Outcomes of Inferior Alveolar Nerve Block Versus Local Infiltration for Removal of Bilateral Lower Premolar in Patients Undergoing Orthodontic Treatment
DOI:
https://doi.org/10.70749/ijbr.v3i5.2829Keywords:
Local Infiltration, Inferior Alveolar Nerve Block, Mandibular Premolar Extraction, Orthodontic Treatment.Abstract
Objective: To compare the outcomes of inferior alveolar nerve block (IANB) and local infiltration (INF) for the extraction of bilateral mandibular premolars in orthodontic patients. Study Design: Prospective comparative study. Place and Duration of Study: Department of Oral and Maxillofacial Surgery, Fatima Memorial Hospital, Lahore, from 14 March 2024 to 14 September 2024. Methodology: Sixty orthodontic patients requiring bilateral extraction of vital mandibular premolars were included through non-probability convenience sampling. Each patient underwent extraction of the right premolar under local infiltration, followed one week later by extraction of the left premolar under inferior alveolar nerve block. Onset and duration of anesthesia, pain during injection and extraction (VAS), and anesthetic success were recorded. Results: Sixty patients (mean age 18.6±2.4 years; 63.3% females) were analyzed. Local infiltration demonstrated significantly faster onset than inferior alveolar nerve block (1.42±0.58 vs 3.85±1.12 minutes; p<0.001), but shorter duration (96.3±18.5 vs 178.4±22.7 minutes; p<0.001). Injection pain was lower with infiltration, whereas nerve block achieved slightly higher success yet caused greater postoperative numbness and discomfort. Conclusion: Local infiltration provided a faster onset, reduced injection discomfort, and comparable anesthetic effectiveness relative to inferior alveolar nerve block, suggesting it as a preferable technique for routine orthodontic premolar extraction.
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