The goal of this clinical trial is to compare the efficacy of bupivacaine and ropivacaine in third molar removal surgery under general anesthesia in healthy volunteers. The main question aims to determine whether there is any difference in vital signs, hemostasis and postoperative pain between ropivacaine and bupivacaine in patients undergoing third molars extraction under general anesthesia.
Researchers will compare bupivacaine and ropivacaine in a split-mouth study to determine if one drug is more effective in third molar extraction surgery under general anesthesia (better hemostasis, less postoperative pain, and fewer changes in vital signs). Participants will undergo a single surgical procedure and complete the Visual Analog Scale to record postoperative pain
Patients aged 18 to 60
Patients ASA Physical Status Classification I and II
Patients with impacted or semi-impacted lower third molars with similar positioning on both sides according to the Pell and Gregory classification
Patients who can have surgery under local anesthesia
Patients where more procedures are required in the same surgical session
Single group
Bupivacaine 0,5%
DrugInjection of bupivacaine 0,5% in group A
Ropivacaine 0,75%
DrugInjection of ropivacaine 0,75% in group B
Evaluate if there is a significant difference between groups in postoperative analgesic capacity using Visual Analog Scale, intraoperative hemostasis and in vital signs during anesthesia.
The Visual Analog Scale (0-10 VAS) can be interpreted as no pain (0), mild (1-3), moderate (4-6),severe (7-9),or worse pain (10)
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Henrique Tedesco
Lead sponsor
Federal University of Rio Grande do Sul
Sponsor institution
