Registered Microhardness of human teeth parts and dental filling composites

Schmitt, Lena; Lurtz, Claudia; Behrend, D.; Schmitz, Klaus‐Peter

doi:10.1007/978-3-540-89208-3_539

Cited by 3 publications

(2 citation statements)

References 5 publications

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“…In the present study Group I (control) showed the highest microhardness value. This was in agreement with many studies done by Schmitt et al, (28) and Borges et al, (29) .There is a significant decrease in microhardness in group II . This was in agreement with many studies (30)(31)(32)(33) as minerals, primarily calcium and phosphate, leak out from the hydroxyapatite crystals during demineralization and in situations where demineralization outpaces remineralization, this leads to the development of subsurface lesions (34) .While in subgroup IIIa, in the samples which were treated with CPP-ACPF, there is a marked significant increase in microhardness, this was in agreement with previous studies done by Agnihotri et al, (35) This could be related to the presence of 'Recaldent' that combines casein phosphopeptide (CPP) from milk with amorphous calcium phosphate (ACP).…”

Section: Discussionsupporting

confidence: 93%

Comparative Evaluation of Remineralizing Effect of Casein Phosphopeptide – Amorphous Calcium Phosphate Fluoride and Silver Diamine Fluoride on Demineralized Enamel Surfaces ( An In Vitro Study)

Hagry

Elbaz

Soud

2021

Dental Science Updates

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Introduction Caries initiation is associated with demineralization of the tooth enamel surface. Calcium and phosphorous are lost from the subsurface enamel, resulting in the formation of a subsurface lesion. Aim: this study aimed to investigate and compare the enamel surface ultramorphology and minerals content by Environmental Scanning Electron Microscope (ESEM) and Energy dispersive x-ray spectroscopy (EDX) and to assess micro-hardness (Vickers test) of demineralized enamel surface treated with CPP-ACP casein Phosphopeptide-Amorphous Calcium Phosphate Flouride(MI Paste Plus) or SDF ( FAgamine). Materials and methods: This study was conducted on twenty eight human premolars ,were collected from the outpatient clinic of Maxillofacial Department, Faculty of Dentistry, Suez Canal University. The selected premolars distributed into three groups: Group I: consisted of 7 intact sound premolars,(control group) Group II : consisted of 7 demineralized premolars,(demineralized group) while, Group III consisted of 14 premolars ( each one divided into 28 halves mesiodistally) then all 28 specimens of group III were demineralized and half of them were treated by MI Paste plus ( subgroup IIIa) and other were treated by SDF( subgroup IIIb). All Groups I,II&III were placed in artificial saliva for 7days at 37ᵒc. Results: There was a statistically significant difference between calcium and phosphorus values of the three groups; subgroup IIIa showed the highest value followed by subgroup IIIb & group I and finally the least value was related to group II .The highest value of fluoride content related to subgroup IIIb. There was not statistically significant difference between microhardness values of group I and group III while group II revealed the lowest microhardness value. Conclusion: Both CPP-ACPF and SDF show areas of mineralized deposits and improvement of enamel ultrastructure. Also both CPP-ACPF and SDF are efficient remineralizing agent, but CPP-ACPF is more efficient as remineralizing agent than SDF. CPP-ACPF shows better microhardness results than SDF.

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Section: Discussionsupporting

confidence: 93%

Comparative Evaluation of Remineralizing Effect of Casein Phosphopeptide – Amorphous Calcium Phosphate Fluoride and Silver Diamine Fluoride on Demineralized Enamel Surfaces ( An In Vitro Study)

Hagry

Elbaz

Soud

2021

Dental Science Updates

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“…Regarding surface micro-hardness,Vickers hardness values for sound enamel were used as reported in previous studies 15,16 .The results showed that after pH cycling there was no statistically significant difference in micro-hardness between the ICON surface pretreatment and the control groups which was in accordance with Burgess and Cakir 17 , and Mugisa 18 . Nadia et al in 2012 19 reported that ICON surface pretreatment sealed the enamel porosities in the infiltrated enamel and, hence the resulted absence of an increase in the surface hardness compared to sound enamel.…”

Section: Discussion:-supporting

confidence: 70%

Will Resin Infiltration With Icon Prevent Enamel Demineralization Around Orthodontic Brackets?

Elhiny¹,

Salem²

2016

IJAR

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Objective:The aim of this study was to investigate the ability of Icon surface pretreatment to prevent demineralization under and around orthodontic brackets and its subsequent effect on the shear bond strength. Methods: A total number of 20 sound human maxillary premolars freshly extracted for orthodontic treatment were divided into two groups. Group one: control group with no surface pretreatment. Group two: ICON surface pretreatment was done for the enamel surface before bonding the brackets. Both groups were subjected to a 21-day pH-cycling protocol. Shear bond strength measured in mega Pascal (MPa) and surface microhardness measured in Vickers hardness value (HV) were evaluated after thermo-cycling and statistically analyzed. Adhesive remnants index (ARI) scores were determined at 25× magnification and statistically analyzed. Results: there was no significant difference in surface hardness within the study groups; before and after pH cycling as well as no significant difference in shear bond strength in the ICON surface pretreatment group when compared to the control group. Conclusion:ICON surface pretreatment for prevention of white spot lesions can be done clinically under orthodontic brackets without affecting the shear bond strength significantly.Copy Right, IJAR, 2016,. All rights reserved. …………………………………………………………………………………………………….... Introduction:-Dental caries is one of the most prevalent diseases. Understanding the caries process is highly important to establish a proper treatment plan for each patient. Dental caries is a dynamic process involving periods of demineralization and remineralization. During the demineralization period there is a dissolution of calcium hydroxyl apatite from the enamel and the production of micro-porosities that result in development of enamel subsurface caries lesions which appear clinically as chalky white and rough patches on the enamel surface denoting active lesions or bright white and smooth spots on the demineralized enamel surface representing inactive lesions. These initial carious lesions can be called white-spot lesions 1, 2 .

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Novel ceramic–polymer composites synthesized by compaction of polymer-encapsulated TiO2-nanoparticles

Brandt

Salikov

Özcoban

et al. 2011

Composites Science and Technology

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Registered Microhardness of human teeth parts and dental filling composites

Cited by 3 publications

References 5 publications

Comparative Evaluation of Remineralizing Effect of Casein Phosphopeptide – Amorphous Calcium Phosphate Fluoride and Silver Diamine Fluoride on Demineralized Enamel Surfaces ( An In Vitro Study)

Comparative Evaluation of Remineralizing Effect of Casein Phosphopeptide – Amorphous Calcium Phosphate Fluoride and Silver Diamine Fluoride on Demineralized Enamel Surfaces ( An In Vitro Study)

Will Resin Infiltration With Icon Prevent Enamel Demineralization Around Orthodontic Brackets?

Novel ceramic–polymer composites synthesized by compaction of polymer-encapsulated TiO2-nanoparticles

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