Document Detail

Quantitative sensory tests before and 1(1/2) years after orthognathic surgery: a cross-sectional study.
MedLine Citation:
PMID:  20113390     Owner:  NLM     Status:  MEDLINE    
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 1(1/2) 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 anovas, 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; 1(1/2) 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.
L Baad-Hansen; T Arima; L Arendt-Nielsen; B Neumann-Jensen; P Svensson
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-01-25
Journal Detail:
Title:  Journal of oral rehabilitation     Volume:  37     ISSN:  1365-2842     ISO Abbreviation:  J Oral Rehabil     Publication Date:  2010 May 
Date Detail:
Created Date:  2010-06-07     Completed Date:  2010-09-07     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0433604     Medline TA:  J Oral Rehabil     Country:  England    
Other Details:
Languages:  eng     Pagination:  313-21     Citation Subset:  D; IM    
Department of Clinical Oral Physiology, School of Dentistry, Aarhus University, Aarhus, Denmark.
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MeSH Terms
Analysis of Variance
Case-Control Studies
Chi-Square Distribution
Cross-Sectional Studies
Discrimination (Psychology)
Facial Pain / diagnosis,  etiology*
Fingers / innervation
Headache / diagnosis,  etiology*
Masticatory Muscles / physiopathology
Neurologic Examination
Orthognathic Surgical Procedures / adverse effects*
Pain Measurement
Physical Stimulation / methods
Postoperative Period
Preoperative Period
Sensory Thresholds
Somatosensory Disorders / diagnosis*,  etiology*
Statistics, Nonparametric
Trigeminal Nerve / physiopathology*

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