A patient with a new complete denture cannot properly pronounce fricative ('f'/'v', 's') sounds; the anterior teeth appear positioned too far forward. What should you do?

Correct answer: A. Reposition the anterior teeth more posteriorly

• A. Correct. Fricative/sibilant sounds depend on anterior tooth position; if the teeth are set too far labially, repositioning them lingually (back) corrects the speech problem.
• B. Increasing OVD addresses 'clicking' from too-tall teeth, not anterior-posterior fricative errors.
• C. Adding teeth does not fix the malposition causing the speech error.
• D. Altering the posterior palatal seal affects retention, not anterior fricative sounds.