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4% articaine buccal infiltration versus 2% lidocaine inferior alveolar nerve block for emergency root canal treatment in mandibular molars with irreversible pulpits: a randomized clinical study
Author(s) -
Monteiro M. R. F. P.,
Groppo F. C.,
HaiterNeto F.,
Volpato M. C.,
Almeida J. F. A.
Publication year - 2015
Publication title -
international endodontic journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.988
H-Index - 119
eISSN - 1365-2591
pISSN - 0143-2885
DOI - 10.1111/iej.12293
Subject(s) - articaine , medicine , inferior alveolar nerve , lidocaine , exact test , anesthesia , buccal administration , molar , randomized controlled trial , dentistry , root canal , surgery
Aim To compare the anaesthetic efficacy of inferior alveolar nerve blocks (IANB) with 1.8 mL of 2% lidocaine (LI) to a buccal infiltration (BI) with 1.8 mL of 4% articaine (AR), both with 1 : 100 000 epinephrine, in patients with symptomatic irreversible pulpits in a randomized controlled trial. Methodology Volunteers presenting at the Emergency Centre ( FOP ‐ UNICAMP ) were randomly divided into two groups (30 for AR and 20 for LI ). Operator and patient were not blinded. Success was recorded when complete pain‐free treatment was achieved after a single injection ( IANB or BI ) or when one supplemental injection was needed for emergency endodontic procedures. Success rate of supplemental injection was evaluated between and within groups using Fisher's exact test and chi‐square test. Results A higher success rate ( P = 0.03/Fisher's exact test) was observed with AR (40%) than with LI (10%). No significant difference was found when a single injection plus one supplemental injection was compared between groups ( P = 1.0; AR = 70%; LI = 80%). However, supplemental injection increased the anaesthetic success rates ( AR , P = 0.04; LI , P = 0.0001) within groups. Conclusions Single anaesthesia techniques ( IANB or BI ) were not able to achieve pain‐free emergency endodontic treatment. Supplemental anaesthetic techniques should be considered prior to treatment procedures in order to increase success rate (consort: registration number – NCT 01912755/Fapesp: #2009/10834‐4).