Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Oral Biology > Oral Functions - Feeding > Flashcards

Oral Functions - Feeding Flashcards

You may prefer our related Brainscape-certified flashcards:
AP® Biology flashcards Biology 101 flashcards
1
Q

What are the feeding sequence components

A

Ingestion
Transport
Mechanical Processing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What is ingestion

A

Movement of food from the external environment into the mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

How is ingestion accomplished

A

Biting anterior teeth and using tools such as cutlery and cups

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

What role do the lips play in ingestion

A

Provide an anterior oral seal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is transport

A

Moving material from the front of the mouth to the level of the posterior teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

How is transport accomplished

A

Food is gathered on the tongue tip

Tongue retracts, pulling the material to the posterior teeth - takes about one second

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What is transport associated with

A

Retraction of the hyoid bone and narrowing of the oropharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

Why is mechanical processing necessary

A

Some foods must be broken down and mixed with saliva before they can be swallowed
Moist solid foods such as fruit have to have fluid removed before transport and swallowing

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Describe what happens in mechanical processing

A

Foods chewed or masticated by premolar and molar teeth

Some soft foods are squashed by tongue against hard palate

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Which groups of muscles are involved in food processing

A

The mandibular muscles
The supra-hyoid muscles
The tongue muscles
The lips and cheek muscles

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What role does the tongue play in chewing

A

Controls and transports the bolus within the mouth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

Describe bilateral chewing

A

The tongue moves the bolus from side to side of the mouth so muscles on one side aren’t overloaded

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

How is the bolus kept on the occlusal surfaces

A

The tongue and cheeks act in a reciprocal manner to place the food on the occlusal surfaces of the teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

What is the difference between how liquids and solids are swallowed

A

Liquids are swallowed from the mouth and there is a posterior oral seal
Solids are swallowed from the oropharynx and there is no oral seal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What are the phases of the chewing cycle and which muscles are active during each stage

A

Opening phase - jaw depressor muscles are active
Closing phase - jaw elevator muscles are active
Occlusal phase - mandible is stationary/teeth joined

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

Describe variations in the shape of the chewing cycle

A

When chewing brittle food such as carrots, the cycle will have a narrow shape
When chewing tough food such as meat, the cycle will have a wider shape

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

When designing dentures, when should teeth with cusps be used and why

A

If the patient performs ruminators mandibular movements to achieve a balanced occlusion

18
Q

When designing dentures, when should cuspless teeth be used

A

If dentures have occlusal surfaces which are evenly worn and flat suggesting vertical (chopping) mandibular movements

19
Q

Why should tongue movements be considered when designing prostheses

A

Inaccurate placement of mandibular posterior teeth might interfere with tongue movements and will compromise the retention and stability of the denture

20
Q

Where should teeth be placed when designing prostheses

A

On the tip of the alveolar ridge

21
Q

How does the tongue act during ingestion for patients with dentures

A

The tongue will move to support the denture

22
Q

What does chewing allow for

A

Mechanical breakdown of food
Facilitates swallowing
Ensures adequate digestion of most foods

23
Q

What dietary restrictions should a patient with deteriorated masticatory performance follow

A

Avoid foods that are difficult such as green vegetables and some meats

24
Q

What is the relation between poor mastication and malnutrition in those with GI tract disorders

A

No clear evidence that poor mastication causes malnutrition in people with GI tract conditions

25
Q

What does good masticatory performance correlate to

A

High occlusal contact area

26
Q

What is a shortened dental arch (SDA)

A

A minimum of 20 functional units which is considered to be acceptable for:

  • Masticatory function
  • Aesthetics
  • Maintenance of oral hygiene
27
Q

What are the advantages of SDA

A

Provides sufficient occlusal stability

Provides satisfactory comfort and appearance

28
Q

What should be done for a patient with an SDA

A

Attention must be given to maintaining healthy conditions rather than providing an RPD

29
Q

Would people rather an SDA or an RPD

A

SDA

30
Q

How does the number of people with a functional SDA correlate to age

A

The number of people who have a functional SDA fails dramatically with age

31
Q

What happens to biting forces in complete denture wearers

A

They are reduced and are carried by mucosa of the residual ridge which is not designed to bear masticatory loads

32
Q

How can biting forces be increased in patients complete denture wearers

A

By supporting dentures on teeth or implants

33
Q

How can missing teeth be replaced

A 
Mucosa supported prosthesis:
- complete
- partial
Tooth-supported prosthesis:
- removable
- fixed (bridges)
Bone supported prosthesis (implants)
34
Q

What type of dentures are used as mucosa-supported prostheses

A

Acrylic partial dentures

35
Q

What type of dentures are used as tooth-supporting prostheses

A

Cobalt-chrome partial dentures

36
Q

What are the different types of bridges

A

Fixed-fixed bridge
Cantilever bridge
Adhesive bridge/resin bonded bridge

37
Q

Describe a cantilever bridge

A

A pontic connected o a retainer at one end only
Used to replace single teeth
Not recommended when occlusal force on the pontic will be heavy

38
Q

Describe an adhesive/resin bonded bridge

A

An immediate, temporary bridge, followed by a permanent bridge once the tissues have settled
Quick, non-destructive, conserves tooth tissue, aesthetically pleasing and durable

39
Q

Which type of bridge has the highest success rate

A

Cantilever

40
Q

Describe the support of mucosa borne partial dentures

A

Occlusal load transmitted to bone via the oral mucosa - not recommended

41
Q

Describe the support of tooth borne partial dentures

A

Occlusal load transmitted to bone via the rests and PDL - recommended

Oral Biology (12 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions