Cementation of vented crowns with low deformation.

@article{Wilson1996CementationOV,
  title={Cementation of vented crowns with low deformation.},
  author={P. Wilson},
  journal={Australian dental journal},
  year={1996},
  volume={41 1},
  pages={
          28-32
        }
}
  • P. Wilson
  • Published 1 February 1996
  • Materials Science, Medicine
  • Australian dental journal
Crown deformation during cementation was measured with a circumferential strain gauge. The effects of different seating forces (3, 10 and 25 N), three different cements (Phosphacap, Ketac-cem Applicap and Fuji-cap I) and the presence or absence of venting on deformation and seating discrepancy were investigated. Forty microns of cement space was provided for all experiments. Venting increased deformation and reduced seating discrepancy, whilst increased force increased deformation and decreased… 
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The vented crown: a pictorial case report.
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  • 2013
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Varios procedimentos tem sido propostos para facilitar o assentamento e diminuir o desajuste, como: alivio dos troqueis previamente ao enceramento de coroas (JORGENSEN 1960; CARTER & WILSON, 1996 e

References

SHOWING 1-10 OF 15 REFERENCES
Deformation of vented crowns with fluids of differing viscosities.
  • P. Wilson
  • Materials Science, Medicine
    Australian dental journal
  • 1993
TLDR
The advisability of venting of full crown restorations is questioned when high viscosity cements are used, and methods of increasing axial wall separation are recommended.
Deformation of crowns during cementation.
TLDR
It is suggested that low viscosity cements, low seating forces, and die spacing be used to decrease the deformation of crowns during seating to explain several clinical phenomena.
Low force cementation.
  • P. Wilson
  • Materials Science, Medicine
    Journal of dentistry
  • 1996
TLDR
The amount of force required to allow maximum seating of cast crowns appears to be cement specific, and is reduced by effective venting procedures.
The effect of venting on the strength of Dicor and Hi-Ceram ceramic crowns.
: Research has shown that external venting improves the marginal fit of cast crowns by decreasing hydrostatic pressure during seating. In turn, improving marginal fit has been shown to increase the
The effect of die spacing on crown deformation and seating time.
  • P. Wilson
  • Materials Science, Medicine
    The International journal of prosthodontics
  • 1993
TLDR
A machined brass crown, onto which a strain gauge had been attached, was filled with a silicone fluid and placed on various dies to simulate luting using zinc phosphate cement and increased the axial space but did not affect the strain recorded for a given load.
The effective minimum cement thickness of zinc phosphate cement for luted non-precious crowns.
TLDR
Cementation with a load of 10 kg gave rise to an average crown elevation of 54 micron and a range of measurements between -8 and 113 micron, and the effective minimum cement thickness corresponding to this average was calculated to be 4.7 micron.
Effect of internal relief, vibration, and venting on the vertical seating of cemented crowns.
TLDR
Vibration, applied horizontally, had no effect by itself or any interaction with venting or internal crown relief, and venting and internal relief alone effectively achieved good seating.
Effect of venting on cast gold full crowns.
TLDR
This study underlines the difficulties involved in using an explorer and radiographs to evaluate a subgingival margin after cementation of a cast restoration and recommends a procedure that can be accomplished at the chair with a minimum of time and equipment to improve the marginal adaptation of full-crown castings.
Optimal cement space for resin luting cements.
  • J. C. Wu, P. Wilson
  • Materials Science, Medicine
    The International journal of prosthodontics
  • 1994
TLDR
Stainless steel dies, simulating 0 to 80 microns of die spacing, were seated into a machined brass crown with Phosphacap, Panavia EX, and C & B Metabond to determine the optimal cement space for best seating for each agent.
An investigation of dental luting cement solubility as a function of the marginal gap.
TLDR
The purpose of this study was to investigate the rate of type I zinc phosphate cement solubility as it relates to the degree of marginal opening and the effects of convective forces on cement dissolution in a dynamic environment.
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