- CQ does not become a part of the polymer network, suggesting that CQ can be leached out into surrounding environment including dental pulp and exert adversary effects on tissues.
- CQ treatment increases the levels of proinflammatory cytokines (eg, interleukin 6, interleukin 8, and matrix metalloproteinase-3 [MMP3].
- CQ also inhibits odontogenic differentiation and mineralization capacities of DPSC and MC3T3-E1 cells.
- CQ may trigger pulpal inflammation.
- Yellow coloured CQ influences the colour of the composite.
- Amines (Part of the CQ structure) also form by-products during photoreaction and can tend to cause yellow or brownish discolourations under the influence of heat or light.
- The researchers tried to solve the CQ's aesthetics, biocompatibility and toxicity issues, so that they decided to substitute the "simple amines" with polymeric or macromolecular amines.
- CQ can be replaced by polymeric radical photoinitiators carrying the photosensitive CQ groups in the side chain.
- Acylphosphine oxides such as Lucirin TPO are the most common available used commercial products.
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:: World Of Dentistry :: TEAM
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