title: [Clinical evaluation of electronic dental analgesia during ultrasonic scaling].
abstract: OBJECTIVE
  To evaluate the effect of electronic dental analgesia (EDA) device--Team Up Duo during ultrasonic scaling.
  
  
  METHODS
  The clinical trial was conducted as a randomized double-blind split-mouth design. Eighty-one patients requiring ultrasonic scaling were selected as subjects. Patients received treatment using the EDA device either in an active or an inactive state in paired quadrants. The patients scored their pain/discomfort levels with visual analog scale (VAS) after each procedure and filled a questionnaire.
  
  
  RESULTS
  In questionnaire, 79.0% patients felt EDA could relieve pain/discomfort during ultrasonic scaling. But the double-blind test showed that Team Up Duo was effective in 46.9% patients overall. The effective rate was 55.1% and 34.4% in groups with or without attachment loss, respectively. In CP group, the success rate of EDA was not statistically significantly different between the groups according to sex, age or site.
  
  
  CONCLUSIONS
  When using Team Up Duo during ultrasonic scaling, most patients subjectively believed that it was effective for controlling pain. In fact, this EDA device was effective in partial patients.
authors.affiliation: Department of Periodontology, Peking Univerisity School and Hospital of Stomatology, Beijing 100081, China. han_jie17@sina.com
authors.forename: Jie
authors.initials: J
authors.lastname: Han
authors.forename: Yue-bang
authors.initials: YB
authors.lastname: An
authors.forename: Huan-xin
authors.initials: HX
authors.lastname: Meng
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D012534:Dental Scaling / Q000379:methods*; D004311:Double-Blind Method; D005260:Female; D006801:Humans; D007431:Intraoperative Complications / Q000517:prevention & control; D008297:Male; D008875:Middle Aged; D010146:Pain / Q000517:prevention & control*; D011795:Surveys and Questionnaires; D004561:Transcutaneous Electric Nerve Stimulation / Q000295:instrumentation*; D014464:Ultrasonic Therapy / Q000009:adverse effects*; D055815:Young Adult