Authors : K. Taheritalesh , J. Yazdani , M. Ghavimi and E. Khashabi
Abstract: Performing an efficient and safe anesthesia is a basic principle in nearly all of the dental procedures. In posterior mandible current infiltration techniques, as in the upper jaw, are not applicable because of dense cortical bone so dentists necessarily use Inferior Alveolar Nerve Block (IANB) which has many potential side effects like trismus, temporary paralysis of facial nerve. In this study, the Crestal Anesthesia (CA) was assessed both clinically and by CT scan for its efficacy and side effects. A combination of an opaque material (Ultravist®) and lidocaine 2% was used to study the route of anesthetic solution. The combination was primarily injected in rabbit gingival tissue and was followed up regularly for 2 weeks to assess any possible injury. After confirming its safety, a combination of these materials was injected to volunteers to assess efficacy and diffusion route. A total of 69 patients (37 female, 32 male) with matched bilateral posterior teeth in mandible were selected randomly and an IANB and CA was performed randomly and separately in different sessions for the contralateral teeth. The onset of anesthesia, anesthesia duration, pain, blood pressure and pulse rate, bleeding quantity and consumed anesthetic solution was recorded for each technique and data were analyzed using paired t-test with SPSS 10.0 for Windows. CA had a significant advantage over the IANB in pain, onset of anesthesia, bleeding quantity, pulse rate and the consumed anesthetic solution (p<0.05). Instead, IANB produced significantly longer anesthesia (p<0.05). CA could be considered as a reliable and safe primary injection for mandibular exodontia.
K. Taheritalesh , J. Yazdani , M. Ghavimi and E. Khashabi , 2009. Crestal Anesthesia: An Efficient, Fast and Reliable Technique in Posterior Mandibular Exodontia; a Case-Control Clinical and CT Scan Assessment. Research Journal of Biological Sciences, 4: 369-374.