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OPERATOR PREFERENCE OF RETRACTION METHOD DURING ANESTHESIA DELIVERY

Figure 3. Control side featuring mirror retraction Figure 4. Device side featuring device retraction prepared exactly as on the control side, including topical application after drying the insertion site with 2x2 gauze. Prior to the injection, the device was placed in the mouth over the area of the insertion site and kept on for five seconds. The needle was inserted in close proximity to one of the two tip prongs, and advanced to the deposition site where anesthetic( 0.9 ml) was delivered through an ASA injection( Fig. 4). Verification of insertion depth, amount deposited, and aspiration tests were conducted by both the DCP and the supervising investigator. Upon completion of the delivery of the anesthetic, the needle was removed from the mucosa, and the device remained on for an additional five seconds as instructed by the manufacturer. The DCPs were given a one page survey( appendix 1) and asked to circle their preferred answer. The questions from the survey inquired about the DCP’ s perception regarding the study. Question 1 asked if the DCP was compliant with watching the training video for the device. Question 2 asked about anxiousness and comfort when delivering the ASA injection on the control side. Question 3 asked about anxiousness and comfort when delivering the ASA injection on the device side. Question 4 asked the DCPs about their preferred retraction method. Question 5 asked the DCP’ s which retraction method is perceived as easier. Chi-square tests of goodness-of-fit were conducted to investigate whether there was a significant

difference in the proportion of respondents that chose the various categories within one criterion. In a few surveys, the DCPs chose multiple preferences among the given answers making cross statistical studies meaningless. As a result, these respondents were not part of the analyses, leading to some missing data.

3. Results

62 DCPs participated and there were no reported NSIs. The DCP’ s were compliant with watching the recommended training video from the manufacturer. Regarding comfort and confidence, about the delivery of the anesthesia on the control side, 11 stated they felt“ uncomfortable and anxious” while the remaining 51 responded favorably:“ comfortable and confident” leading to a p-value of less than 0.001. The p-value confirms that the proportion of participants who felt comfortable and confident was significantly higher than the proportion that felt uncomfortable and anxious( Table 1). When asked about comfort and confidence during the delivery of the anesthesia on the device side, 17 DCPs answered they felt“ uncomfortable and anxious” while the remaining 45 stated they were“ comfortable and confident” leading to a p-value of less than 0.001( Table 2). As in the previous case, this p-value indicates that the proportion of participants who felt comfortable and confident was significantly higher than the proportion that felt uncomfortable and anxious.

Table 2. During Delivery on Device Side

Comfortable and Confident Uncomfortable and anxious p value 45 17 < 0.001