Dentitions, Incisors, Premolars, and Maxillary Molars Flashcards
Which of the following has the WIDEST crown in the mesio-distal dimension? A) mandibular central incisor B) mandibular lateral incisor C) maxillary central incisor D) maxillary lateral incisor E) all of the above
C) maxillary central incisor
Which of the following has the NARROWEST crown in the mesio-distal dimension? A) mandibular central incisor B) mandibular lateral incisor C) maxillary central incisor D) maxillary lateral incisor E) all of the above
(Not c)
Which of the following has a larger CEJ curvature on its mesial root compared to the CEJ curvature on its distal root A) mandibular central incisor B) mandibular lateral incisor C) maxillary central incisor D) maxillary lateral incisor E) all of the above
(Not d)
\_\_\_ have marginal ridges that are near parallel to the long axis of the tooth; \_\_\_ in GENERAL, have marginal ridges that are near 45 degrees to the long axis of the tooth; and \_\_\_ have marginal ridges that are near perpendicular to the long axis of the tooth. A) centrals, laterals, and canines B) incisors, premolars, and molars C) incisors, canines, and molars D) canines, premolars, and molars
C) incisors, canines, and molars
Maxillary central incisors are wider mesio-distally than maxillary lateral incisors. T/F?
True
Mandibular central incisors are wider mesio-distally than mandibular lateral incisors. T/F?
False
Maxillary first premolars have larger crowns than maxillary second premolars. T/F?
True
Mandibular first premolars have larger crowns than mandibular second premolars. T/F?
False
Which of the following has a non-functional lingual cusp? A) mandibular first premolar B) mandibular second premolar C) maxillary first premolar D) maxillary second premolar
(Not c)
Which of the following has a mesial depression in the cervical 1/3 of its crown? A) mandibular first premolar B) mandibular second premolar C) maxillary first premolar D) maxillary second premolar
B) mandibular second premolar
Which of the following shapes relate the maxillary molars? A) rhomboid B) oval C) square D) trapezoid
A) rhomboid
What is the biggest, strongest tooth in the maxillary arch? A) maxillary canine B) maxillary central C) maxillary 2nd molar D) maxillary 1st molar
A) maxillary canine
Maxillary first molars are usually ___ where as maxillary second molars can be ___ or ___.
Not C
Oblique ridges are found both on maxillary first and maxillary second molars. T/F?
Not b
Oblique ridges run from the \_\_\_ cusp to the \_\_\_ cusp, A) mesio-buccal, disto-lingual B) mesio-lingual, disto-buccal C) mesio-buccal, cusp of carabelli D) mesio-buccal, distal
Not D
Teeth that are normally bifurcated in the maxillary arch are:
A) canines, 1st premolars, 2nd premolars
B) 1st premolars, 1st maxillary molars, 2nd maxillary molars
C) centrals, laterals, and canines
D) 1st maxillary premolar only
D) 1st maxillary premolar only
Marginal grooves, or spillways, are normally located to the \_\_\_ side of the marginal ridge; and the embrasures are larger on the \_\_\_ side of the contract. A) buccal; buccal B) lingual; lingual C) buccal; lingual D) lingual; buccal
B) lingual;lingual
A secondary groove on the occlusal table of the posteriors is called a: A) primary groove B) tertiary groove C) bifurcated groove D) supplemental groove
D) supplemental groove
Cusp ridges that extend from the cusp tip down to the central groove on the occlusal table are known as: A)triangular ridges B) marginal ridges C) transverse ridges D) oblique ridges
A) triangular ridges
List the five cusps present in a maxillary first molar
Mesiobuccal Distobuccal Mesiolingual Distolingual Cusp of carabelli
Explain the function and location of spillways
Spillways are where the central grooves runs over the marginal ridge and “spills out”
Explain the term succedaneous. Which permanent teeth are succedaneous and which are not?
Succedaneous refers to all permanent teeth that replace their primary teeth. (All teeth except the molars)
Function and anatomical characteristic that relates to their function: incisors
Function: bite into, cut
Anatomy: linguo-Incisal edge
Function and anatomical characteristic that relates to their function: Canines
Function: pierce
Anatomy: sharp cusp tip
