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Questions and Answers

Define extrinsic stain

Stains located in the outer surface of the tooth structure and are caused by topical or extrinsic agents. These stains can be removed

Define intrinsic stains

These stains are found within the tooth. They are caused by internal or intrinsic agents. These stains cannot be removed

How might a patient be more at risk of staining? (4)

Manual dexterity, poor OHI, socio economic group, age of the patient (enamel thins as we age and increase dentin visibility)

List four agents that causes extrinsic staining? (4)

Smoking, chlohexidine, coffee/tea, iron tablets Signup and view all the answers

List for ages that cause intrinsic staining?

Fluoride, tooth died non vital pulp, amalgam ions leaked into tooth structure, tetracycline Signup and view all the answers

Define exogenous staining

Originates from a source outside of the tooth but has become incorporated into the tooth structure Signup and view all the answers

Define endogenous staining

Originates from within the tooth’s structure Signup and view all the answers

Give three reasons why we should remove stains?

Aesthetics, rough therefore plaque retentive, colours calculus Signup and view all the answers

What causes pink staining colour?

Haemorrhage in pulp chamber Signup and view all the answers

What causes green staining?

Chromogenic bacteria and fungi Signup and view all the answers

What causes yellow staining?

Dental plaque Signup and view all the answers

What causes brown staining?

Smoking, pipe smoking Signup and view all the answers

What causes grey (metallic) extrinsic staining?

Metal dust/iron tablets Signup and view all the answers

What causes grey (intrinsic staining)?

Pulp death Signup and view all the answers

What causes black/brown staining?

Betel nut Signup and view all the answers

List methods used for intrinsic stain removal? (4)

Veneers, composite restorations, micro abrasion, bleaching Signup and view all the answers

List the methods used for extrinsic stain remove? (4)

Polishing, airflow, bleaching, oral hygiene instruction Signup and view all the answers

List five possible complications you may encounter whilst removing extrinsic stain? (5)

Damage to enamel/cementum, tooth sensitivity, soft tissue trauma, incomplete stain removal in pits/fissures which are difficult to remove, aerosol generation Signup and view all the answers

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