Etiology of tooth discoloration- a review

St, Manuel; Abhishek, Patel; Kundabala, M

doi:10.61172/ndj.v18i2.143

Cited by 21 publications

(2 citation statements)

References 43 publications

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“…Internal tooth discoloration factors include trauma, blood-related illnesses, tetracycline intake, dental caries and restorative materials. External tooth discoloration occurs due to either the consumption of pigmented foods and drinks, mouthwash and/or poor oral hygiene [ 1 , 2 , 3 , 4 ]. Internal tooth bleaching is performed for internal discoloration and external tooth bleaching is performed for external discoloration.…”

Section: Introductionmentioning

confidence: 99%

The Effect of Two Different Wavelengths of Diode Laser on the Shear Bond Strength of Composite to Dental Enamel after Bleaching Process: An In Vitro Study

Pourmahmoudian,

Solimei,

Benedicenti

et al. 2024

Bioengineering

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Introduction: In recent years, tooth whitening has become one of the most popular ways of achieving the original tooth color. The effect of whitening gel can be improved through heat, light or laser. The bond strength between the enamel and the composite can be reduced through bleaching and laser radiation. The purpose of this study is to assess the shear bond strength of resin composite to enamel after a bleaching process using hydrogen peroxide, with and without a laser (970 nm and 445 nm lasers). Method: This study used 51 extracted anterior teeth without caries that were divided into three groups. A 40% hydrogen peroxide gel was used on the enamel of all teeth. The control group received bleaching without a laser. Both the second and third treatment groups received bleaching with a laser, one with 970 nm and the other with 445 nm. After the bleaching process, all groups had etching, bonding and curing of the composite performed. Lastly, the shear bond strength between the enamel and the composite was measured and the failure modes were recorded. The data were compared using a one-way ANOVA test. Results: The mean shear bond strength between the enamel and the composite in the 445 nm group three (445 nanometer) was significantly lower than the other groups (p < 0.05). There was no significant difference between the control and the 970 nm groups (p = 0.2). Conclusion: According to the laser wavelengths and parameters that were used in this study and the results of this study, office bleaching with a 445 nm laser weakened the shear bond strength between the enamel and the composite.

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Section: Introductionmentioning

confidence: 99%

The Effect of Two Different Wavelengths of Diode Laser on the Shear Bond Strength of Composite to Dental Enamel after Bleaching Process: An In Vitro Study

Pourmahmoudian,

Solimei,

Benedicenti

et al. 2024

Bioengineering

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“…Non-invasive teeth whitening is well-known procedure, used to enhance tooth appearance and color (1). Tooth color is influenced by its intrinsic color, stains deposited within its bulk, and extrinsic stains formed on its surface (2). Enamel tissue is translucent and doesn't completely obscure the underlying dentin color, determining the final tooth color (3).…”

Section: Introductionmentioning

confidence: 99%

Whitening Toothpastes Effect on Enamel Surface Morphology, Chemical Profile and Color: An In Vitro Study

Mohsen

2023

Odovtos - Int J Dent Sc

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To assess the effect of different whitening toothpastes on enamel surface morphology, chemical profile and their whitening efficiency. Sixty teeth were divided into 5 groups (12 teeth/group); Gp I: brushed with no toothpaste. Gp II: brushed with Pearl-based toothpaste. Gp III: brushed with Charcoal-based toothpaste. Gp IV: brushed with Alumina-based toothpaste. Gp V: brushed with salt and lemon-based toothpaste. Each tooth was brushed with a bean sized toothpaste wetted with distilled water twice daily by using standard electronic toothbrush for four weeks. Enamel surface morphology, chemical profile and color of each tooth were investigated. Chemical profile results and color measurements were analyzed statistically. Gp I revealed normal enamel surface morphology and chemical profile. Gp II and Gp III demonstrated surface morphology close to Gp I with insignificant reduction in mineral content. Gp IV showed obvious shallowing of perikymata ridges, exposure of fish-scale appearance, with pits and depressions, alongside to the significant reduction in mineral content. Gp V presented the most enamel surface alteration with widening of prism sheath and depressions all over the surface, besides the highest significant reduction in mineral content. Gp V, followed by Gp IV, demonstrated the highest color and whiteness changes, followed by Gp III, then Gp II, while the lowest value was in Gp I. Salt & lemon-based toothpaste, followed by Alumina-based, exerted the most considerable changes in the morphology and chemical profile of the enamel surface, beside to the higher whitening effects on teeth than the others.

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