Reference code: | PT/FB/BL-2010-186.15 |
Location: | Arquivo PCA - Pasta 10/2010
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Title:
| Placebo analgesia in the dental clinic: positive information about treatment reduces pain in dental patients
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Publication year: | 2013
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URL:
| http://www.psychosomatic.org/AnMeeting/PDF/2013abstractBooklet.pdf
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Abstract/Results: | ABSTRACT:
BACKGROUND:
Information about the effectiveness of treatment has been found to reduce pain, termed placebo analgesia. It was investigated whether information that suggested that minimal pain would be experienced during filling therapy, could reduce the pain associated with that procedure. All patients received the same amount of
anaesthesia and similar procedures during filling therapy. It was predicted that extended information should reduce pain, and that the reduction in pain should be associated with a reduction in stress.
METHODS:
44 patients (24 females, 17-68 yrs) going through composite restoration therapy with anaesthesia in a molar or premolar, participated. The design was a 2 Information (Extended, Standard) by 4 Test mixed design. Patients were randomized to two groups: The Standard Info group (N=22) received information that was short but informative about the pain they might experience under and after treatment. Words like pain, sensitivity and unpleasant were used. The Extended Info group received information that and focused on the
positive effects. The Fear of Pain Questionnaire III was administrated. Subjective pain intensity and pain unpleasantness, and stress were recorded by numerical rating scales before, during, immediately after,
and 15 minutes after treatment. The patients were all given local anaesthesia in the form of xylocain dental adrenalin 2% + 12.5 microg/ml adrenalin.
RESULTS:
Pain was 2.6 points lower in the Extended Info group compared to the Standard Info group during treatment (p = .033). There were no differences in pain levels in the other Tests. Extended Info reduced stress slightly. Low tension before treatment correlated with lower pain during treatment (p = .004). High fear of pain correlated with high stress prior to treatment (p = .002).
CONCLUSIONS:
Providing positive information about the anaesthetic and the dental procedure reduced pain compared to standard information. Subjects high in fear of pain displayed the highest stress prior to the dental procedure, and high stress prior to the dental procedure correlated with high pain during the procedure. The information partly reduced pain by reducing stress prior to the dental procedure. The magnitude of the analgesic effect of the information was about 2.6 points on an 11-point numerical rating scale, clinically significant. Taken together the study shows that providing information that underscores the effectiveness of the painkiller, informs the patient that the damage is small, and that informs the patient that he/she has control of the situation, reduces pain induced by the dental procedure.
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Accessibility: | Document does not exist in file
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Language:
| eng
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Author:
| Hunsbeth, P.
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Secondary author(s):
| Flaten, M.
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Document type:
| Abstract book
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Number of reproductions:
| 1
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Reference:
| Hunsbeth, P., & Flaten, M. A. (2013). Placebo analgesia in the dental clinic: positive information about treatment reduces pain in dental patients. In Meeting Abstracts 71st American Psychosomatic Society Annual Scientific Meeting, Miami, FL (A-154).
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Indexed document: | No
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Keywords: | Pain / Placebo analgesia / Information
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Placebo analgesia in the dental clinic: positive information about treatment reduces pain in dental patients |