Under the Mental Capacity Act 2005 (England and Wales), which of the following is a core principle that dentists must apply when treating a patient who may lack capacity?
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A
Decisions should always be made by the patient's next of kin
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B
A patient must be assumed to have capacity unless it is established that they lack it, and treatment must be in their best interests
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C
Patients who have previously had capacity issues can never consent to dental treatment
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D
Emergency treatment must always be deferred until the patient regains capacity