Abstract
The potential anxiety for pain which is brought forth from sharp needle tips and the actual pain when the needle is inserted are the disadvantages of local anesthesia using a syringe with needle. This certainly adds to the reluctance among pediatric patients to undergo dental treatment.
The purpose of this investigation was to evaluate the efficacy of jet injection (SYRIJET MARK II®).
The subjects were 22 adults who were dental students and 10 pediatric patients who came to the Department of Pediatric Dentistry at Nagasaki University Hospital. After the application of SYRIJET MARK II®, a questionnaire was given.
The results were as follows;
1. In the adult group, according to the questionnaire and the observation of soft tissue after pricking, the SYRIJET MARK II® does not seem to be effective in decreasing pain and anxiety.
2. In the pediatric group, according to the questionnaire, many children answered that jet injection was preferable to ordinary local anesthesia using a syringe with needle. This may indicate effectiveness for decreasing pain and anxiety.
3. The jet injection may be suitable for simple treatment such as the topical anesthesia for rubber dam placement or the extraction of primary teeth.
