Reasons for rendering a patient edentulous Flashcards
1
Q
What is a complete denture?
A
- removable dental prosthesis that replaces an entire dental arch (maxilla and/or mandible)
- full denture
2
Q
CU
A
complete upper
3
Q
CL
A
complete lower
4
Q
F/F
A
complete upper and lower
5
Q
-/F
A
natural upper dentition, complete lower
6
Q
What are some problems associated with having a complete denture and natural teeth?
A
- occlusion is not controlled like in F/F
- uneven bite
- stability is difficult to achieve
7
Q
What are the different types of complete denture?
A
- PMMA (acrylic), most common, usually last 5 years
- CoCr and acrylic, rare, used in those with severe bruxism
- nylon (base) and porcelain (teeth), used in those with allergies to acrylic, deteriorate quickly (18 months)
8
Q
Edentulous
A
- when a person loses all their teeth
- debilitating, irreversible condition and considered final marker of disease burden of oral health, caused by failure to control the disease
9
Q
What factors are relevant in edentulism?
A
- age
- socioeconomic
- MH
- OH
10
Q
What are some of the effects of edentulism?
A
- self esteem
- general health (lack of nutrition due to limitations of mastication)
- quality of life
- speech (s/f/v sounds difficult)
- loss of masticatory function
- appearance
- ridge resorption
- soft tissue changes
- reduction in face height (assess this in EO exam)
11
Q
What is the classification of ridge resorption called?
A
Cawood and Howell
12
Q
Describe the atrophy stages of ridge resorption in the mandible.
A
- before extraction (tooth present)
- post extraction
- high, well-rounded ridge
- knife-edge ridge
- low, well-rounded ridge
- depressed bone levels (nerves/blood vessels may be exposed)
13
Q
How do the maxilla and mandible differ in ridge resorption?
A
- mandible more susceptible to severe resorption
- maxilla tends to have better ridges for denture retention
14
Q
Why are complete dentures a compromise restoration?
A
- inefficient at mastication
- requires good neuro-muscular control (stroke/parkinsons)
- stability of lower dentures compromised by tongue movements
15
Q
What are some common reasons for patients to become edentulous?
A
- rampant caries
- periodontal disease
- debilitating tooth wear
- failing dentition
- occlusal collapse
- appearance