intro to partial removable dentures Flashcards
what is an articulator
a hinged instrument to which the maxillary and mandibular casts are attached, and which reproduces recorded relationships of the mandible to the maxilla
articulators assist the study of the occlusion and the formation of the occlusal surfaces of prostheses and restorations
what is a dental surveyor
an instrument used to survey casts, also used to prepare parallel surfaces on restorations
what is a prosthesis
an artificial body part such as an arm, foot or tooth that replaces a missing part
removable meaning
not fixed permanently in the patients mouth
partial meaning
replaces some of the teeth
denture meaning
a set of replacement teeth often made from cobalt chrome or acrylic
what are some reasons for missing teeth
cancer
caries
periodontitis
trauma
hypodontia
endodontic disease
what are the extra oral consequences of missing teeth
change in facial appearance and tmj issues
what are the intra oral consequences of missing teeth
alveolar resorption
tooth movement
toothwear
why does missing teeth affect the appearance
loss of hard and soft tissues which support the face
functional impact of missing teeth
speech and mastication affected
how can missing teeth be replaced
- resin bonded bridge work
- conventional bridgework
- implant crowns
- implant bridgework
- removable partial dentures
- complete dentures
- implant retained dentures
what is a shortened dental arch
a dentition where most posterior teeth are missing
in the right circumstances, non replacement of posterior missing teeth can provide a stable and acceptable dentition
what is conventional bridgework
abutment teeth either side of the space prepared for the crowns and the replacement tooth Pontic is held in place by the retainer attached to the abutting teeth
what is a free end saddle
this is when there is only one abutment tooth
what is a bounded saddle
when there are two abutment teeth
support meaning in dentures
the resistance to vertical movement of the denture toward the tissue
retention meaning
the resistance to displacement of the denture away from the tissue
stability meaning
resistance to horizontal lateral movement of the denture
which elements are used when describing partial dentures
material
pattern of missing teeth
method of support
number of missing teeth
summarise use of acrylic for dentures
acrylic resin denture base holds the replacement teeth
thermoplastic acrylic resin is used in dentistry: polymethylmethacrylate
has a clasp to help with retention
describe the use of cobalt chrome for removable partial dentures
cast framework that holds the replacement teeth
metal alloy of cobalt and chromium
why is material thermoplastic nylon resin not used in glasgow
poor evidence of success
what are the classifications for pattern of missing teeth
Kennedy classifications
