The diameters and internodal lengths of the myelinated fibres in human inferior alveolar nerve

Rood, J.P.

doi:10.1016/0300-5712(78)90167-7

Cited by 11 publications

(1 citation statement)

References 9 publications

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“…Although the bony components of the mandible have been studied extensively due to their ability to persist far longer than soft tissues, there is also a body of literature on the IAN itself. This prior work shows that the IAN provides somatic sensory innervation to the lower gums and teeth as it begins anteriorly at the mental foramen, passes underneath the posterior tooth row, and exits towards the brain at the mandibular foramen (e.g., Anderson et al, 1970; Avery & Cox, 1977; Brashear, 1936; Byers & Dong, 1983; Edin & Trulsson, 1992; Falin, 1958; Lewinsky & Steward, 1937; Luschei & Goldberg, 2011; Rood, 1978; Seto, 1972). Both pressure and pain signals are sent from the teeth/gums to the brain via the IAN to assess food material properties and to adjust the chewing cycle according to those properties (Booth et al, 2013; Crompton, 1995; Hiiemäe, 1974; Luschei & Goldberg, 2011; Plaffman, 1939; Rees, 1954; Thexton et al, 1980).…”

Section: Introductionmentioning

confidence: 99%

The inferior alveolar nerve and its relationship to the mandibular canal

Yoakum¹,

Terhune

2023

The Anatomical Record

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Previous work on the mandibular canal, mental foramen, and mandibular foramen has focused on humans and some other non‐primate mammals (with small sample sizes), but little work has investigated the mandibular canal and inferior alveolar nerve (IAN) across primates. However, it is important to understand the relationship between the IAN and mandibular canal due to the IAN's close relationship to the teeth and mastication, and thus dietary adaptations. While it is assumed that most bony canals within the skull grow around and form to pre‐existing nervous structures, this relationship has never been validated for the IAN and mandibular canal. MicroCT scans of 273 individuals (131 females, 134 males, and 8 unknown sex) from 68 primate species and three mammalian outgroups, and diceCT scans of 66 individuals (35 females, 23 males, and 8 unknown sex) from 33 primate species and the same mammalian outgroups were used to create 3D models of the IAN and mandibular canal from which cross‐sectional areas were taken at various points on the structures. Using qualitative descriptions, phylogenetic generalized least squares analysis, and phylogenetic ANOVAs, we were able to establish three main conclusions: (1) the mandibular canal is most often not a defined canal within the mandible of primates, (2) when the canal can be identified, the IAN does not comprise most of the space within, and (3) there are significant relationships between the IAN and the corresponding canals, with most showing isometry and the mental foramen/nerve showing negative allometry.

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