Acute dental infections occur mainly when bacteria invade the dental pulp and its surrounding tissues of the tooth. Various acute infections from dental origin include periapical abscess, pericoronal abscess, dentoalveolar abscess, pericoronitis. The most common cause for dental abscesses is dental caries, trauma or poor oral hygiene. Aim: Our present study aimed to assess the correlation between acute infections and local anaesthesia failure in the patients who underwent surgical extractions. Materials and methods: The present study was carried out in a private dental hospital in a university setting, Chennai. About n=51 cases of acute infections such as periapical abscess and dentoalveolar abscess cases were collected using the Dental hospital management system.The data collected was verified in excel and statistically analysed using SPSS software version 23.0. Results: In our present study, a total of 51 cases of acute infections were included. In which 74.5% of periapical abscess and 25.4 % of dentoalveolar infections cases were taken. We analysed and correlated the acute infections; and the amount of local anaesthesia and technique used for the extraction. Out of 51 cases of acute infections, few cases were given 4 ml of local anaesthesia by infiltration technique and inferior alveolar nerve blocks (4%), 2 ml of local anaesthesia given using infraorbital nerve block (4%), 5 ml of anaesthesia was given by infiltration technique (2%). Conclusion: In our study we observed that in acute infection cases local anaesthesia failed in 6%, which used infiltration and inferior alveolar nerve blocks for extractions. Thus our study has concluded that there is correlation between acute infections and failure of anaesthesia in terms of the amount of local anaesthesia and technique used to treat acutely infected teeth by surgical extractions.

10.9756/INT-JECSE/V14I2.414