Inferior dental plexus
The inferior dental plexus is a nerve plexus formed by sensory branches of the inferior alveolar nerve. The plexus issues dental branches and gingival branches; the small dental branches provide sensory innervation to the lower/mandibular teeth.
Note that the lower premolar, canine and incisor teeth as well as their associated gingiva are innervated by the incisive branch of the inferior alveolar nerve.