Ultrastructure of a presumptive Golgi-Mazzoni receptor in the periodontal ligament in mice.

nerve endings have been described in extracted human teeth (Griffin and Harris, Australian DJ, 19:255-59, 1974; Harris and Griffin, Australian DJ, 19:174-81, 326-37, 1974), and in mouse molars with intact surrounding periodontium (Corpron et al., J Dent Res, 53-7S, 1974; Avery et al., J Dent Res, 54:92, 1975; Corpron et al. JDentRes, 57:1B224, 1977). l)uring previous investigations of periodontal nerves in mice, we observed occasional unique receptors not previously reported. It is the purpose of this investigation to localize and describe such endings using the mouse as the species in which the relation of the tooth and periodontium are preserved intact. Blocks of tissue containing mandibular first molars and surrounding periodontium