Knowledge Level of Clinical Dental Students in Faculty of Dentistry, Universitas Sumatera Utara Regarding the Anesthetic Technique of Inferior Alveolar Nerve Block

The inferior alveolar nerve block technique (Fischer's method) is a local anesthetic technique that is often used in daily dental and surgical treatment. However, the failure rate reaches 15-20% because many factors affect the technique's success. Therefore, this descriptive study aims to determine the knowledge of clinical dental students regarding the inferior alveolar nerve block technique and the management of the failure associated with its characteristics. A cross-sectional approach was employed by using a validated questionnaire consisting of 2 parts, namely 6 general questions and 12 knowledge questions, which were distributed to 68 clinical dental students in the Department of Oral and Maxillofacial Surgery, Faculty of Dentistry, Universitas Sumatera Utara in 2019. The results showed that 51.5% of the students had good knowledge, 41.2% had fair knowledge and 7.4% had less knowledge. The highest percentage of students based on male gender had fair knowledge (10 people out of 15) and the female had good knowledge (30 people out of 53). The clinical dental students’ level of knowledge based on whether they have ever or never failed to perform an anesthetic block technique is in a good category. In conclusion, most of the clinical dental students at the Department of Oral Surgery in 2019 had a good level of knowledge about the inferior alveolar nerve block technique and its failure management.

Comparison of infiltration (INF) and inferior alveolar nerve block (IANB) injection techniques in bilateral therapeutic removal of mandibular premolars

Background. The present study aimed to evaluate and compare the anesthetic effect of infiltration (INF) and inferior alveolar nerve block (IANB) techniques for bilateral therapeutic extraction of mandibular premolars. Methods. One hundred patients requiring bilateral therapeutic removal of mandibular premolars were included in the study. For the extraction of the mandibular right premolar tooth, INF was used, and after one week, the mandibular left premolar tooth was extracted using the IANB. The effect of anesthesia between the two techniques was compared and evaluated by ANOVA using SPSS. Results. INF was successful in 78% of cases, whereas IANB was successful only in 22% of cases. Furthermore, INF had a significantly better anesthetic effect than IANB (P<0.05). During pain assessment during the anesthetic drug injection and the procedure, two patients in the INF and five patients in the IANB group reported minimal pain during extraction (P>0.05). The onset of the anesthetic effect was faster in the INF group, while the duration of the effect was longer in the IANB group. Conclusion. INF was a more efficacious local anesthetic technique with high success rate than the IANB technique.

TO COMPARE THE EFFECTIVENESS OF INTRALIGAMENTARY INJECTION ANAESTHESIA VERSUS INFERIOR ALVEOLAR NERVE BLOCK TECHNIQUE IN EXTRACTION OF MANDIBULAR POSTERIOR TEETH - A RANDOMIZED CLINICAL STUDY.

BACKGROUND: Profound pulpal anaesthesia using the inferior alveolar nerve block (IANB) technique for extraction of mandibular posterior teeth is difcult to achieve. Several authors emphasised the effects of intraligamentary injection anaesthesia (ILA), also known as periodontal injection; as a primary or supplementary technique. The aim of this study was to compare the efcacy of ILA over IANB technique in providing adequate and superior anaesthesia for extraction of mandibular premolars and molars. MATERIALS AND METHODS: 30 patients requiring bilateral extractions of mandibular posterior teeth were selected. The parameters evaluated were subjective (numbness) and objective (pain on gingival probing) signs of anaesthesia, difference in pain perception during the procedure; and duration of anaesthesia for ILA (Group A) and IANB technique (Group B). RESULTS: The results showed that no difference was found in terms of subjective and objective evaluation of anaesthesia between the groups. A statistically signicant difference was seen in Group A, where intraligamentary injection anaesthesia showed less pain perception than the IANB technique. However, longer duration of anaesthesia was noted in Group B. CONCLUSION: With fewer failures and complications, the intraligamentary injection can be effectively used as a primary technique to alleviate pain and profoundly anaesthetize the mandibular posterior teeth during dento-alveolar extraction procedure.