Restorative & Materials · single question
Which toothpaste component is most associated with irritation of the oral mucosa (and aphthous-type reactions)?
Show answer and explanation
Correct answer: A. Sodium lauryl sulfate (SLS)
- A. Correct. Sodium lauryl sulfate, a foaming detergent, can irritate the oral mucosa and is linked to increased aphthous ulcer recurrence in susceptible people.
- B. Stannous fluoride may cause staining but is not the classic mucosal irritant in this context.
- C. Sorbitol is a humectant/sweetener and is non-irritating.
- D. Hydrated silica is a mild abrasive, not a mucosal irritant.
Practice Restorative & Materials questions Restorative & Materials study notes