A Bearded Dragons teeth are primarily for feeding. The teeth at the front are used to grip and hold insects and plantation such as vegetables if needed.
These front teeth actually have the ability to fall out and re-grow so if you notice one missing it’s not always as an instant cause for concern.
And from the Journal of Herpetological Medicine and SurgeryChameleons and agamid lizards, such as bearded dragons and water dragons, possess acrodont dentition.
Acrodont teeth are easily lost and are not replaced. Instead as teeth wear, the biting surface eventually becomes the bone itself.
I find further articles supporting either POV; the former being articles about BDs as pets--the latter being more scholarly via Google ScholarBearded dragons belong to the family Agamidae. Agamids are the fourth largest family of lizards, with over 300 species spread throughout Africa, Asia, and Australia (Rogner, 1997). Bearded dragons possess round pupils, fleshy tongues, and acrodont dentition and are not capable of caudal autotomy (Raftery, 2004). Acrodont teeth are ankylosed to bone and are not replaced if damaged (Fig. 1). The natural habitat of bearded dragons consists of xeric woodlands. In the wild, bearded dragons consume arthropods, worms, small rodents, lizards, greens, fruits, and flowers.
Figure 1.Acrodont dentition is characterized by fusion of the teeth to the crests of the maxillae and mandibles.