Two hundred permanent human canines (100 maxillary canines and 100 mandibular canines) were studied radiologically (50 maxillary canines: Group A-1 and 50 mandibular canines: Group A-2) and by decalcification and clearing method (50 maxillary canines: Group B-1 and 50 mandibular canines: Group B-2) as regards teh configuration and deviations of the root canals. Inradiological method the teeth were radiographed from two directions viz. mesiodistal and buccolingual. Group A-1: Type I canal configuration was observed in 98% and Type II in 2%. Root canals were straight in 46% and curved in 54% cases. Apical foramen was centrally located in 38% and laterally located in 62% cases. Accessory canals and apical deltas was observed in 18% each respectively. Group A-2: Type I canal configuration was observed in 18% and Type II, III and IV in 4% each. Root canals were straight in 53.84% and curved in 46.15% cases. Apical foramen was centrally located in 34.61% and laterally located in 65.38%. Accessory canals and apical deltas were observed in 15.28% each respectively. Group B-1: Type I canal configuration was observed in 98% and Type II in 2%. Root canals were straight in 44% and curved in 56% cases. Apical foramen was centrally located in 50% and laterally located in 50% cases. Accessory canals and apical deltas was observed in 10% each respectively. Group B-2: Type I canal configuration was observed in 70%, Type II in 12%. Type III in 6%, Type IV in 10% each and Type V in 2%. Root canals were straight in 60.71% and curved in 39.28% cases. Apical foramen was centrally located in 57.14% and laterally located in 42.85%. Accessory canals and apical deltas were observed in 16.07% each respectively. Since there can be wide variations in root canal configuration of permanent human canines. So more time should be devoted to study the radiographs so as to anticipate the canal configuration and deviations.

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The recently introduced bleaching technique, originally called Nightguard Vital Bleaching, but also referred to as Home Bleaching or Dentist Monitored Bleaching, has created resurgence in the area of bleaching, primarily because of relative ease of application of the materials, safety of the materials and the high percentage of success. The technique uses a custom fitting mouth tray for delivery of bleaching gel. This article provides a comprehensive and detailed description of a new, simplified, chair-side technique for fabrication of custom tray for the delivery of bleaching gel in the dentist-supervised home bleaching technique. It does not require vacuum – former for molding and adapting the thermoplastic tray material and relies on the commonly available material and equipments in the dental office. A thick mix of irreversible hydrocolloid impression material is used to mold and adapt the uniformly heated tray - forming material on the patient’s cast. The technique being inexpensive, simple, time saving and less technique sensitive is advantageous for both the patient and the dentist. This article intends to provide guidelines to the dental staff for chair - side fabrication of bleaching tray utilizing this new technique.

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A robot has often been though of as a machine that replaces human. These machines have been used in various areas like manufacturing, space exploration, deep sea navigation, nuclear fields/reactors, military etc. In medical field, they have been used as “surgical robots" in various medical specialties to extend and enhance human capabilities. Neuro-surgery, orthopaedics, ophthalmology, urology, general surgery, gynaecology, radiation oncology and many more fields including dentistry are relying on robotics for wide range of uses. Computers are all over the dental practice and growing exponentially in their no. and frequency of usage. Information networking, technological convergence and robotics are increasingly becoming important in the modern day world. Many question arise here: what exactly is the need of information technology and robotics and where in the dentistry they can be used? Which components are necessary for these new fields? What are their limitations and the future scope? An attempt to answer these questions has been done in this article. The authors first describe the teletreatment and then the efforts using robotics and its applications in the dental field.

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Conservative Class-II (MOD) preparations were made in 30 extracted human molars with one proximogingival margin on enamel and the others on cementum. All the preparations were restored with the same composite material utilizing bulk, horizontal, and oblique incremental insertion method and the teeth were sectioned and evaluated for dye penetration with standardized method. The purpose of this study is to compare the marginal leakage of class-II Light cured composite resin restorations with different insertion techniques.

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Aims and Objectives: To restore multiple fractured teeth in oral caity with composites in as restorative material and to show the role of composites in multiple fractured teeth. Material and Methodology: Materials utilized include P 60 & Z 100 of 3M, Universal tofflemeire matrix band and retainer parallel posts, glass ionomer lutting cements. Teflon coated instruments, rubberdam. Methodology: After analysis of all the teeth for fracture, impressions have been taken, teeth indicated for extraction are extracted teeth that are indicated for root canal treatment are opened and others temporarily sealed with GIC. Wax build up has been done and articulated on to a 3 point articulator and based on that, composite restorations are started. Parallel posts have been placed with luting cement in root canal treated teeth. After restoration of all the fractured teeth to their normal forms, final adjustments have been done according to the patients convenience. Conclusion: Dentists have witnessed substantial improvements in both materials and techniques in the present clinical scenario. The ideal way of restoration would be full metalceramic crowns for most of the teeth. But the condition of the patient and the economic factor has promoted to try this alternative way of restoring such teeth with posterior composites.

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Full text not available  [PDF]