It is fairly common to remove a severely compromised tooth and provide rehabilitation by means of an implant. Resorption of alveolar bone after extraction resulting in loss of bone height and width is an unpleasant sequelae causing difficulty in implant placement. Few procedures have been promoted to attain the required bone height and width, such as guided bone regeneration socket preservation with the use of various graft materials and barrier membranes. The disadvantages of these techniques are some amount of ridge height loss and loss of buccal/facial, ridge contour. The socket shield technique is a new method where a buccal segment of root is retained as a shield, which aids in retaining periodontal ligament on buccofacial aspect. The implant is placed (immediate placement) lingual to this shield. This maintains the alveolar ridge height and buccofacial contour, thus providing superior aesthetics. This case report shows placement of an implant in upper anterior region using this technique.
Aim:
The aim of the research was to develop a model that accurately represents an Aramany class I defect and its obturator prostheses fabricated with cobalt–chromium alloy and titanium alloy to compare the deflection and the stress distribution in the rehabilitated area.
Materials and Methods:
Aramany class I defect and the obturator prostheses were generated geometrically using ANSYS 14.5; both were superimposed on each other to mimic the prostheses and the maxilla as one unit. Meshing of models was carried out using hypermesh software and materialistic properties were assigned. The 120 newton load was constituted on the teeth in different directions.
Statistical Analysis Used:
Statistical analysis of Finite element was not possible. Self-explanatory decoding results in the software were used.
Results:
The stress distribution and deflection executed by ANSYS provided results that enabled the tracing of Von Mises stress and deflection field in the form of color-coded bands with values in mega pascal.
Conclusions:
The study shows that Von Mises stresses are higher for the frame work fabricated with cobalt–chromium alloy compared to titanium alloy. The framework made of titanium alloy showed more deflection than cobalt–chromium alloy.
Purpose/objectivesThe aim of the research was to develop a model that accurately represents an Aramany class II defect and its obturator prostheses fabricated with Cobalt Chromium alloy & Titanium alloy to compare the deflection and the stress distribution in the rehabilitated area.MethodsAramany class II defect and the obturator prostheses was generated geometrically utilizing ANSYS 14.5, both overlaid on each other to impressionist prostheses and the maxilla as one element. Meshing of models was carried out utilizing HYPERMESH software & materialistic properties were assigned. The 120 N load was constituted on the teeth in different directions.ResultsThe stress distribution & deflection executed by ANSYS provided results that enabled the tracing of Von Mises stress and deflection field in the form of color veiled bands with standards in Mega Pascal (MPa).ConclusionThe study shows that Von Mises stresses are higher for the frame work fabricated with cobalt chromium alloy compared to Titanium alloy. The framework made of titanium alloy showed more deflection than cobalt chromium alloy.Clinical implications3D FEA can be performed on a computer without putting any stress on the human body from technical materials, which is especially difficult for maxillectomy patients.
Currently, COVID-19 is unquestionably becoming a universal problem and for the predictable forthcoming. It has aroused an alarm concerning the spread and infects humans worldwide. In COVID-19, Olfactory and taste disorders (OTDs) are newly testified disorders and have been hypothesized that oral and nasal tissues possibly encompass host cells of SARS-CoV-2. Researchers have concluded that hyposmia or anosmia (decrease or loss of smell) and ageusia (loss of taste) is a key indicator that a person who else gives the impression that he is healthy is carrying the virus and possibly be spreading it to others. Hereby, this article gives an insight review of these indicators.
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.