Aim:The aim of the present study was to compare the canal transportation and centering ability of Rotary ProTaper, One Shape and Wave One systems using cone beam computed tomography (CBCT) in curved root canals to find better instrumentation technique for maintaining root canal geometry.Materials and Methods:Total 30 freshly extracted premolars having curved root canals with at least 10 degrees of curvature were divided into three groups of 10 teeth each. All teeth were scanned by CBCT to determine the root canal shape before instrumentation. In Group 1, the canals were prepared with Rotary ProTaper files, in Group 2 the canals were prepared with One Shape files and in Group 3 canals were prepared with Wave One files. After preparation, post-instrumentation scan was performed. Pre-instrumentation and post-instrumentation images were obtained at three levels, 3 mm apical, 3 mm coronal and 8 mm apical above the apical foramen were compared using CBCT software. Amount of transportation and centering ability were assessed. The three groups were statistically compared with analysis of variance and Tukey honestly significant.Results:All instruments maintained the original canal curvature with significant differences between the different files. Data suggested that Wave One files presented the best outcomes for both the variables evaluated. Wave One files caused lesser transportation and remained better centered in the canal than One Shape and Rotary ProTaper files.Conclusion:The canal preparation with Wave One files showed lesser transportation and better centering ability than One Shape and ProTaper.

Background:Antibiotics are important in the management and prophylaxis of infections in patients at a risk of experiencing microbial disease. Uses of systemic antibiotics in dentistry are limited since management of acute dental conditions is primarily based upon extraction of teeth or extirpation of the pulp. However, the literature provides evidence of inappropriate prescribing practices by practitioners, due to a number of factors from inadequate knowledge to social factors.Aim:The aim was to assess the therapeutic prescription of antibiotics in the dental office.Materials and Methods:In the current study, 42 faculty members of two dental colleges in the same vicinity were included. A questionnaire was drafted and sent to the dentists to collect data pertaining to the conditions in which antibiotics were prescribed and most commonly prescribed antibiotic.Results:During the study period, 42 faculty members from various departments in the institutes were surveyed, of which 41 questionnaires were completely filled. Amoxicillin was the most commonly prescribed antibiotic followed by other amoxicillin combinations; Metronidazole was most widely prescribed antibiotic for anaerobic infections.Conclusion:We have entered an era where cures may be few due to increasing microbial resistance. The biggest force for change will be if all practicing dentists looked at their prescribing and made it more rational.

HPV type 16, 18, and co-infection of both types showed high prevalence in oral squamous cell carcinoma.The prevalence of HPV type 18 was found to be higher than HPV type 16 and co-infection in oral leukoplakia. It was observed that the tongue and palate lesions in the oral squamous cell carcinoma patients showed high prevalence of HPV type 16, type 18, and co-infection compared with other sites.

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Three-dimensional imaging, particularly cone-beam computed tomography (CBCT), has made significant contributions to the planning and placement of implants of missing tooth or at immediately removed tooth. The accuracy of CBCT data can be used to fabricate a surgical guide that transfers the implant planning information to the surgical site to facilitate implant placement. Prosthetically driven implant prosthesis assures good aesthetics, function and more importantly hygiene maintenance enabling long time success. Accuracy in treatment planning and implementation of planned treatment is vital for this success. Here we describe a method for applying CBCT data to aid in the planning and placement of implant using CBCT data to aid in planning and placement of Missing and immediate extracted tooth implant.

Dentigerous cyst is the second most common developmental odontogenic cyst affecting 0.91-7.3% of population and always associated with an impacted tooth. They are commonly found associated with the lower third molars followed by the upper canines, lower premolars, and upper third molars. 1 The current treatment protocol for treatment is surgical enucleation or marsupialization followed by surgical enucleation with extraction of an associated tooth. Three-dimensional (3D) printing is an industrial revolution, in which 3D models of any object are constructed using images obtained via MRI and CT. 2 The procedure uses materials like plastic or metal, which are deposited layer by layer to prepare model. In the medicine, 3D printing has been growing from assistance in diagnosis to surgical applications and used widely for replacement of malfunctioning tissues and organs, customization of prosthesis, manufacturing of surgical implants and anatomical models for surgical diagnosis and planning. 3 This case report highlights the effective usage of 3D printing as an aid in the surgical removal of dentigerous cyst and impacted canine in mandibular anterior region. This is an Open Access (OA) journal, and articles are distributed under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike 4.0 License, which allows others to remix, tweak, and build upon the work non-commercially, as long as appropriate credit is given and the new creations are licensed under the identical terms.

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