• Naichuan Su, Yan Liu, Xianrui Yang, Zongdao Shi, and Yi Huang.
• State Key Laboratory of Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Prosthodontics, West China School of Stomatology, Sichuan University, Chengdu, China.
• Int Dent J. 2014 Apr 1;64(2):96-107.

AbstractThe objective of the study was to assess the efficacy and safety of mepivacaine compared with lidocaine used in local anaesthesia in dentistry. Medline, Cochrane Central Register of Controlled Trials, EMBASE, Chinese BioMedical Literature Database, China National Knowledge Infrastructure and WHO International Clinical Trials Registry Platform were searched electronically. Relevant journals and references of studies included were hand-searched for randomised controlled trials comparing mepivacaine with lidocaine in terms of efficacy and safety. Twenty-eight studies were included, of which 15 had low risk of bias and 13 had moderate risk of bias. In comparison with 2% lidocaine with 1:100,000 adrenaline, 3% mepivacaine showed a lower success rate (P = 0.05), a shorter onset time of pulpal anaesthesia (P = 0.0005), inferior pain control during injection phase and superior inhibition of heart rate increase (P < 0.0001). In contrast, 2% mepivacaine with 1:100,000 adrenaline gave a higher success rate (P < 0.00001), a similar onset time of pulpal anaesthesia (P = 0.34) and superior pain control during injection phase (P < 0.0001); 2% mepivacaine with 1:20,000 levonordefrin had the same success rate (P = 0.69) and similar onset time of pulpal anaesthesia (P = 0.90). In addition, 3% mepivacaine had shorter onset time (P = 0.004), same level of success rate (P = 0.28) and similar pain control during injection and postinjection compared with 2% lidocaine with 1:50,000 adrenaline. Given the efficacy and safety of the two solutions, 2% mepivacaine with vasoconstrictors is better than 2% lidocaine with vasoconstrictors in dental treatment. Meanwhile, 3% plain mepivacaine is better for patients with cardiac diseases.© 2014 FDI World Dental Federation.

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