Dental Students' Knowledge, Confidence, Ability, and Self-Reported Difficulties in Periodontal Education: A Mixed Method Pilot Study.

Evidence on periodontal education areas in which students have difficulties and their factors are limited. In this study, third- and fourth-year dental students' knowledge was assessed as well as their confidence and ability in five periodontal educational areas using a mixed-method approach. A survey was used to collect data related to history-taking, medical examination, diagnosis, treatment planning, and follow-up.

The 35% carbon dioxide test in stress and panic research: overview of effects and integration of findings.

The carbon dioxide test--a vital capacity breath of air containing 35% carbon dioxide (CO(2))--provokes panic attacks in many individuals with panic disorder (PD). It has thus been extensively used as an experimental model of panic and less frequently as a clinical method of provoking symptoms for interoceptive exposure treatment. Recently, stress researchers have suggested another use for the CO(2) test: that of an acute physiological stressor indexing the human stress response.