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Quantitative sensory tests before and 1½ years after orthognathic surgery: a cross‐sectional study
Author(s) -
BAADHANSEN L.,
ARIMA T.,
ARENDTNIELSEN L.,
NEUMANNJENSEN B.,
SVENSSON P.
Publication year - 2010
Publication title -
journal of oral rehabilitation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.991
H-Index - 93
eISSN - 1365-2842
pISSN - 0305-182X
DOI - 10.1111/j.1365-2842.2010.02059.x
Subject(s) - quantitative sensory testing , somatosensory system , medicine , analysis of variance , orthognathic surgery , cross sectional study , sensory threshold , audiology , anesthesia , sensory system , orthodontics , psychology , pathology , psychiatry , cognitive psychology , cognitive science
Summary Quality control is very important in relation to invasive and lengthy treatments, such as integrated orthodontic and surgical correction of dentofacial deformities. The aim of this cross‐sectional study was to compare self‐reported somatosensory disturbances and quantitative sensory testing (QST) findings between two groups of patients and a healthy control group ( n = 24); one group ( n = 21) scheduled for bimaxillary orthognathic surgery (BOS) (pre‐op) and one group ( n = 24) examined 1½ years after BOS (post‐op). Self‐reported data on pain and somatosensory disturbances were collected, and QST was performed at six trigeminal and one extratrigeminal site. Sensitivity to brush stroke, tactile stimuli, pinprick, two‐point‐discrimination threshold (2P‐DT), pinch pain threshold (PiPT) and pressure pain threshold (PPT) was evaluated. Results were analysed with anova s, Spearman’s Correlation, and chi square tests. Eight per cent of post‐op patients reported intra‐oral, 46% extra‐oral, and 46% no somatosensory disturbances. Sensitivity to brush stroke, pinprick and 2P‐DT was significantly increased at all examination sites in the post‐op patients compared with healthy controls ( P < 0·002). Tactile thresholds and PPT did not differ between groups ( P > 0·071). Pinch pain threshold were decreased in pre‐op patients compared with controls ( P < 0·040). Self‐reported somatosensory disturbances were not correlated with QST findings. In conclusion; 1½ years after BOS, a large proportion of patients reported somatosensory disturbances and was hypersensitive to mechanical stimuli when compared with pre‐op patients and healthy controls. Pre‐op patients showed minor somatosensory changes. In addition to patients serving as their own control in prospective studies, a healthy control group and extratrigeminal control sites should be included in future studies.