腭部浸润麻醉期间舒适无针注射系统的有效性

其他：群控：传统牙科注射方法的应用

传统牙科注射方法腭部注射的应用；它以 45 度针角涂抹在腭龈边缘*下方 5-10 毫米处，贴在附着的牙龈上。 进针后0.2-0.3 当骨接触被移除（3-5毫米）时，储存毫升麻醉溶液。使用含有 1/100,000 肾上腺素的 1 mL 盐酸阿替卡因（Ultracaine D-S forte，Hoechst，加拿大）和 27 G 牙科针作为注射局部麻醉剂。 该组包括 25 名患者并进行了手术。 等待5分钟后，用探针（探龈）探查麻醉区域，检查麻醉是否生效。 随后，在传统牙科注射器的帮助下进行颊浸润麻醉并进行拔牙。

其他：传统牙科注射

传统牙科注射法的应用：采用传统牙科注射法对第一恒磨牙进行腭部麻醉。

实验性的：Group Experimental: Application of Comfort-in Jet Injection Method

Application of Comfort-in Jet Injection Method Comfort-in jet injection method was used for palatal anesthesia of the permanent 1st molar. Using a silicone flat cap, it was placed 5 mm below the palatal gingival margin, close to the free gingiva, and with a steep angle. 0.3 ml of anesthetic solution was administered by pressing the jet injection system button. 1 mL Articaine Hydrochloride (Ultracaine D-S forte, Hoechst, Canada) containing 1/100,000 epinephrine was used as a local anesthetic agent in the injections. 25 patients were included in this group and the procedure was performed. After waiting for 2 minutes, the anesthetized area was probed with the help of a probe (probing gingiva) to check whether the anesthesia had taken effect. Afterwards, buccal infiltration anesthesia was performed with the help of a traditional dental injector and tooth extraction was performed.

设备：舒适的喷射注射法

Comfort-in喷射注射法的应用：采用Comfort-in喷射注射法对第一恒磨牙进行腭部麻醉。

Pain Perception Measured by the Wong-Baker FACES Pain Rating Scale

Pain perception was assessed using the Wong-Baker FACES Pain Rating Scale. The scale ranges from 0 to 10, where 0 represents no pain and 10 represents the worst pain imaginable. Higher scores indicate greater pain intensity.

Pain Perception Measured by the Face, Legs, Activity, Cry, and Consolability (FLACC) Scale

Pain perception was assessed using the Face, Legs, Activity, Cry, and Consolability (FLACC) scale. The scale ranges from 0 to 10, where 0 indicates no pain and 10 indicates the highest level of pain. Higher scores indicate worse outcomes (greater pain intensity). Behavioral responses during the injection were video-recorded and later evaluated.