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INTRODUCTION Infiltration anesthesia is a common method used to anesthetize maxillary teeth. However, only recently has infiltration with an articaine formulation been used to anesthetize mandibular first molars. 1 – 4 In 2000, articaine was introduced in the United States. 5 Haas and colleagues 6 , 7 compared infiltrations of 4% articaine and 4% prilocaine formulations in the mandibular canines and second molars. They found no statistical differences between the 2 anesthetic formulations. Success rates (achieving a pulp test

mucosa along the medial aspect of the left mandible (arrow). Figure 2. Bony sequestrum (2 pieces) exfoliated from the ulcerated mucosal lesion shown in Figure 1 . Figure 3. Computed tomography scan obtained 1 month after symptoms began, demonstrating large bilateral mandibular tori (arrows), a likely predisposing factor to the osteonecrosis that occurred after direct laryngoscopy

infiltration anesthesia action in EPFI decreases by half compared within NEPF, even if the anesthetic was infiltrated at a double dose. However, it is uncertain why the action of infiltration anesthesia is reduced markedly in EPFI. The aim of this study was to assess the lidocaine concentration in mandibular bone after subperiosteal infiltration (infiltration) anesthesia under several surgical conditions, ie, presence or absence of periosteal flap, and presence or absence of saline irrigation. METHODS Subjects This study was

investigation was to study the effects of N 2 O/O 2 on IANB injection pain and mandibular pulpal anesthesia success in asymptomatic subjects with normal healthy teeth. MATERIALS AND METHODS A total of 105 subjects 18 years and older and in good health (American Society of Anesthesiologists [ASA] class I or II) as determined by a health history and oral questioning were included in the study. Exclusion criteria included subjects younger than 18 years, allergy to local anesthetics or nitrous oxide, a history of significant medical problems (ASA III

Profound anesthesia is an essential component of effective endodontic treatment. However, failure to provide apt anesthesia, especially in mandibular molars, is common, owing to physiologic, anatomic, and psychological factors as well as operator and technical aspects. 1 Delivering profound anesthesia in molars with symptomatic irreversible pulpitis (SIP) and/or symptomatic apical periodontitis can be challenging. 2 The success rate of inferior alveolar nerve block (IANB) for ensuring adequate pulpal anesthesia in mandibular molars with SIP is low. 3

Introduction The inferior alveolar nerve block (IANB) is the most frequently used injection technique for achieving local anesthesia for mandibular restorative and surgical procedures. However, the IANB does not always result in successful pulpal anesthesia. 1 – 17 Failure rates of 7 to 75% have been reported in experimental studies. 1 – 17 Therefore, it would be advantageous to improve the success rate of the IANB. Meechan et al 18 have shown that buccal or buccal plus lingual infiltrations of 1.8 mL of 2% lidocaine with 1 : 100

Placement of a nasogastric tube (NGT) preoperatively for decompression of the stomach is common practice to allow drainage of gastrointestinal contents in the case of bowel obstruction, or in other cases when the patient is at risk of aspiration for some other reason. This case report involves a patient who required aspiration precautions via NGT placement for mandibular surgery due to facial trauma; the NGT was later found to be misplaced in the left main stem bronchus as the misplacement was unrecognized intraoperatively. We discuss the