Sirichai Kiattavorncharoenศิริชัย เกียรติถาวรเจริญPattamawan Manosuthiปัทมวรรณ มโนสุทธิNatthamet Wongsirichatณัฐเมศร์ วงศ์สิริฉัตรKiatanant Boonsirisethเกียรติอนันต์ บุญศิริเศรษฐMahidol University. Faculty of Dentistry. Department of Oral & Maxillofacial Surgery2015-02-252016-12-272015-02-252016-12-272015-02-182013-09Kiattavorncharoen S, Manosuthi P, Wongsirichat N, Boonsiriseth K. The anesthesia efficacy of intraosseous injection with QuickSleeper® and conventional injection in the lower third molar surgery. M Dent J. 2013; 33(3): 137-43.0125-5614 (printed)https://repository.li.mahidol.ac.th/handle/20.500.14594/1057Objective: This study aimed to compare the efficacy of anesthesia between QuickSleeper® and conventional injection in the lower third molar surgery. Materials and methods: The study with a simple blind prospective study was comprised 12 females and 14 males with age range 20-25 years (mean age of 21 years). The subjects underwent a total of 52 anesthetic procedures. Each patient was subjected to two anesthetic techniques :conventional injection and intraosseous injection using the QuickSleeper® system. A split-mouth design with a month washout period was adopted in which each patient underwent treatment of lower third molar surgery. Results: The profoundness of anesthesia by QuickSleeper® and conventional technique are 30.7% and 92.3%, respectively. Pain assessment during injection was 2.7±2.2 for QuickSleeper® and 2.8±2.5 for conventional technique, the difference being not statistically significant. Pain assessment during surgery was 5.2±3.0 for QuickSleeper® and 2.5±2.7 for conventional technique, the difference being statistically significant. Pain assessment after surgery was 1.8±2.4 for QuickSleeper® and 1.8±2.2for conventional technique, the difference being not statistically significant. Conclusion: The efficacy of anesthesia from QuickSleeper® is lower than conventional injection in the lower third molar surgery.engMahidol UniversityQuickSleeper®InjectionInferior alveolar nerve blockLocal anesthesiaConventional nerve blockIntraosseous injectionLower third molar surgeryOnset & durationProfoundnessElectric pulp testerIntraoral pain assessment deviceOpen Access articleวิทยาสารทันตแพทยศาสตร์มหิดลMahidol Dental JournalArticleFaculty of Dentistry Mahidol University