17861156
Descrição
Mapa Mental por Alice Dolman, atualizado more than 1 year ago
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Criado por Alice Dolman
mais de 5 anos atrás
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Discuss the contra-indications
andundesirable effects of metal
partialdenture provision.
- • The supporting teeth should be physiologically sound. Abutment teeth are used to support the denture and
prevent it from dislodging
- If the teeth are compromised the metal denture will apply pressure causing it to weaken
the structure and possibly cause removal of the tooth.
- If the teeth are compromised the metal denture will apply pressure causing it to weaken
the structure and possibly cause removal of the tooth.
- • Periodontal breakdown- Clasped teeth suffer periodontal breakdown when excessive functional forces in
excess of their physiological limits are placed on them. This danger is most often witnessed in the abutment
teeth of free end saddle cases.
- The bony structure and soft tissues covering edentulous ridges and hard palate breakdown under
excess pressure, leading to resorbed ridges. Therefore itll lead to tooth mobility, possible
aggravation of existing periodontal diseases or inflammation of mucous membrane.
- The bony structure and soft tissues covering edentulous ridges and hard palate breakdown under
excess pressure, leading to resorbed ridges. Therefore itll lead to tooth mobility, possible
aggravation of existing periodontal diseases or inflammation of mucous membrane.
- • Oral Hygiene- Any component placed in the oral environment covers part of the tissue, this has an
undoubted affect on oral hygiene. The component should either be self-cleansing (have space beneath, around
it) or be easily removed to enable access for cleaning.
- If the patient is unlikely or unable to regularly clean bacteria can grow under the denture baring area which can
lead to inflammation of tissue that could progress to the underlying tissue and diseases such as teeth
decalcification and caries
- If the patient is unlikely or unable to regularly clean bacteria can grow under the denture baring area which can
lead to inflammation of tissue that could progress to the underlying tissue and diseases such as teeth
decalcification and caries
- • Allergies- Some (although it is less than 3%) have an allergic reaction to Co/Cr alloy used in denture
construction. Other alloys or designs should be a consideration in these cases. Stainless steel, Gold etc.
- • Unnecessary- If there is no movement of surrounding teeth predicted, no increase in masticatory efficiency
can be achieved, or no improvement of aesthetics then a partial denture is deemed unnecessary and will not
provide any benefit to the patient
- • If the denture has a design error within the occlusal area this can cause problems creating tooth mobility or
possible muscle dysfunction damaging the TMJ. More still trauma induced by components of the metal denture
can cause abrasion to the tissue, inflaming the soft tissue and possible the underlying tissue or in the worst case
denture induced hyperplasia, where excess folds of connective tissue form as a protection against continuous
rubbing.
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