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International Journal of Implant Dentistry

Table 1 Highet grading

From: Subjective and qualitative assessment of neural disturbance after inferior alveolar nerve transposition for dental implant placement

Stage 0

Complete sensory loss

Stage 1

Advent of deep pain

Stage 2

Some degree of tactile recovery and pain on superficial skin

Stage 2+

Emergence of hyperalgesia and complete tactile recovery and pain

Stage 3

Recovery of tactile sensation without pain; hyperalgesia disappearance

Stage 3+

Restoration of position sense, to some extent, with 2-point discrimination (2PD: 6–15 mm)

Stage 4

Full sensory recovery (2PD: 2–6 mm)

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