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ePaper created 2018-02-16, 10:54:19 | version 1.38.0
| industry report effectiveness of the professional home whitening Evaluation of the effectiveness of the professional home whitening with the new ENA White 2.0 Analysis of results measured with spectrometer 6 months after treatment Author: Dr Irene Franchi, Italy Introduction The ideal smile has always been considered as an ex- pression of health and beauty.1, 2 The Romans conse- crated the tradition of having teeth that were white in colour and perfect in shape; Patrician women used to try to bleach their teeth by rubbing them with tis- sues soaked in urea-based natural mixtures. According to some recent statistics,3 about 50 per cent of the world population are not satisfied with the colour of their own teeth, and adopt all the pos- sible methods to make them whiter and brighter, just like all advertising models suggest. surface of the tooth and is of exogenous nature as it is caused by external agents (e.g. food, drinks, plaque, tartar, smoke, products with chlorhexidine) and can be easily eliminated by using a specific toothpaste and professional abrasive techniques. Intrinsic discolouration is caused by a deposit of pigments in the organic or mineral structure of the tooth, accumulated during the development and/or the mineralisation of dental germs; specific prod- ucts or appropriate techniques are required to solve them. From a chemical point of view, bleaching means the destruction of the chromophore groups in the organic and inorganic compounds.1 Table 1: Arithmetic mean of chroma, hue and value of the treated elements of the selected study group. Discolouration is a very important aesthetic prob- lem: extrinsic discolouration affects the external Through a chemical reaction of oxide reduction, the bleaching agent can discolour a substratum ARITHMETIC MEAN OF CHROMA, HUE AND VALUE PATIENT N. 1 tooth element 11 cervical third middle third incisal third tooth element 21 cervical third middle third incisal third tooth element 12 cervical third middle third incisal third tooth element 13 cervical third middle third incisal third tooth element 22 cervical third middle third incisal third tooth element 23 cervical third middle third incisal third L before 66,88 69,86 64,31 L before 65,28 64,25 64,55 L before 68,99 68,51 64,23 L before 64,58 65,37 64,04 L before 69,19 69,80 69,36 L before 65,78 67,36 65,36 L after 70,27 69,29 65,93 L after 67,66 61,01 69,12 L after 69,23 69,78 67,36 L after 67,89 68,11 64,66 L after 70,38 71,18 70,98 L after 67,41 69,11 68,33 24,18 18,58 14,81 25,01 19,01 13,96 22,21 24,77 17,15 L 6 m. later c before 70,12 69,46 66,08 L 6 m. later c before 68,12 61,00 68,85 L 6 m. later c before 69,21 70,45 68,98 L 6 m. later c before 68,22 68,15 64,81 L 6 m. later c before 70,40 71,67 71 L 6 m. later c before 67,61 69,45 68,87 23,55 19,88 18,87 20,21 19,58 19,81 25,67 19,88 19,06 77,92 83,14 87,94 77,91 84,21 88,45 77,41 83,12 86,90 c 6 m. later h before 13,76 17,55 13,88 c 6 m. later h before 20,44 16,98 12,46 c 6 m. later h before 17,56 25,64 14,46 c 6 m. later h before 23,76 23,08 19,97 c 6 m. later h before 19,67 18,47 17,11 c 6 m. later h before 21,11 18,99 17 80,91 83,98 85,59 80,97 84,30 85,12 75,22 75,18 76,69 h after 88,01 86,12 88,89 h after 84,64 85,13 88,01 h after 87,94 81,94 87,59 h after 79,90 83,94 86,99 h after 75,39 71,94 77,54 h after 82,19 83,99 85,69 h 6 m. later 88,12 86,20 88,09 h 6 m. later 84,39 85,03 88,00 h 6 m. later 88,06 82,64 88,01 h 6 m. later 79,28 83,99 86,76 h 6 m. later 75,76 73,27 78,19 h 6 m. later 82,23 84,15 85,97 PATIENT N. 2 tooth element 11 cervical third middle third incisal third tooth element 21 cervical third middle third incisal third tooth element 12 cervical third middle third incisal third tooth element 13 cervical third middle third incisal third tooth element 22 cervical third middle third incisal third tooth element 23 cervical third middle third incisal third L before 71,91 69,82 70,08 L before 69,89 70,01 69,12 L before 69 69,82 68,89 L before 68,8 69,15 69 L before 70,12 70,01 69,76 L before 69,98 69,11 69,78 L after 72,21 71 71,72 L after 71,99 71 70,23 L after 70 71,10 71 L after 72 68,64 68,12 L after 71,54 71,56 70,12 L after 70,14 69,99 71 c after 15,00 18,91 13,97 c after 20,34 17,32 12,26 c after 17,15 24,65 13,87 c after 23,21 22,77 19,87 c after 19,45 18,45 17,12 c after 21,75 18,17 17,02 22,61 21,55 19,98 26 26,12 25,89 20,1 20,1 20,23 L 6 m. later c before 72,22 71,03 71,88 L 6 m. later c before 71,12 71,1 70,22 L 6 m. later c before 70,08 71,66 71,10 L 6 m. later c before 72,2 68,44 68,15 L 6 m. later c before 71,44 71,54 70,22 L 6 m. later c before 70,45 70,01 71,01 23,09 22,98 23 22 22,02 21,12 26 25,49 24 c after 20,45 20,98 19,12 c after 19,2 19,3 19,83 c after 25,12 25 25,34 c after 25,33 24,56 23,32 c after 21,12 22,00 21 c after 22,12 21,09 22,01 69,90 70 70 68,88 71,21 68,79 68,23 68,28 69 c 6 m. later h before 20,56 20,96 19,11 c 6 m. later h before 19,27 19,22 19,86 c 6 m. later h before 25,1 25,2 25,12 c 6 m. later h before 25,23 24,45 23,44 c 6 m. later h before 21,02 22 20,98 c 6 m. later h before 22,15 21,10 22 71 72,02 71,12 72 73 74 71 72 71 h after 69,91 73,24 71,23 h after 70 70,10 70 h after 70 71 71,1 h after 71,14 72,98 71,15 h after 72,12 72,99 71,45 h after 72,34 73,99 74,98 h 6 m. later 69,98 73,44 71,28 h 6 m. later 70,01 70,12 70,03 h 6 m. later 70 71,1 71,1 h 6 m. later 71,2 72,99 71,15 h 6 m. later 72,14 72,77 71,48 h 6 m. later 72,38 74 74,76 50 cosmetic dentistry 1 2017