Masking white spots of enamel in caries lesions with a non-invasive infiltration technique in vitro

Ou, Xiaoyan; Zhao, Yue; Ci, Xiang-ke; Zeng, Liangwei

doi:10.4238/2014.august.29.14

Cited by 12 publications

(15 citation statements)

References 16 publications

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“…The solution was changed every day. 16 Each tooth was assigned a number from 1 to 80 for identification purposes and these numbers were used to randomly assign the samples to the four study groups.…”

Section: Tooth Preparationmentioning

confidence: 99%

Combined effect of Er,Cr:YSGG laser and casein phosphopeptide amorphous calcium phosphate on the prevention of enamel demineralization:

Adel¹,

Marzouk²,

El-Harouni³

2020

The Angle Orthodontist

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Objectives To compare the effect of use of laser, casein phosphopeptide–amorphous calcium phosphate (CPP–ACP), and their combination on prevention of enamel demineralization using polarized light microscopy to assess lesion depth. Materials and Methods Eighty premolars were randomly allocated to four equal groups (n = 20): Group I: Control group, no preventive measures. Group II: CPP–ACP. Group III: Er,Cr:YSGG laser. Group IV: Er,Cr:YSGG laser followed by CPP–ACP. Specimens were subjected to thermocycling and brushing protocols equivalent to 1 year intraorally. Then, all teeth were subjected to acid challenge. Teeth were then sectioned longitudinally and examined under a polarized light microscope and lesion depth was measured. Results Group IV resulted in the least lesion depth with a significant difference between it and all other groups. CPP–ACP alone and laser alone also showed a significant difference in white spot lesion (WSL) depth compared to the control group; however, no significant difference was found between them. Conclusions The combined use of laser and CPP–ACP showed the best prevention against WSL development. The use of CPP–ACP or laser alone also resulted in a significant reduction in lesion depth but was significantly less than their combined use, with no significant difference between them.

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Section: Tooth Preparationmentioning

confidence: 99%

Combined effect of Er,Cr:YSGG laser and casein phosphopeptide amorphous calcium phosphate on the prevention of enamel demineralization:

Adel¹,

Marzouk²,

El-Harouni³

2020

The Angle Orthodontist

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“…Also, 8 groups were assigned for double infiltrant application; 3 minutes for the first step and further 1 minute for the second step according to manufacturer's instructions. This was suggested by two studies (20,29) which noticed decreased lesion pore volume after double resin infiltrant application. Also, the resin infiltrant was recommended to be applied twice by Robinson et al (35) because of the shrinkage of the material following the first application resulting in the generation of space that can then be occluded by a second application.…”

Section: Discussionmentioning

confidence: 71%

“…Two studies by Kim et al (28) and Ou et al (29) examined the association between the depth of WSLs and the effect of resin infiltration, but no evidence was given regarding the number of etching and infiltrant applications needed for each depth.…”

Section: Discussionmentioning

confidence: 99%

“…It was concluded that lesions deeper than the infiltration capacity of resin infiltrants might demonstrate insufficient esthetic improvement. Ou et al (29) examined the treatment effect of resin infiltration on different degrees of enamel demineralization. The results indicated that treatment of high and low demineralization of enamel had a similar masking effect.…”

Section: Figmentioning

confidence: 99%

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Spectrophotometric evaluation of different protocols of resin infiltration of white spot lesions with various depths

Mohamed¹,

Marzouk²,

Zaher³

2017

Egyptian Orthodontic Journal

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Objectives:This study was conducted to evaluate the efficiency of resin infiltration to improve the color of White Spot Lesions (WSLs), and to estimate the effect of different numbers of etching and resin infiltrant applications on the color change of WSLs with various depths. Methods: 96 sound extracted premolars were subjected to acid attack inducing different depths of WSLs. Using a DIAGNOdent, teeth were divided into four main groups according to the depth of the WSLs: shallow enamel, deep enamel, shallow dentine and deep dentine without cavitation. Then each of the main groups was subdivided into 4 groups; 6 teeth each with different protocols of resin infiltration as followsResults: In shallow enamel, EA produced the least mean color difference (1.62±0.85), with high significant difference (P < 0.001), when compared with the clinically detectable threshold (∆E =3.7). While in deep enamel, EAA showed the least mean color change (1.95±0.4), with P < 0.001 when compared with the critical value. Also, in shallow dentine, the least mean change was noticed with EAA (3.0±0.45), P < 0.001 when compared with the clinical color detection threshold. Furthermore, in deep dentine, EAA had the least mean difference (3.76±0.6) but with no significant difference, when compared with the clinically detectable threshold. Conclusion: As the WSL got deeper, the color of the lesion became more clinically visible. In shallow enamel, the best treatment option was one etching with one resin infiltrant application. For deep enamel and shallow dentine, one etching with two applications of infiltrant gave the best lesion masking. In deep dentine it is advisable to perform one etching with two infiltration steps, taking in consideration that all deep dentine lesions without cavitation were partially masked, remained clinically detectable and might require more invasive restorative procedures.

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“…Colorimetric distance is defined as the value that represents the distance between the positions of two colours within the colour space. So far the most frequently colour space used to calculate the colour of natural teeth and restorative materials has been the standard established by the Comission Internationale de l'Éclairage in 1976 (CIE L*a*b*) 3,4 .…”

Section: Introductionmentioning

confidence: 99%

Measuring color change of tooth enamel by in vitro remineralization of white spot lesion.

2015

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Objective colour determination is based on calculating the colorimetric distance (ΔE) within a colour space. So far, the most used colour space in dentistry is CIE L*a*b (Comission Internationale de l´Éclairage). CIE L*C*h* has been recently developed, showing a better correlation with the perception of the human eye. Objective: To determine the ability of an in vitro remineralisation substance to blend the colour of white spot lesions (WSL) with sound enamel, determining ΔE by using the CIE L*C*h* colour space. Methods: In vitro WSL was generated by immersing 10 samples obtained from human third molars in a demineralization solution for 72h. Amorphous calcium phosphate stabilized by casein phosphopeptide (CPP-ACP) was then applied for 60 days while maintaining the samples in artificial saliva at 37ºC. To evaluate the colour of enamel, images were taken from the samples placed in specifically designed silicone moulds after generating the WSL (pre-stage) and after remineralisation by scanning, applying the colorimetric distance equation (ΔE*CMC) according to the Colour Measurement Committee. Results: Treatment with CPP-ACP caused a significant ΔE decrease with respect to the pre-stage (p<0.001), while the analysis of parameters that make up the colour showed a reduction in the difference of hue (ΔH) (p<0.001) and brightness (ΔL) (p<0.01) after applying CPP-ACP. Discussion: CPP-ACP penetrated to the depth of the white spot lesion, making its appearance similar to that of the sound enamel, probably because of the formation of different mineral phases than that of the original structure, although pores were not completely filled.

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Masking white spots of enamel in caries lesions with a non-invasive infiltration technique in vitro

Cited by 12 publications

References 16 publications

Combined effect of Er,Cr:YSGG laser and casein phosphopeptide amorphous calcium phosphate on the prevention of enamel demineralization:

Combined effect of Er,Cr:YSGG laser and casein phosphopeptide amorphous calcium phosphate on the prevention of enamel demineralization:

Spectrophotometric evaluation of different protocols of resin infiltration of white spot lesions with various depths

Measuring color change of tooth enamel by in vitro remineralization of white spot lesion.

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