A Comparative Evaluation of Conventional Vs Accelerated Casting Technique, as Regards Marginal Fit and Surface Roughness

Tandon, Dr. Koshika; Singh, Ajay; Chandra, Sumi

doi:10.9790/0853-131010610

Cited by 2 publications

(1 citation statement)

References 7 publications

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“…Similarly, dimensional accuracy by comparison of different die materials has good response by using AM technology [30,31]. Surface finish is also a considerable factor in the cast restoration margin evenness/ fineness [32,33]. In dentistry the dental casting alloys are classified mainly into high noble alloys (gold and platinum), noble alloys (silver, gold and copper) and base metal alloys (Ni-based, Co-based and Ti-based).…”

Section: Introductionmentioning

confidence: 99%

Partial dentures by centrifugal casting assisted by additive manufacturing

Singh

2019

Sādhanā

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This research work focuses on preparation of partial dentures (as functional prototypes) by additive manufacturing (AM)-assisted centrifugal casting (CC). The master pattern for partial dentures was prepared on fused deposition modelling (FDM) set-up (established by AM technique at low cost). The final dentures as functional prototypes were prepared with a nickel-chromium (Ni-Cr)-based alloy by varying different proportions of Ni% (N) by weight %. The other input parameters were powder to water P/W ratio (W) and pH value (H) of water used for mixing the investment. The samples prepared were ascertained for dimensional deviation (Dd), surface finish (R a ) and micro-hardness (HV) as output parameters. Finally, multifactor optimization has been applied on output parameters of functional prototypes prepared. This study highlights that partial denture prepared with W-100/15, H-7 and N-61% gives overall better results from mechanical properties and dimensional accuracy viewpoint. The results are also supported by photo-micrographic analysis.

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