Quiz 2- Review Flashcards
Primary teeth are __________ in overall size and ____________ dimensions
smaller, crown
Primary teeth have markedly more ____________ cervical ridges and are ___________ at their “necks”
prominent, narrower
Primary teeth are __________ in color
Lighter
Primary posterior teeth (molars have root that are more _______________
widely flared
Anterior Root Comparison -
The roots of primary anterior teeth are __________ & ________ compared to their respective crowns.
narrower and longer
Anterior Root Comparison -
__________ roots with _______ crowns produce a marked difference in the cervical area
Narrow, wide
Incisal View- Primary Maxillary Central Incisor
__________ measurement is greater than the FL.
MD
Incisal View- Primary Maxillary Central Incisor
__________ ridge is centered over the main bulk of the crown & is respectively ___________, except for a slight curvature to the lingual on the distal portion.
Incisal, straight
Incisal View- Primary Maxillary Central Incisor
____________ surface is much wider (and smoother) than the __________ surface
facial, lingual
Incisal View- Primary Maxillary Central Incisor
___________ surface tapers (gets smaller) towards the cingulum
Lingual
Incisal View- Primary Maxillary Central Incisor
____________ & __________ surfaces are respectively wide, enabling good contact with the adjoining teeth
Mesial and Distal
Facial View - Primary Maxillary Canine
Crown outline form?
Diamond or arrow shape
Facial View - Primary Maxillary Canine
The cusp position is slightly _________ of the center of the tooth
Distal
Facial View - Primary Maxillary Canine
__________ cuspal ridges is slightly longer than the ________ cuspal ridges
Mesial, distal
Facial View - Primary Maxillary Canine
The ___________ contact locations are at the same level.
proximal
Facial View - Primary Maxillary Canine
________________ location is slightly on the distal half.
Facial ridge
Facial View - Primary Maxillary Canine
The root length is ________ that of the crown.
twice
Facial View - Primary Maxillary Canine
The root displays a curvature toward the _________
Distal
Mesial View - Primary Maxillary First Molar
The crown tapers significantly towards the ___________
occlusal
Mesial View - Primary Maxillary First Molar
Cusp length: ________ cusp is taller & more pointed than the ________ cusp
ML, MF
Mesial View - Primary Maxillary First Molar
The lingually positioned __________________ ridge groove is present
mesial marginal
Mesial View - Primary Maxillary First Molar
The _____________ is straight across, except for a slight occlusal curvature on the facial half of the crown
cervical line
Mesial View - Primary Maxillary First Molar
The facial cervical ridge is extremely?
convex
Mesial View - Primary Maxillary First Molar
The proximal contact is located in the ___________ center of the tooth
FL
Mesial View - Primary Maxillary First Molar
How many root are evident from this view?
2 - the MF root is super imposed over the DF rooth
Mesial View - Primary Maxillary First Molar
The ___________ root inclines out beyond the ___________ confines of the crown and curves in the apical third.
lingual, lingual
Mesial View - Primary Maxillary First Molar
The bifurcation between the ___________ and __________ roots is almost at the location of the cervical line
MF, lingual
Occlusal View - Primary Maxillary Second Molar
How many cusps on this tooth?
5
Occlusal View - Primary Maxillary Second Molar
List cusps from largest to smallest.
ML MF DF DL 5th (Cusp of carabelli)
Occlusal View - Primary Maxillary Second Molar
What is the outline form?
“somewhat rhomboidal”
exhibiting a distal crown convergence
Occlusal View - Primary Maxillary Second Molar
What marginal ridge is prominent?
Both
Occlusal View - Primary Maxillary Second Molar
The ___________ form is quite massive, especially in comparison to the primary maxillary first molar
oblique ridge
Occlusal View - Primary Maxillary Second Molar
There is a distinct _______________ involving the triangular ridges of the medially positioned cusp
transverse rigde
Occlusal View - Primary Maxillary Second Molar
The major fossa on the tooth?
Central and distal fossae
Occlusal View - Primary Maxillary Second Molar
The minor fossae on the tooth include?
Mesial and distal triangular fossa
Occlusal View - Primary Maxillary Second Molar
The distal oblique groove groove, when traveling onto the lingual surface is called the?
lingual development groove
Occlusal View - Primary Maxillary Second Molar
The transverse groove of the oblique ridge crosses the oblique ridge and connects the?
central pit with the distal pit
Distal View - Primary Mandibular First Molar
All four cusps are visible from?
Distal View
Distal View - Primary Mandibular First Molar
The facial crown outline is lingually positioned _______________, in comparison to the ___________
DF cusp, MF cusp
Distal View - Primary Mandibular First Molar
The height of curvature of the cervical line is
slightly curved
Distal View - Primary Mandibular First Molar
What roots are visible form this view?
Both
Distal View - Primary Mandibular First Molar
The distal root slightly converges?
To the apex
Distal View - Primary Mandibular First Molar
There is a developmental root surface depression on the?
Distal
Ecoptic Eruption
- A condition that is exhibited when a tooth erupts or emerges in the wrong position within the arch.
- Usually seen in the F or L direction
Maxillary lateral incisors are ectopically erupted towards?
primarily the lingual side
Maxillary canines are ectopically erupted towards?
the facial side
A tooth is a different position then it is suppose to be
Transposition (seen in canines - maxillary the most)
Most common rotated tooth
maxillary second premolar > maxillary incisor > maxillary first premolar
Dens-in-Dente
Also known as dens invaginatus, is a condition found in permanent teeth
- the outer enamel surface is folded inward
- tissue is wrapped like a croissant
What for of dens-in-dente exist?
coronal and radicular
What is dens-in-dente considered?
a malformation of teeth probably resulting from an infolding of the dental papilla during tooth development
What tooth typically displays dens-in-dente?
maxillary lateral incisor
Dentinogenesis Imperfecta
Condition causes teeth to be discolored (most often a blue-gray or yellow-brown color)
and may present with a translucent apperance
The teeth of dentinogenesis imperfecta
teeth have a weaker construct than normal teeth, making them prone to degradation and eventual loss
- can affect both permanent and primary
Radiographically dentinogenesis imperfecta
exhibit a partial or total absence of pulp chambers and root canals
Facial Aspect Measurement & Geometry - Permanent Maxillary Central Incisor
The __________ length (10.5 mm) is greater than the _________ width (8.5 mm) which is greater than the _________ depth (7.0mm)
CI > MD > FL
Facial Aspect Measurement & Geometry - Permanent Maxillary Central Incisor
Crown outline?
Trapezoid with the shorter parallel side at cervix
Facial Aspect Measurement & Geometry - Permanent Maxillary Central Incisor
Crown width at contact areas?
are greater than at cervix
Lingual Aspect - Permanent Maxillary Central Incisor
The cervical outline is more ____________ that what is seen on the ____________ aspect
apically-positioned, facial
Lingual Aspect - Permanent Maxillary Central Incisor
The lingual fossa in the incisal one-half of the crown surface is described as?
wide, shallow “dish-shaped” depression
Lingual Aspect - Permanent Maxillary Central Incisor
The lingual fossa is what shape?
trapezoidal
Lingual Aspect - Permanent Maxillary Central Incisor
Explain the cingulum?
- well developed in the cervical 1/2
- often has two ridge projections that impinge on the lingual fossa in the middle third
- greatest curvature lingually of the cingulum and the crest of the cervical line gingival will be slightly distal to the MD long axis bisector of the crown
Lingual Aspect Negative Anatomy - Permanent Maxillary Lateral Incisor
The lingual fossa is what shape?
Deep, triangular in outline, and also “ cup-shaped”
Lingual Aspect Negative Anatomy - Permanent Maxillary Lateral Incisor
The lingual fossa occupies the?
Incisal 2/3 of the lingual surface of the crown
Lingual Aspect Negative Anatomy - Permanent Maxillary Lateral Incisor
What are the anatomical boundaries for the lingual fossa?
Lingual-incisal ridge
M and D marginal ridges
Cingulum
Lingual Aspect Negative Anatomy - Permanent Maxillary Lateral Incisor
The cingulum is limited to the ____________ 1/3 of the crown and the ________ and _________ marginal ridges form a ________ as they flow into the cingulum
cervical
mesial
distal
“V”
Permanent Maxillary Central and Lateral Incisors
What one is larger?
Central
Permanent Maxillary Central and Lateral Incisors
What one is more angular?
Central
Permanent Maxillary Central and Lateral Incisors
What is the difference in the roots?
Central - straight
lateral - often curved or pointed to the distal
Permanent Maxillary Central and Lateral Incisors
The incisal third of the __________ surface of the central incisor is fairly flat, while the incisal third of the _________ incisor exhibits more convexity
facial
lateral
Permanent Maxillary Central and Lateral Incisors
Which one shows more variation?
The lateral is one of the most variable tooth
The central is fairly uniform
Permanent Maxillary Central and Lateral Incisors
The cingulum on both are offset to which side?
Distal
Permanent Maxillary Central and Lateral Incisors
Shape of the lingual fossa?
Central - trapezoid
Lateral - triangular
Permanent Maxillary Central and Lateral Incisors
From an incisal view, both incisors display contact areas that are centered _________?
FL
Permanent Maxillary Central and Lateral Incisors
From a proximal view, display an incisal edge that is __________ over the fret of the curvature of the CEJ and the main body of their ___________
centered
respective roots
Permanent Maxillary Central and Lateral Incisors
From a lingual view, the __________ incisor frequently displays a fissured or carious “lingual pit”, while the _________ incisor does not
lateral
central
