RPD CLINICAL - INTRO TO RPD AND PATIENT ASSESSMENT Flashcards
why do patients have missing teeth
Caries Periodontal disease Endodontic infection Trauma Cancer Congenitally absent – hypodontia
what are the consequences of missing teeth
Anatomical
Aesthetic
Functional
Psychological
what are the extra oral anatomical consequences of missing teeth
Changes in facial appearance as teeth give shape to the face
bone resorption
Progressive bone loss results in the chin tipping
Severe bone atrophy occurs and the maxilla comes backwards and the mandible goes forward (class III) giving a sunken in appearance
what are the intra oral anatomical consequences of missing teeth
Alveolar resorption
Tooth movement
Tooth wear
what is the consequences of tooth movement due to missing teeth
o Overtime, the teeth start growing into the space
o There is no room for an implant or bridge
o Partial denture can not even be used sometimes due to over-eruption
o Drifting and tilting can also occur and this can cause problems in the long term as it will cause derangement to the occlusion leading to TMJ problems
what is the aesthetic consequence of tooth movement due to missing teeth
Loss of hard and soft tissues which support the face
what is the functional consequence of missing teeth
Can effect mastication which can effect diet as many denture patients are on soft diets depending on how well they can chew
Effects speech
what is the psychological consequence of missing teeth
The more teeth that are lost the bigger the decline in the quality of life
Can have social implications
how can we replace missing teeth
Resin bonded bridgework Conventional bridgework Implant crowns Implant bridgework Removable partial dentures Complete dentures Implant retained dentures
what is a resin bonded bridgework
can be messiah cantilever or fixed/fixed bridge
does not require destruction of tooth tissues
what is the pontic
fake tooth
what is the retainer
metal wing
what is the abutment tooth
tooth that the support goes on
what is a conventional bridgework
cantilever or fixed fixed
more destructive of tooth tissues as crown prep required
normally metal ceramic crowns
what are implant crowns
The dental implant goes into the bone
The implant abutment goes on top
Then the implant crown – can be cemented in or screwed in
what are implant bridgework
Similar to conventional bridgework except the retainers are put on implant abutmenets
what are the 3 different types of complete dentures
removable
implant retained
implant supported
what is a removable denture
no attachment for stability
what is implant retained denture
snaps in place
what is implant supported denture
screw retained and non removable
what are the advantages of a removable partial denture
Generally less expensive
Minimal tooth prep
Longer edentulous spans can be restored
Replacement of missing alveolar ridge tissues is possible
Can be removed for cleaning and adjustments and repairs
what are the disadvantages of a removable partial denture
Clasps may be unattractive
Designs may be bulky, complicated and plaque retentive
May cause gagging
Retention and stability may be problematic
What is a saddle
where there is no teeth