Dental Anatomy and Terminology: Master the Basics of Teeth and Oral Cavity

Question 1

Which dental tissue is the hardest substance in the human body?

Accepted Answer

Enamel

Answer

Dentin

Answer

Cementum

Answer

Pulp

Question 2

What is the correct dental abbreviation for 'maxillary left first molar'?

Accepted Answer

UL6

Answer

UR6

Answer

LR6

Answer

LL6

Question 3

Which of the following is NOT a function of saliva in the oral cavity?

Accepted Answer

Food digestion

Answer

Lubrication

Answer

Caries prevention

Answer

Plaque control

Question 4

Which type of dental restoration replaces missing teeth and is supported by adjacent teeth?

Accepted Answer

Bridge

Answer

Crown

Answer

Denture

Answer

Veneer

Question 5

What is the procedure called when plaque and tartar are removed from the teeth?

Accepted Answer

Scaling

Answer

Debridement

Answer

Curettage

Answer

Extraction

Question 6

What is the name of the instrument used by dentists to visualize the inside of the mouth?

Accepted Answer

Mouth mirror

Answer

Explorer

Answer

Scalpel

Answer

Syringe

Question 7

Which function do molars primarily serve in the digestive process?

Accepted Answer

Crushing and grinding food

Answer

Grasping and tearing food

Answer

Mixing and chewing food

Question 8

The crown of a tooth is:

Accepted Answer

The visible portion above the gum line

Answer

The portion of the tooth anchored within the jawbone

Answer

The middle region that connects the crown and root

Question 9

Enamel, a dental tissue primarily located on the tooth's crown, is characterized by:

Accepted Answer

Hardness and durability

Answer

Softness and sensitivity

Answer

Only present in deciduous teeth

Answer

Containing blood vessels and nerves

Question 10

The primary function of incisor teeth is to:

Accepted Answer

Cut and divide food into smaller pieces

Answer

Tear and shred food fibers

Answer

Grind and crush food for swallowing

Question 11

The structure responsible for attaching the tooth to the jawbone is the:

Accepted Answer

Periodontal ligament

Answer

Pulp chamber

Answer

Cementum

Answer

Alveolar bone

Question 12

The dental abbreviation "M" represents which surface of a tooth?

Accepted Answer

Mesial (towards the midline)

Answer

Lingual (tongue side)

Answer

Occlusal (chewing surface)

Answer

Buccal (cheek side)

Question 13

Which dental instrument is commonly used to remove decayed tooth material?

Accepted Answer

Dental bur

Answer

Toothpaste

Answer

Dental floss

Answer

Air-polishing device

Question 14

The main benefit of fluoride in dentistry is:

Accepted Answer

Strengthening tooth enamel and preventing cavities

Answer

Whitening teeth and improving aesthetics

Answer

Killing bacteria and reducing inflammation

Answer

Removing stains and discoloration

Question 15

An example of a dental impression material is:

Accepted Answer

Alginate

Answer

Ceramic

Answer

Amalgam

Answer

Composite resin

Question 16

Occlusion refers to:

Accepted Answer

The relationship between the upper and lower teeth when the jaws are closed

Answer

The spacing between the teeth

Answer

The alignment of teeth within the dental arch

Answer

The condition of the gums

Question 17

Which type of tooth is primarily used for tearing food?

Accepted Answer

Canine

Answer

Premolar

Answer

Incisor

Question 18

What is the name of the hard, outermost layer of the tooth that protects the crown?

Accepted Answer

Enamel

Answer

Cementum

Answer

Pulp

Answer

Dentin

Question 19

Which dental instrument is used to reflect light into the oral cavity and aid in visualization during examinations?

Accepted Answer

Mouth mirror

Answer

Scalpel

Answer

Forceps

Question 20

What is the Latin term for the root of a tooth?

Accepted Answer

Radix

Answer

Collis

Answer

Corona

Answer

Cervix

Question 21

What is the term for the space between two adjacent teeth?

Accepted Answer

Interdental

Answer

Intradental

Answer

Periradicular

Answer

Periodontal

Question 22

Which function of saliva involves moistening the oral cavity and facilitating speech?

Accepted Answer

Lubrication

Answer

Dehydration

Answer

Mineralization

Question 23

What is the name of the fibrous tissue that connects the tooth to the jawbone?

Accepted Answer

Periodontal ligament

Answer

Gingiva

Answer

Alveolar bone

Answer

Mucosa

Question 24

Which type of dental occlusion occurs when the teeth are in the most stable position?

Accepted Answer

Centric occlusion

Answer

Retrusive occlusion

Answer

Protrusive occlusion

Answer

Lateral occlusion

Question 25

What are the initials for the professional organization that represents dentists in the United States?

Accepted Answer

ADA

Answer

AGD

Answer

AAPD

Answer

ADEA

Question 26

Which of the following is the primary function of teeth?

Accepted Answer

Mastication

Answer

Protection of the tongue

Answer

Vocalization

Answer

Facial expression

Question 27

What is the hard, calcified tissue that covers the outer surface of the tooth called?

Accepted Answer

Enamel

Answer

Cementum

Answer

Dentin

Answer

Pulp

Question 28

Which type of tooth is characterized by a single, pointed cusp and is used for tearing and cutting food?

Accepted Answer

Canine

Answer

Premolar

Answer

Molar

Answer

Incisor

Question 29

What is the correct dental notation for the second permanent mandibular left molar?

Accepted Answer

LL6

Answer

LR6

Answer

UL6

Answer

UR6

Question 30

Which of the following structures connects the tooth to the jawbone?

Accepted Answer

Periodontal ligament

Answer

Sharpey's fibers

Answer

Gingival sulcus

Question 31

Which type of occlusion is characterized by an excessive vertical overlap of the maxillary teeth over the mandibular teeth?

Accepted Answer

Overbite

Answer

Edge-to-edge bite

Answer

Overjet

Answer

Crossbite

Question 32

The primary factor responsible for the development of dental caries is:

Accepted Answer

Acid produced by bacterial plaque

Answer

Excessive sugar consumption

Answer

Genetics

Answer

Poor oral hygiene

Question 33

Which of the following is a common periodontal disease?

Accepted Answer

Gingivitis

Answer

Caries

Answer

Pulpitis

Question 34

What is the primary purpose of obtaining a dental radiograph?

Accepted Answer

To visualize internal structures of teeth and surrounding bone

Answer

To solely diagnose periodontal disease

Answer

To assess tooth alignment

Answer

To determine the length of tooth roots

Question 35

Which type of tooth has a single, cone-shaped cusp that is pointed?

Accepted Answer

Canine

Answer

Incisor

Answer

Premolar

Answer

Molar

Question 36

Which dental tissue is the most highly mineralized and the hardest substance in the human body?

Accepted Answer

Enamel

Answer

Dentin

Answer

Cementum

Answer

Pulp

Question 37

The space between adjacent teeth is known as the:

Accepted Answer

Interdental space

Answer

Periodontal space

Answer

Gingival sulcus

Answer

Oral cavity

Question 38

The root of a tooth is covered by:

Accepted Answer

Cementum

Answer

Enamel

Answer

Periodontal ligament

Answer

Dentin

Question 39

Which part of the tooth is responsible for providing sensation and nourishment to the tooth?

Accepted Answer

Dental pulp

Answer

Dentin

Answer

Enamel

Answer

Cementum

Question 40

The term 'occlusion' refers to:

Accepted Answer

The contact between opposing teeth

Answer

The arrangement of teeth in the jaw

Answer

The shape of the teeth

Answer

The biting force

Question 41

Which type of dental assistant is primarily responsible for creating dental appliances and restorations in a dental laboratory?

Accepted Answer

Dental laboratory assistant

Answer

Dental hygienist

Answer

Oral surgeon

Answer

Registered dental assistant

Question 42

The process of removing calculus from teeth is known as:

Accepted Answer

Scaling

Answer

Brushing

Answer

Flossing

Answer

Polishing

Question 43

Which type of tooth is primarily responsible for tearing and shredding food?

Accepted Answer

Canine

Answer

Incisor

Answer

Premolar

Question 44

The outer layer of the tooth crown, known for its hardness and resistance to wear, is called:

Accepted Answer

Enamel

Answer

Cementum

Answer

Dentin

Question 45

The point where two adjacent teeth touch is called the:

Accepted Answer

Contact point

Answer

Cusp

Answer

Incisal edge

Answer

Lingual surface

Question 46

A patient's tooth has fractured, exposing the pulp. Which dental abbreviation best describes this situation?

Accepted Answer

EPT (Exposure of Pulp Tissue)

Answer

DO (Disto-Occlusal)

Answer

MOD (Mesio-Occluso-Distal)

Answer

RCT (Root Canal Treatment)

Question 47

Which of the following is NOT a component of the periodontium?

Accepted Answer

Enamel

Answer

Gingiva

Answer

Periodontal ligament

Answer

Cementum

Question 48

A tooth with a large, deep cavity is diagnosed with:

Accepted Answer

Caries

Answer

Attrition

Answer

Erosion

Answer

Abrasion

Question 49

The surface of a tooth that is used for chewing is called the:

Accepted Answer

Occlusal surface

Answer

Root surface

Answer

Incisal edge

Question 50

Which type of tooth is designed for tearing and gripping food?

Accepted Answer

Canine

Answer

Incisor

Answer

Premolar

Answer

Molar

Question 51

What is the name of the hard, calcified tissue that covers the crown of the tooth?

Accepted Answer

Enamel

Answer

Cementum

Answer

Dentin

Answer

Pulp

Question 52

Which surface of a tooth faces the cheek or lips?

Accepted Answer

Buccal

Answer

Lingual

Answer

Occlusal

Question 53

What is the abbreviation for 'maxillary right second premolar'?

Accepted Answer

UR5

Answer

UL8

Answer

LL1

Answer

LR4

Question 54

Which part of the tooth is responsible for providing nutrients and oxygen to the tooth?

Accepted Answer

Pulp

Answer

Cementum

Answer

Dentin

Answer

Enamel

Question 55

What is the name of the space between two adjacent teeth?

Accepted Answer

Interdental space

Answer

Diastema

Answer

Occlusal embrasure

Answer

Sulcus

Question 56

Which type of occlusion occurs when the upper teeth slightly overlap the lower teeth?

Accepted Answer

Overbite

Answer

Malocclusion

Answer

Crossbite

Answer

Overjet

Question 57

What is the term for the root canal system of a tooth?

Accepted Answer

Endodontic system

Answer

Periodontal system

Answer

Muscular system

Answer

Occlusal system

Question 58

Which surface of a tooth meets the opposing tooth when chewing?

Accepted Answer

Occlusal

Answer

Buccal

Answer

Lingual

Answer

Proximal

Question 59

What is the name of the tissue that lines the oral cavity and covers the teeth?

Accepted Answer

Oral mucosa

Answer

Enamel

Answer

Periodontal ligament

Answer

Gingiva