IADR Abstract Archives
Comparison of Two Topical Anesthetics on Pain Experienced during Intraoral Injection with an Alternative Technique in Children: A Randomized Double-Blind Clinical Trial
Objectives: The purpose of this study was to compare the pain responses of children during needle insertion and injection of buccal infiltration with an alternative technique at bilateral buccal sites prepared with a 5-second topical application of Benzocaine 20% gel versus EMLA 5% cream.
Methods: 52 children (Frankl 3-4) between the ages of 4 to 12, requiring bilateral local anesthesia in a pediatric dental clinic, were selected for this study. The clinical trials were controlled under a double-blind split-mouth randomized design. Each child received a buccal anesthesia with “bite - rest on - pull” technique following topical application of either Benzocaine 20% gel or EMLA 5% cream for 5 seconds during the first visit and during the second visit with the other. First, topical anesthetics were applied by a trained independent dentist. Then, one operator administered all injections using a 31G extra-short dental needle. The modified Behavioral Pain Scale (mBPS) was used to assess the pain responses during needle insertion and injection. A second trained independent dentist were employed to record the behavioral parameters. After administering the local anesthesia on each site, children were immediately asked to rank their feeling based on the Wong-Baker Faces Pain Rating Scale (WPFBs). Data were analyzed with the Mann-Whitney, Fisher’s exact test with a 95% level of confidence.
Results: Almost all children rated no pain on the WBFP scale (Face 0). Only few signs of discomfort were noted under mBPS. Subjective and objective evaluations disclosed no differences in effect of both topical anesthetics between needle insertion and injection of local anesthetic with the “bite - rest on - pull” technique.
Conclusions: No differences in pain responses of children during insertion and injection of local anesthesia with the “bite - rest on - pull” technique when either the Benzocaine 20% gel or EMLA 5% cream is applied for 5 seconds.
Methods: 52 children (Frankl 3-4) between the ages of 4 to 12, requiring bilateral local anesthesia in a pediatric dental clinic, were selected for this study. The clinical trials were controlled under a double-blind split-mouth randomized design. Each child received a buccal anesthesia with “bite - rest on - pull” technique following topical application of either Benzocaine 20% gel or EMLA 5% cream for 5 seconds during the first visit and during the second visit with the other. First, topical anesthetics were applied by a trained independent dentist. Then, one operator administered all injections using a 31G extra-short dental needle. The modified Behavioral Pain Scale (mBPS) was used to assess the pain responses during needle insertion and injection. A second trained independent dentist were employed to record the behavioral parameters. After administering the local anesthesia on each site, children were immediately asked to rank their feeling based on the Wong-Baker Faces Pain Rating Scale (WPFBs). Data were analyzed with the Mann-Whitney, Fisher’s exact test with a 95% level of confidence.
Results: Almost all children rated no pain on the WBFP scale (Face 0). Only few signs of discomfort were noted under mBPS. Subjective and objective evaluations disclosed no differences in effect of both topical anesthetics between needle insertion and injection of local anesthetic with the “bite - rest on - pull” technique.
Conclusions: No differences in pain responses of children during insertion and injection of local anesthesia with the “bite - rest on - pull” technique when either the Benzocaine 20% gel or EMLA 5% cream is applied for 5 seconds.