Are Digital Models Replacing Plaster Casts?
نویسندگان
چکیده
منابع مشابه
Automatic 3D modeling of palatal plaster casts
This work introduces a procedure for automatic 3D modeling and discusses its performance in the context of a medical application, namely the 3D modeling of palate’s casts. The general interest of the proposed method lays in the fact that a widespread use of 3D modeling in non-engineering applications requires automatic procedures. The specific interest is in the intriguing mixture of open issue...
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PURPOSE Plaster casts can cause burns. Synthetic casts do not. Composite plaster-synthetic casts have not been thoroughly evaluated. This study analyzed the temperature from plaster casts compared with composite casts in a variety of in vitro conditions that would simulate clinical practice. METHODS A Pyrex cylinder filled with constant body temperature circulating water simulated a human ext...
متن کاملComparison of space analysis performed on plaster vs. digital dental casts applying Tanaka and Johnston's equation.
OBJECTIVE The purpose of this study was to compare dental size measurements, their reproducibility and the application of Tanaka and Johnston regression equation in predicting the size of canines and premolars on plaster and digital dental casts. METHODS Thirty plaster casts were scanned and digitized. Mesiodistal measurements of the teeth were then performed with a digital caliper on the pla...
متن کاملSeparation of overlapping dental arch objects using digital records of illuminated plaster casts
BACKGROUND Plaster casts of individual patients are important for orthodontic specialists during the treatment process and their analysis is still a standard diagnostical tool. But the growing capabilities of information technology enable their replacement by digital models obtained by complex scanning systems. METHOD This paper presents the possibility of using a digital camera as a simple i...
متن کاملAccelerated Drying of Plaster Casts with a Microwave Oven
Calcined gypsum (calcium sul phate hemihydrate, CaS04 1/2H20), commonly known as plas ter of Paris, is used extensively in forming casts to immobilize parts of the body and for making molds used in the manufacture of orthotic and prosthetic devices. Plaster models and casts have several advantages, and a few disadvantages. Widely available, plaster is inert, sufficiently stable dimensionally,...
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ژورنال
عنوان ژورنال: Dentistry
سال: 2011
ISSN: 2161-1122
DOI: 10.4172/2161-1122.1000e102