RESUMEN
AIM: To date, there is no safe, effective, and rapid method to eliminate the pain associated with needle insertion. It is noticed that using a low-energy laser before intradermal and intramuscular injection would help rapid local anaesthesia with a lidocaine product. However, there is no valuable data on the effect of the concomitant use of laser and benzocaine as a pre-treatment option, compared to local application of benzocaine products alone before needle insertion. MATERIALS AND METHODS: A prospective single-blind clinical trial was designed to assess pain perception during needle insertion into mucosa in 66 healthy volunteer dental students. They received a topical anaesthetic agent on one side (control) applied for one minute and a topical anaesthetic agent plus low-power laser on the other side (experimental) prior to needle insertion. The first pre-treatment method was chosen based on block randomisation table. A dentist recorded the subjects' reaction based on the visual analogue scale (VAS) during insertion of needle in the two groups. SPSS version 15 was used for data analysis. The statistical significant level was defined at P-value< 0.01. RESULTS: The mean scores of VAS for the experimental and control groups was 21± and 19± 2.70 respectively, with a statistically significant higher VAS score in the experimental group, although it was not clinically significant. CONCLUSION: Simultaneous application of laser with local anaesthetic products containing benzocaine in the buccal mucosa before dental needle insertion does not reduce pain perception.
Asunto(s)
Agujas , Manejo del Dolor/métodos , Adulto , Femenino , Humanos , Masculino , Estudios Prospectivos , Método Simple Ciego , Adulto JovenRESUMEN
AIM: For many children medical and dental procedures, unfamiliar dental staff and treatment places are disturbing and stressful. Stress in children often makes them uncooperative. General anaesthesia is indicated for anxious uncooperative children or those who are disabled, immature or too young to undergo dental treatment by other means. Moreover parents' separation while entering the operative room is a traumatic experience for children. Thus premedication such as midazolam is recommended to decrease child's stress. In these situations the increased recovery time was considered as one of the midazolam side effects. There is no study that evaluated the effect of midazolam both in parents-child separation and recovery time in long dental procedure. The purpose of this study was to evaluate the effect of nasal midazolam premedication with placebo on parents-child separation and recovery times in uncooperative paediatric patients undergoing long-lasting general anaesthesia for dental procedures. STUDY DESIGN: This randomised, double-blind study was done on 60 uncooperative patients (ASA physical status I or II) aged 2-4 years who were scheduled for general anaesthesia for dental treatment. Group A received 0.2 mg/kg intranasal midazolam as premedication, and group B received the same volume of intranasal placebo 20 minutes before entering the operating room for general anaesthesia. General anaesthesia was done with the same method for all patients, then parent-child separation and recovery times were compared between the two groups. STATISTICAL ANALYSIS: Statical significance was set at P≤0.05. Statically analysis was performed using SPSS version17.Chi-squared and student t-tests were applied to analyse the data. RESULTS: We found significant differences in parents- child separation assessment between two groups. Nasal midazolam premedication had a positive effect on parents-child separation; but there was no significant difference between the two groups in terms of recovery time. CONCLUSION: Premedication of nasal midazolam before induction of general anaesthesia did not prolong recovery time but made the separation of children from their parents easier by showing a better behaviour.