Somatosensory abnormalities in Chinese patients with painful temporomandibular disorders

Table 3 Loss and gain distribution in the painful region in temporomandibular disorder (TMD) patients and the healthy reference group

Sensory abnormality coding system [7]: hypoesthesia to thermal stimuli (loss of detection in the cold or warm detection threshold) was coded as L1, and hypoesthesia to mechanical stimuli (loss of detection in mechanical or vibration detection threshold) as L2. Signs of hyperalgesia to thermal stimuli (gain-of-function in heat or cold pain threshold) were coded as G1, and hyperalgesia to mechanical stimuli (gain-of-function in mechanical pain threshold or sensitivity, dynamic mechanical allodynia, or pressure pain threshold) as G2. When both thermal and mechanical abnormalities were present, L3 or G3 were defined. Normal values were coded as zero

ISSN: 1129-2377