title: Marginal fit of machine-milled titanium and cast titanium single crowns.
abstract: Eighteen type IV dental stone dies were fabricated from a metal master die that replicated a tooth prepared to receive a metal ceramic crown. They were divided into three groups according to the type of crowns to be made: (a) machine-milled, spark-eroded titanium crowns (Procera); (b) cast titanium crowns; and (c) noble alloy crowns (as the control). The control specimens showed the smallest mean marginal openings at 25 microns and were significantly different from both the machine-milled crowns (54 microns) and the cast titanium crowns (60 microns). The two types of titanium crowns were not significantly different from each other.
authors: Northwestern University Dental School, Chicago, Illinois.
authors: D
authors: D
authors: Leong
authors: J
authors: J
authors: Chai
authors: E
authors: E
authors: Lautenschlager
authors: J
authors: J
authors: Gilbert
mesh_terms: D000704:Analysis of Variance; D003442:Crowns; D003735:Dental Casting Technique; D018772:Dental Marginal Adaptation; D003775:Dental Polishing / Q000295:instrumentation* / Q000379:methods; D006047:Gold Alloys; D016876:Metal Ceramic Alloys; D014025:Titanium
chemical_list: D006047:Gold Alloys; D016876:Metal Ceramic Alloys; D014025:Titanium