If I'm putting this in the wrong place, please move it and sorry.

Ok, I have a question. Oliver's teeth got really long so I went online and found this site that tells you how to cut them...wrap them up like a burrito in a hand towel and use a small wooden stick (I used one of my art sticks) to pry open the mouth then cut....I can never get them straight and the last time, I cut his little tongue a bit (God, I felt like Jack the Ripper)...Does anyone know a better way to keep the teeth cut and even. Any info would be well appreciated.