Which of the following is not listed as a sign of ageing in the described context?

• A. Thinner and less elastic oral mucosa
• B. Teeth gradually darkening with colour
• C. Skin has less underlying fat and elasticity
• D. Increased saliva production

Answer: (D)

The question tests your ability to recognise typical ageing changes in the oral and facial tissues described. As people age, the oral mucosa tends to become thinner and less elastic, and teeth can darken with age due to wear, staining, and dentine exposure. The skin also shows aging changes, with reduced underlying fat and elasticity. Increased saliva production, however, is not a usual sign of ageing in this context; in fact, older adults more often experience reduced salivary flow (xerostomia) due to gland changes or medications. Therefore, the option describing increased saliva production does not fit the described ageing signs.