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. 2020 Sep 18.
doi: 10.1038/s41415-020-2002-z. Online ahead of print.

Combined inferior alveolar nerve block anaesthesia and local infiltration anaesthesia in extraction of impacted mandibular third molars: a randomised controlled trial

Zhicong Li  1 , Mi Yang  1 , Ting Liao  1 , Yang Zhou  1 , Haiqiong Yue  1 , Zhengguo Piao  1 , Libin Zhou  2
Affiliations

Combined inferior alveolar nerve block anaesthesia and local infiltration anaesthesia in extraction of impacted mandibular third molars: a randomised controlled trial

Zhicong Li et al. Br Dent J. .

Abstract

Aim To compare the anaesthetic effect of combination of inferior alveolar nerve block anaesthesia and local infiltration anaesthesia with nerve block anaesthesia techniques in the extraction of mandibular third molars.Materials and methods One hundred and fifty healthy adult volunteers were divided into three groups and were administered three different local anaesthetic techniques before tooth extractions: group A (inferior alveolar nerve, lingual nerve and buccal nerve block anaesthesia with lidocaine), group B (inferior alveolar nerve, lingual nerve and buccal nerve block anaesthesia with mepivacaine) and group C (inferior alveolar nerve block anaesthesia with lidocaine and infiltration anaesthesia with mepivacaine). The patients' reported pain on anaesthesia injection and tooth extraction, the surgeon's assessment of anaesthetic effect, the severity of intra-operative bleeding and post-operative complications were evaluated.Results There was no significant difference in visual analogue scale (VAS)-pain of anaesthesia among the three groups. Compared with groups A and B, group C had reduced VAS-pain of tooth extraction scores. Additionally, the surgeon's assessment of anaesthetic effect improved and intra-operative bleeding decreased.Conclusions The combination of inferior alveolar nerve block and infiltration anaesthesia provides a stronger anaesthetic effect in the extraction of mandibular third molars.

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