No abstract

A bullet encountered as a foreign body in the sphenoid sinus is a rare occurrence. We report a case of a bullet impacted in the sphenoid sinus following a firing assault from point blank range. The bullet was safely removed with the assistance of an endoscope preserving the structures around the sphenoid sinus. Adequate knowledge of the anatomical variations with regard to the sphenoid sinus is essential to ensure safe removal of foreign bodies, thereby avoiding catastrophic complications. We believe that endoscopic foreign body removal should be advocated more often, rather than open approaches, for foreign bodies impacted beyond the sphenoid sinus involving the anterior skull base.

Intra-radicular rehabilitation is a procedure in which the root canals with very little remaining dentin thickness are strengthened by the use of such material that bonds and reinforces the root structure. In this case report, intra radicular rehabilitation with the use of seventh generation bonding agent and flowable composite is described and discussed as a treatment approach for the restoration of a thin fragile root. The procedure provides for an extended clinical application of the all-in-one bonding agent resulting in conservative, reliable treatment approach for the treatment of compromised root canals due to variety of reasons

In case of failed root canal treatment endodontic retreatment of the root canal system is necessary. The aim of the present study was to compare the gutta-percha removal with Protaper retreatment files (Dentsply Maillefer, Ballaigues, Switzerland), K3 (SybronEndo) and Hero Shapers (MicroMega, Besancon, France). Method: Thirty freshly extracted human single rooted teeth were prepared with ProTaper rotary instruments up to file F3 andfilled with 30 # GP cones and AH plus sealer. The teeth were then stored for 1 week. The teeth were divide into 3 retreatment groups (n=10). The gutta-percha was removed using Protaper retreatment files, K3 and Hero Shapers. Teeth were then evaluated using radiographs. Results: Comparing the ratio between clean canals Protaper and K3 showed better debris removal as compared to Hero shaper. But no significance difference was found.

External invasive root resorption may occur as a consequence of trauma, orthodontic treatment, intracoronal bleaching and surgical procedures and may lead to the progressive and destructive loss of tooth structure. Depending on the extent of the resorptive process, different treatment regimens have been proposed. A 20-year-old female patient presented with tooth showing signs and symptoms of pain in 21 with extensive invasive resorption in middle third of root canal. After root canal treatment, The resorption area was chemomechanically debrided using ultrasonic tips and irrigant solution. MTA was used to fill the resorptive defect and the coronal access was temporarily sealed. Radiographs at 3 and 12 months showed adequate repair of the resorption and endodontic success. Clinically, the tooth was asymptomatic and found to be functioning well.