When adjusting to new dentures you may notice minor differences in your speech. Lisping or whistling is not unusual. It may take a week or two to adjust, but natural speech will return with practice. Speaking in front of a mirror and reading aloud are excellent exercises to speed up progress. Swallowing before speaking will help to secure the denture in place. Staying hydrated is important as you may experience a dry mouth, which can inhibit proper suction and your denture may drop when speaking. If the problem is chronic, your denturist may be able to make other recommendations.