Rehman Nurain, Qazi Samir Riaz
Institute of Dentistry, CMH Lahore Medical College.
Oral and Maxillofacial Surgeon, Lahore, Pakistan.
Anesth Prog. 2019 Spring;66(1):24-29. doi: 10.2344/anpr-66-01-01.
This study aims to compare the effect of topical anesthesia against the use of no topical agent on pain of needle penetration and local anesthesia deposition during buccal infiltration in anterior maxilla. In a randomized controlled trial, 100 adult participants were randomly allocated to the benzocaine group (received 20% benzocaine gel) and no benzocaine group (received no topical agent) prior to buccal infiltration in maxillary anterior teeth. A 27-gauge needle was used to deposit 2% lidocaine with 1:100,000 epinephrine. Pain of needle penetration and local anesthesia deposition was recorded separately using an 11-point Numeric Pain Rating Scale. Results showed that although 20% benzocaine significantly reduced pain on needle penetration during buccal infiltration in maxillary anterior teeth, the difference was small and the clinical significance is not clear. Topical anesthetic did not affect pain of local anesthetic deposition.
本研究旨在比较局部麻醉与不使用局部麻醉剂对上颌前部颊侧浸润麻醉时针刺疼痛及局部麻醉剂注射疼痛的影响。在一项随机对照试验中，100名成年参与者在上颌前牙颊侧浸润麻醉前被随机分配至苯佐卡因组（接受20%苯佐卡因凝胶）和无苯佐卡因组（不接受局部麻醉剂）。使用27号针头注射含1:100,000肾上腺素的2%利多卡因。使用11点数字疼痛评分量表分别记录针刺疼痛和局部麻醉剂注射疼痛。结果显示，虽然20%苯佐卡因显著减轻了上颌前牙颊侧浸润麻醉时的针刺疼痛，但差异较小，临床意义尚不清楚。局部麻醉剂对局部麻醉剂注射疼痛无影响。
