Local analgesia comparison of premixed lignocaine and adrenaline with freshly prepared lignocaine and adrenaline

ABSTRACT

To compare the analgesic effect of commercially available premixed injection of lignocaine 2% and adrenaline in 1100,000 dilution with that of freshly prepared solution by mixing adrenaline in suitable quantity to 2% plain lignocaine just before the time of injection for tooth extraction in patients of dental caries. Descriptive Interventional Study. Armed Forces Institute of Dentistry [AFID] Rawalpindi from March 2006 to August 2006. Patients and A total of 50 patients of dental caries, who were scheduled for tooth extraction, were divided into 2 groups of 25 each. Group A was provided analgesia with commercially available premixed injection of lignocaine and adrenaline and group B was provided analgesia with freshly prepared solution of plain lignocaine and adrenaline. In group A, good quality analgesia sufficient enough for tooth extraction, was achieved in 19 patients whereas in group B good quality analgesia was achieved in 23 patients. Freshly prepared mixture of plain lignocaine and adrenaline gives better analgesic effect than that of commercially available solution of lignocaine with adrenaline