El Marazky NI, Sabet NE And Gawdat SI,

ABSTRACT

Objectives: The Aim Of This Prospective Randomized Clinical Trial Was Compare Between 2% Mepivacaine And 4% Articaine For Inferior Alveolar Nerve Blocks In Patients With Symptomatic Irreversible Pulpitis In Mandibular Molars As Regards To Their Anesthetic Efficiency;during Access Cavity Preparation And Instrumentation.Subjects And Methods: Sixty-six Patients Diagnosed Clinically And Radiographically With Symptomatic Irreversible Pulpitis In Mandibular Posterior Teeth Received Single-visit Root Canal Treatment Using ProTaper Universal Rotary System For Canal Preparation, They Were Randomly Divided Into Two Groups (n=33) According To The Anesthetic Solution Used, Either Group M (3.6 Ml Mepivacaine Hydrochloride 2% With 1:100000 Epinephrine) Or Group A (3.4 Ml Articaine Hydrochloride 4% With 1:100000 Epinephrine). The Pain Was Assessed Using Numerical Rating Scale (NRS) During Access Cavity Preparation And Instrumentation, Then The Need For Supplemental Anesthesia Was Also Recorded.

Results: There Was No Statistically Significantdifference In Pain Level Between Both Groups At The Different Observation Times. The Success Rates Were Similar In Both Groups (54.5% And 63.4% In Mepivacaine And Articaine Groups Respectively) With No Difference In The Need For Supplemental Anesthesia In Both Groups.Conclusion: The Anesthetic Efficacyof Mepivacaine And Articaine Seemed To Be Similar, Although Both Did Not Provide Acceptable Rate Of Anesthetic Success.