1.   He had a speech defect which made it quite difficult to understand him.

2.   Against her were caseworkers who considered her accent a speech defect.

3.   In some quarters, giving a character a speech defect is regarded as a relic from the insensitive, incorrect and otherwise bad old days.

4.   Now it may become a treatment for a speech defect.

5.   Unfortunately, however, the procedure could lead to nasal regurgitation caused by food going up the back of the nose, and occasionally a speech defect.

6.   There are rarely any speech defects.