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Objectives: Previous research has demonstrated the efficacy of using local compression to reduce postoperative pain after third molar surgery. It has been theorized that compression reduces pain intensity through vasoconstriction. The current research tests the veracity of this vasoconstriction hypothesis by testing the impact of local epinephrine (a local vasoconstrictor) versus a control on patients' pain ratings over 7 days following surgery.Method and Materials: Fifty patients scheduled for mandibular third molar surgery were randomly assigned to receive one cartridge of Ultracaine DS Forte (the treatment group) or one cartridge of Ultracaine DS (the control group) after surgical removal of the third molar. Participants used the visual analog scale (VAS) to provide daily ratings of pain intensity for 7 days following surgery. In addition, on day 7, the perceived effectiveness of the pain treatment was measured with the global perceived effect (GPE) scale. A quality- of-life questionnaire was also completed.Results: A repeated-measures ANOVA indicated that the treatment group perceived significantly less pain than the control group on days 2 to 7 following surgery. In addition, 77.8% of the treatment group perceived their pain treatment to be successful, while only 69.6% of the control group reported that their pain was reduced successfully by day 7.Conclusion: The results of this study provide an initial proof of concept that epinephrine may have an analgesic effect on the period following third molar surgery. Further research with larger sample sizes is needed to strengthen evidence for the clinical utility of offering localized epinephrine to patients following third molar surgery.

A controversial feature of modern parenting is "child-centrism," the tendency for parents to prioritize their children's well-being above their own. It has been suggested that child-centric parenting in its various forms may undermine parental well-being. Contrary to popular belief, more child-centric parents reported deriving more happiness and meaning from parenthood (Study 1). Study 2 employed the day reconstruction method (Kahneman, Krueger, Schkade, Schwarz, & Stone, 2004) to capture parents' actual experiences while taking care of their children. Consistent with Study 1, greater child-centrism was associated with the experience of greater positive affect, less negative affect, and greater meaning in life when engaged in child care activities. This link between child-centrism and well-being stands in contrast to recent arguments about the pitfalls of overinvestment in children, while dovetailing with a growing body of evidence that personal well-being is associated with investing in others rather than oneself. © The Author(s) 2013.