Premolar Anatomy And Functions! Trivia Quiz

Approved & Edited by ProProfs Editorial Team

The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.

Learn about Our Editorial Process

| By Michelle

Michelle

Community Contributor

Quizzes Created: 3 | Total Attempts: 5,565

Questions: 18 | Attempts: 1,799 | Updated: Mar 21, 2023

Questions

Settings

Create your own Quiz

Questions and Answers

1.

The function of premolars are to pierce, tear, and ________.

Explanation
The premolars are responsible for piercing, tearing, and grinding food. They have sharp cusps and a larger surface area compared to the incisors and canines, allowing them to effectively grind and break down food particles during the chewing process.

Rate this question:

3
4 0
2.

Maxillary first premolars are __________ (larger/smaller) than maxillary second premolars.

Explanation
Maxillary first premolars are larger than maxillary second premolars. This is because the first premolars have a larger crown size and a more robust root structure compared to the second premolars. The larger size of the first premolars allows for better chewing and grinding of food, while the smaller size of the second premolars allows for better alignment and spacing within the dental arch.

Rate this question:

2
4 0
3.

Mandibular first premolars are ________(larger/smaller) than mandibular second premolars.

Explanation
Mandibular first premolars are smaller than mandibular second premolars. This is because as we move posteriorly in the dental arch, the teeth generally become larger in size. Therefore, the second premolars, which are located closer to the back of the mouth, are larger than the first premolars.

Rate this question:

4
4.

The shape of the buccal view of premolars is called __________.

Explanation
The correct answer is "pentagon." The buccal view of premolars is characterized by a shape that resembles a pentagon. This means that when looking at the tooth from the cheek side, it has five sides or angles. The term "pentagons" is the plural form of pentagon, and "a pentagon" is the singular form.

Rate this question:

4
5.

Checkmark all of the general features that associate with premolars:
- A.
  
  3 roots
- B.
  
  2 roots
- C.
  
  1 root
- D.
  
  Shorter crown than anteriors
- E.
  
  Vertical buccal ridge
- F.
  
  Root concavities
- G.
  
  Cusp of Carabelli
Correct Answer(s)
B. 2 roots
C. 1 root
D. Shorter crown than anteriors
E. Vertical buccal ridge
F. Root concavities

Explanation
Maxillary first premolar is the only premolar with 2 roots.

Rate this question:
6.

Maxillary premolars can penetrate sinuses.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Maxillary premolars are the teeth located in the upper jaw, and they have roots that can extend into the maxillary sinus, which is a hollow space in the skull. This anatomical feature makes them capable of penetrating the sinuses. Therefore, the statement "Maxillary premolars can penetrate sinuses" is true.

Rate this question:
7.

Maxillary second premolars always have one root.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Usually have one root but may have two occasionally.

Rate this question:
8.

Maxillary premolars are centered over the root(s).
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
Maxillary premolars are located in the upper jaw and are positioned directly over the root(s) of the tooth/teeth. This means that the premolars are aligned vertically above the roots, providing stability and support to the teeth. Therefore, the statement that maxillary premolars are centered over the root(s) is true.

Rate this question:
9.

In maxillary first premolars, the buccal cusp is ________ higher/level/shorter in comparison to the lingual cusp.

Correct Answer
Higher

Explanation
The correct answer is "higher" because in maxillary first premolars, the buccal cusp is positioned higher in comparison to the lingual cusp. This anatomical feature is characteristic of this particular tooth and can be observed in dental radiographs or during dental examinations.

Rate this question:

4
10.

Which surface of the maxillary first premolars contains a root concavity & a more rounded crown outline?
- A.
  
  Distal
- B.
  
  Mesial
- C.
  
  Buccal
- D.
  
  Lingual
Correct Answer
B. Mesial

Explanation
The mesial surface of the maxillary first premolars contains a root concavity and a more rounded crown outline. This means that the side of the tooth that is closer to the midline of the mouth (mesial) has a concavity in the root and a rounded shape in the crown.

Rate this question:
11.

In maxillary second premolars and mandibular premolars, the lingual cusp is smaller than the buccal cusp.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
Lingual cusps are larger than the buccal on maxillary second premolars, unlike maxillary first premolars.

Rate this question:

1
0
12.

The big buccal cusps of mandibular premolars can be mistaken for a ______________.

Correct Answer
cingulum

Explanation
The big buccal cusps of mandibular premolars can be mistaken for the cingulum. The cingulum is a prominent convexity on the lingual surface of anterior teeth, while the buccal cusps are located on the buccal surface of premolars. However, due to their size and position, the buccal cusps can sometimes be misidentified as the cingulum, leading to confusion in dental examinations or procedures.

Rate this question:

1
4 0
13.

The mandibular first premolar has the shorter root.
- A.
  
  True
- B.
  
  False
Correct Answer
A. True

Explanation
The mandibular first premolar typically has a shorter root compared to other premolars. This is due to the fact that the mandibular first premolar is located towards the front of the mouth and experiences less occlusal forces compared to the other premolars. As a result, it does not require as much root support, leading to a shorter root length.

Rate this question:
14.

Mandibular first premolars have a CEJ that's more occlusal on the ______ surface.
- A.
  
  Mesial
- B.
  
  Distal
- C.
  
  Lingual
- D.
  
  Buccal
Correct Answer
A. Mesial

Explanation
The CEJ (cementoenamel junction) refers to the point where the enamel of a tooth meets the cementum. In the case of mandibular first premolars, the CEJ is more occlusal (towards the biting surface) on the mesial surface. This means that the CEJ is positioned higher on the mesial side of the tooth compared to the other surfaces (distal, lingual, buccal).

Rate this question:
15.

Mandibular second premolars are also known as bicuspids.
- A.
  
  True
- B.
  
  False
Correct Answer
B. False

Explanation
They can have 3 cusps, there's not always called bicuspids.

Rate this question:
16.

The lingual cusp(s) of mandibular second premolars are ________ than the buccal.
- A.
  
  Larger
- B.
  
  Wider
- C.
  
  Smaller
- D.
  
  Sharper
Correct Answer
C. Smaller

Explanation
The lingual cusp(s) of mandibular second premolars are smaller than the buccal. This means that the cusps on the inner side of the tooth are smaller in size compared to the cusps on the outer side of the tooth. This size difference is a characteristic feature of mandibular second premolars.

Rate this question:

2
0
17.

In a 3 cusp type mandibular second premolar, the ML cusp is ______ than the DL cusp.
- A.
  
  Shorter & rounder
- B.
  
  Sharper & shorter
- C.
  
  Wider & shorter
- D.
  
  Wider & longer
Correct Answer
D. Wider & longer

Explanation
In a 3 cusp type mandibular second premolar, the ML cusp is wider and longer than the DL cusp. This means that the mesiolingual cusp of the tooth is broader and extends further in comparison to the distolingual cusp.

Rate this question:
18.

3rd most commonly missing teeth.
- A.
  
  #13 & #29
- B.
  
  #20 & #29
- C.
  
  #28 & #12
- D.
  
  #12 & #5
Correct Answer
B. #20 & #29

Explanation
The correct answer is #20 & #29. These are the 3rd most commonly missing teeth.

Rate this question:

Premolar Anatomy And Functions! Trivia Quiz

The function of premolars are to pierce, tear, and ________.

Maxillary first premolars are __________ (larger/smaller) than maxillary second premolars.

Mandibular first premolars are ________(larger/smaller) than mandibular second premolars.

The shape of the buccal view of premolars is called __________.

Checkmark all of the general features that associate with premolars:

Maxillary premolars can penetrate sinuses.

Maxillary second premolars always have one root.

Maxillary premolars are centered over the root(s).

In maxillary first premolars, the buccal cusp is ________ higher/level/shorter in comparison to the lingual cusp.

Which surface of the maxillary first premolars contains a root concavity & a more rounded crown outline?

In maxillary second premolars and mandibular premolars, the lingual cusp is smaller than the buccal cusp.

The big buccal cusps of mandibular premolars can be mistaken for a ______________.

The mandibular first premolar has the shorter root.

Mandibular first premolars have a CEJ that's more occlusal on the ______ surface.

Mandibular second premolars are also known as bicuspids.

The lingual cusp(s) of mandibular second premolars are ________ than the buccal.

In a 3 cusp type mandibular second premolar, the ML cusp is ______ than the DL cusp.

3rd most commonly missing teeth.