Baby Powder & Teeth: What You Need to Know

Baby powder (talc or cornstarch) is for external use only. Ingestion is hazardous but does not directly cause tooth decay.

Ingestion Risks

• Talc: Aspiration → talc pneumonitis, respiratory failure (infants). Chronic inhalation → talcosis. Possible asbestos contamination (historical).
• Cornstarch: Less toxic but can cause respiratory irritation if inhaled; fermentation by oral bacteria → acid (minor caries contribution if frequent).
• Choking hazard: Fine powder can obstruct airway.

Tooth Decay (Caries) Mechanism

Caries requires: (1) Susceptible tooth, (2) Cariogenic bacteria (S. mutans), (3) Fermentable carbohydrate (sugar), (4) Time. Baby powder lacks sugar. Decay is caused by bacterial acid from dietary sugars, not powder.

Safe Use

• Apply sparingly to diaper area (hands away from face).
• Cornstarch-based preferred over talc (AAP).
• Keep container out of child's reach.
• Do not use on broken skin.

Oral Health Basics

• Brush 2x/day with fluoride toothpaste (rice grain <3 yrs, pea ≥3 yrs).
• Floss when teeth touch.
• First dental visit by age 1 or first tooth.
• Limit sugary snacks/drinks; no bottle at bedtime.