Therapeutic apparatus, namely, an oral sensory chewing apparatuses in the shape of jewelry providing oral stimulation and bio sensory feedback for physical therapy, rehabilitative and pain management purposes; Therapeutic apparatus, namely, an oral sensory chewing apparatuses in the shape of jewelry providing oral stimulation and low-frequency electric pulses for improving mental focus; Therapeutic apparatus in the nature of a chewable teething ring for adults in the shape of jewelry for relaxation and stress relief purposes; Oral therapeutic chewable silicone sensory stimulation jewelry for children with neurodevelopmental disorders, autism, and attention deficit disorder; Teethers for infants and toddlers; Oral therapy apparatuses for infants and toddlers, namely, teething, mouthing, and chewing tools in the nature of mouth guards and dental instruments for exercising mouth muscles, for use in the development of feeding skills, and for oral motor and oral sensory development; Teething rings; Teething rings incorporating baby rattles; Therapeutic apparatus for relieving pain from teething in the form of teething rings and amber jewelry