Rai Siddhartha, Jaisani Mehul Rajesh, Dongol Ashok, Acharya Pradeep, Yadav Anjani Kumar
Department of Oral and Maxillofacial Surgery, B.P Koirala Institute of Health Sciences, Dharan, Nepal.
J Dent Anesth Pain Med. 2024 Apr;24(2):91-99. doi: 10.17245/jdapm.2024.24.2.91. Epub 2024 Mar 28.
Palatal injections are often painful. We aimed to compare topical ice and 20% benzocaine gel for pre-injection anesthesia before greater palatine nerve block (GPNB) injections.
A randomized split-mouth clinical trial was conducted among patients aged 15-60-years needing bilateral GPNB injections. A total of 120 palatal sites from 60 patients were randomly allocated to Group A (topical ice) or Group B (20% benzocaine gel). Pain was evaluated using sound, eye, motor (SEM), and the visual analog scale (VAS) in both groups. Inferential analysis was performed using the Mann-Whitney U test.
The mean age of the participants was 20.5 ± 3.9 years. The median VAS score for group A was 11 (Q1 - Q3: 5.25 - 21.75), which was slightly higher than the 10 (Q1 - Q3: 4.0 - 26.75) reported in group B. However, the difference was not statistically significant (P = 0.955). The median SEM score for group A and group B was 3.5 (Q1 - Q3: 3.0 - 4.0) and 4.0 (Q1 - Q3: 3.0 - 4.0), respectively, which was statistically insignificant (P = 0.869).
Using ice as a form of topical anesthetic for achieving pre-injection anesthesia before GPNB was as effective as 20% benzocaine gel.
腭部注射通常会引起疼痛。我们旨在比较局部冰敷与20%苯佐卡因凝胶用于腭大神经阻滞（GPNB）注射前的注射前麻醉效果。
在15至60岁需要双侧GPNB注射的患者中进行了一项随机双盲临床试验。来自60名患者的总共120个腭部部位被随机分配至A组（局部冰敷）或B组（20%苯佐卡因凝胶）。两组均使用声音、眼部、运动（SEM）和视觉模拟量表（VAS）评估疼痛。采用曼-惠特尼U检验进行推断性分析。
参与者的平均年龄为20.5±3.9岁。A组的VAS评分中位数为11（四分位间距：5.25 - 21.75），略高于B组报告的10（四分位间距：4.0 - 26.75）。然而，差异无统计学意义（P = 0.955）。A组和B组的SEM评分中位数分别为3.5（四分位间距：3.0 - 4.0）和4.0（四分位间距：3.0 - 4.0），差异无统计学意义（P = 0.869）。
在GPNB注射前使用冰敷作为局部麻醉剂实现注射前麻醉的效果与20%苯佐卡因凝胶相同。
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