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107- max molars
SCC- Fellman
165
Dentistry
Professional
10/21/2015

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Term
What are two features exclusive to molars?
Definition
buccal pits
oblique ridges
Term
What molar is most associated with buccal pits?
Definition
mandibular 1st molar
Term
What molar is most associated with oblique ridges?
Definition
maxillary first molar
Term
what structures form the oblique ridge?
Definition
distobuccal (DB) triangular ridge and mesiolingual (ML) triangular ridge
Term
Are the molars succedaneous or non-succedaneous
Definition
non-succedaneous
Term
What makes the molars ideal for grinding food? (2)
Definition
wide occlusal surface
prominent cusps
Term
T/F- molars are the largest and strongest crowns in the permanent dentition?
Definition
True
Term
how many roots are found in molars?
Definition
2-3
Term
what is the purpose of multiple roots for the molars?
Definition
increased periodontal support
Term
What root structures make instrumentation difficult? (2)
Definition
furcations
root concavities
Term
What percentage of patients who do not have their 3rd molars removed during adolescence develop complications by 45 years old?
Definition
40%
Term
What are some complications of keeping 3rd molars? (4)
Definition
infections
caries
cysts
perio
Term
What are 5 developmental disturbances for the molars?
Definition
1. mulberry molars
2. Enamel pearl
3. Tubercles
4. Dilaceration of roots
5. Root fusion
Term
What are mulberry molars and what is it caused by?
Definition
-abnormal shaped crown (berry like nodules)
-caused by congenital syphilis
Term
Where on the tooth are enamel pearls most commonly found?
Definition
buccal surfaces apical to the CEJ
Term
What teeth are enamel pearls most commonly found on?
Definition
2nd molars
Term
what is a tubercle?
Definition
accessory cusp
Term
What is a clinical consideration of root dilacerations?
Definition
extraction and removal difficult
Term
Which molar has the highest prevalence of root fusion?
Definition
Maxillary 2nd molars
Term
What is a clinical consideration of root fusion?
Definition
creates developmental grooves on root that are difficult to clean
Term
Which of the maxillary molar roots is the largest and longest?
Definition
lingual root
Term
How many roots do the maxillary molars have?
Definition
3

2 buccal and 1 lingual (palatal)
Term
Are the maxillary molars wider B/L or M/D?
Definition
wider B/L
Term
Are the mandibular molars wider B/L or M/D?
Definition
wider M/D
Term
What are two clinical considerations for the maxillary molars?
Definition
1. sinusitis mistakenly diagnosed for pulpitis
2. Lingual pits susceptible to decay (place sealants)
Term
What is a developmental disturbance for the maxillary molars?
Definition
Concresence
Term
What is concresence?
Definition
union of root structure of 2 or more teeth through the cementum only
Term
When do the max 1st molars erupt?
Definition
6-7 years
Term
How many roots do the max 1st molars have?
Definition
3
Term
How long does it take roots to mature after eruption?
Definition
2
Term
Which tooth has the largest crown in the permanent dentition?
Definition
max 1st molar
Term
What is the largest tooth in the maxillary arch?
Definition
max 1st molar
Term
How many major and minor cusps does the max 1st molar have?
Definition
4 major
1 minor
Term
What is another term for the minor cusp on the max 1st molar?
Definition
cusp of carabelli
Term
Where is the cusp of carabelli found?
Definition
ML cusp of the max 1st molar
Term
Is the cusp of carabelli functional or non-functional?
Definition
non-functional
Term
Which molar is the most likely to have 4 pulp canals?
Definition
max 1st molar
Term
Where is the 4th canal of the max 1st molar usually found?
Definition
mesiobuccal root
Term
How long is the lingual/palatal root of the max 1st molar?
Definition
12 mm
Term
How many furcations does the max 1st molar have?
Definition
3
Term
How many mm from the CEJ is the buccal furcation for the max 1st molar?
Definition
4mm
Term
How many mm from the CEJ is the mesial furcation for the max 1st molar?
Definition
3mm
Term
How many mm from the CEJ is the distal furcation of the max 1st molar?
Definition
5mm
Term
How many buccal cusps does the max 1st molar have?
Definition
2
Term
What structures is found between the buccal cusps of the max 1st molar?
Definition
developmental groove
Term
What is the smallest cusp on the max 1st molar?
Definition
cusp of carabelli
Term
Is the CEJ curvature greater on the M or D of the max 1st molar?
Definition
Mesial
Term
Is the M or D marginal ridge longer for the max 1st molar?
Definition
Mesial
Term
Is the ML or DL cusp outline of the max 1st molar sharper and longer?
Definition
ML sharper and longer
Term
What are 3 clinical considerations for the max 1st molars?
Definition
1. important for development of occlusion
2. lost from perio (past-caries)
3. increased supragingival deposites
Term
The max 1st molars are important in occlusion because they set the bit in which direction?
Definition
horizontally
Term
What are some examples of preventative dentistry that has shifted the cause for lost molars from caries to perio?
Definition
fluoride, sealants, re-care appointments, OHI
Term
Why do max 1st molars have increased supragingival calculus deposits?
Definition
opposite the parotid salivary gland on cheek
Term
What are two features exclusive to molars?
Definition
buccal pits
oblique ridges
Term
Oblique ridges on the molars are found between which two occlusal structures?
Definition
DB and ML cusp
Term
What are 3 features NOT exclusive to molars?
Definition
lingual pit (lateral incisors)
transverse ridge (bicuspids)
marginal ridge (all teeth)
Term
Are max molars wider BL or MD?
Definition
BL
Term
Are mand molars wider BL or MD?
Definition
MD
Term
Are max and mand premolars wider BL or MD?
Definition
BL
Term
What are the only posterior teeth that are wider MD?
Definition
mandibular molars
Term
which tooth is the widest MD of all teeth?
Definition
mand 1st molar
Term
What is the largest tooth in the max arch?
Definition
Max 1st molar
Term
How many roots do the max 1st molars have?
Definition
3
Term
How many major cusps does the max 1st molar have?
Definition
4
Term
Are the major cusps of the max 1st molar equal or different in height?
Definition
equal
Term
How many total cusps does the max 1st molar have?
Definition
5
Term
What is the name for the minor cusp of the max 1st molar?
Definition
cusp of carabelli
Term
What are the names of the 4 major cusps of the max 1st molar?
Definition
MB
DB
ML
DL
Term
The cusp of carabelli is found on which major cusp of the max 1st molar?
Definition
ML cusp
Term
Is the cusp of carabelli a functional or non-functional cusp?
Definition
non-functional
Term
Can the cusp of carabelli be found on any other tooth in the permanent dentition?
Definition
can be on ML cusp of all max molars (but most commonly found on 1st molar)
Term
Can the cusp of carabelli be found on primary teeth?
Definition
yes. Usually max 1st molar
Term
When do the max 2nd molars erupt?
Definition
12-13 years
Term
Is the max 2nd molar succedaneous?
Definition
no
Term
How many cusps does the max 2nd molar have?
Definition
4
Term
Who many pulp canals does the max 2nd molar usually have?
Definition
4
Term
Which root on the max 2nd molar usually has 2 pulp canals?
Definition
MB root
Term
How many pulp horns does the max 2nd molar have?>
Definition
4 or 3 (depending on the number of cusps)
Term
Is the buccal groove of the max 2nd molar located more M or D compared to the 1st molar?
Definition
More distally
Term
What two buccal features of the max 2nd molar are important for sealants?
Definition
buccal groove and buccal pit
Term
Is the buccal pit more significant for the max or mand molars?
Definition
mandibular
Term
Do max or mand molars have a lingual pit?
Definition
max
Term
The max 2nd molar has a lingual groove that ends in which structure?
Definition
lingual pit
Term
How do you tell the L from R max 2nd molar?
Definition
DL cusp
Term
Is the ML or DL cusp smaller for the max 2nd molar?
Definition
DL smaller
Term
How many cusp variations are there for the max 2nd molar?
Definition
2 (3 or 4 cusp forms)
Term
For the 3 cusp form on the max 2nd molar, which cusp is missing?
Definition
DL cusp missing
Term
Is the 4 cusp or 3 cusp form more common for the max 2nd molar?
Definition
4 cusp more common
Term
When do the max 3rd molars erupt?
Definition
17-21 years
Term
Who many cusps does the max 3rd molar have?
Definition
Can have 3 or 4 cusps
Term
Is it more common for the max 3rd molar to have 3 or 4 cusps?
Definition
3 cusps more common
Term
Which molar is least likely to have 4 cusps?
Definition
max 1st molar
Term
Which molar often has 3 cusps?
Definition
Max 3rd molar
Term
Which of the max molars is most likely to have fused roots?
Definition
Max 3rd molar
Term
How many pulp horns and pulp canals does the max 3rd molar have?
Definition
3 roots / 3 canals
Term
How many pulp canals does the max 3rd molar have if the roots are fused?
Definition
1 canal
Term
Which tooth has the greatest variation in occlusal anatomy?
Definition
max 3rd molar
Term
Which tooth has the second greatest variation in occlusal anatomy?
Definition
mand 2nd premolar (U and H form)
Term
Which tooth has the greatest variation in SHAPE?
Definition
max lateral incisor
Term
Which of the max molars is the smallest?
Definition
max 3rd molar
Term
What are the two possible occlusal view shapes for the max 3rd molar?
Definition
heart shape
rhomboid shape
Term
Which shape is most common for the max 3rd molar?
Definition
heart shape
Term
How many cusps does the heart shape max 3rd molar have?
Definition
3 cusps
Term
what cusp is missing for the heart shape form of the max 3rd molar?
Definition
DL missing
Term
what is a clinical consideration for the max 3rd molar?
Definition
impaction and growth into sinus
Term
What are 2 developmental disturbances for the max 3rd molar?
Definition
peg molar
dentigerous cyst
Term
How are dentigerous cysts identified?
Definition
CT
Term
When do the band first molars erupt?
Definition
6-7 years
Term
What is usually the first permanent molar to erupt?
Definition
mand 1st molar
Term
How many cusps does the mand 1st molar have?
Definition
5
Term
What is the 5th cusp called for the mand 1st molar?
Definition
distal cusp
Term
Is the distal cusp of the mand 1st molar functional or non-functional?
Definition
functional
Term
What is the depressed area beneath a furcation area called?
Definition
furcation concavity
Term
Is the distal cusp found on the mandibular 2nd or 3rd molar?
Definition
no
Term
What is the only molar with a 5th distal cusp?
Definition
mandibular 1st
Term
what are the 3 buccal cusps of the mand 1st molar?
Definition
MB, DB, D
Term
what are the 2 lingual cusps of the mand 1st molar?
Definition
ML, DL
Term
Is the distal pit of the mand 1st molar on the buccal or lingual side
Definition
buccal
Term
Does the mand 1st molar have a buccal or lingual groove and pit?
Definition
buccal
Term
which tooth is known for the Y shape groove pattern on the occlusal surface that ends in a buccal pit?
Definition
mand 1st molar
Term
How many roots does the mand 1st molar have?
Definition
2
Term
Which root surface on the mand 1st molar is the least likely to have a root concavity?
Definition
Distal root furcal surface
Term
The distal root furcal surface of which molar is least likely to have a root concavity?
Definition
mand 1st molar
Term
Is the D or M root of the mand first molar usually longer and wider?
Definition
Medial
Term
How many pulp canals does the mand 1st molar usually have?
Definition
3
Term
for the mand 1st molar, which root usually houses 2 pulp canals?
Definition
Mesial root
Term
Which two pulp canals does the Mesial root of the mand 1st molar house?
Definition
MB and ML canal
Term
How many pulp horns does the mand 1st molar have?
Definition
5
Term
How many developmental lobes does the mand 1st molar have?
Definition
5
Term
How many grooves does the buccal surface of the mand 1st molar have?
Definition
2 (B and DB)
Term
How many grooves do the buccal surfaces of the 2nd and 3rd mand molar have?
Definition
1- buccal
Term
Is the mand 1st molar larger MD or BL?
Definition
MD
Term
Which tooth is the widest MD of all teeth in the perm dentition?
Definition
mand 1st molar
Term
Is the lingual or buccal surface of the mand 1st molar smaller?
Definition
lingual smaller
Term
does the crown of the mand 1st molar incline lingually or bucally?
Definition
lingual
Term
What are two clinical considerations for the mand 1st molar?
Definition
buccal pits should be sealed
super-eruption
Term
When do the mand 2nd molars erupt?
Definition
11-13
Term
How many cusps does the mand 2nd molar have?
Definition
4
Term
Are the cusps of the mand 2nd molar equal height or varying heights?
Definition
equal
Term
How many pulp horns and canals does the mand 2nd molar have?
Definition
4 horns
3 canals
Term
Which root for the mand 2nd molar has 2 canals?
Definition
Mesial root
Term
Is the buccal groove and pit of the 2nd mand molar more or less pronounced than the mand 1st molar?
Definition
less pronounced (shallow)
Term
Does the mand 2nd molar have a lingual groove?
Definition
yes
Term
Do all mandibular molars incline lingually?
Definition
yes
Term
Where is the buccal height of contour for the mand 2nd molar?
Definition
cervical 3rd
Term
where is the lingual heigh of contour for the mand 2nd molar?
Definition
middle 3rd
Term
Is the M or D marginal ridge of the mand 2nd molar wider?
Definition
M wider
Term
Does the crown of the mand 2nd molar taper M or D?
Definition
Distally
Term
Are the cusps of the mand 2nd molar equal or uneven in height?
Definition
even
Term
what is the shape of the groove pattern on the occlusal surface of the mand 2nd molar?
Definition
cross
Term
When does the mand 3rd molar erupt?
Definition
17-21
Term
What is the 1st succedaneous tooth to erupt?
Definition
Mandibular central incisor
Term
What is the last succedaneous tooth to erupt?
Definition
Max canine or max 2nd premolar
Term
How many cusps does the mand 3rd molar have?
Definition
4
Term
How many roots does the mand 3rd molar have?
Definition
2
Term
How many pulp horns and pulp canals does the mand 3rd molar have?
Definition
4 horns / 3 canals
Term
What is the most common form for the mand 3rd molar?
Definition
no standard form
Term
What root for the mand 3rd molar has 2 root canals?
Definition
M root
Term
What is the term for excessive amount of occlusal grooves and pits?
Definition
crenelated
Term
Are the lingual or facial embrasures usually larger for the mand 3rd molars?
Definition
lingual embrasures larger
Term
What are 2 clinical considerations for mandibular 3rd molars?
Definition
Impaction
Cone Beam CT scan
Term
Are the mand or max 3rd molars more commonly impacted?
Definition
mandibular 3rd molars more common
Term
What is significant about a cone beam CT scan for the mand 3rd molar?
Definition
mandibular canal of the trigeminal nerve completely enveloped by the roots of the mand 3rd molar
Term
What is a developmental disturbance for the mandibular 3rd molars?
Definition
dentigerous cyst
Term
Is a dentigerous cyst more common for the max or mand 3rd molars?
Definition
mandibular
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