DH101 Dental Hygiene Quiz #3 Module # 5

EOIO, Hard Tissue Examination of the Dentition

All of the following are types of palpation when conducting an extraoral examination except:

bisagittal

static occlusal relationships seen in the maximum intercuspation of the teeth of the opposing arches

centric occlusion (bite of convenience)

symmetrical mechanical relationship between both arches of teeth with even bilateral distribution of occlusal surfaces

normal occlusion (static, Class 1)

Black’s classification of carious lesions

Class 1- cavities in pits and fissures

Class 2- Cavities in proximal surfaces of molars and premolars

Class 3- Cavities in proximal surfaces of incisors and canines that do not involve the incisal edge

Class 4- Cavities in proximal surfaces of incisors or canines that involve the incisal edge

Class 5- Cavities in the cervical 3rd of facial or lingual surfaces (not pit or fissure)

Class 6- Cavities on incisal edges and cusps

mesiognathic: slightly protruded jaws that give facial profile flat appearance

facial profile of normal occlusion (class 1)

mesiobuccal cusp of max first perm molar occludes with buccal groove of man first perm molar

molar relation of normal occlusion

max perm canine occludes w/distal half of man canine and mesial half of man 1st premolar

canine relation of normal occlusion

-occurs on surface not previously affected

-aka initial or incipient caries

primary cavity

-sudden, rapidly spreading caries resulting in early pulp involvement where usually 10 or more new lesions occur each year on surfaces not usually affected

-3 kinds: early childhood, adolescent, & xerostomia-induced

-restoration challenging b/c of deep, burrowing nature of decay

rampant cavity

-found on very young children

-usual cause is routine bottle use or prolonged breastfeeding (milk, etc has sugar)

-aka nursing bottle mouth, baby bottle syndrome or caries, and prolonged nursing habit

early childhood cavity

• Pre/ Post-auricular

• Occipital

• Medial/ Post-cervical

• Supraclavicular

• Submental

• Submandibular

• Parotid

mechanical wearing away of tooth surfaces by forces OTHER THAN mastication

-lesion originates from mechanical abrasion

-cervical areas most commonly affected

-at incisal edge or on occlusal surface

abrasion

breaks that result from microfractures in the hydroxyapatite crystals of enamel and dentin.

-V or wedge shaped w/hard, smooth, shiny surface and clearly defined margins

-except for incisal biting habits, lesions occur on exposed cementum first and extend into dentin

abfraction

The advantages of following a routine order for examination include all of the following, except:

inspiring the patient to have an examination on a daily basis.

A) A bilateral examination uses two hands at the same time to examine corresponding structures on opposite sides of the body. B) A bimanual examination uses fingers and thumb from each hand-applied simultaneously in coordination.

Both statements are true

A) A tumor is 1 cm or less in width. B) A nodule is greater than 5 mm but less than 2 cm in diameter.

Statement A is false and statement B is true

Which of the following is a depressed lesion?

ulcer

The definition of erythema is:

red area of variable size and shape.

The main objective of an extraoral and intraoral examination is to:

detect oral cancer at an early stage.

A) The most common sites for a neoplasm are the floor of the mouth, the lateral part of the tongue, the lower lip, and the soft palate complex. B) Self-examination of the patient's oral tissues at home is sufficient to detect cancer.

Statement A is true and statement B is false.

The ______________ lymph nodes are located directly in front of the ear.

pre auricular

A bulla is:

fluid filled

The pathologist has examined a cytology smear, and the dental office receives a report that states that the specimen is categorized as an HSIL ( High-grade squamous intraepithelial lesion- severe dysplasia). A white patch or plaque that cannot be scraped off is which of the following?

Leukoplakia

verrucous

The texture of this lesion would BEST be described as:

Pedunculated

The base of attachment for this lesion is:

When primary teeth are being exfoliated and permanent teeth move in to take their places, which occurs between the ages of 6 and 12 years, this is considered:

mixed dentition

All of the following are requirements for the development of a carious lesion, except

Microorganisms

fermentable carbohydrates

susceptible tooth surface

biofilm

biofilm

Which of the following is an example of a compound cavity?

Mesial-occlusal cavitiy

T/F Incipient lesions involve subsurface demineralization, which appears as a white area with no breakthrough to the enamel surface.

True

What are the two types of dental caries described by location?

Pit and fissure, and smooth surface

A soft, progressive lesion of cementum and dentin that involves bacterial infection and invasion is known as:

root caries

The wearing away of a tooth as a result of tooth-to-tooth contact is known as:

attrition

Distoclusion (Class II) occurs when:

The buccal groove of the mandibular first permanent molar is distal to the mesiobuccal cusp of the maxillary first permanent molar (Retrognathic)

The loss of tooth substance by a chemical process that does not involve known bacterial action is known as:

erosion

During an exam you notice that your patient's left mandibular second premolar (#20) is facial to the maxillary left second premolar (#13); this condition is called:

crossbite

During your exam, you noticed that the incisal edges of #8 & #9 occlude with the cervical third of the facial surfaces of #24 & #25; this would be identified as:

deep overbite

Having a prominent maxilla and a mandible positioned posterior to its normal relationship would be classified as:

retrognathic

A patient who has a Class III occlusion would most likely have a profile that is:

prognathic

When molars and premolars occlude cusp to cusp as viewed mesiodistally, this is classified as :

end-to-end bite

When incisor surfaces of maxillary teeth occlude with incisor surfaces of mandibular teeth as viewed mesiodistally, this is classified as:

edge-to-edge bite

When there is a lack of occlusal or incisal contact between certain maxillary and mandibular teeth because either or both have failed to reach the line of occlusion, this is classified as:

open bite

The horizontal distance between the labioincisal surfaces of the mandibular incisors and the linguoincisal surfaces of the maxillary incisors is :

overjet

The vertical distance by which the maxillary incisors overlap the mandibular incisors is classified as:

overbite

The determination of the classification of occlusion is based on the principles of:

Edward Angle.

Occlusal contacts that are made outside of the normal range of function in occlusion of:

parafunctional contacts

The purpose of a proximal contact is:

All of the above (to prevent food impaction, to stabilize the position of the teeth in the dental arch, and to prevent drifting)

The shepherd's hook explorer is commonly used for examining:

pits and fissures and smooth surfaces.