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Pain Perception Due to Dental Injection by Smartject: Split Mouth Design Study
Faezeh Ghaderi1, Mahboobe Ahmadbeigi2
1Oral and Dental Disease Research Center, Dept. of Pediatric Dentistry, School of Dentistry, Shiraz University of Medical Sciences, Shiraz, Iran.
Journal of Dentistry (Shiraz, Iran)
|March 2, 2018
Summary
Computer-controlled local anesthesia delivery system (CCLAD) devices like Smartject may reduce pain during dental injections compared to traditional methods. This study found significantly lower pain perception with Smartject, suggesting controlled fluid pressure is key to reducing injection discomfort.
Area of Science:
- Dentistry
- Pain Management
- Anesthesiology
Background:
- Dental injections are a common source of fear, particularly for children.
- Minimizing pain during dental anesthesia is a significant clinical challenge.
- Computer-controlled local anesthesia delivery system (CCLAD) devices offer potential for reduced injection pain.
Purpose of the Study:
- To compare the pain perception of dental injections administered via Smartject (a CCLAD) versus the conventional technique.
- To evaluate the efficacy of Smartject in reducing pain during maxillary premolar anesthesia.
Main Methods:
- A randomized single-blind crossover clinical trial involving 50 dental students.
- Participants received injections in the maxillary premolar buccal mucosa using both Smartject and conventional methods.
- Pain perception was measured using the Visual Analogue Scale (VAS) and analyzed with statistical tests (p<0.05).
Main Results:
- A statistically significant difference in VAS scores was observed between the two methods.
- Mean VAS scores were lower for Smartject (14.5±7.4) compared to the conventional technique (24±12.1).
Conclusions:
- Needle penetration may not be the primary cause of injection pain.
- Inconsistent fluid pressure from anesthetic solution appears to be a major factor in pain development.
- Smartject, as a CCLAD, is a suitable device for minimizing pain during dental injections.
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