Chapter 9
How many teeth does an adult have
32
The opening in the apical portion of each root is called
Apical foramen
____is the dividing point of a multirooted tooth
Furcation
What is the tooth that has the cusp of carabelli
Maxillary 1st molar
Which premolar is often considered for removal for orth
Maxillary 1st premolars
Which premolar has two roots?
Maxillary first
Which teeth are often congenitally missing
Maxillary laterals
Which permanent teeth are not succedaneous?
Molars
Which teeth play an important role in speech?
incisors
How many teeth are found in each arch of the deciduous teeth
10
Usually by the age of ____, all deciduous teeth have exfoliated
12 years
Correct order from midline backwards
3 central 5 laterals 2 canine 1 premolar 4 molars
All deciduous teeth are usually fully erupted by the age of
3 years
Wisdom teeth can also be referred to
3rd molars
How many quadrants does the oral cavity contain
4
The first primary tooth erupts around what age
6 months
The first permanent tooth usually erupts by the age of
6 years
What is the period of mixed dentition
6-12 years
The surface of the tooth that is on the cheek side
Buccal
______is a liner depression forming a groove that extends from the middle of the buccal surface to the occlusal surface on the tooth
Buccal groove
The root and the crown are divided by the _____
CEJ or cervical line
The anterior teeth are from
Canine to canine
The convex area on the lingual surface of the anterior teeth is the
Cingulum
On the tooth, the ______ refers to where the proximal side of two teeth come together and touch (mesial to distal)
Contact area
Which teeth are often called the cornerstone of the mouth
Cuspids
A space or gap between the teeth is called a
Diastema
On the mandibular cuspid, the _____ cusp slope is longer than the ____ cusp
Distal mesial
_______ is a developmental groove where decay often initiates this imperfect union
Fissure
The shallow rounded or angular depression found on tooth surfaces is the ____________.
Fossa
The dividing point of a multi rooted tooth is called
Furcation
Deciduous teeth have ____ pulp chambers,grater care should be given to them during a coronal polishing so you don't overheat the tooth
Larger
The tooth surface that is on the tongue side
Lingual
Three bulges on the incisal edge of newly erupted central's are called
Mamelons
What is the first permanent tooth to erupt
Mandibular 1st molar
Which tooth has two pulp canals and one in it's roots
Mandibular 1st molar
The tooth that appears to have 4 equally sized cusp in the
Mandibular 2nd molar
The smallest permanent tooth in the dentition is
Mandibular central
the elevated area of the enamel that extends obliquely across the tooth is the ______ ridge
Oblique
Elevated area of enamel that extends obliquely across the occlusal of the tooth is
Oblique ridge
bicuspid
Premolar
______is a shallow, linear groove that radiates from the developmental groove
Supplemental groove
The study of the structure and form of the teeth is called
Tooth morphology
The union of two triangular ridges that produces one ridge across the occlusal surface is ________________ ridge
Transversa
An elevation of enamel that descends from the cusp into the middle area of the occlusal surface is the _______
Triangular
A tooth that has the characteristics of a buccal cusp and two lingual cusps is termed
Tricanineate
The clinical crown is defined as the portion of tooth that is ______
Visible in the mouth
If a tooth has two roots, it is considered
bifurcated
cuspid
canine tooth
Which tooth has a nonfunctioning lingual cusp
mandibular first premolar
The elevated area of enamel that forms the mesial and distal borders of each tooth is the _____ ridge.
marginal
The elevated area of enamel that forms the mesial and distal borders of each tooth is the ________ ridge
marginal
