Efficacy of Infiltration Anaesthesia of 4% Articaine HCl (buccal) Versus 2% Lignocaine HCl (buccolingual) in Extraction of Mandibular Premolars: A Single Centred, Randomised, Crossover Group Study.

PURPOSE: The purpose of the study was to evaluate and compare the efficacy of buccal and lingual infiltration (B/L I) of 2% lignocaine HCl and buccal infiltration (BI) of 4% articaine for orthodontic extraction of mandibular premolars. MATERIALS AND
METHOD: One hundred and four patients (age group 14-26 years) were selected with the indication of bilateral mandibular first or second premolar extraction for orthodontic treatment. Patients were randomly distributed in 2 groups. Group A received B/L I with lignocaine and Group B for BI with articaine in two different appointments in 2-week interval. The pain scores for each patient were evaluated during extraction using the visual analogue scale (VAS) and verbal pain scale (VPS). Statistical analysis was performed by descriptive and inferential statistics using Chi-square test. The agreement between VAS and VPS was obtained by applying intra-class correlation coefficient.
RESULTS: No pain was experienced during extraction in 77% (VAS) and 79% (VPS) patients infiltrated in group A and 84% (VAS) and 90% (VPS) patients of group B with articaine. The difference between the groups was statistically significant. A strong positive correlation was found between VAS and VPS scores in the both groups.
CONCLUSION: Buccal infiltration with articaine proved to be an effective alternative to buccal and lingual infiltration with lignocaine in the extraction of mandibular premolars. © The Association of Oral and Maxillofacial Surgeons of India 2019.