title: [Application of computer-controlled local anesthetic delivery system in children].
abstract: OBJECTIVE
  To compare the reaction of children receiving computer-controlled local anesthetic delivery system (CCLADS) and a conventional syringe, and evaluate the efficacy of anesthesia and the reaction after treatment.
  
  
  METHODS
  30 children aged 4 to 9 years old, whose bilateral primary molars in the same jaw present similar lesions with similar treatment were included in the study. These bilateral primary molars were treated under local anesthesia in 2 separate visits with random use of either the CCLADS or conventional syringe. For the first visit, the first group received CCLADS anesthesia, in which buccal infiltration anesthesia was performed for maxillary primary molars, and periodontal ligament anesthesia was performed for mandibular primary molars. The second group received conventional anesthesia, in which buccal infiltration anesthesia was performed for both maxillary and mandibular primary molars. For the second visit, two groups used alternative anesthestic method. Pain behavior was observed and scored by modified-children's hospital of eastern ontario pain scale (MCHEOPS). Pain perception was rated using facial image scale (FIS).
  
  
  RESULTS
  The MCHEOPS and FIS scores in 1 min injection of children with CCLADS were lower than children with conventional syringe (P<0.05). No difference was found in the FIS score in treatment between two injectors (P>0.05).
  
  
  CONCLUSIONS
  In local anesthesia, CCLADS can reduce the injection pain caused by conventional syringe to a certain extent.
authors.affiliation: Arrail Dental Clinic, Beijing Shengbin Kemao Co. Ltd, Beijing 100004, China.
authors.forename: Xin
authors.initials: X
authors.lastname: Zhao
authors.forename: Hongling
authors.initials: H
authors.lastname: Liu
authors.forename: Man
authors.initials: M
authors.lastname: Qin
mesh_terms: D000766:Anesthesia, Dental; D000772:Anesthesia, Local; D000779:Anesthetics, Local; D002648:Child; D005260:Female; D006801:Humans; D007267:Injections; D008297:Male; D008963:Molar; D010147:Pain Measurement; D010513:Periodontal Ligament; D013594:Syringes; D014094:Tooth, Deciduous
chemical_list: D000779:Anesthetics, Local