Many kids have a tendency to chew on pencils, and it is not usually a problem (sometimes just gross), but when the chewing becomes extreme, it can become a problem. In cases that become problematic, you can try to have the student replace the chewing behavior by giving them something to chew on that is
The #1 Way to Help Kids Stop Chewing on Toys, Shirts, Pencils, etc. –
Oral Sensitivities: Why My Child Chews on Pencils and Sucks on Clothing - Integrated Learning Strategies
Tran-Quill® Writing Kit (Vibratory)
Therapy Shoppe, Special Needs Educational Toys
Munchables Sensory Chew Necklaces Adult Chewelry, Kids Chewable Jewelry
Stuck in The Mud Letter Sizes - Therapy Fun Zone
Holiday Sentence Memory Writing - Therapy Fun Zone
When Kids Chew on Pencils - Therapy Fun Zone
10 Tips for Kids Who Need to Chew - An Oral Sensory Diet - ARK Therapeutic
Made in the USA, ARK's Krypto-Bite® Pencil Toppers are a safe and convenient chewing solution to help kids better focus during homework & writing
ARK's Krypto-Bite® Chewable Pencil Topper
Chew Necklaces for Sensory Adult and Kids, Silicone Feather Chewy Necklace for Autism, ADHD, Chewing, Oral Motor Therapy Tools for Mild Chewers : Health & Household
Chew Bracelets for Kids, Sensory Bracelet for Girls Boys Mouth Fidget Stretchy Coil for Anxiety Autism ADHD, Sensory Chew Toys for Autistic Children : Health & Household
Therapy Shoppe, Special Needs Educational Toys
Button Snake - Therapy Fun Zone