TY - JOUR
T1 - The Development of a Diagnostic Instrument for the Measurement of Mechanical Allodynia
AU - Khan, Asma A.
AU - McCreary, Bryce
AU - Owatz, Christopher B.
AU - Schindler, William G.
AU - Schwartz, Scott A.
AU - Keiser, Karl
AU - Hargreaves, Kenneth M.
N1 - Funding Information:
Funded in part by the AAE Foundation and NIDCR K23 DE14864 and by grant numbers PO1 DA16719 and RO1 NS45186. The authors wish to thank Dr. Lorena Baccaglini for her help in all aspects of the study. We also thank Drs. John Rugh and Xiaoling Sun for their help and support
PY - 2007/6
Y1 - 2007/6
N2 - Mechanical allodynia, defined as a reduction in mechanical pain threshold, is an essential diagnostic feature of inflammation of the periodontal ligament. Traditional methods for measuring mechanical allodynia in a tooth are not quantitative. This study evaluated the reliability of a new bite force transducer to measure mechanical pain thresholds, which might have application as a quantitative diagnostic aid for measuring mechanical allodynia in patients with apical periodontitis. To determine inter-observer reliability, subjects (n = 40) were given standardized instructions before generating maximal bite force on maxillary first molars; readings were then recorded by three examiners for a total of ten readings per examiner. To determine the test-retest reliability, the initial examiner then retested at two different sessions. The intraclass correlation coefficient was fair to substantial for inter-observer reliability (0.3-0.64) and substantial for intra-observer reliability (0.63-0.68). Thus, the force transducer used in our study is a reliable method to measure mechanical pain thresholds in endodontic patients.
AB - Mechanical allodynia, defined as a reduction in mechanical pain threshold, is an essential diagnostic feature of inflammation of the periodontal ligament. Traditional methods for measuring mechanical allodynia in a tooth are not quantitative. This study evaluated the reliability of a new bite force transducer to measure mechanical pain thresholds, which might have application as a quantitative diagnostic aid for measuring mechanical allodynia in patients with apical periodontitis. To determine inter-observer reliability, subjects (n = 40) were given standardized instructions before generating maximal bite force on maxillary first molars; readings were then recorded by three examiners for a total of ten readings per examiner. To determine the test-retest reliability, the initial examiner then retested at two different sessions. The intraclass correlation coefficient was fair to substantial for inter-observer reliability (0.3-0.64) and substantial for intra-observer reliability (0.63-0.68). Thus, the force transducer used in our study is a reliable method to measure mechanical pain thresholds in endodontic patients.
KW - Bite force transducer
KW - inflammation
KW - mechanical allodynia
KW - pain threshold
KW - periodontal ligament
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U2 - 10.1016/j.joen.2006.06.003
DO - 10.1016/j.joen.2006.06.003
M3 - Article
C2 - 17509402
AN - SCOPUS:34248159350
VL - 33
SP - 663
EP - 666
JO - Journal of Endodontics
JF - Journal of Endodontics
SN - 0099-2399
IS - 6
ER -