New technology x rotatory conventional instrument: evaluation of variable that may influence on emotional children condition

The aim of this study was to identify fear/anxiety in children with past dental experience (CE) or not (SE) using three different manner of dental cavity preparation: ultrasound (Sistema CVDentus®), air abrasion system (Rondoflex®) and rotatory instrument (Kavo). Forty eight children, with 8- 12 years old were randomly divided into 2 groups (CE e SE). Dental treatment was realized in two sessions, including dental cavity preparation of occlusal caries on 16 e 26 tooth, using Rotatory Instrument and o Air Abrasion System or Ultrasound. During dental procedures children heart rate was taken, on following situations: waiting room, seating on dental chair, anesthesia, when using rubber dam, 5 minutes after the treatment beginning and on final session. Additionally, a “Facial Image to assess child dental anxiety” (FIS) was uses before and after treatment. To evaluate children dental fear was used the questionnaire “Children Fear Survey Schedule- Dental Subscale (CFSS- DS)”. The comparison of the two groups (CE and SE) and the three technologies use for dental cavity preparation in heart rate study and FIS, submitted to Friedman’s test resulted on no significant difference. However, it was observed higher heart rate when children seats on dental chair (p < 0.05). CFSS-DS results demonstrate a homogeneous sample with lower dental fear/anxiety. It was concluded that children anxiety and fear are higher on sitting on dental chair and tend to diminish during technological devices free treatment.