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Comparative study of two different computer-controlled local anesthesia injection systems in children: a randomized
J C Abou Chedid1, M Salameh1, C El Hindy2
1Department of Pediatric and Community Dentistry, Faculty of Dental Medicine, Saint Joseph University, Beirut, Lebanon.
Insights
The Calaject device demonstrated superior pain reduction compared to the WAND™ STA during dental injections in children. This study highlights Calaject as a more comfortable option for pediatric local anesthesia.
Area of Science:
- Pediatric Dentistry
- Local Anesthesia Delivery Systems
- Pain Management
Background:
- Effective local anesthesia is crucial for pediatric dental procedures.
- Minimizing pain perception during injections enhances patient cooperation and reduces anxiety.
- Computer-controlled local anesthesia (CCLA) devices aim to improve injection comfort.
Purpose of the Study:
- To compare the pain perception associated with two CCLA devices: WAND™ STA and Calaject.
- To evaluate the efficacy of Calaject versus WAND™ STA in reducing injection pain in young children.
Main Methods:
- A split-mouth randomized clinical trial involving 30 children aged 6-12 years.
- Local anesthesia was administered to the maxillary arch using both WAND™ STA and Calaject in separate sessions.
- Pain was assessed using heart rate, the Numerical Rating Scale (NRS), and Sound, Eye, and Motor (SEM) body movements.
Main Results:
- No significant difference in pulse rate was observed between the two devices.
- The Calaject device resulted in significantly lower Numerical Rating Scale (NRS) pain scores compared to WAND™ STA (p=0.017).
- Significantly lower Sound, Eye, and Motor (SEM) scores indicated less body movement with Calaject (p=0.002), despite a longer injection duration (p=0.001).
Conclusions:
- Calaject was more effective than WAND™ STA in reducing pain perception during periapical injections in young children.
- The findings suggest Calaject offers a more comfortable experience for pediatric patients undergoing local anesthesia.
Purpose:
To compare pain perception associated with two computer-controlled local anesthesia devices, the WAND™ STA (Milestone Scientific Inc., Livingston, NJ, USA) and the Calaject (Rønvig dental MFG, Daugaard, Denmark) in young children.
Methods:
A split-mouth randomized clinical trial comprising 30 patients, aged 6-12 years, received randomly, in two separate sessions, a local anesthesia injection in the maxillary using either the wand STA or the Calaject. Pain perception was evaluated using the patient's heart rate, an 11-point numerical scale (NRS), and the Sound, Eye, and Motor (SEM) body movements. Statistical difference was set at p = 0.05. Repeated measures analysis of variance were conducted to compare the mean pulse for Calaject and STA at different times. It was followed by univariate analysis and Bonferroni multiple comparisons tests. Wilcoxon tests were performed to compare NRS, SEM, and injection duration between Calaject and STA.
Results:
There was no significant statistical difference between Calaject and STA in pulse rate before injection (p = 0.720), during injection (p = 0.767), and after injection (p = 0.757). The mean NRS score was significantly greater with STA in comparison with Calaject (p = 0.017). The mean SEM score was also significantly greater with STA in comparison with Calaject (p = 0.002). However, the mean duration was significantly longer with Calaject (p = 0.001).
Conclusions:
Calaject was more effective than STA in reducing pain perception associated with periapical injection in young children.
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