Partial dentures Flashcards
3 advantages of partial dentures?
- improve aesthetics
- improve function - speech and mastication
- prevention of toothwear and drifting
5 disadvantages of partial dentures?
- increase in plaque accumulation
- periodontal disease risk
- increased caries rate
- damage to underlying soft tissue
- damage to remaining teeth
- gingival stripping
4 things to include in assessment for designing a partial denture?
- Current denture assessment
- Oral health and risk factors
- Assessment of occlusion
- Assessment of index teeth
What is kennedy class 1
bilateral free end saddle
What is kennedy class 2?
Unilateral free end saddle
What is kennedy class 3
Unilateral bounded saddle
What is kennedy class 4?
Anterior bounded saddle that crosses the midline
KENNEDY CLASS?
CLASS II MOD 1
KENNEDY CLASS?
CLASS II MOD 2
3 reasons why to Survey casts?
- determine the path of insertion
- determine the position and depth of undercuts
- determine the presence of guide planes
What is the path of displacement?
the direction in which the prosthesis tends to be dislodges during function
If the path of insertion and the path of displacement are the same this will increase retention, True or False?
False , if they are different the retention is better
3 Advantages of CoCr partial denture over acrylic?
- Stronger
- less bulky
- Better tolerated
2 Disadvantages of Cocr compared to acrylic?
- more expensive
- difficult to add to
2 advantages of acrylic over CoCr partial denture?
- Cheaper
- easier to add to
3 disadvantages of acrylic compared to CoCr?
- Weaker
- Thicker (bulky)
- less well tolerated
Which connector?
Buccal bar due to lingually tilted teeth
which connector?
Lingual bar provides clearance for cleaning and more comfortable to the patient