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DETAILED NOTE / 03.03

Dietary counselling

BDS corePrevention & oral health

Frequency of free-sugar exposure matters for caries. Acid exposure and timing matter for erosion; give achievable advice based on a diet history.

On this page
01

Understand

Free-sugar frequency drives repeated acid production by cariogenic biofilm, while intrinsic and dietary acids also affect erosion. Quantity alone misses timing and sipping habits.

02

Assess

Use a realistic diet diary or recall to identify between-meal exposures, bedtime drinks and acidic habits. Explore routines and constraints without blame.

03

Apply

Agree one or two feasible substitutions or timing changes and revisit them. For erosion, consider reflux or vomiting and advise against brushing immediately after acid exposure.

04 / A CLOSER LOOK

Key distinctions

For caries, repeated sugar exposures drive biofilm acid cycles. For erosion, non-bacterial acid source, contact pattern, saliva and protective behaviours matter. A diet history can uncover energy drinks, citrus, medicines or gastric reflux that a generic “sweet foods” question misses. Frame advice as practical substitutions and timing changes, then check whether the chosen change happened.

05 / IN PRACTICE

Think through a case

A patient sips sweetened coffee through a work shift. Their total sugar amount may sound modest, but repeated exposures leave little time for pH recovery.

06 / EXAM PITFALL

The distinction to remember

Do not give generic “reduce sugar” advice without identifying frequency and a realistic alternative within the patient's routine.

07

Test your recall

Why ask when a patient drinks acidic beverages?

Show answer
MODEL ANSWER

Frequent or prolonged acid contact increases erosive challenge.

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