Double-casting method for fixed prosthodontics with functionally generated path
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1Department of Removable Prosthodontics, Okayama University Dental School, Japan.
Statement Of Problem:
The construction of precise fixed prostheses that are harmonious within the stomatognathic function has been regarded as a critical requirement for successful oral rehabilitation. However, techniques for construction have been unsuccessful in producing a prosthesis that can be inserted without intraoral occlusal adjustment.
Purpose:
In this study, a new method of constructing a precise prosthesis that requires limited occlusal adjustment at the final seating is described.
Material And Methods:
The precision of this method was compared with a conventional method. Fourteen artificial crowns were fabricated on an experimental abutment by using both double-casting and conventional methods. The distances between the cusp tips and occlusal surfaces of the abutments, which were measured on wax/resin patterns and resultant crowns, were recorded to estimate clinical error for each method.
Results:
Error for the double-casting method was markedly less than the conventional method. This study demonstrated that a new double-casting method was precise and sufficiently reliable for clinical application.
