Effect of thermal cyclic stress on acid resistance of resin-infiltrated incipient enamel lesions &lt;i&gt;in vitro &lt;/i&gt;

Takashino, Nami; Nakashima, Shinsuke; Shimada, Yasushi; Tagami, Junji; Sumi, Yasunori

doi:10.4012/dmj.2015-341

Cited by 7 publications

(7 citation statements)

References 30 publications

(44 reference statements)

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“…34 Ourcolor results came in agreement with those of Bak et al 25 and Yetkiner et al 35 who proved the ability of resin infiltrant to resist thermal and discoloration challenges. Regarding surface roughness, our results agreed with previous studies [36][37][38][39][40] which concluded that resin infiltration of enamel lesions can provide and maintain smoother surface. However, these results contrast those of other researches [41][42][43] which reported that surface roughness and color stability of resin-infiltrated enamel lesions were less than ideal and could further recede with aging in the oral environment.…”

Section: Discussionsupporting

confidence: 91%

Resistance of resin‐infiltrated enamel to surface changes in response to acidic challenge

Enan

Aref

Hammad

2019

J Esthet Restor Dent

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Objective To investigate the ability of resin infiltration to protect demineralized enamel against acidic challenge. Materials and methods Forty‐five extracted healthy premolars were selected for the study, each of which was sectioned vertically into 2 halves, giving 90 specimens. Specimens were then divided into three groups, where specimens of group A were not decalcified (control), while those of groups B and C were either subjected to decalcification only, or decalcification followed by Icon resin infiltration, respectively. Each group was further divided into three subgroups, according to the type of storage medium (water, Coca‐Cola, or Redbull). Evaluation parameters included color difference and surface roughness. Scanning electron microscope was used to evaluate enamel surface topography. Statistical analysis was performed by ANOVA followed by least significant difference test. Results Although Coca‐Cola caused the highest color change and surface roughness among the studied specimens, yet, the resin‐infiltrated enamel was more resistant to surface changes than the nonresin infiltrated enamel, even under acid attack. Conclusion Resin infiltration has the ability to provide and maintain protection to the demineralized enamel against acidic attack. Clinical significance Resin infiltration may be considered as a promising solution to restore esthetic of demineralized enamel following orthodontic treatment and to protect it against acidic beverages.

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Section: Discussionsupporting

confidence: 91%

Resistance of resin‐infiltrated enamel to surface changes in response to acidic challenge

Enan

Aref

Hammad

2019

J Esthet Restor Dent

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“…The increased surface roughness observed on the resin-infiltrated lesions with aging in the present study, may be attributed to internal and thermal stresses generated by water sorption and thermal expansion and contraction. 19 The present results agreed with former studies [30][31][32] which reported the ability of resin infiltrants to provide and maintain smoother enamel surface. However, other studies 19,33,34 came in contrast, as they reported that surface roughness of resin-treated enamel lesions were not ideal and might further recede with aging.…”

Section: Discussionsupporting

confidence: 92%

Surface Properties of Resin-Infiltrated Incipient Enamel Lesions After Aging Under Thermal Stresses

Enan

Tawfik

Ali

et al. 2018

Egyptian Dental Journal

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Introduction:Resin infiltration technique is a promising option for treatment of incipient enamel lesions, especially for patients with history of fixed orthodontic appliances. However, its ability to resist aging under thermal influences in the oral cavity is still questionable. Aim of the study: The present research aimed to inspect the ability of resin-infiltrated initial enamel lesions, to resist aging under thermal challenge. Materials and methods:Fifty extracted non-carious premolars were included in the present study. Specimens were equally distributed into 5 groups, where group 1 included teeth with sound enamel (control), while group 2 included teeth with decalcified untreated lesions. Specimens of group 3 were subjected to Icon® resin infiltration after decalcification. For groups 4 and 5, decalcified resin-infiltrated specimens were subjected to thermocycling (TC) at 5,000 or 10,000 cycles respectively. Surface evaluation parameters included surface microhardness and roughness. Surface morphology was further evaluated using scanning electron microscope (SEM). For statistical analysis, ANOVA and LSD tests were used.Results: Resin-infiltrated enamel was more resistant to surface changes, under thermal stresses, than the non-resin-infiltrated enamel. The resin surface showed high resistance to surface degradation at thermal stress of 5000 cycles, while more deterioration started to appear at 10,000 cycles. Conclusion:Resin infiltration has the ability to provide adequate protection to the demineralized enamel against thermal attack of 5,000 thermal cycles. However, surface microcracks generated at 10,000 thermal cycles indicate that the material might further deteriorate on aging for more than one clinical service year.

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“…A longer experiment that mimics 5 years of in vivo conditions might deliver more accurate results about the long-term stability of the infiltrate. In other studies, infiltrated lesions were subjected to thermocycling combined with acid challenges to test the surface stability [ 10 , 39 ]. The results of these studies were similar to the findings in this study.…”

Section: Discussionmentioning

confidence: 99%

Surface Roughness of Initial Enamel Caries Lesions in Human Teeth After Resin Infiltration

Arnold

Meyer

Naumova

2016

TODENTJ

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Background:Low viscosity resin infiltration of initial caries lesions is a modern microinvasive method to treat initial cries lesions. However, only scarce information is available about the long-term surface alterations of infiltrated lesions.Methods:Twenty-eight premolar teeth exhibiting non-cavitated initial caries lesions (International Caries Detection and Assessment System (ICDAS code 1&2)) were divided into two groups, one of which was infiltrated with resin, and the other remained untreated. The teeth underwent two thermocycling procedures. The surface roughness was determined quantitatively, and the results were evaluated statistically. In addition, the surfaces of the lesions were investigated by scanning electron microscopy (SEM), and the surface was analyzed visually with respect to surface irregularities.Results:The results showed a reduction in the surface roughness that was significant after 2500 thermocycles compared to the untreated surface. In the control specimens, no change in the surface roughness was found. The qualitative SEM data also showed a smooth surface after thermocycling, which supported the statistical findings.Conclusion:After thermocycling, resin-infiltrated enamel surfaces become smoother and had no additional risk for plaque accumulation.

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Effect of thermal cyclic stress on acid resistance of resin-infiltrated incipient enamel lesions <i>in vitro </i>

Cited by 7 publications

References 30 publications

Resistance of resin‐infiltrated enamel to surface changes in response to acidic challenge

Resistance of resin‐infiltrated enamel to surface changes in response to acidic challenge

Surface Properties of Resin-Infiltrated Incipient Enamel Lesions After Aging Under Thermal Stresses

Surface Roughness of Initial Enamel Caries Lesions in Human Teeth After Resin Infiltration

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