Write down your notes
Write down your notes with either bullet points or full sentences as a script. This can help you to remember what you want to say during your defense. When you are practicing, you won't have to come up with new things to say every time and won't forget what you planned to talk about.
Example 1: slide with notes - exact words to say (C. Mailings 2017) Example 2: slide with notes - bullet points (I. D. Posen 2016)