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Objectives: The aim of the study was to compare the efficacy of intraligamentary anesthesia (ILA) with conventional inferior alveolar nerve block (IANB) for extraction of mandibular posterior teeth.Materials and methods: In a prospective clinical trial, a total of 301 mandibular posterior teeth were extracted in 266 patients. Randomization was conducted into those who received ILA (patients n = 98; teeth n = 105) and those who received IANB (patient n = 140; teeth n = 140). Twenty-eight patients were subjected to bilateral mandibular dental extractions and received both ILA und IANB (teeth n = 56 (ILA n = 28; IANB n = 28)). The primary objective was to evaluate the differences in pain during injection, in pain during tooth extraction (numeric rating scale (NRS)), and in anesthetic quality (complete/sufficient vs. insufficient/no effect). Differences in latency time, amount of anesthetic solution, need for second injection, and duration of local numbness as well as in the incidence of dry socket were assessed.Results: ILA had significant lower pain of injection (p < 0.001), shorter latency time (p < 0.001), and shorter duration of local numbness (p < 0.001) and required lesser amount of local anesthetic solution (p < 0.001) together with a similar anesthetic quality (p = 0.082) compared to IANB. Concerning pain during extraction (p = 0.211), frequency of second injection (p = 0.197), and incidence of dry socket (p = 0.178), no significant differences were detected.Conclusion: ILA fulfills the requirements of a minimal invasive and patient-friendly local anesthetic technique. In accordance, it represents a safe and reliable alternative to IANB for extraction of mandibular posterior teeth.Clinical relevance: ILA can be recommended for routine dental extractions. [ABSTRACT FROM AUTHOR]

The objective of this research was to assess how aware house officers and post graduate trainees are about periodontal ligament injections. 150 questionnaires were distributed but only 105 responses were received. The questionnaire consisted of 10 questions in which participants were asked basic questions about injection technique for extractions and knowledge about periodontal ligament injection. All 105 responses were sent for statistical analysis. Out of 105 participants; 49.5% used nerve infiltration, 35.2% used nerve block, 13.3% used both and 1% used periodontal ligament injection for extraction. The technique used for effective anaesthesia for extraction of tooth was nerve block 82.8%, periodontal ligament injection 7.6%, 6.7% Nerve infiltration, 2.9% pulpal injection. It is concluded that many house officers and post graduate trainees know about the PDL injection but they apply this method of anesthesia in circumstances when the routine infiltration and block (IANB) fail to be effective. [ABSTRACT FROM AUTHOR]