Iron and teeth and pop

[Ironjustic]

Archives of Oral Biology Volume 52, Issue 7, July 2007,
Pages 614-617 Result list | previous < 44 of 92,037 > next
doi:10.1016/j.archoralbio.2006.12.006 Copyright =C2=A9
2006 Elsevier Ltd All rights reserved. Effect of iron on
the dissolution of bovine enamel powder in vitro by
carbonated beverages

Melissa Thiemi Katoa, Andrea Gutierrez Mariab, S=C3=ADlvia
Helena de Carvalho Sales-Peresa and Mar=C3=ADlia Afonso
Rabelo Buzalafb, , aSocial Dentistry Department, Bauru
School of Dentistry, University of S=C3=A3o Paulo, Bauru,
SP, Al. Oct=C3=A1vio Pinheiro Brisolla, 9-75 Bauru-SP
17012-901, Brazil bDepartment of Biological Sciences, Bauru
School of Dentistry, University of S=C3=A3o Paulo, Bauru,
SP, Al. Oct=C3=A1vio Pinheiro Brisolla, 9-75 Bauru-SP
17012-901, Brazil Accepted 6 December 2006. Available online
22 January 2007.

Abstract

Objectives

The aim of this study was to evaluate, in vitro, the effect of
iron on the dissolution of bovine enamel powder, when added to
two carbonated beverages.

Design

Powdered enamel was produced by griding enamel fragments of
bovine incisor in a steel pestle and mortar. Particles between
75 and 106 =CE=BCm were selected using appropriated meshes. At
time zero, the carbonated beverage (Coke=C2=AE or Sprite
Zero=C2=AE) was added to powdered enamel (1 = mg enamel
powder/10 =CE=BCL of beverage) and vortexed for 30 s. The
sample was immediately centrifuged (11,000 rpm) for 30 s and
the supernatant was removed at 1 min 40 s. This procedure was
repeated five times with the beverage containing increasing
ferrous sulphate concentrations (1.25, 2=2E5, 5, 10, 15, 30
and 60 mmol/L). The phosphate released in the medium was
analysed spectrophotometrically. Data were analysed using
ANOVA and Tukey's test (p < 0.05).

Results

When iron at 30 and 60 mmol/L was added to Coke=C2=AE, a
significant reduction in the dissolution of powdered enamel
was observed when compared to control (11 and 17%,
respectively), while lower iron concentrations did not have
any effect on enamel powder dissolution. Regarding Sprite
Zero=C2=AE, iron concentrations up to 10 mmol/L had no
significant effect, while higher concentrations significantly
increased enamel powder dissolution.

Conclusions

The results suggest that iron can interfere with the
dissolution of dental enamel powder in the presence of acidic
beverages and the type of acid in these beverages seems to
modulate this effect.

Keywords: Tooth erosion; Demineralisation; Iron; Dental enamel

Corresponding author. Tel.: +55 14 32358246; fax: +55 14
32262076.

Archives of Oral Biology Volume 52, Issue 7, July 2007, Pages
614-617 Result list | previous
< 44of 92,037 > next

Copyright =C2=A9 2007 Elsevier B.V. All rights reserved.
ScienceDirect=C2= =AE is a registered trademark of
Elsevier B.V.

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http://www.just-drinks.com/article.aspx?id=3D86409&lk=3Dnd02

JAPAN: Coca-Cola's iron powder recall deepens 10 May 2006|
Source: just-drinks.com editorial team

Coca-Cola Japan has widened the recall of a swathe of products
found to contain iron powder.

Who loves ya. Tom

Jesus Was A Vegetarian! http://jesuswasavegetarian.7h.com

Man Is A Herbivore! http://tinyurl.com/a3cc3

DEAD PEOPLE WALKING http://tinyurl.com/zk9fk

[keystone]

"Conclusions

The results suggest that iron can interfere with the
dissolution of dental enamel powder in the presence of acidic
beverages and the type of acid in these beverages seems to
modulate this effect."

In other words, coke prevented it and sprite hastened it. Take
away message, drink coke.

This is another in a growing list for the justice hall of
shame special collection. These are chosen because they
demonstrate how many times the poster does not understand what
he posts and that in point of fact it often refutes at a
fundimental level his dearly held notion. That is that God did
not want man to eat meat, man is being punished when eating
meat by the reality that iron is the cause of all diseas.

One wonders what is the cure then for multiple self
adminstered bullet holes in the feet? Does it speak to lead as
another metal with special function in the divine plan?

[Brindal]

ironjustice wrote:

> Conclusions
>
> The results suggest that iron can interfere with the
> dissolution of dental enamel powder in the presence of
> acidic beverages and the type of acid in these beverages
> seems to modulate this effect.

So, like, duh, iron "can interfere with the dissolution of
dental enamel" means that the presence of iron can protect the
enamel of your teeth.

A good thing, in my view. I happen to like having teeth
in my mouth.

I wonder if you even read and/or comprehend what you post.

Brindal

[Gmcarter]

On 15 May 2007 15:15:29 -0700, "grubertm@gmail.com"
<grubertm@gmail.com> wrote:

>On May 14, 9:05 am, ironjustice
><teamtan...@hotmail.com> wrote:
>> Coca-Cola Japan has widened the recall of a swathe of
>> products found to contain iron powder.
>
>Based on that paper shouldn't they have recalled Sprite and
>added more iron to Coke ?

No. They should encourage people to avoid soft drinks as being
horribly fattening crap that's bad for kids and adults alike.

Or the diet stuff which is full of crap artificial sweeteners.

People are free to make choices though.

George M. Carter

[Grubertm@G]

On May 16, 2:15 am, GMCarter <f...@verizon.net> wrote:

> No. They should encourage people to avoid soft drinks as
> being horribly fattening crap that's bad for kids and
> adults alike.
>
> Or the diet stuff which is full of crap artificial
> sweeteners.
>
> People are free to make choices though.
>
> George M. Carter

Very scientific indeed..

[Gmcarter]

On 16 May 2007 13:46:23 -0700, "grubertm@gmail.com"
<grubertm@gmail.com> wrote:

>On May 16, 2:15 am, GMCarter <f...@verizon.net> wrote:
>
>> No. They should encourage people to avoid soft drinks as
>> being horribly fattening crap that's bad for kids and
>> adults alike.
>>
>> Or the diet stuff which is full of crap artificial
>> sweeteners.
>>
>> People are free to make choices though.
>>
>> George M. Carter
>
>Very scientific indeed..

Ah--based on some epi data that has linked soft drink use with
the epidemic of obesity, though you're right, as framed above,
it is my opinion.

So you can review some data below. Of course, this won't
sway your view if you're making a handsome salary selling
that shit!

George M. Carter

***
Malik VS, Schulze MB, Hu FB. Intake of sugar-sweetened
beverages and weight gain: a systematic review. Am J Clin
Nutr. 2006 Aug;84(2):274-88.

Department of Nutrition, Harvard School of Public Health,
Boston, MA, USA.

Consumption of sugar-sweetened beverages (SSBs), particularly
carbonated soft drinks, may be a key contributor to the
epidemic of overweight and obesity, by virtue of these
beverages' high added sugar content, low satiety, and
incomplete compensation for total energy. Whether an
association exists between SSB intake and weight gain is
unclear. We searched English-language MEDLINE publications
from 1966 through May 2005 for cross-sectional, prospective
cohort, and experimental studies of the relation between SSBs
and the risk of weight gain (ie, overweight, obesity, or
both). Thirty publications (15 cross-sectional, 10
prospective, and 5 experimental) were selected on the basis of
relevance and quality of design and methods. Findings from
large cross-sectional studies, in conjunction with those from
well-powered prospective cohort studies with long periods of
follow-up, show a positive association between greater intakes
of SSBs and weight gain and obesity in both children and
adults. Findings from short-term feeding trials in adults also
support an induction of positive energy balance and weight
gain by intake of sugar-sweetened sodas, but these trials are
few. A school-based intervention found significantly less
soft-drink consumption and prevalence of obese and overweight
children in the intervention group than in control subjects
after 12 mo, and a recent 25-week randomized controlled trial
in adolescents found further evidence linking SSB intake to
body weight. The weight of epidemiologic and experimental
evidence indicates that a greater consumption of SSBs is
associated with weight gain and obesity. Although more
research is needed, sufficient evidence exists for public
health strategies to discourage consumption of sugary drinks
as part of a healthy lifestyle.

PMID: 16895873 [PubMed - indexed for MEDLINE]

***
Fernald LC. Socio-economic status and body mass index in
low-income Mexican adults. Soc Sci Med. 2007
May;64(10):2030-42. Epub 2007 Mar
21.

School of Public Health, University of California, 140 Warren
Hall, MC 7360, Berkeley, CA 94720-7360, USA.

The study reported here explored the associations of body mass
index (BMI), socio-economic status (SES), and beverage
consumption in a very low-income population. A house-to-house
survey was conducted in 2003 of 12,873 Mexican adults. The
sample was designed to be representative of the poorest
communities in seven of Mexico's 31 states. Greater
educational attainment was significantly associated with
higher BMI and a greater prevalence of overweight (25BMI<30)
and obesity (30BMI) in men and women. The combined prevalence
of overweight and obesity was over 70% in women greater than
the median age of 35.4 years with at least some primary
education compared with a prevalence of 45% in women below the
median age with no education. In both sexes, BMI was
positively correlated with education, occupation, quality of
housing conditions, household assets, and subjective social
status. BMI and household income were significantly correlated
in women but not in men. In the models including all SES
variables, education, occupation, housing conditions and
household assets all contributed independently and
significantly to BMI, and household income and subjective
social status did not. Increased consumption of alcoholic and
carbonated sugar beverages was associated with higher SES and
higher BMI. Thus, in spite of the narrow range of
socio-economic variability in this population, the increased
consumption of high calorie beverages may explain the positive
relationship between SES and BMI. The positive associations
between SES and BMI in this low-income, rural population are
likely to be related to the changing patterns of food
availability, food composition, consumption patterns and
cultural factors. Contextually sensitive population-level
interventions are critically needed to address obesity and
overweight in poor populations, particularly in older women.

***