Color change of primary teeth following exposure to an experimentally synthesized liposomal nano-encapsulated ferrous sulfate drop versus the commercially available iron drops

2021 ◽  
Author(s):  
Marzieh Abbasi ◽  
Fatemeh Mazhari ◽  
Mahmood-Reza Jaafari ◽  
Elham Afshari ◽  
Hossein Bagheri ◽  
...  
Keyword(s):  
Ferrous Sulfate ◽  
Primary Teeth ◽  
Color Change

scholarly journals Sequelae in primary teeth after traumatic injury

2017 ◽  
Vol 20 (2) ◽  
pp. 70 ◽  
Author(s):  
Mayara Fontenele ◽  
Maiara Macedo ◽  
Pedro Rebouças ◽  
Paulo Goberlânio de Barros Silva ◽  
Denise Lins De Sousa ◽  
...  
Keyword(s):  
Primary Teeth ◽  
Color Change ◽  
Traumatic Injury ◽  
Pediatric Dentistry ◽  
Deciduous Teeth ◽  
Institutional Research ◽  
The Social ◽  
High Prevalence ◽  
Fall From Height ◽  
Statistical Analysis Software

<pre> </pre><pre><strong>Purpose:</strong> Determine the prevalence of injuries due to dislocation in the primary dentition and the associated sequelae in children treated at Pediatric Dentistry Clinic of the School of Pharmacy, Dentistry and Nursing, Federal University of Ceará. <strong>Material and</strong> <strong>Methods:</strong> The research protocol was reviewed and approved by the Institutional Research Ethics Committee Medical School of the Federal University of Ceará, Fortaleza, Ceará, Brazil. It was conducted through a transversal retrospective observational investigation. Data were collected from the medical records from 2000 to 2014. We use the statistical analysis software SPSS (Statistical Packacge for the Social Sciences) 17.0 for Windows. <strong>Results:</strong> The sample consisted of 52 patients, totaling 75 traumatized primary teeth. The average age at injury was 37.6 months and the most affected gender was male (65.4 %). Most injuries occurred at home (57.7 %) and consequently to fall from height (73%). The most common type of dislocation for injury was intrusion (53.3 %) and color change (42.7%), pulp necrosis (37.3 %) and obliteration of the root canal (13.3%) the most frequent sequelae. <strong>Conclusions: </strong>The high prevalence of sequelae (74.7 %) shows that proper treatment should happen at right time in order to reduce the occurrence of sequelae.</pre><pre><strong><br /></strong></pre><pre><strong>KEYWORDS</strong></pre><pre><strong><br /></strong></pre><pre> Deciduous teeth; Sequelae; Tooth injuries.</pre>

Dyeing Silk with Tea Polyphenol

2012 ◽  
Vol 441 ◽  
pp. 83-87 ◽  
Author(s):  
Hong Fei Qian ◽  
Ping Zhu ◽  
Gang Bai ◽  
Yan Chun Liu
Keyword(s):  
Acid Medium ◽  
Ferrous Sulfate ◽  
Aluminum Sulfate ◽  
Color Change ◽  
Weak Acid ◽  
Metal Salts ◽  
Tea Polyphenol ◽  
Color Strength ◽  
Potassium Aluminum Sulfate ◽  
Color Depth

Tea polyphenol (TP) was used to dye silk by the post-mordanting method using three different metal salts as the mordant; ferrous sulfate, copper sulfate and potassium aluminum sulfate. The results were analyzed in terms of color strength (K/S value) and fastness characteristics as well as the influence of variables such as dyeing time, temperature and pH on the color depth of the dyed sample. A weak acid medium and a low dyeing temperature were found to be optimal for adsorption of TP when dyeing silk with TP. Comparing the color shade of dyed silk obtained with different metal salts as the mordant showed that ferrous sulfate gave the highest K/S value followed by copper and then aluminum. During the soaping colorfastness test, a relatively large color change was associated with increased color strength as well as non-staining of adjacent fibers.

scholarly journals Histological Studies on the Black Discoloration of Peach Fruit Skin Exposed to Iron

HortScience ◽  
1994 ◽  
Vol 29 (3) ◽  
pp. 189-190 ◽  
Author(s):  
Osamu Arakawa ◽  
Joe M. Ogawa
Keyword(s):  
Ferrous Sulfate ◽  
Prunus Persica ◽  
Color Change ◽  
Chromic Acid ◽  
Sulfate Solution ◽  
Peach Fruit ◽  
Fruit Skin ◽  
Pigment Distribution ◽  
Black Discoloration ◽  
Main Factor

The skin of `Elegant Lady' peach [Prunus persica (L.) Batsch.] fruit turned black when exposed to 100 ppm ferrous sulfate solution. This color change appeared on the red and the yellow portions of the fruit. Microscopy of the skin showed blue-black pigment distribution in epidermal and hypodermal tissues. Some epidermal and hypodermal cells discolored immediately when exposed to ferrous solutions, but many cells turned black later. Some cells with anthocyanin pigments did not discolor. Chromic acid showed that tannic substances were distributed in the epidermal and hypodermal cells, and they likely are the main factor in black discoloration of peach fruit exposed to solutions containing Fe.

scholarly journals Color Change of Primary Teeth Following Using 4 Types of Iron Supplements Available in the Iranian Pharmacopeia

2019 ◽  
Vol 11 (2) ◽  
pp. 66-71
Author(s):  
Soudeh Tayebi ◽  
Mohammad Esmaeilzade ◽  
Loghman Soufi Rezai ◽  
Farnoush Fotovat ◽  
Roya Najafi Vosogh ◽  
...  
Keyword(s):  
Primary Teeth ◽  
Color Change ◽  
Iron Supplements

scholarly journals Decay Resistance and Color Change of Pine and Beech Wood Impregnated with R. Luteum and R. Ponticum Plant Extracts

2021 ◽  
Vol 72 (4) ◽  
pp. 353-363
Author(s):  
Huseyin Pelit ◽  
Ali Alkan ◽  
Mesut Yalcin
Keyword(s):  
Mass Loss ◽  
Copper Sulfate ◽  
Ferrous Sulfate ◽  
Aluminum Sulfate ◽  
Color Change ◽  
Concentration Level ◽  
Beech Wood ◽  
Decay Resistance ◽  
B Values ◽  
Yellow Color

In this study, the effect of impregnation with natural extracts on decay resistance and color change of pine and beech wood was analyzed. Flowers of Rhododendron luteum and Rhododendron ponticum plants were extracted according to the decoction method and aqueous solutions were prepared at different concentration levels (2 %, 4 % and 7 %). In addition, ferrous sulfate, copper sulfate and aluminum sulfate mordants were added to the solution to improve the properties of the extracts. Then the wood specimens were impregnated with the prepared solutions. The results indicated that the effect of plant species on the mass loss of specimens exposed to T. versicolor (white-rot fungus) was insignificant. Non-mordant extracts had a slight effect on the mass loss of the specimens. However, in pine and beech specimens impregnated with mordant-added (especially ferrous sulfate-added) extracts, mass loss was significantly reduced and resistance to fungal rot was almost completely achieved. The concentration level did not have a significant effect on the mass loss of specimens treated with mordant-added extracts. After impregnation, the L* value of all specimens (especially those treated with ferrous sulfate-added extracts) decreased and the specimens darkened. The a* and b* values increased in specimens treated with non-mordant and aluminum sulfate-added extracts and these specimens tend to have a red-yellow color. The a* value decreased and the b* value increased in wood specimens treated with copper sulfate-added extracts. The green-yellow color trend of these specimens increased. Both the a* and b* values of the specimens treated with ferrous sulfate-added extracts decreased and the green-blue color tendency increased in these specimens. The increase in the concentration level positively affected the determined color changes. The total color change (ΔE*) was higher in wood specimens (especially pine) treated with ferrous sulfate-added R. ponticum extracts.

Color Change Can Be Earliest Sign of Melanoma

2005 ◽  
Vol 38 (22) ◽  
pp. 16
Author(s):  
TIMOTHY F. KIRN
Keyword(s):  
Color Change

The role of intracanal medicaments in inhibition of bacteria isolated from root canals of infected primary molars

2019 ◽  
Vol 14 (1) ◽  
pp. 92
Author(s):  
Dr. Maha Abdul- Kareem Mahmood ◽  
Dr. Huda Elias Ali ◽  
Dr. Haraa Khairi Abdul-Kadher
Keyword(s):  
Antimicrobial Activity ◽  
Streptococcus Mutans ◽  
Normal Saline ◽  
Root Canal ◽  
Primary Teeth ◽  
Primary Molars ◽  
Root Canals ◽  
Etiologic Agents ◽  
Micro Organisms

Microbes are considered as the primary etiologic agents in endodontic diseases.Disinfection of the root canal is obtained by the combined effect of biomechanicalpreparation, irrigation and intra canal medicament. The aim of the present study wasto assess the antimicrobial activity of intracanal medicaments (formocresol andEndosepton) against two micro organisms (Streptococcus mutans and staphylococcusaureus) isolated from 15 necrotic pulps of primary molars indicated for pulpectomyprocedure. The samples were cultured, and purified using microbiological evaluation.Broth dilution test was performed in our study by preparing test tubes containing10 ml of BHI broth (pH. 7) which then inoculated with strains of the tested bacteriaand incubated at 37 C° for 24 h. After over night incubaction, ten fold dilution weremade in test tubes containing 9 ml of normal saline by adding 1 ml of the inoculum tothe first tube . Then from dilution 10-1 , 0.1 ml of cell suspension was added to 9.9 mlof formocresol and endosepton, then 0.1 ml was taken and spread on duplicates ofBHI agar plates at different intervals and incubated aerobically for 24 h. at 37 C°.Colonies on the plates were counted after incubation and CFU/mL (colony formingunit) was calculated. Our results indicating that there were no significant differencesbetween the intracanal medicaments, but there were high significant differencesbetween the intervals time of the study. We concluded that both materials had greatantibacterial effect against the pathogens commonly isolated from necrotic pulpaltissue of primary teeth.

Assessment of Color Stability of Treated Leathers with Silicone Oil and Polyethylene Glycol

2014 ◽  
Vol 1 (1) ◽  
pp. 24-34
Author(s):  
Alireza K. ◽  
Hossein Ahmadi ◽  
Mohsen Mohammadi
Keyword(s):  
Ascorbic Acid ◽  
Polyethylene Glycol ◽  
Treatment Process ◽  
Color Change ◽  
Silicone Oil ◽  
Accelerated Aging ◽  
Color Stability ◽  
Antioxidant Additive ◽  
Before And After ◽  
Aesthetic Values

Lubricants and leather dressings are the most common treatments of dry and water logged historical leathers. Color change has a great importance during the time and treatment process, due to visual and aesthetic values of historic leather relics. Polyethylene glycol (PEG) and silicone oil (SiO) are frequently used leather dressings in the conservation procedures. Therefore, color stability of treated leathers with PEG and SiO were investigated before and after heat accelerated aging. Moreover, application of ascorbic acid was evaluated as an antioxidant additive for PEG (PEG+AA).Color change after treatment and aging were studied by colorimetry technique in the CIE *L*a*b system. Results indicated to severe color alteration in PEG treated and aged leathers with or without ascorbic acid. Whereas, SiO treated samples showed better stability and minimum color shift after aging. Silicone oil was characterized as the best dressing for historical leathers with compared to PEG and PEG+AA, due to its high stability and aesthetical properties.

Laser Influence on Dental Sensitivity Compared to Other Light Sources Used During In-office Dental Bleaching: Systematic Review and Meta-analysis

2020 ◽  
Vol 45 (6) ◽  
pp. 589-597
Author(s):  
BGS Casado ◽  
EP Pellizzer ◽  
JR Souto Maior ◽  
CAA Lemos ◽  
BCE Vasconcelos ◽  
...  
Keyword(s):  
Randomized Clinical Trials ◽  
Color Change ◽  
Meta Analysis ◽  
Present Review ◽  
Cochrane Library ◽  
Light Sources ◽  
Eligibility Criteria ◽  
Tooth Color ◽  
Significant Difference ◽  
Meta Analyses

Clinical Relevance The use of laser light during bleaching will not reduce the incidence or severity of sensitivity and will not increase the degree of color change compared with nonlaser light sources. SUMMARY Objective: To evaluate whether the use of laser during in-office bleaching promotes a reduction in dental sensitivity after bleaching compared with other light sources. Methods: The present review was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) and is registered with PROSPERO (CDR42018096591). Searches were conducted in the PubMed/Medline, Web of Science, and Cochrane Library databases for relevant articles published up to August 2018. Only randomized clinical trials among adults that compared the use of laser during in-office whitening and other light sources were considered eligible. Results: After analysis of the texts retrieved during the database search, six articles met the eligibility criteria and were selected for the present review. For the outcome dental sensitivity, no significant difference was found favoring any type of light either for intensity (mean difference [MD]: −1.60; confidence interval [CI]: −3.42 to 0.22; p=0.09) or incidence (MD: 1.00; CI: 0.755 to 1.33; p=1.00). Regarding change in tooth color, no significant differences were found between the use of the laser and other light sources (MD: −2.22; CI: −6.36 to 1.93; p=0.29). Conclusions: Within the limitations of the present study, laser exerts no influence on tooth sensitivity compared with other light sources when used during in-office bleaching. The included studies demonstrated that laser use during in-office bleaching may have no influence on tooth color change.

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