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 Table of Contents  
Year : 2016  |  Volume : 7  |  Issue : 1  |  Page : 55-56

Custom fabrication of reinforced lithium disilicate ceramic ingot

Department of Prosthodontics, SRM Dental College, Ramapuram, Chennai, Tamil Nadu, India

Date of Web Publication29-Mar-2016

Correspondence Address:
Prof. Gopi Naveen Chander
496, 3rd Main Road, TNHB Colony, Velachery, Chennai - 600 042, Tamil Nadu
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0975-962X.179376

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A method of formulating a reinforcement lithium disilicate ceramic ingot was proposed. The ceramic ingot was broken manually with a mallet to finer particles. The sectioned ingot is ball milled along with 10% of nano zirconia by weight to obtain the desired powder. The reinforced powder is condensed in a 5 ml disposable syringe by powder slurry technique. The compacted ceramic were sintered at 900°C to obtain ceramic ingots. The reinforced ceramic ingots were used in pressable ceramic machines to obtain the desired advantages of zirconia reinforcement and pressable ceramic system.

Keywords: Lithium disilicate pellets, nano zirconia, zirconia reinforcement

How to cite this article:
Chander GN, Sasikala C, Mutukumar B, Dhanasekar N. Custom fabrication of reinforced lithium disilicate ceramic ingot. Indian J Dent 2016;7:55-6

How to cite this URL:
Chander GN, Sasikala C, Mutukumar B, Dhanasekar N. Custom fabrication of reinforced lithium disilicate ceramic ingot. Indian J Dent [serial online] 2016 [cited 2020 Oct 19];7:55-6. Available from: https://www.ijdentistry.com/text.asp?2016/7/1/55/179376

  Introduction Top

Dental ceramic is widely preferred indirect restorative material.[1] The clinical usage is enhanced with the ceramic advancements. Various modifications and techniques have been adapted to improve the strength of ceramic to increase its applications and has been well-documented.[2],[3],[4] Though increased application and newer material are available, the lacunae exist in enhancing the usability of conventional ceramics. This procedure describes a method of customizing a pressable ingot with reinforcement of nano zirconia particles to achieve better strength and increase the applications pressable ingots.

  Technique Top

  • Manually break the ceramic ingot into small particles with the mallet
  • Ten percentage nano zirconia particles were added to ceramic particles and ball milled for 24 h to obtain the desired ceramic particle size, and uniform manipulation of zirconia
  • Cut the center of a 5 ml disposable syringe (DISPOVAN; Hindustan Syringes & Medical Devices Limited, India) [Figure 1][5]
  • Combine the reinforced zirconia lithium silicate powder and modeling liquid (IPS Classic; Ivoclar Vivadent Inc.) to desirable consistency
  • Load the syringe with manipulated material and through the open-end
  • Condense the mixture mechanically through the open-end of syringe [Figure 2][5]
  • The packed material is removed and sintered in a ceramic furnace at 900°C to form an ingot [Figure 3]
  • The reinforced sintered ingot was used in the pressable ceramic machine (Programat EP 5000/G2; Ivoclar Vivadent Inc.).
Figure 1: Slicing of disposable syringe for ingot

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Figure 2: Compacting the ceramic material

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Figure 3: Sintered ceramic ingot

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  Discussion Top

The use of reinforced lithium disilicate ingot enhances its usage. The properties of reinforced ceramic porcelain are anticipated to increase because of the nano zirconia reinforcement.[6] The procedure adapted can be an additional step in fabricating procedure but this simplified technique enhances its applications. In addition, more analysis is essential to recognize the variations in the material properties of reinforced ingot caused due to the procedure in fabrication.

  Conclusion Top

A method of fabrication of reinforced ceramic ingot was elucidated. The technique can increase material properties and function.

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Conflicts of interest

There are no conflicts of interest.

  References Top

Lawson NC, Burgess JO. Dental ceramics: A current review. Compend Contin Educ Dent 2014;35:161-6.  Back to cited text no. 1
Griggs JA. Recent advances in materials for all-ceramic restorations. Dent Clin North Am 2007;51:713-27, viii.  Back to cited text no. 2
Hondrum S. A review of the strength properties of dental ceramics. J Prosthet Dent 1992;67:859-86.  Back to cited text no. 3
Nicola O, Ghitulica C, Andronescu E, Visan C, Vasile BS. Composite ceramics reinforced with zirconia nanopowders. Adv Mat Res 2008;47-50:1059-62.  Back to cited text no. 4
Chander GN, Mutukumar B, Sasikala C, Dhanasekar N. Emerging technology and techniques. Indian J Dent Res 2015;26:106-7.  Back to cited text no. 5
[PUBMED]  Medknow Journal  
Salata O. Applications of nanoparticles in biology and medicine. J Nanobiotechnology 2004;2:3.  Back to cited text no. 6


  [Figure 1], [Figure 2], [Figure 3]


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