This page presents clinical case studies related to bad breath observed in a dental clinic setting. Each case highlights different causes of oral malodour, diagnostic findings, and the assessment approach used to guide routine recommendations.

These examples are provided for educational purposes and demonstrate how factors such as tongue coating, saliva flow, oral hygiene routines, and other oral conditions can influence breath quality.

Diagnostic tools used in a Sydney oral health clinic for bad breath assessment
Important note
Individual circumstances vary. These case summaries describe clinical observations and assessment processes only and do not represent a promise of outcomes.

How breath is assessed in our clinic

Every clinical case documented here includes breath analysis using the OralChroma™ system. OralChroma allows us to objectively measure specific volatile sulphur compounds commonly associated with oral odour, rather than relying on subjective assessment alone.

Breath measurements are considered alongside clinical observation and a review of daily oral care routines and habits. This combination helps guide personalised recommendations and provides a consistent reference point when reviewing changes over time.


Case Study 1 — Elevated readings despite good general hygiene

A professional adult attended for assessment after noticing occasional social discomfort related to breath, despite regular brushing and routine dental care. Visual examination suggested generally good oral hygiene.

OralChroma analysis showed elevated readings across multiple sulphur compounds. A routine and lifestyle review identified factors affecting the oral environment, including product selection, brushing technique, and daily rhythm. A consistent multi-step oral care routine was introduced and reviewed over time using repeat measurements.

Case Study 2 — Long-term concerns supported with measurement

A young adult presented with long-standing breath concerns. Initial OralChroma readings indicated elevated sulphur compound levels, alongside visible tongue surface build-up.

Breath analysis provided a baseline to guide recommendations and support routine planning. Follow-up assessments used the same measurement process to review trends and help adjust routine consistency and technique over time.

Case Study 3 — When retail products are not enough

An adult had tried a range of retail oral care products with only short-lived improvement. Assessment focused on identifying contributing oral factors using OralChroma measurement and clinical observation.

Recommendations centred on clarifying daily routine steps, improving tongue hygiene, and selecting products suited for regular use. Repeat breath measurements were used to review direction of change and guide incremental adjustments.


Common patterns observed in clinic

  • Tongue surface build-up and technique gaps often correlate with higher sulphur compound readings.
  • Routine consistency and product suitability matter more than stronger flavours or harsher formulations.
  • Multiple oral factors usually contribute, rather than a single isolated cause.

Clinic support

BreezeCare Oral Health operates as a clinic-led practice. For those using the KForce system who are able to visit our Sydney clinic, a complimentary breath assessment may be available to help review routine use and provide personalised guidance.

Subscribe to our newsletter

Subscribe to receive discount offers, store updates and more.

100% free, Unsubscribe any time!