A comparison of in vitro enamel demineralization potential of 3 orthodontic cements

Foley, Timothy F.; Aggarwal, Manish; Hatibović-Kofman, Šahza

doi:10.1067/mod.2002.122166

Cited by 17 publications

(14 citation statements)

References 18 publications

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“…Optimal properties of RMGIC include insignificant solubility in oral fluids, the ability to bond to enamel in the oral environment, high shear bond strength, suitable applicability and fluoride release potential. Thus, it is believed to be suitable for prevention of caries around orthodontic brackets (27). In the conventional GICs, due to less water sorption, BAG particles form limited reactions with polyacrylic acid, and BAG particles participate in small superficial reactions (10).…”

Section: Discussionmentioning

confidence: 99%

Effect of addition of bioactive glass to resin modified glass ionomer cement on enamel demineralization under orthodontic brackets

2019

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Background Enamel demineralization and white spot lesions around orthodontic brackets is a common problem associated with fixed orthodontic treatment. Glass ionomer cements (GICs) are commonly used for bracket bonding and recently, bioactive glass (BAG) was added to GICs to enhance deposition of calcium phosphate in adjacent dental structure. This study sought to assess the effect of addition of BAG particles to resin modified GIC (RMGIC) on enamel demineralization under orthodontic brackets. Material and Methods In this in vitro , experimental study, 60 sound human premolars were immersed in distilled water at 6°C. The teeth were randomly divided into three groups. Using a sticker, a window measuring 7x7 mm was created on the buccal surface. The remaining surfaces were coated with nail varnish twice with a 3-hour interval. After 24 hours, the stickers were removed. Brackets were bonded to tooth surfaces using Transbond XT (control), Fuji II LC RMGIC and Fuji II LC containing 30% BAG particles. To induce acid attacks, the teeth were immersed in demineralizing solution for 6 hours. For pH cycling, the teeth were then immersed in remineralizing solution for 18 hours. This process was repeated for 21 days. Next, the teeth were longitudinally sectioned into two halves and the depth of demineralization was measured from the deepest point to the surface under a polarized light microscope. Data were analyzed using one-way ANOVA, and pairwise comparisons were carried out using Tukey’s test. Results The mean depth of demineralization was 73.8±22.29, 118.08±29.42 and 182.98±20.69 µm in the BAG, RMGIC and Transbond XT groups, respectively. One-way ANOVA showed significant differences in terms of depth of demineralization among the three groups ( P =0.0001). Tukey’s test revealed significant differences in depth of demineralization. Conclusions Addition of BAG to RMGIC can significantly decrease the depth of enamel demineralization under orthodontic brackets in vitro . Key words: Remineralization, demineralization, orthodontic brackets, bioactive glass, resin modified glass ionomer cement.

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Section: Discussionmentioning

confidence: 99%

Effect of addition of bioactive glass to resin modified glass ionomer cement on enamel demineralization under orthodontic brackets

2019

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“…It had been suggested that fluoride releasing cements such as zinc polycarboxylate and resin modified GIC demonstrated less enamel demineralization than the zinc phosphate cement. [52]…”

Section: Enhancing Enamel Resistance Using Topical Fluoridesmentioning

confidence: 99%

Risk factors and management of white spot lesions in orthodontics

et al. 2013

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The formation of white spot lesions or enamel demineralization around fixed orthodontic attachments is a common complication during and following fixed orthodontic treatment, which mars the result of a successfully completed case. This article is a contemporary review of the risk factors, preventive methods and fate of these orthodontics scars. The importance of excellent oral hygiene practice during fixed orthodontic treatment must be explained. Preventive programs must be emphasized to all orthodontic patients. Suggestions are offered in the literature for ways to prevent this condition from manifesting itself.

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“…Results show a significant reduction in carious lesions when a glass ionomer cement is used to cement orthodontic brackets. The use of this material also significantly reduces the number of white spots observed after removal of the appliance (Dubroc et al, 1994;Donly et al, 1995;Foley et al, 2002;Pascotto et al, 2004;Benson et al, 2005;Cacciafesta et al, 2007;Sudjalim et al, 2007;Lin et al, 2008). Fluoridated bonding resins have anticariogenic power, reducing the occurrence of demineralization adjacent to orthodontic devices by releasing fluoride at specific sites (Evrenol et al, 1999;Wilson & Donly, 2001).…”

Section: Fitting Of the Orthodontic Appliancementioning

confidence: 99%

Orthodontics and Caries

Bourzgui¹,

Sebbar²,

Hamza³

2011

Principles in Contemporary Orthodontics

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The purpose of orthodontics is to achieve correct dental occlusion, while at the same time improving aesthetic appearance. However, we know today that orthodontic treatment increases the risk of carious lesions, which harm patients and jeopardize the successful outcome of the treatment. The formation of carious lesions as a result of orthodontic treatment can be ascribed to inadequate elimination of dental plaque due to hindrance by intrabuccal appliances. To forestall these particularly harmful collateral effects, thorough knowledge of how caries form and the associated risk factors is necessary. The risk factors specific to each patient should therefore be accurately evaluated before any orthodontic treatment is undertaken, and then monitored throughout the treatment so that health-damaging carious lesions do not become established. The aim of this chapter is to define caries and its aetiological factors, pinpoint its various risk factors in orthodontics, describe a preventive, prophylactic approach to be taken before, during and after orthodontic treatment, and make recommendations. 2. Caries Dental caries is the result of bacteria-induced breakdown of the hard tissues of the tooth by progressive local demineralization (Muller et al,1998; Rillard et al, 2000). 2.1 Etiological factors The aetiology of caries is multifactorial. Caries are formed under the simultaneous action of several factors (Fig.1): cariogenic bacteria in dental plaque, food, terrain and a time scale sufficient for the carious lesion to grow (Charland et al, 2001). 2.1.1 Cariogenic bacteria The inside of the mouth and dental plaque contain a broad variety of bacteria. Streptococcus mutans is the main microorganism responsible for human caries. This bacterium uses carbohydrates as a nutrient and energy source, metabolizing them to form lactic acid, which lowers pH and thereby causes the demineralization of tooth enamel (Rillard et al, 2000). This infectious disorder develops with a prevalence that is related to the degree of oral sepsis present.

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A comparison of in vitro enamel demineralization potential of 3 orthodontic cements

Cited by 17 publications

References 18 publications

Effect of addition of bioactive glass to resin modified glass ionomer cement on enamel demineralization under orthodontic brackets

Effect of addition of bioactive glass to resin modified glass ionomer cement on enamel demineralization under orthodontic brackets

Risk factors and management of white spot lesions in orthodontics

Orthodontics and Caries

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