300+ REAL TIME Permanent Dentition Objective Questions & Answers 2023

Permanent Dentition Multiple Choice Questions : Oral Anatomy Quiz

In maxillary 1st permanent molar, the 2 obtuse angles are:
A. Mesiolingual and mesiofacial
B. Mesiofacial and distolingual
C. Distofacial and mesiolingual
D. Distofacial and mesiofacial
In the mandibular arch, in which tooth maximum lingual inclination is present:
A. 1st premolar
B. 3rd molar
C. Lateral incisors
D. Canine
Following eruption , the root of the maxillary central incisor completes development at what approximate age:
A. 7 years
B. 8 years
C. 9 years
D. 10 years
The maxillary lateral incisor is smaller than the maxillary central incisor on all aspects EXCEPT which one of the following:
A. Crown length
B. Mesiodistal crown width
C. Faciolingual crown width
D. Root length
Which teeth the proximal aspect shows rhomboidal appearance:
A. Maxillary posteriors
B. Mandibular posteriors
C. Maxillary anteriors
D. Mandibular anteriors
Steepest cusp is seen in:
A. Maxillary 1st premolar
B. Maxillary 1st molar
C. Mandibular 2nd molar
D. Mandibular 1st molar
The eruption age of maxillary permanent lateral incisor is:
A. 8-9 years
B. 6-7 years
C. 10-11 years
D. 8-9 months
Maxillary first molar has how many roots:
A. 1 facial and 2 lingual
B. 1 lingual and 2 facial
C. 1 mesial and 2 buccal
D. 1 mesial and 1 distal
Average of length of maxillary cuspid is:
A. 26 mm
B. 33 mm
C. 21 mm
D. 18 mm
Which of the following permanent teeth is usually bilaterally symmetric when viewed labially and incisaly:
A. Mandibular lateral incisor
B. Mandibular canine
C. Mandibular central incisor
D. Maxillary central incisor
The root trunk of permanent mandibular first molar buccally is:
A. Equal is length to the mesial bifurcation of the maxillary first molar
B. Equal is length to the buccal bifurcation of the maxillary first molar
C. equal in length to the crown
D. None of the above
The maxillary tooth exhibiting the greatest variation in root alignment is:
A. Central incisor
B. First premolar
C. Third molar
D. Second molar
Which of the following is true of permanent first molar’s occlusal surface:
A. Maxillary molar has 2 major fossa, 2 minor fossa, 4 triangular ridges,1 oblique ridge and 5 grooves
B. Mandibular molar has 1 major fossa, 2 minor fossa, 5 triangular ridges and 4 grooves
C. Rhomboidal shape in maxillary molars and hexagonal shape in Mandibular molars
D. All of the above
Which of the following is true for permanent teeth:
A. Maxillary roots are inclined distally where as Mandibular roots are inclined mesially
B. Maxillary molars are buccally inclined and Mandibular molars are inclined lingually
C. Buccal cusps of lower and lingual cusps of upper are the functional cusp
D. All of the above
Permanent mandibular first molar is developed from ______ lobes?
A. 3
B. 4
C. 5
D. 6
The two major fossa of permanent maxillary first molar:
A. Central fossa and mesial fossa
B. Central and distal fossa
C. Mesial and distal tringular fossa
D. Distal fossa and distal tringaular fossa
In which of the following a nonfunctional cusp is present:
A. Maxillary 1st molar
B. Maxillary 2ndmolar
C. Mandibular 1st molar
D. Mandibular 2nd molar
The premolar with the occlusal groove pattern that may simulate the letter “Y” is:
A. Maxillary first
B. Maxillary second
C. Mandibular second
D. Mandibular first
In the triangle formed by the projection of the orifices of the canals of a maxillary molar, the:
A. Line connecting mesial with distal is longest
B. Line connecting mesial with lingual is longest
C. Line connecting distal with lingual is longest
D. Angle at the mesio facial canal is obtuse
Which bifurcation is closet to the cervical line (or) which surface has short root trunk length in a maxillary permanent first molar?
A. Buccal
B. Mesial
C. Distal
D. None of the above
Which cusp is poorly developed in a permanent maxillary second molar:
A. DB
B. DL
C. MB
D. ML
Tritubercular cusps are:
A. ML
B. MB
C. DB
D. All of the above
The occlusal surface shape of a 3 cusped mandibular second premolar:
A. Oval
B. Elliptical
C. Square
D. Tetrahedral
Mesial slope of buccal cusp is longer than distal slope in:
A. Maxillary 2nd premolar
B. Maxillary 1st premolar
C. Mandibular canine
D. Maxillary canine
Mandibular second premolar 3- cusp type id developed from:
A. 3
B. 4
C. 5
D. 6
Rounded protuberances on the incisal edges of newly erupted permanent incisors are:
A. Mamelons
B. Tubercles
C. Enamel pits
D. Cingulum
No. of cusps in mandibular 1st molar:
A. 4
B. 3
C. 5
D. 6
Longest tooth of the maxillary arch is:
A. Permanent incisor
B. First premolar
C. Permanent canine
D. Decidous incisor
The largest permanent tooth in the mouth usually is:
A. Maxillary canine
B. Mandibular canine
C. Mandibular first molar
D. Maxillary first molar
Difference between mandibular and maxillary premolars is that in the mandibular premolars?
A. The buccal and lingual cusps are more prominent
B. The lingual cusp is sharper and longer
C. The lingual surface rounded and less developed
D. The buccal surface is rounded and less developed
Mesiolingual grooves may be found on which of the following permanent teeth:
A. Mandibular second molars
B. Mandibular first premolars
C. Maxillary first molars
D. Maxillary canines
Which of the following features of a permanent maxillary lateral incisor aids in distinguishing it from a mandibular lateral incisor?
A. Flattened root
B. More pronounced lingual fossa
C. Thinner incisal ridge
D. Sharper proximal incisal angles
The total number of cingula in each dentition is:
A. 6
B. 12
C. 24
D. 32
A maxillary right canine may be distinguished from a maxillary left canine because:
A. The root curves to mesial in the apical 1/3rd
B. The distal half of canine shows more convexity than the mesical half
C. Facially the cusp tip is placed distal to Bisecting line
D. Lingually the cervical line slopes mesially
Number of roots in maxillary 2nd molar is:
A. 2
B. 3
C. 4
D. 5
The permanent anterior tooth, which is most 20. Commonly atypical , is:
A. Maxillary central incisor
B. Maxillary lateral incisor
C. Mandibular central incisor
D. Mandibular 1st premolar
The root of maxillary lateral incisors if curved is usually in which direction?
A. Distal
B. Mesial
C. Facial
D. Palatal
The shortest root on a maxillary first molar is:
A. Mesio- buccal
B. Disto – buccal
C. Lingual
D. All are of equal length
A distinguishing characteristic of a maxillary first premolar that identifies it as right or left is the:
A. Height of the lingual cusp
B. Mesial inclination of the lingual cusp
C. Flattened area beneath the contact on the distal surface
D. Greater length of the mesial cusp ridge on the lingual cusp.
The most common curvature of the palatal root of maxillary first molar is:
A. Facial
B. Lingual
C. Distal
D. Mesial
Which of the premolars is usually the smallest:
A. Maxillary first
B. Maxillary second
C. Mandibular first
D. Mandibular second
Five cusps are present in:
A. Maxillary first molar only
B. Mandibular first molar only
C. Maxillary and mandibular first molar
D. Maxillary and Mandibular second molar
In which of the tooth is the mesiodistal measurements is greater lingually than facially:
A. Maxillary 1stpremolar
B. Mandibular 2ndpremolar
C. Mandibular 1st premolar
D. Maxillary 1st molar
In which of the tooth is the mesiodistal measurements is greater lingually than facially:
A. Maxillary 1stpremolar
B. Mandibular 2ndpremolar
C. Mandibular 1st premolar
D. Maxillary 1st molar
Greater crown bulk distal to the faciolingual bisecting plane of a tooth is most typical of the mandibular:
A. Central incisor
B. Lateral incisor
C. Canine
D. Second premolar
Which of the following is the largest root:
A. The lingual root of a maxillary first molar
B. The lingual root of a maxillary second molar
C. The root of a mandibular canine
D. The root of a maxillary canine
The shape of the occlusal surface of the permanent maxillary first molar is:
A. Oval
B. Trapezoidal
C. Triangular
D. Rhomboidal
The number of line angles a permanent maxillary central incisor is:
A. Two
B. Four
C. Six
D. Eight
Dentin islands are frequently found in the root canals of which of the following permanent teeth:
A. Maxillary lateral incisor & mandibular canine
B. Maxillary 2nd premolar & maxillary 1st molar
C. Maxillary 2nd premolar & mandibular canine
D. Maxillary 1st molar & mandibular 2nd premolar
Ratio of mesiodistal width to height of crown of maxillary canine is:
A. 6:10
B. 8:10
C. 6:8
D. 7:10
An 8-year old child comes to your clinic with large front teeth having jagged margins, what is the treatment plan for this patient:
A. Smoothen the jagged margins and apply fluoride varnish
B. Build up other teeth to large size
C. Extraction of big teeth
D. Assure him and send him back
Crown formation of all permanent teeth except third molars is completed between:
A. Birth to 8 years
B. Birth to 12 years
C. Birth to 6 years
D. 6 years to 12 years
According to Schour & Massler the crown completion of both permanent maxillary and mandibular first molars is:
A. 1½ 2 years
B. 2½ – 3 years
C. 3-4 years
D. 3-5 years
Which of the following tooth shows largest Mesio-buccal ridge:
A. Maxillary 1st premolar
B. Maxillary 2nd premolar
C. Mandibular 1st molar
D. Mandibular 2nd premolar
The number of point angles in a permanent mandibular first molar is:
A. 6
B. 8
C. 4
D. 10
The term diphydont means:
A. Second dentition
B. Two same sets of dentition
C. Two separate sets of dentition
D. More than two sets of dentition
Which of the following has a nonfunctional cusp:
A. Mandibular canine
B. Maxillary second premolar
C. Mandibular first premolar
D. None of the above
If the pulp of a single rooted tooth canal were triangular in cross section with the base of the triangle located facially and the apex lingually with a longer mesial side than distal side; the tooth most likely is:
A. Maxillary central incisor
B. Maxillary second premolar
C. Mandibular lateral incisor
D. Mandibular central incisor
The permanent mandibular second molar differs from the permanent mandibular first molar in number of:
A. Cusps
B. Roots
C. Lingual grooves
D. Marginal ridges
Fourth canal is present in:
A. Mesiobuccal roots of maxillary first molar
B. Distal root of mandibular first molar
C. Both of the above
D. None of the above
The geometric outline of the buccal surface of posterior teeth are:
A. Trapezoidal
B. Rhomboidal
C. Quadrilateral
D. Square
The lingual cusp of lower first premolar is compared to the development of:
A. Cusp of carabelli
B. Distolingual cusp of molars
C. Lingual cusp of second premolar
D. Cingulam of canine
The maxillary molar crown of an early fossil primate featured a trigone made of three main cusps, these cusps were:
A. Distrobuccal, distolingual and Mesiolingual
B. Distolingual, Mesiobuccal, and Linguo buccal
C. Mesiobuccal, Distobuccal and Mesiolingual
D. Mesiolingual, Mesiobuccal and distolingual
Which line angle area is most acute when a permanent maxillary second molar is viewed occlusally:
A. Mesiofacial
B. Distofacial
C. Mesiolingual
D. Distolingual
What is the functional form of anterior teeth from the mesial or the distal aspect:
A. Rhomboidal
B. Trapezoidal
C. Elliptical
D. Wedge- shaped
Permanent Mandibular central incisor develops from:
A. 1 lobe
B. 3 lobes
C. 4 lobes
D. 5 lobes
Cervical cross section of maxillary first premolar is:
A. Dumbell
B. Kidney shape
C. Elliptical
D. Oval
Acute angled cusps in permanent maxillary first molar are:
A. DB and ML
B. MB and DL
C. MB and DB
D. ML and DL
Tooth with most variable occlusal anatomy:
A. Maxillary third molar
B. Mandibular third molar
C. Maxillary second premolar
D. Mandibular second premolar
Mesial concavity making the prognosis poor for a furcation involvement is present in:
A. Maxillary canine
B. Maxillary 1st premolar
C. Mandibular 1st premolar
D. Maxillary 2nd premolar
Corner stones of dental arches are:
A. Canines
B. First premolars
C. First molars
D. Second molars
Oblique ridge in maxillary first molar joins which of the following cusps:
A. DL and DB
B. ML and MB
C. ML and DB
D. DL and MB
Upper 4 resembles 5 from which aspect ?
A. Buccally
B. Lingually
C. Occlusal
D. Proximally
Which of the following has a bifid root ?
A. 32,42
B. 31,41
C. 34,44
D. 13,23
Largest tooth in the mandibular arch is:
A. Canine
B. Decidous first molar
C. Permanent first molar
D. Third molar
Cusp of carbelli is present on ________ surface of the permanent maxillary molar ?
A. Mesial surface
B. Palatal surface
C. Buccal surface
D. Mesial half of the palatal surface
On which of the following permanent teeth is it most difficult to distinguish between mesial and distal aspects ?
A. Maxillary central incisor
B. Mandibular central incisor
C. Mandibular lateral incisor
D. Mandibular second premolar
Single central pit is formed on occlusal surface of:
A. Mandibular first premolar
B. Mandibular second premolar
C. Maxillary first premolar
D. Maxillary second premolar
In comparison to maxillary central incisor , Maxillary canine has a height of contour that is:
A. More
B. Less
C. Same
D. Different on different teeth
Tooth with smallest root is:
A. Maxillary central incisor
B. Mandibular lateral incisor
C. Maxillary lateral incisor
D. Mandibular central incisor
Which of the following is a smallest posterior tooth:
A. Maxillary first premolar
B. Mandibular first premolar
C. Maxillary second premolar
D. Mandibular second premolar
The mesial surface of the crown is almost parallel to long axis and the root of a:
A. Maxillary 1st premolar
B. Mandibular 2nd premolar
C. Maxillary canine
D. Mandibular canine
Using occlusal morphology as guide , the Mandibular third molar is most similar to:
A. Maxillary permanent first molar
B. Mandibular permanent first molar
C. Mandibular permanent second molar
D. Mandibular decidous second molar
Which of the following premolars has a mesial marginal ridge more cervical than the distal marginal ridge:
A. Maxillary 1st premolar
B. Maxillary 2ndpremolar
C. Mandibular 1st premolar
D. Mandibular 2nd premolar
A pronounced developmental groove is usually present on the mesial marginal ridge of a permanent:
A. Mandibular third molar
B. Mandibular second premolar
C. Maxillary second molar
D. Maxillary first premolar
Most common morphological variation is seen in:
A. Maxillary lateral incisor
B. Mandibular lateral incisor
C. Maxillary canine
D. Mandibular canine
Which of the following teeth have more than one occlusal form:
A. Maxillary 1st premolar
B. Maxillary 2nd premolar
C. Maxillary 1st molar
D. Mandibular 1stmolar
If a mandibular canine has bifurcated roots, they are most commonly placed:
A. Mesial and distal
B. Facial and lingual
C. Mesiobuccal and distobuccal
D. Mesiolingual and distolingual
Largest cusp in permanent mandibular first molar is:
A. Mesiobuccal
B. Distobuccal
C. Mesio lingual
D. Distal
Palatogingival groove is found in:
A. Maxillary lateral incisor
B. Maxillary first premolar
C. Maxillary first molar
D. All of the above
The shape of the occlusal surface of the permanent maxillary first molar is:
A. Oval
B. Trapezoidal
C. Triangular
D. Rhomboidal

Category: Permanent Dentition Objective Questions

300+ TOP Permanent Dentition MCQs and Answers Oral Anatomy

Permanent Dentition Multiple Choice Questions : Oral Anatomy Quiz

Permanent Dentition objective questions with answers pdf download online exam test