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DENTAL ANATOMY YEAH YEAH > Examen I > Flashcards

Examen I Flashcards

1
Q

Which two surfaces of a tooth CANNOT be “proximal”? What are the axial surfaces?

A

Facial & Lingual..Axial Surfaces=F,L,M,D

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2
Q

What is the oblique ridge ALSO referred to? What two cusps are making this guy?

A

A “special kind” of Transverse ridge. ML cusp—>DF cusp

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3
Q

What is a depression/valley/space on the surface of a tooth between two ridges? What is at the bottom of this space?

A

A SULCUS…..A GROOVE

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4
Q

What is the LAST PRIMARY tooth to calcify? What WEEK in utero does the late guy calcify?

A

Maxillary 2nd molars…19 weeks

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5
Q

What are the FIRST primary teeth to exfoliate? WHEN?

A

BOTH mandibular and maxillary Central Incisors…6.5 Years (SO just as the first permanent teeth are coming in!)

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6
Q

What is the LAST primary tooth to peace out? WHEN? WHAT is it REPLACED by?

A

Maxillary Second Molars….11 yrs…Replaced by Perm Max 2nd PreMolar

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7
Q

What are the first permanent teeth to erupt? WHEN?

A

The Max AND Man 1st molars..6yrs

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8
Q

What ARE the permanent TEETH to complete their root formation FIRST? WHEN?

A

The Max AND Man 1st molars & MAN central incisors…9 years of age…makes sense, they are all the first teeth in..

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9
Q

By what age have all permanent INCISOR tooth roots formed?

A

11 yrs

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10
Q

What is the OVERDEVELOPMENT of either the distal cusp ridge of the ML cusp or the mesial cusp ridge of the DL cusp on a permanent mandibular molar?

A

Tuberculum Intermedium (Tuber=swelling, Tuberculum= small swelling)

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11
Q

Plane of Occlusion: The IDEAL plane is NOT _____.

A

FLAT

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12
Q

Plane of Occlusion: A flat plane allows for too many ______ on posterior teeth on both sides of the mouth.

A

Contacts

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13
Q

Plane of Occlusion: The proper plane of occlusion will permit ________ functional contacts to occur in ________ areas of the dental arch.

A

simultaneous….controlled

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14
Q

Plane of Occlusion: A ______ plane permits maximum use of tooth contacts during function.

A

Curved

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15
Q

Plane of Occlusion: The teeth are strategically positioned in the arches at varied and coordinated degrees of ________.

A

inclination

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16
Q

WHERE are the contacts for each mandibular anterior? M of Central:____ D of Central:_____ M of Lateral:_____ D of Lateral:____ M of Canine:_____ D of Canine:_____

A

M of Central:_Incisal___ D of Central:__Incisal___ M of Lateral:__Incisal ___ D of Lateral:__Incisal__ M of Canine:___Incisal__ D of Canine:__Middle___

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17
Q

Height of Contour-Mandibular arch: All facial surfaces (in mm and 1/3)

A

0.5mm…cervical 1/3

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18
Q

Height of Contour-Mandibular arch: Anterior teeth Lingual surface (mm and 1/3)

A

0.5mm…cervical 1/3

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19
Q

Height of Contour-Mandibular arch: first premolar lingual surface (mm and 1/3)

A

0.5mm…middle 1/3

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20
Q

Height of Contour-Mandibular arch: second premolar lingual surface (mm and 1/3)

A

0.75mm….middle 1/3

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21
Q

Height of Contour-Mandibular arch: molar lingual surface (mm and 1/3)

A

1.0mm…..middle 1/3

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22
Q

Oblique PDL fibers are known to resist _______ ________ of a tooth into the alveolus, consistent with many types of ______.

A

Forceful Impaction….Trauma

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23
Q

________ fibers help maintain contiguous proximal contact.

A

Transseptal

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24
Q

An EMBRASURE can exist, even in situations when there is a ________ between the proximal contact!

A

Diastema (its not necessary for the adjoining teeth to physically touch in order for embrasures to be exhibited)

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25
Q

In an ideal embrasure construct, every contact area produces how many embrasures?

A

4

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26
Q

Which tooth is the ONLY one with SMALLER LINGUAL embrasures then facial embrasures?

A

MAXILLARY first molar (crown tapers to the facial)

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27
Q

In the maxillary arch, the Facial embrasures are ______ then the Lingual Embrasures EXCEPT surrounding the ______ _______ _______!!!

A

F SMALLER then L…EXCEPT surrounding the MAXILLARY FIRST MOLAR (think TAPER…lingual is larger then facial so less lingual embrasure)

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28
Q

Concerning Primary VS Permanent Crowns: The enamel is relatively _____ & has consistent _______.

A

Thin…..depth

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29
Q

Concerning Primary VS Permanent Crowns: The _____ thickness between the pulp chambers & the enamel is LIMITED.

A

Dentin

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30
Q

Concerning Primary VS Permanent Crowns: The pulp horns are _____ and the pulp chambers are proportionally _____.

A

HIGH….Large

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31
Q

Concerning Primary VS Permanent Crowns: Primary pulp horns protrude higher underneath crown heights because their ______ thickness is minimal, compared to permanent teeth.

A

Dentin

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32
Q

Incisal View-PRIMARY Max Lat Incisor: the Incisal Ridge is CURVED toward the ______ surface.

A

DISTAL

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33
Q

Lingual View-Primary Max First Molar: The ___ cusp IF VISIBLE is small.

A

DL

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34
Q

Facial View–Primary Mandibular First Molar: The ___ cusp is LARGER and Taller then the ___ cusp.

A

MF cusp is larger and taller then DF cusp (normal)

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35
Q

Facial View–Primary Mandibular First Molar: There is a short or indistinct facial ______ that looks more like a depression.

A

Groove

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36
Q

Facial View–Primary Mandibular First Molar: The _____ _____ significantly points or dips apically onto the mesial root surface on the ______ half of the tooth.

A

cervical line…..mesial

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37
Q

Facial View–Primary Mandibular First Molar: The cervical _____ is quite convex in the ______ half and FADES OUT onto the ___ Cervical Third.

A

Ridge….Mesial….DF

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38
Q

Facial View–Primary Mandibular First Molar: The mesial root is much _____ and more ______ then the distal root.

A

LONGER….straight

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39
Q

Occlusal View-Primary Mandibular Second Molar: The tooth possesses a long and winding ____ _____.

A

Central Groove

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40
Q

Occlusal View-Primary Mandibular Second Molar: There is a distinct mesial marginal ____ ____. Haha funny name

A

mesial marginal ridge groove

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41
Q

Occlusal View-Primary Mandibular Second Molar: The distal marginal ridge has a “_____” instead of a groove that splits into two segments.

A

“notch”

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42
Q

Occlusal View-Primary Mandibular Second Molar: ___ and ___ developmental grooves separate the 3 cusps.

A

MF and DF

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43
Q

Occlusal View-Primary Mandibular Second Molar: A single _____ _____ separates the ML and DL cusps.

A

lingual groove

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44
Q

Occlusal View-Primary Mandibular Second Molar: Major fossae include the _____ fossa, _____ triangular fossa, & ____ triangular fossa.

A

central, mesial, & distal

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45
Q

Occlusal View-Primary Mandibular Second Molar: There are SIGNIFICANT triangular ridges located on each cusp but none of them meet to form a ________ _____.

A

transverse ridge (none of them line up!!)

46
Q

Where is the most common location in the mandible for a supernumerary tooth to exist?

A

Mandibular Second PreMolar

47
Q

What arises through the UNION of two normally separated tooth germs and may be complete or incomplete?

A

Tooth Fusion (I WONDER HOW THIS RELATES to dental stem cells??)

48
Q

In tooth fusion: Two independent pulp ______ and root _____ can be seen.

A

chambers…canals

49
Q

In tooth fusion: Fusion can also be the union of a normal tooth ______ & a _________ tooth germ!

A

bud & a supernumerary tooth germ!

50
Q

In tooth fusion: Which sets of teeth are most commonly seen with this anomaly??

A

MAXillary 2nd and 3rd molars

51
Q

In tooth fusion: it ALWAYS involves the what layer of the tooth??

A

DENTIN

52
Q

Facial Aspect Root Structure-Perm Max Cent Incisor: Outine of the root is _____ shaped and a _____ apex usually located slightly _____ to the center line of the tooth.

A

CONE….BLUNT….DISTAL

53
Q

Facial Aspect Root Structure-Perm Max Cent Incisor: Are there root surface developmental depressions?? Is this easy or difficult to extract?

A

NO evidence of them….EASY to extract

54
Q

Facial Aspect: Perm Max Lat Incisor: The crown length is ____mm shorter then the central.

A

1.0-1.5mm

55
Q

Facial Aspect: Perm Max Lat Incisor: The crown width is ___mm less then the central giving the impression that the maxillary lat incisor is relatively ____ & ______.

A

2.0mm…long & narrow

56
Q

Facial Aspect: Perm Max Lat Incisor: The root apex has a _____ curvature.

A

DISTAL…DUH!!!

57
Q

Distal Aspect-Perm Max Lat Incisor: The incisal _____ and ____ _____ will NOT be in line with each other.

A

ridge…root apex

58
Q

Distal Aspect-Perm Max Lat Incisor: The incisal ridge is ______ FacioLingually over the crown and main body of the root.

A

CENTERED

59
Q

Mesial View-Perm Man Cent Incisor: The incisal edge will be ______ to the FL long axis bisector.

A

Lingual

60
Q

Mesial View-Perm Man Cent Incisor: The enamel on the facial surface will extend apically about ____mm more than it does on the lingual.

A

0.5mm

61
Q

Facial View-Permanent Mandibular Lateral Incisor: The incisal edge is ______ but it may appear slanted toward the _____.

A

Straight…Distal

62
Q

Facial View-Permanent Mandibular Lateral Incisor: The mesial incisal line angle is said to be a _____ ____ degree angle; the Distal incisal angel is usually more ______.

A

mesial: Sharp 90 degree….. distal: rounded

63
Q

Facial View-Permanent Mandibular Lateral Incisor: Proximal contacts are both within the incisal ___ of the crown and are CONSIDERED to be at essentially (NOT EXACTLY) the _____ _____.

A

incisal 1/3…same level….ACUTALLY distal is more Cervial WTF

64
Q

Facial View-Permanent Mandibular Lateral Incisor: The distal contact is always considered to be slightly ______ then the mesial contact area.

A

Cervical

65
Q

Facial View-Permanent Mandibular Lateral Incisor: There is often more curvature in the _____ crown outline; therefore the crown is NOT considered _______ from the facial view.

A

distal….not considered symmetrical

66
Q

Distal View-perm man lat incisor: The incisal ridge is slighly toward the _____ surface when compared to the FL long axis bisector that travels through the root apex.

A

Lingual

67
Q

Facial View-Perm Max Canine: The cusp tip is either in line or slightly _____ to the vertical center of the tooth.

A

mesial

68
Q

Facial View-Perm Max Canine: The mesial cuspal ridge is ______ then the distal cuspal ridge.

A

Shorter (HENCE why the cusp tip is mesial)

69
Q

Facial View-Perm Max Canine: The apical 1/3 of the root has a ______ curvature. But what else COULD it be?

A

Distal…DUH! But it COULD me mesial or straight. hahahaha so everything!

70
Q

Facial View-Perm Max Canine: Where is the cusp tip NEVER located?

A

Distal

71
Q

Distal View- Perm Max Canine: The cusp tip is aligned with the ____ ____, and the _____ __ ______ on the cervical line.

A

root tip…..height of curvature

72
Q

Distal View- Perm Max Canine: There is a PRONOUNCED _______, which is cervical to the distal contact area (this is minimally present on the ______ root surface)

A

CONCAVITY…mesial

73
Q

Mesial View-Perm Man Canine: The cusp tip is _______ to the FL bisector.

A

Lingual (the max teeth need to fit over it!)

74
Q

Mesial View-Perm Man Canine: There is a significant incisal curvature of the _____ _____ (more so than on the max canine).

A

Cervical Line

75
Q

Mesial View-Perm Man Canine: The ________ is not pronounced.

A

cingulum

76
Q

Mesial View-Perm Man Canine: A root surface developmental depression is ________ & _____ on the root (THIS increases the possibility of what???)

A

Pronounced & Deep…… (Two Roots or Two canals!)

77
Q

Perm Max First Premolar-Lingual: The lingual cusp is _____ pointed and about __mm shorter then the facial cusp.

A

less…..1.0mm

78
Q

Perm Max First Premolar-Lingual: The lingual cusp is slightly _______ to the MD long axis bisector; therefore the mesial cuspal ridge will be ______ than the distal cuspal ridge.

A

mesial….shorter

79
Q

Perm Max First Premolar-Lingual: It is characteristic of the lingual cusps of both max premolars to “_____” or “point” to the _____.

A

Swing….mesial

80
Q

Perm Max First Premolar-Lingual: The mesial and distal outlines of the lingual cusp will both be slightly ______.

A

Convex

81
Q

Perm Max First Premolar-Lingual: A small amount of both the mesial and distal surfaces of the crown will be ______.

A

VISIBLE!!

82
Q

Perm Max First PreMolar-Mesial: The mesial cuspal ridges of the facial and lingual cusps converge to meet the mesial _______ ______. The crest of this structure is almost _______ to the FL long axis bisector.

A

mesial marginal ridge….perpendicular

83
Q

Perm Max First PreMolar-Mesial: The mesial marginal ridge is divided into F and L segments by the _____ ______ DEVELOPMENTAL GROOVE.

A

MESIAL MARGINAL DEVELOPMENTAL GROOVE

84
Q

Perm Max First PreMolar-Mesial: The MESIAL MARGINAL DEVELOPMENTAL GROOVE crosses the ridge from the _______ surface and extends onto the ______ surface.

A

Occlusial…mesial

85
Q

Perm Max First PreMolar-Mesial: The ______ _______ ________ must ALWAYS be of concern to the dentist during restorative and periodontal Tx.

A

MESIAL DEVELOPMENTAL DEPRESSION

86
Q

Perm Max First PreMolar- Occlusial: The Crest of the lingual segmment lingually is distinctly ______ to the MD bisector of the crown.

A

mesial (pinched look)

87
Q

Perm Max First PreMolar- Occlusial: The mesial and distal cuspal ridges of the _____ cusp are in line with each other but angle slightly across the surface. The mesial end of the connected cuspal ridge line is more _____ than the distal end.

A

facial…..lingual (that PINCHED look!)

88
Q

Perm Max First PreMolar- Occlusial: The facial cusp tip is _____ to the MD bisector and ___ the distance from the facial outline of the FL bisector.

A

distal (“twisted” look)…1/3 the distance

89
Q

Perm Max Second PreMolar-Lingual: Occlusially the outline of both cusps is ______. The tip of the lingual cusp is __ ____ with the tip of the facial cusp.

A

visible…..in line

90
Q

Perm Max Second PreMolar-Lingual: The lingual cusp is nearly _____ in height and a little more ______ ( less ______) than the facial cusp.

A

Equal….rounded (less pointed)

91
Q

Perm Max Second PreMolar-Lingual: The cuspal ridges of the lingual cusp will not be as ______ occlusially as those of the facial cusp and will present the same _____ of slant from the tip of the cusp.

A

high….angle

92
Q

Perm Max Second PreMolar-Occlusial: The tooth has mesial and distal ______ ______ that are IRREGULARLY shaped.

A

Triangular Fossae

93
Q

Perm Max Second PreMolar-Occlusial: The odd triangular fossae are nearer the ______ of the tooth when compared to the triangular fossae on the ______ ______ _____.

A

Center….Max First PreMolar

94
Q

Perm Max Second PreMolar-Occlusial: Has a relatively ______ central groove and relatively _____ marginal ridges.

A

short….wide

95
Q

Perm Man First PreMolar-Lingual: The lingual cusp has consistent _______ qualities to the anatomy.

A

Cingulum!

96
Q

Perm Man First PreMolar-Lingual: The lingual cusp tip is approx ___ the height of the facial cusp tip.

A

2/3’s the height

97
Q

Perm Man First PreMolar-Lingual: A ______ & ______ lingual cusp tip is evident.

A

Pointed & centered

98
Q

Perm Man First PreMolar-Mesial: A very short and somewhat horizontally positioned lingual cusp _______ _____ is seen.

A

triangular ridge

99
Q

Perm Man First PreMolar-Mesial: The central groove is positioned on the ______ portion of the crown.

A

lingual

100
Q

Perm Man First PreMolar-Mesial: There is a ___ degree angle to the crest of the mesial marginal ridge.

A

45 degree

101
Q

Perm Man First PreMolar-Mesial: A distinct ___ ______ is present that is located at the ML line angle, but is not continuous with the ML coronal _________.

A

ML groove…..depression

102
Q

Perm Man First PreMolar-Occlusial: The mesial triangular fossa has a mesial groove at the bottom of it that is ______ in shape and is continuous with the ML groove.

A

linear

103
Q

Perm Man First PreMolar-Occlusial: At the bottom of the distal triangular fossa is a “______” shaped distal groove.

A

“comma”

104
Q

Perm Man First PreMolar-Occlusial: The central groove is located on the _______ side of the tooth and will “_____” or be oriented toward the lingual surface.

A

lingual…“bend”

105
Q

Perm Man Second Premolar-Lingual: The 3 cusp variety has 2 ______ cusps with a ______ groove between both.

A

lingual….lingual

106
Q

Perm Man Second Premolar-Lingual: The lingual groove is _______ positioned.

A

distally

107
Q

Perm Man Second Premolar-Lingual: The ML cusp tip is approx ____mm shorter then the facial cusp tip.

A

1.5mm

108
Q

Perm Man Second Premolar-Lingual: The DL cusp tip is about ___mm shorter then the facial cusp tip.

A

2.0mm

109
Q

Perm Man Sec PreMolar-Occlusial: There are _____ _____ connections that are evident between the cuspal ridges and adjacent marginal ridges.

A

right angle

110
Q

Perm Man Sec PreMolar-Occlusial: The 3 cusp variety does not have a _______ _______.

A

transverse ridge

111
Q

Perm Man Sec PreMolar-Occlusial: The central groove has a mesial and distal component to it and is ______ positioned.

A

lingually

112
Q

Perm Man Sec PreMolar-Occlusial: On the 3 cusp variety, the outline of the developmental groove is a “__” shaped pattern.

A

“Y”

DENTAL ANATOMY YEAH YEAH (9 decks)

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