Department of Pediatric and Preventive Dentistry, SRM Dental College, Bharathi Salai, Ramapuram, Chennai, Tamil Nadu, India.
Int J Paediatr Dent. 2022 Jan;32(1):31-40. doi: 10.1111/ipd.12787. Epub 2021 May 7.
Local anaesthesia (LA) administration provokes dental anxiety in children. BrightHearts is a biofeedback relaxation application designed to reduce anxiety in children during painful procedural interventions.
To compare the effectiveness of biofeedback relaxation (BR) and audio-visual (AV) distraction on dental anxiety among 7- to 12-year-old children while administering LA.
A total of 70 children requiring dental treatment under LA for three visits were recruited for this single-blinded randomized control trial. They were randomly divided into two equal groups. Group A received BR and Group B received AV distraction during LA delivery in the first two visits, and both groups did not receive any intervention during LA in third visit. Outcomes were measured using heart rate and a cartoon-based anxiety measuring scale (Chotta Bheem-Chutki (CBC) scale).
AV group had statistically significant higher mean heart rates than BR group (P < .001) during needle penetration and post-intervention, respectively. CBC scale showed no statistical differences between the groups.
Both the interventions are effective in reducing dental anxiety during LA administration. Based on objective measures, BR is found to be better than AV distraction. Subjective scores, however, show no differences between the two.
局部麻醉（LA）的使用会引起儿童的牙科焦虑。BrightHearts 是一款生物反馈放松应用程序，旨在减轻儿童在进行疼痛性程序干预时的焦虑。
比较生物反馈放松（BR）和视听（AV）分散注意力在给予 LA 时对 7 至 12 岁儿童牙科焦虑的有效性。
本单盲随机对照试验共招募了 70 名需要在三次就诊中接受 LA 治疗的儿童。他们被随机分为两组。组 A 在头两次就诊中接受 BR，组 B 在头两次就诊中接受 AV 分散注意力，而两组在第三次就诊中均未接受任何干预。使用心率和基于卡通的焦虑测量量表（Chotta Bheem-Chutki（CBC）量表）来衡量结果。
在针穿刺和干预后，AV 组的平均心率均明显高于 BR 组（P<.001）。CBC 量表显示两组之间无统计学差异。
两种干预措施均能有效减轻 LA 给药时的牙科焦虑。基于客观测量，BR 优于 AV 分散注意力。然而，主观评分显示两组之间没有差异。
