An overview of in vitro abrasive finishing &amp; CAD/CAM of bioceramics in restorative dentistry

Yin, Ling; Song, Xiaofei; Song, Ya-Li; Huang, Tai-Qin; Li, J.

doi:10.1016/j.ijmachtools.2005.07.045

Cited by 99 publications

(74 citation statements)

References 76 publications

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“…Modern dental restoration started to take off with the development of high performance ceramics at the end of the 1990s and intensified substantially with the development of CAD/CAM -techniques [3,[7][8][9][10]. Today, different routes for processing are employed by the industry for all ceramic dental restoration [1,3,[11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

A multi technique study of a new lithium disilicate glass-ceramic spray-coated on ZrO2 substrate for dental restoration

Möncke¹,

Ehrt²,

Πάλλες³

et al. 2017

Biomedical Glasses

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A multi technique study of a new lithium disilicate glass-ceramic spray-coated on ZrO 2 2 2 substrate for dental restoration https://doi.org/10.1515/bglass-2017-0004 Received May 05, 2017 revised Jul 07, 2017; accepted Aug 09, 2017 Abstract: An alkali niobate-silicate veneer ceramic for ZrO 2 -based dental restoration was developed and characterized for its physical properties and structure. The properties were adjusted for dental applications. The new lithium disilicate glass-ceramic VBK (sold as cerafusion or LiSi) can easily be applied by spray coating to any individually formed ZrO 2 -matrix and needs only one final tempering treatment. The surface of the glass-ceramic is very smooth. The color of the already translucent glass-ceramic can be adjusted to that of individual natural teeth. The structure of the glass-ceramic was studied by XRD and Raman spectroscopy as a function of heat-treatment and of spatial variations within the material and at its interfaces. ToF SIMS, SEM and thermal analysis techniques were applied to investigate the crystallization behavior and surface-interface reactions. XRD and Raman spectroscopy identified different crystalline phases in the amorphous glass matrix including Li 2 Si 2 O 5 , Li 2 SiO 3 , NaxLi (1−x) NbO 3 and Na 3 NbO 4 . The Raman spectrum of the amorphous matrix is dominated by the vibrational activity of the highly polarizable niobate units with a prominent feature at 865 cm −1 , assigned to Nb-O stretching in NbO 6 octahedra, which have non-bridging oxygen atoms and are connected to the silicate matrix rather than to other niobate polyhedra.

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Section: Introductionmentioning

confidence: 99%

A multi technique study of a new lithium disilicate glass-ceramic spray-coated on ZrO2 substrate for dental restoration

Möncke¹,

Ehrt²,

Πάλλες³

et al. 2017

Biomedical Glasses

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“…dental technician and dentist. In that respect, extensive research was performed by Yin et al [13][14][15][16][17][18][19] reporting on edge chip damage of several dental ceramics created by grinding with diamond burs under controlled pressure, feed rate, grit size (180, 40, 10 m) and water coolant. Her findings indicated that the average chip width decreased with the fracture toughness of the ceramic material except for a glass-infiltrated alumina.…”

Section: Results 3y-tzp Wasmentioning

confidence: 99%

Grinding damage assessment on four high-strength ceramics

et al. 2016

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d e n t a l m a t e r i a l s 3 2 ( 2 0 1 6 ) [171][172][173][174][175][176][177][178][179][180][181][182] Available online at www.sciencedirect.com ScienceDirect j o u r n a l h o m e p a g e : w w w . i n t l . e l s e v i e r h e a l t h . Conclusions. Reshaping a ceramic framework post sintering should be avoided with final diamond grits of 75 m as a general rule. For alumina and the glass-infiltrated alumina, using a 54 m diamond still induces chip damage which may affect strength. Removal of such damage from a reshaped framework is mandatory by using sequentially finer diamonds prior to the application of veneering ceramics especially in critical areas such as margins, connectors and inner surfaces.

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“…Prior to sand milling of glass-ceramic blocks, they were cut from glass-ceramic rods to a size of 10×12×15 mm 3 and ground with grit size 8.4 µm of SiC paper. Consequently, they were then adhered to stainless steel abutments by Super-Bond C&B which is a self-cure dental adhesive resin cement 21) .…”

Section: Cad/cam Fabricationmentioning

confidence: 99%

“…Computer aided design and computer aided manufacturing (CAD/CAM) technology provides dentists with the ability to do this for the often complex shapes of these restorative dental ceramics. This technology is replacing the traditional lost wax casting technique with a resultant decrease in manufacturing time 3) . CAD/CAM systems, however, utilize abrasive (grinding and milling) processes, and therefore, ceramics used with this technique need to possess excellent machinability 3) .…”

Section: Introductionmentioning

confidence: 99%

“…This technology is replacing the traditional lost wax casting technique with a resultant decrease in manufacturing time 3) . CAD/CAM systems, however, utilize abrasive (grinding and milling) processes, and therefore, ceramics used with this technique need to possess excellent machinability 3) . Currently, most restorative ceramic materials used with CAD/CAM systems are based on leucite (K2Al2Si4O12).…”

Section: Introductionmentioning

confidence: 99%

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Machinable glass-ceramics forming as a restorative dental material

et al. 2011

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MgO, SiO2, Al2O3, MgF2, CaF2, CaCO3, SrCO3, and P2O5 were used to prepare glass-ceramics for restorative dental materials. Thermal properties, phases, microstructures and hardness were characterized by DTA, XRD, SEM and Vickers microhardness. Three-point bending strength and fracture toughness were applied by UTM according to ISO 6872: 1997(E). XRD showed that the glass crystallized at 892°C (second crystallization temperature+20°C) for 3 hrs consisted mainly of calcium-mica and fluorapatite crystalline phases. Average hardness (3.70 GPa) closely matched human enamel (3.20 GPa). The higher fracture toughness (2.04 MPa√m) combined with the hardness to give a lower brittleness index (1.81 µm −1/2 ) which indicates that they have exceptional machinability. Bending strength results (176.61 MPa) were analyzed by Weibull analysis to determine modulus value (m=17.80). Machinability of the calcium micafluorapatite glass-ceramic was demonstrated by fabricating with CAD/CAM.

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An overview of in vitro abrasive finishing & CAD/CAM of bioceramics in restorative dentistry

Cited by 99 publications

References 76 publications

A multi technique study of a new lithium disilicate glass-ceramic spray-coated on ZrO2 substrate for dental restoration

A multi technique study of a new lithium disilicate glass-ceramic spray-coated on ZrO2 substrate for dental restoration

Grinding damage assessment on four high-strength ceramics

Machinable glass-ceramics forming as a restorative dental material

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