary lateral incisor.
What are the three categories of the human dentition?
Primary, mixed, and permanent.
What are some geometric shapes of the teeth?
- Lingual face- all teeth are trapezoidal
- Mesial/distal face-anteriors are triangular, Maxillary posteriors are trapezoidal, mandibular posteriors are rhomboidal
How can you tell the difference between your mandibular, lateral and central incisors?
The lateral incisor is somewhat larger.
(Hockey/lacrosse player question)
Maxillary vs mandibular canine.
Mandibular crown appear longer,
Medial cusp ridge shorter
Which tooth has an almost continuous crown tooth outline on medial surface?
Mandibular Canine
What is the largest premolar? Whats is the smallest premolar?
Largest: Max 1st
Smallest: Man 1st
How many roots are visible on the bucccal side of each molar.
The maxillary molars generally 3.
*Maxillary 3rd sometime fuse to some one root.
The mandibular molars generally 2.
What tooth is the cusp of Carabelli generally found?
Small 5th cusp found sometimes on maxillary first molars. Usually toward mesiolingual side
What is the geometric shape of the mandibular posterior teeth at a mesial view stand point?
Rhomboidal
Which molar(s) have 5 cusps?
mandibular 1st molar. Some times 3rd molar.
Which tooth is most likely to have bifurcation on apical third of root?
max 1st premolar.
Which cusp is largest and longest on maxillary second molar?
Mesiolingual cusp
The primary second molar resembles which tooth ?
permanent 1st molar, except smaller.
Compared with permanent crowns, the enamel of primary teeth is _____.
Thinner and has a more consistent depth.
At 9 years of age, how many permanent teeth are in the mouth?
12 primary teeth are left in mouth at age 9.
How soon does a child enter the mixed dentition age?
age 6-7
Which permanent tooth usually erupts to begin mixed dentition?
Mandibular 1st molar.
What is the likely age that a vampire will loose his maxillary canines. What does the tooth fairy give him.
11-12
How many teeth would you expect to seen in a one year old?
8…..All incisors
Which teeth are nonsuccedaneous teeth?
Permanent molars.
nonsuccedaneous-pertaining to those permanent teeth that are not preceded by a primary form (e.g., the molars).
How many mamelons are found on the maxillary central incisors?
3
True or false. The mandibular central incisor is generally the smallest tooth in the dental arch. (permanent teeth)
True.
Which molar has 2 cusp and 3 cusp types?
mandibular 2nd premolar.
Is the maxillary molars wider BL or MD?
Wider BL than MD
Is the mandibular molars wider BL or MD?
wider MD than BL
Which tooth is considered the corner stone of the permanent dentition?
canine is the cornerstone of the mouth.
How many point angles does each tooth have?
4
With one of the the following primary teeth has a crown unlike that of any permanent tooth?
mandibular first molar.
