Hosseini Hadi, Amirpour Haradasht Sadra, Khazaei Amir Hossein, Parhizkar Sepehr, Dehabadi Farnaz
Department of Oral and Maxillofacial Surgery, School of Dentistry , Guilan University of Medical Sciences, Rasht, Iran.
Department of Oral and Maxillofacial Surgery, School of Dentistry, Zahedan University of Medical Sciences, Zahedan, Iran.
Clin Oral Investig. 2024 Dec 3;28(12):680. doi: 10.1007/s00784-024-06082-7.
With respect to the high failure rate of conventional IANB technique and other associated disadvantages, in this study we focused on an alternative called Water on Tray technique and assessed the efficiency of this method compared to the conventional technique.
This single-blind, single center randomized controlled trial was carried out among 90 individuals referred to the dental clinic of the International Branch of Guilan University of Medical Sciences (IB-GUMS) from November to December of 2017. The patients were randomly assigned into two groups. Injection pain was assessed using Numeric Rating Scale (NRS) and patients were asked to report any tingling sensation on the lip and tongue on the side of injection. Electric pulp test (EPT) and the stick test were also performed. If no numbness was report within 15 min, the injection was deemed unsuccessful. SPSS software version 25 was used with the significance level of p < 0.05.
The WOT technique demonstrated a significantly higher success rate of achieving adequate anesthesia on the first attempt (p < 0.05). Additionally, the WOT technique exhibited other significant advantages, including no instances of positive aspiration, rapid onset of action coupled with lingual nerve block, and reduced pain during injection.
The Water on Tray is a favorable technique to achieve inferior alveolar nerve block due to its ease and high success rate compared to the conventional technique.
This technique allows dentists to achieve a higher success rate with inferior alveolar nerve blocks and reduce injection pain in patients.
鉴于传统下牙槽神经阻滞（IANB）技术的高失败率及其他相关缺点，本研究聚焦于一种名为托盘注水技术的替代方法，并评估该方法与传统技术相比的有效性。
本单盲、单中心随机对照试验于2017年11月至12月在90名转诊至吉兰医科大学国际分校（IB - GUMS）牙科诊所的个体中进行。患者被随机分为两组。使用数字评定量表（NRS）评估注射疼痛，并要求患者报告注射侧嘴唇和舌头的任何刺痛感。还进行了牙髓电测试（EPT）和棉签试验。如果在15分钟内未报告麻木，则认为注射不成功。使用SPSS 25软件，显著性水平为p < 0.05。
托盘注水技术在首次尝试时实现充分麻醉的成功率显著更高（p < 0.05）。此外，托盘注水技术还表现出其他显著优势，包括无回血阳性情况、起效迅速并伴有舌神经阻滞，以及注射时疼痛减轻。
与传统技术相比，托盘注水技术操作简便且成功率高，是实现下牙槽神经阻滞的一种良好技术。
该技术使牙医在下牙槽神经阻滞时能获得更高的成功率，并减轻患者的注射疼痛。
