Accession Number : AD1036905


Title :   Comparison Of Internal Adaptation Of Fixed Restorations Fabricated From Four Different Materials By A Three Axis Mill


Descriptive Note : Technical Report


Corporate Author : Uniformed Services University of the Health Sciences Bethesda United States


Personal Author(s) : Rasmussen,Bryan P


Full Text : https://apps.dtic.mil/dtic/tr/fulltext/u2/1036905.pdf


Report Date : 26 Jun 2016


Pagination or Media Count : 44


Abstract : Introduction: Internal adaptation is the space between the restoration and tooth preparation. Nakamura reported the closer the adaptation between a ceramic restoration and its abutment, the greater a crown's resistance to fracture. Ideal internal adaptation is as minimal as possible while still allowing for complete seating of the restoration. Objective: This study compared the internal adaptation of maxillary anterior crowns milled from four different materials on a 3-axis milling machine. It was hypothesized there would be no difference between the test groups.


Descriptors :   dental materials , dentistry , computeraided design , mechanical working , prostheses and implants , modulus of elasticity , teeth , resilience , polymethyl methacrylate , mechanical properties , flexural strength , crack propagation , ceramic materials , thermal expansion , porcelain , fabrication


Subject Categories : Medicine and Medical Research


Distribution Statement : APPROVED FOR PUBLIC RELEASE