Personalized Coolest Dentist Ever Toddler Long Sleeve T-Shirt. Coolest dentist ever! Who's the best dentist? This one! Two thumbs up for this dentist. Great gift for your favorite dentist! A classic for Fall, Winter and Spring, these long sleeve toddler t-shirts are sure to be a staple in your child's wardrobe. Whether layered or alone, this t-shirt is soft yet durable enough to stand up to your toddler's playtime demands.