All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .
Comparison of postoperative pain: tonsillectomy by blunt dissection or electrocautery dissection.
PURPOSE To compare post-operative pain in children undergoing tonsillectomy by blunt dissection or electrocautery .  METHOD Thirty-six children between the ages of 5 and 15 years were recruited for the study . Tonsillectomy was done in a st and ardized fashion with uniform anaesthetic practice s. Each child kept a pain diary for 10 days , recording pain twice daily on a Visual Analog Scale and Faces Pain Scale . Doses of analgesics were recorded . RESULTS There were no statistically significant differences in the pain scores for the groups , although there was a trend toward more pain in the blunt dissection group . There were more complications in this group , and these children used significantly more doses of acetaminophen . Sources of bias are discussed . CONCLUSION These results suggest a trend toward greater postoperative pain in children who have tonsillectomies by blunt dissection techniques
All 4 faces pain scales were found to be adequately supported by psychometric data .
When given a choice between faces scales , children preferred the WBFPRS .
Confounding of pain intensity with affect caused by use of smiling and crying anchor faces is a disadvantage of the WBFPRS .
: For clinical use , we found no grounds to switch from 1 faces scale to another when 1 of the scales is in use .
CONTEXT : Numerous faces scales have been developed for the measurement of  pain intensity in children .
It remains unclear whether any one of the faces scales is better for a particular purpose with regard to validity , reliability , feasibility , and preference .
OBJECTIVES : To summarize and systematic ally review faces pain scales most commonly used to obtain self-report of pain intensity in children for evaluation of reliability and validity and to compare the scales for preference and utility .