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Dental Anatomy > 300 Facts > Flashcards

300 Facts Flashcards

1
Q

What teeth have the primary function of biting?

A

Incisors and canines

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2
Q

What are the only anterior teeth that are wider mesio-distally than facial-lingually?

A

Maxillary incisors

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3
Q

What non-molar tooth most frequently has a mesial and distal pulp horn?

A

Max. Central incisor

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4
Q

True or false… the Max. Central incisor has the greatest MD crown dimension of any teeth?

A

False. It has the greatest MD crown dimension of all ANTERIOR teeth

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5
Q

What teeth generally only occlude with one other tooth?

A

Mandibular central incisors and maxillary third molars

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6
Q

What tooth has the smallest crown dimension out of any tooth?

A

Mand. Central incisors

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7
Q

True or false… the Mand. Lateral incisors have the appearance of a twisted crown on root.

A

True

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8
Q

What tooth has the longest root?

A

Max. Canines

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9
Q

What anterior tooth most frequently exhibits a bifurcated root?

A

Mandibular canines

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10
Q

True or false… the MD width of mandibular lateral incisors are narrower than MD width of mandibular central incisors

A

False. They are wider

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11
Q

What maxillary tooth has the smallest MD crown?

A

Maxillary lateral incisor

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12
Q

What tooth has the most crown shape variation?

A

Maxillary lateral incisor

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13
Q

What tooth has the most symmetrical crown?

A

Mandibular central incisor

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14
Q

True or false… mandibular central and lateral incisors do not have concave areas on the M and D surfaces of their roots

A

False, they frequently do have concavities

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15
Q

What is the first succedaneous tooth to erupt?

A

Mandibular central incisor

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16
Q

What is usually the first tooth to erupt?

A

1st molars

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17
Q

True or false.. the lingual cusp of maxillary first premolars are off set to the distal

A

False. They are set to the mesial

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18
Q

True or false… the lingual cusp is off set to the mesial more so on the first maxillary premolar than the second

A

True

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19
Q

What nonmolar tooth most frequently exhibits three roots?

A

Maxillary first premolar

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20
Q

What tooth has the longest crown dimension out of any teeth?

A

Mandibular canine

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21
Q

What tooth of the mandibular teeth has he longest root?

A

Mandibular canine

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22
Q

What is the facial or labial shapes of canines?

A

Pentagonal

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23
Q

What tooth has the sharpest Incisal angles?

A

Mandibular central incisors

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24
Q

Of all the anterior teeth, which has labio lingual width that are closest to their mesial distal width?

A

Maxillary central

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25
Q

Which tooth has measurement that is nearly identical cervico-incisally/occlusally, vs mesiodistally?

A

Max. Central incisor

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26
Q

Developmental anomalies are most often seen in what three teeth/

A

Maxillary laterals, third molars, and mandibular 2nd premolars

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27
Q

Calcification begins in utero __ - __ weeks and by ___-___ weeks, all have begun to calcify

A

13-16

18-20

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28
Q

Is cementum thicker on the permanent or primary teeth?

A

Permanent

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29
Q

True or false… mandibular central incisors have proximal contacts at the same level

A

True

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30
Q

Which, the maxillary or mandibular canine has contact points located more Incisal?

A

Mandibular canine

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31
Q

True or false… maxillary canines are wider mesio-distally than they are facial lingually

A

False

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32
Q

Which tooth has the greatest overall tooth length?

A

Maxillary canine

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33
Q

What is the only tooth that contacts both anterior and posterior teeth?

A

Canines

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34
Q

Out of all the maxillary teeth, which has the most pronounced developmental marginal groove?

A

Maxillary first premolar

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35
Q

What posterior tooth has the greatest cervical-occlusal crown height?

A

Maxillary first premolar

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36
Q

Which, the maxillary first or second premolar, has the most identical cusps?

A

The size and portion of the cusps are more identical for the second maxillary second premolar than the first

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37
Q

True or false… the maxillary second premolar has two cusps that are of equal height

A

True

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38
Q

What is the only premolar with a central fossa?

A

Mandibular second premolar

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39
Q

How many cusps does the Y type mandibular second premolar have?

A

Three. One facial and two lingual

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40
Q

Out of all the anterior teeth, which tooth has the greatest labial-lingual dimension?

A

Maxillary canine

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41
Q

What tooth has the longest root?

A

Maxillary canine

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42
Q

True or false… mandibular incisors frequently have concavities on their mesial and distal root surfaces

A

True

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43
Q

Which is wider mesial-distally… maxillary lateral or maxillary central incisors

A

Maxillary central

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44
Q

Which anterior tooth is most likely to demonstrate a lingual pit cavity?

A

Maxillary lateral incisor

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45
Q

Which incisor has its distal contact most cervically?

A

Maxillary lateral

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46
Q

Which primary tooth has the most distinctly prominent facial cervical ridge?

A

Mandibular first molar

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47
Q

Which is longer in the primary maxillary canine, the mesial or distal cusp slope?

A

Mesial

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48
Q

Which teeth are generally less mineralized, primary or permanent?

A

Primary

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49
Q

Which primary tooth does not resemble any permanent tooth?

A

Primary first mandibular molar

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50
Q

In a primary maxillary first molar, which root is the shortest?

A

Distal root

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51
Q

Which, primary or secondary maxillary first molars have shorter root trunks?

A

Primary maxillary first molars have shorter root trunks (the roots trifurcation close to cervical line)

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52
Q

Which cusp on the primary first maxillary molar is the most prominent?

A

Mesiolingual cusp

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53
Q

You have a handful of primary molars. What is the most obvious indicator to identify the maxillary first molar?

A

Large convexity on buccal at cervical third

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54
Q

What tooth has the greatest cervical curvature (on mesial) of any other tooth?

A

Maxillary central incisor

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55
Q

What non molar tooth is least likely to have a bifurcated root?

A

Maxillary central incisor

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56
Q

Which tooth has a lingual mesial groove?

A

Mandibular first premolar

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57
Q

Which tooth has a lingual groove?

A

Mandibular second premolar

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58
Q

Which tooth has a mesial groove reaching into a mesial groove on the crown?

A

Maxillary first premolar

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59
Q

Which is taller, the buccal cusp of the mandibular first premolar or the buccal cusp of the mandibular second premolar?

A

The first premolar

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60
Q

Which is wider mesiodistal, the mandibular first or second premolar?

A

Mandibular second premolar

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61
Q

On the lingual aspect of the mandibular second premolar, which cusp is most prominent?

A

Mesial-lingual cusp

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62
Q

Of the mandibular premolars, which has a buccal cusp that is more centered over the root?

A

Mandibular first premolar

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63
Q

True or false… there is a mesiolingual developmental groove on mandibular second premolar

A

False

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64
Q

On the mandibular second premolar, can you see more of the occlusal surface from the mesial or distal aspect?

A

Distal aspect

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65
Q

In the mandibular second premolar, is the lingual developmental groove more distal or mesial?

A

Distal

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66
Q

In the mandibular second premolar, which lingual cusp is wider mesiodistally?

A

Mesiodistal lingual cusp

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67
Q

Are contact points more buccal or lingual?

A

Buccal (facial)

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68
Q

In general where are the contact points of anterior teeth?

A

Incisal one thrid

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69
Q

In general, where is the location of the contact points between posterior teeth?

A

Junction of Incisal and middle thirds

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70
Q

In nearly all teeth the (facial/lingual) embrassure is larger than the (facial/lingual) embrassure. What is the exception?

A

In nearly all teeth the lingual embrassure is larger than the facial embrassure.

Except between the maxillary first and second molars

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71
Q

What is an effect of under contouring and over contouring teeth?

A

Under contouring teeth can result in food impaction

Over contouring can result in less gingival stimulation and increased plaque retention

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72
Q

How many roots do most maxillary first premolars have?

A

Two

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73
Q

On the buccal aspect of the maxillary first premolar, which is more concave, the mesial or distal outline?

A

The mesial outline is more concave

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74
Q

True or false… The incisal embrassure between the maxillary central is smaller than the embrassure between the central and lateral.

A

TRUE

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75
Q

Out of all of the anterior teeth, which has the most prominent lingual fossa?

A

Maxillary lateral incisor

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76
Q

What tooth has the greatest facial-lingual inclination?

A

Maxillary lateral incisor

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77
Q

What maxillary anterior tooth has the greatest convexity in its distoincisal angle

A

Maxillary central

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78
Q

Which primary tooth generally exhibits a cusp of carabelli?

A

Primary second molar

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79
Q

Mamelons that remain beyond the age of 10 generally indicate…

A

An open bite (or malocclusion)

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80
Q

Which primary tooth generally has an oblique ridge?

A

Primary maxillary second molar

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81
Q

Which tooth in the primary dentition has more cusps the first or second molar?

A

Primary second molar

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82
Q

The contact between the maxillary central incisor and maxillary lateral incisor makes the lingual embrassure (Larger/smaller) than the facial embrassure?

A

Larger

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83
Q

Which incisal embrasure is larger, the incisal embrasure between the maxillary central incisors or the incisal embrasure between the maxillary central and lateral incisors?

A

Incisal Embrasure between the central and lateral

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84
Q

Describe the distal contact on the maxillary lateral incisor

A

It is centered both inciso-cervically and facial-lingually

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85
Q

Out of all of the anterior teeth, which generally have the most prominent marginal ridges?

A

Maxillary lateral incisors

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86
Q

Except for the third molars, which tooth exhibits the most deviation in crown morphology?

A

Maxillary lateral incisors

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87
Q

Other than the third molars, which tooth is most often congenitally missing?

A

Maxillary lateral incisors

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88
Q

Which canine has a more prominent cingulum?

A

Maxillary canine

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89
Q

The facial cusp of the maxillary first premolar is off set to the distal or mesial?

A

Distal

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90
Q

What posterior tooth is the most symmetrical?

A

Maxillary second premolar

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91
Q

Which premolar has cusp heights that are closest to each other?

A

Maxillary second premolar

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92
Q

On the mandibular first premolar, which marginal ridge (mesial or distal) is located most cervically?

A

Mesial marginal ridge

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93
Q

Which premolar has a uniquely prominent triangular ridge?

A

Mandibular first premolar

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94
Q

Which premolar is the only premolar with a lingual groove?

A

Mandibular second premolar

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95
Q

What portion of an anterior tooth is the first to calcify?

A

Incisal ridge

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96
Q

In the maxillary first molar, what structure forms the distal boundary of the central fossa?

A

Oblique ridge

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97
Q

Which root on the maxillary first molar is the largest?

A

Lingual root

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98
Q

Which root on the maxillary first molar is the smallest?

A

Distofacial root

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99
Q

In comparison to the maxillary first molar, the maxillary second molar has roots that tend to be [more/less] divergent and have [greater/lesser] distal inclinations

A

Less

Greater

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100
Q

How many roots does the mandibular first molar have? How many canals?

A

Two roots with three canals

101
Q

What is the only premolar that may have multiple lingual cusps?

A

Mandibular second premolar

102
Q

What cusp of the maxillary molars occludes in the central fossae of the mandibular molars?

A

Mesiolingual cusp

103
Q

What are the only posterior teeth that are wider mesiodistally than facio-lingually?

A

Mandibular molars

104
Q

Out of all of the mandibular teeth, which teeth are the only ones that are wider mesiodistally than faciolingually?

A

Mandibular molars

105
Q

The occlusal outline of the mandibular first molar takes what shape?

A

Pentagon

106
Q

The occlusal outline (from an occlusal view)of the maxillary first molar takes what shape?

A

Rhomboidal

107
Q

When a fourth pulp canal is present in a maxillary first molar, it is located in the ______ canal

A

Mesio-facial

108
Q

Out of all of the maxillary posterior teeth, which is closest in size faciolingually vs mesiodistally?

A

Maxillary first molar

109
Q

The premolar that most frequently has a single central pit is the ____

A

Mandibular second premolar

110
Q

On the mandibular first molar, the developmental groove between the distobuccal cusp and the distolingual cusp is located ____

A

Distofacially

111
Q

How many buccal cusps does the mandibular first molar have?

A

Three

112
Q

Which molar has the longest root?

A

Mandibular first molar (mesial root)

113
Q

What tooth has the greatest root separation?

A

Mandibular first molar

114
Q

What tooth is the most likely to be forced in the maxillary sinus during an extraction?

A

Maxillary first molar

115
Q

On the maxillary first molar, which cusp is the only one not part of the molar cusp triangle?

A

Distolingual cusp

116
Q

Out of all of the posterior teeth, which has fossa that are closest in size?

A

Maxillary second premolar

117
Q

True or false… the mandibular first premolar frequently has a separate mesial and distal pit

A

True

118
Q

What groove is an identifying characteristic of the mandibular first premolar?

A

Mesiolingual groove

119
Q

The lingual cusp of the mandibular first premolar is approximately ___ the height of the buccal cusp

A

2/3

120
Q

On the maxillary first molar, the oblique ridge connects what two cusps?

A

Mesiolingual and distobuccal

121
Q

The mandibular first molars usually have how many mesial canals?

A

2

122
Q

Which molar has the greatest mesiodistal diameter?

A

Mandibular first molar

123
Q

What tooth has the greatest distal root inclination of any other tooth?

A

Third molars

124
Q

Which molar most frequently has three cusps?

A

Maxillary third molars

125
Q

How many lobes form the anterior teeth?

A

4

126
Q

When viewing anterior teeth from a mesial or distal view, the crown has what geometric form?

A

Triangle

127
Q

What is the smallest cusp of the mandibular first molar?

A

Distal cusp

128
Q

What is the largest cusp of the mandibular first molar?

A

Mesio-facial cusp

129
Q

The mesiofacial and distolingual angles from the occlusal outline tend to be ___ angles

A

Acute

130
Q

Of the 3 furcation of the maxillary first molar, the ____ is the closest to the cervical line

A

Mesial

131
Q

Of the three furcations of the maxillary first molar, the ___ is the furthest from the cervical line

A

Distal

132
Q

The center of the oblique ridge on a maxillary first molar is at the same level with the ____

A

Marginal ridge

133
Q

On the maxillary second molar, the ____ cusp is the only one that is not part of the molar cusp triangle

A

Distolingual

134
Q

The groove pattern for the mandibular first molar is considered a ____ pattern

A

Y (dryopethicus)

135
Q

The shortest interdental papilla is between the _____ and ____ teeth

A

Mandibular second premolar and mandibular first molar

136
Q

The cross sectional outline at the cervical is roughly ____for the permanent maxillary second molar

A

Triangular

137
Q

Viewed from the occlusal, the basic coronal outline of a mandibular second premolar is ____

A

Pentagonal

138
Q

The premolar that is most likely to have a crescent-shaped central developmental groove is the ____

A

Mandibular second premolar

139
Q

The ___ type mandibular second premolar has the same number of occlusal pits as the ______ ____ molar

A

Y

Mandibular first

140
Q

The shortest interdental papilla is between what two teeth?

A

Mandibular second premolar and mandibular first molar

141
Q

On the maxillary first molars, the mesiolingual and distofacial angles from the occlusal outline tend to be ____ angles

A

Obtuse

142
Q

The obtuse angles of the maxillary first molar coincide with the direction of the ____

A

Oblique ridge

143
Q

What tooth has the widest M-D crown dimension of ANY other tooth?

A

Mandibular first molar

144
Q

Out of all of the mandibular teeth, which has the largest FL crown dimension?

A

Mandibular first molar

145
Q

Which tooth has an occlusal groove pattern of a cross (+)?

A

Mandibular second molar

146
Q

The crown of the mandibular second molar inclines to the ___ and ____

A

Mesial and lingual

147
Q

Which tooth has the greatest variation in crown morphology?

A

Third molars

148
Q

Out of all the mandibular teeth, which has the shortest root?

A

Mandibular third molars

149
Q

The distobuccal cusp of the mandibular molars occludes in the ____ of the maxillary molars

A

Central fossa

150
Q

The maxillary first molar has a wider m-d width toward the ___ than the ___

A

Lingual

Buccal

151
Q

Which tooth has the straightest mesial alignment of crown to root?

A

Mandibular canine

152
Q

The maxillary canine has a ___ bulge

A

Distal

153
Q

Which tooth has the longest root out of all the teeth?

A

Maxillary canine

154
Q

The maxillary first molar tends to taper toward the ___ rather than the ____

A

Buccal

Lingual

155
Q

Which cusp of the maxillary first molar is the largest and tallest?

A

Mesiolingual cusp

156
Q

The most prove facial and lingual surfaces of molars are the ____ of maxillary and ____ of mandibular

A

Lingual

Buccal

157
Q

On the mandibular first molar, the ___ root has the greatest buccal-lingual dimension of any other root

A

Mesial

158
Q

A key feature that differentiates the mandibular first and second molar is the number of ___ and number of ____

A

Developmental grooves

And number of cusps

159
Q

On the mandibular first premolar, more of the occlusal surface can be seen from the ____ than the ____

A

Mesial

Distal

160
Q

The lingual cusp of the mandibular first premolar is similar in development to the ____

A

Cingulum of the canine

161
Q

The maxillary first premolar has a ___ ___ that makes it difficult to adapt a matrix band

A

Mesial concavity

162
Q

The premolar that has a longer mesial buccal cusp ridge than a distal buccal cusp ridge is the…

A

Maxillary first premolar

163
Q

Which premolar has the steepest cusp inclines?

A

Maxillary first premolar

164
Q

A common trait of maxillary premolars is that their lingual cusps are off set to the …

A

Mesial

165
Q

The mandibular canine has an incisal edge ____ to long axis

A

Lingual

166
Q

The mandibular canine makes a __ shape from crown tip to root apex

A

C

167
Q

The maxillary canine’s cusp tip is located ____ to the long axis

A

Labial

168
Q

Out of all the anterior teeth, which has the greatest cervical prominence?

A

Maxillary canine

169
Q

Which teeth have proximal contacts at approximately the same levels on mesial and distal?

A

Mandibular central incisors

170
Q

The maxillary lateral incisor’s root is usual equal to or larger than the ___

A

Maxillary central incisor

171
Q

The primary function of the dental pulp is to…

A

Form dentin

172
Q

the last primary teeth to erupt are the….

A

Primary maxillary second molars

173
Q

The maxillary lateral incisor is most often in ____ relation and contact with adjacent teeth

A

Abnormal

174
Q

The ____ groove of the maxillary lateral incisor is an anatomical feature that complicates root planning

A

Distolingual

175
Q

Mandibular central incisor are distinguished by the cervical curvature, which is greater on the ____ than the ____

A

Mesial

Distal

176
Q

The _____ have contact points at the same incisocervical level

A

Mandibular central incisors

177
Q

The maxillary canine ___ contact is centered

A

Distal

178
Q

The crown form of canines from a facial view is….

A

Pentagonal

179
Q

Which tooth, when viewed from the proximal view tends to be positioned with the most vertical axis?

A

Maxillary canine

180
Q

True or false…

The middle facial lobe of the maxillary canine includes the cusp tip

A

True

181
Q

When present, the bifurcation of the mandibular canine roots create a ____ and ____ root

A

Lingual and labial

182
Q

Which premolar most frequently is seen with only one pulp horn?

A

Mandibular first premolar

183
Q

The facial attached gingiva is narrowest for which tooth?

A

Mandibular first premolar

184
Q

Out of all the teeth, which has the greatest faciolingual diameter?

A

Maxillary first molar

185
Q

Out of the mandibular molars, which has the largest occlusal-cervical crown dimension?

A

Mandibular first molar

186
Q

Which are the only posterior teeth that are wider mesiodistally than buccal-lingually?

A

Mandibular molars

187
Q

What are the only posterior teeth that are wider mesiodistally than facial lingually?

A

Mandibular molars

188
Q

The cross section of the mandibular canine at the CEJ is ____ wider mesiodistally at the ___

A

Ovoid

Labial

189
Q

Which is narrower mesiodistally, the mandibular canine or the maxillary canine?

A

Mandibular canine

190
Q

The cervical cross section of a maxillary first premolar exhibits a ____ shaped root outline and pulp chamber

A

Kidney

191
Q

The occlusal outline for the mandibular first premolar occlusal view is ____ shaped

A

Diamond

192
Q

The mandibular first premolar has its mesial marginal ridge more ___ than the distal ridge

A

Cervical

193
Q

The ___ cusp of the mandibular first premolar in normal occlusion does not occlude

A

Lingual

194
Q

What is the only tooth with a mesio-lingual groove?

A

Mandibular first premolar

195
Q

The maxillary first molar has a ____ concavity that can pose special problems in matrix band placement

A

Distal

196
Q

On the maxillary first molar, In the facial view, the apex of the lingual root is in line with the ____ of the tooth

A

Facial groove

197
Q

The mandibular canine has a continuous convex facial surface from ____ to ____ end

A

Incisal to apical

198
Q

In cross section, the root of the mandibular canine is _____ shape

A

Irregular oval

199
Q

The ____ surface of the crown of the mandibular canine is almost parallel to the long axis

A

Mesial

200
Q

Which molar has the most distinct transverse ridge separating the mesial fossa?

A

Mandibular first molar

201
Q

The facial surfaces of mandibular molars are located medial to the ….

A

Border of the ascending ramus

202
Q

At mid root cross section of first molars, the largest is which root?

A

Mesial (from mandibular first)

203
Q

Which is the only premolar with a longer mesial cusp ridge?

A

Maxillary first premolar

204
Q

Which is the only tooth with mesial marginal ridge groove and mesial crown concavity and mesial root depression?

A

Maxillary first premolar

205
Q

Which non molar tooth has the sharpest demarcation between pulp chamber and pulp canal?

A

Maxillary first premolar

206
Q

The primary spacing for the anterior teeth is most frequently caused by …

A

The growth of the dental arches

207
Q

Which primary tooth is the only primary posterior tooth to have oblique and transverse ridges and DL groove?

A

Primary second molar

208
Q

The mandibular primary primate space is located between…

A

The mandibular canine and mandibular first molar

209
Q

Which posterior tooth has the smallest buccal lingual dimension?

A

Mandibular first premolar

210
Q

Out of all the mandibular teeth, which tooth has the closest similarity between MD and FL dimensions?

A

Mandibular first premolar

211
Q

Which tooth’s occlusal surface forms a cross (crucifix form)?

A

Mandibular second molar

212
Q

When in an occlusal view of the mandibular second molar, the greatest faciolingual diameter is located in what third?

A

Mesial 1/3rd

213
Q

True or false… mandibular molars have long axis of their root spices facial and their crowns lingual

A

True

214
Q

The mandibular first premolar has its mesial marginal ridge more ____ than the distal marginal ridge

A

Cervical

215
Q

The mesiolingual developmental groove of a mandibular first premolar originates where? Where does it extend to?

A

Occlusal pit

Proximal surface

216
Q

Maxillary third molars often form a heart shaped (in an occlusal view), why?

A

They are missing the distolingual cusp

217
Q

Usually, when viewing a third molar from an occlusal view, it has a ___ shape

A

Rhomboid

218
Q

When the mandible moves from CO to edge to edge, the condyles move…

A

Forward and downward

219
Q

For multirooted teeth, dentin continues to form most rapidly at the …

A

Floor of the roof of the pulp chamber

220
Q

The side shift of the mandible is also known as a ____ shift

A

Bennett

221
Q

During a bennett shift, the non-working condyle moves….

A

Downward, forward, and medial

222
Q

The dentin that is most highly mineralized is the ___ dentin

A

Peritubular

223
Q

The softest dental hard tissue is

A

Cementum

224
Q

The hardest dental tissue is…

A

Enamel

225
Q

A transfer ridge results from the union of the ___ and ___, ____ ridges

A

Facial and lingual triangular

226
Q

How many teeth in the permanent dentition have cingulums?

A

12 (all anterior teeth)

227
Q

The thickest section of the articular disc when seen in a sagiittal plane is the ___

A

Posterior border

228
Q

Which fibers of the PDL provide the major support for a tooth during function?

A

Oblique

229
Q

The pulp chamber of a mature tooth contains…

A

Blood vessels and nerves

230
Q

_____ plays the greates role in discluding the posterior teeth in a lateral-potrusive movement

A

Anterior guidance

231
Q

For molar teeth, the root canals join the pulp chamber ___ to the CEJ

A

Apical

232
Q

The ____ periodontal fibers travel from one root to an adjacent root surface

A

Transseptal

233
Q

True or false… caries stimulates the production of tertiary dentin

A

True

234
Q

Describe the curve of spee

A

The anterior-posterior curve

235
Q

The height of contour is in the ____ third for the facial surfaces of all teeth

A

Gingival 1/3rd

236
Q

The apex of a tooth is fully formed ___ years after it erupts in the mouth

A

2-3

237
Q

Accessory pulp canals may be found in the ___ third of the root

A

Cervical

238
Q

True or false… accessory pulp canals may contain nervous and vascular tissue

A

True

239
Q

True or false, accessory pulp canals may be found in furcation areas of molars

A

True

240
Q

True or false… maintenance of the epithelial attachment is a function of the PDL

A

False

241
Q

Marginal ridge heights for posterior teeth are generally more occlusal on the ___ ridges than the ___ ridges

A

Mesial

Distal

242
Q

True or false… all teeth have distal and mesial marginal ridges

A

True

243
Q

Approximately __% of permanent root formation is completed at the time the tooth erupts

A

50

244
Q

True or false… centric relation is a tooth guided position

A

False.. it is a ligament guided position

245
Q

What is a function of accessory pulp canals

A

Allow the pulp tissue to communicate with the PDL space

246
Q

What is the function of pulp?

A

Form and supply nutrients to dentin as well as transmit sensory info

247
Q

True or false… the number of lobes that form the posterior teeth coincides with the number of cusps

A

True

248
Q

True or false.. all premolars are wider mesiodistally than faciolingually

A

False, it is the opposite

Dental Anatomy (5 decks)

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