Re: plz help with this question

[Guest guest]

C ref Oxford handbook clinical dentistry page 37Sent from my iPhoneOn 4 Mar 2011, at 08:39, "Sneha" <dr_snehapandya@...> wrote:

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

It was A sorrySent from my iPhoneOn 4 Mar 2011, at 08:39, "Sneha" <dr_snehapandya@...> wrote:

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

A...On Fri, Mar 4, 2011 at 8:56 AM, Weaksler <whikz_239@...> wrote:

 

It was A sorrySent from my iPhoneOn 4 Mar 2011, at 08:39, " Sneha " <dr_snehapandya@...> wrote:

 

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

I fell the answer is 'c' Ph drop after sugary drink is consumed.Shape of the curve is affected by a number of factors, including type of sugary food, buffeting potential of saliva, and food or drink ingested after the sugary challenge. Source: pink book , page 37.RegardsKeerthi kumarOn 4 Mar 2011, at 08:54, Weaksler <whikz_239@...> wrote:

C ref Oxford handbook clinical dentistry page 37Sent from my iPhoneOn 4 Mar 2011, at 08:39, "Sneha" <dr_snehapandya@...> wrote:

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

yup its C

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha

[Guest guest]

i think its A..Stephan's curve represents change of pH in saliva with time to test cariogenecity of diffenrent foods.On Fri, Mar 4, 2011 at 11:16 AM, ainy iqbal <dr_ainyiqbal@...> wrote:

 

yup its C

 

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

i think it is A As the curve shows the change in ph at diff. time intervals after sugar intakeOn Fri, Mar 4, 2011 at 11:25 AM, Nituna Agarwal <nituna.agarwal@...> wrote:

 

i think its A..Stephan's curve represents change of pH in saliva with time to test cariogenecity of diffenrent foods.On Fri, Mar 4, 2011 at 11:16 AM, ainy iqbal <dr_ainyiqbal@...> wrote:

 

yup its C

 

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

a for sure, just look at the graph labeling, its ph over time

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

hi ans must be Bcoz it is the ph of plaque which is measured in stephans curveref. clinical textbook of dental hyegine and therapy pg166

On Fri, Mar 4, 2011 at 8:39 AM, Sneha <dr_snehapandya@...> wrote:

 

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

you're right..its pH of plaque..so B is the right ans..On Fri, Mar 4, 2011 at 12:09 PM, shilpa shrivastava <shilpa.20shrivastava@...> wrote:

 

hi ans must be Bcoz it is the ph of plaque which is measured in stephans curveref. clinical textbook of dental hyegine and therapy pg166

On Fri, Mar 4, 2011 at 8:39 AM, Sneha <dr_snehapandya@...> wrote:

 

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

hi all,

its A....the curve states that u ve ph on y-axia n time on x-axis...it states that a the intersection of both axes ph is approx 7(neutral ph of saliva)....approx 10 min after consuming sugars the ph drops below the critical ph (5.5, below which tooth demineralisation starts)...30 min after consumption there is again ph elevation denoting remineralization....there is no doubt that the curve indicates fall in ph after sugar intake but it is plotted against time...so the option should be A...change in pH of saliva with time...hope this helps n clears the air...

all the best

regards

pavan

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha

[Guest guest]

the only difference is..its pH of plaque and not of saliva..On Fri, Mar 4, 2011 at 12:32 PM, dr pavan <drpavan82@...> wrote:

 

hi all,

its A....the curve states that u ve ph on y-axia n time on x-axis...it states that a the intersection of both axes ph is approx 7(neutral ph of saliva)....approx 10 min after consuming sugars the ph drops below the critical ph (5.5, below which tooth demineralisation starts)...30 min after consumption there is again ph elevation denoting remineralization....there is no doubt that the curve indicates fall in ph after sugar intake but it is plotted against time...so the option should be A...change in pH of saliva with time...hope this helps n clears the air...

 

all the best

regards

pavan

 

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

ph of plaque is right ansOn Fri, Mar 4, 2011 at 12:42 PM, Nituna Agarwal <nituna.agarwal@...> wrote:

 

the only difference is..its pH of plaque and not of saliva..On Fri, Mar 4, 2011 at 12:32 PM, dr pavan <drpavan82@...> wrote:

 

hi all,

its A....the curve states that u ve ph on y-axia n time on x-axis...it states that a the intersection of both axes ph is approx 7(neutral ph of saliva)....approx 10 min after consuming sugars the ph drops below the critical ph (5.5, below which tooth demineralisation starts)...30 min after consumption there is again ph elevation denoting remineralization....there is no doubt that the curve indicates fall in ph after sugar intake but it is plotted against time...so the option should be A...change in pH of saliva with time...hope this helps n clears the air...

 

all the best

regards

pavan

 

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

I found something on web.Hope it helps....

At Time = 0 the baseline pH of plaque is taken (approximately pH7) . A sugary intake is consumed and the pH drops to around pH2-3. This is below the 'critical pH' of enamel (pH5.4). The critical pH is the pH below which enamel will begin to dissolve. Gradually over the following 30 minutes the pH of the mouth begins to return to neutrality and the dissolving of enamel ceases and the products of saliva can begin to remineralize any dissolved enamel.

If sugar is frequently consumer throughtout the day then the dissolving action of bacterial acids will probably lead to tooth decay.

The principle of Stephan Curves is to assess the cariogenicity of different foods. It awards the " Toothfriendly Logo " to those it considers not to cause caries or erosion.

http://www.ncl.ac.uk/dental/oralbiol/oralenv/tutorials/stephancurves1.htm

Rossana

On 4 March 2011 12:42, Nituna Agarwal <nituna.agarwal@...> wrote:

 

the only difference is..its pH of plaque and not of saliva..On Fri, Mar 4, 2011 at 12:32 PM, dr pavan <drpavan82@...> wrote:

 

hi all,

its A....the curve states that u ve ph on y-axia n time on x-axis...it states that a the intersection of both axes ph is approx 7(neutral ph of saliva)....approx 10 min after consuming sugars the ph drops below the critical ph (5.5, below which tooth demineralisation starts)...30 min after consumption there is again ph elevation denoting remineralization....there is no doubt that the curve indicates fall in ph after sugar intake but it is plotted against time...so the option should be A...change in pH of saliva with time...hope this helps n clears the air...

 

all the best

regards

pavan

 

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

BFrom: Sneha <dr_snehapandya@...> Sent: Fri, 4 March, 2011 3:39:23Subject: plz help with this question

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

The Stephan Curve describes the change in dental plaque pH in response to a challenge. The type of challenge does not matter but it is usually some element of the diet. On the other hand the challenge could be an inert substance placed in the mouth with the aim of determining its effect on plaque pH. For example, mechanical stimulation of the salivary glands caused by masticating chewing-gum base. This would be of interest in an investigation into the effect of saliva flow on the pH-changes happening in plaque after a challenge by a cariogenic food.

Rossana

On 4 March 2011 12:50, Marcela <marcesanchezf@...> wrote:

 

B

From: Sneha <dr_snehapandya@...>

Sent: Fri, 4 March, 2011 3:39:23Subject: plz help with this question

 

HI,

What will be the answer?Plz suggest reference also.

Stephan's curve represents

a)change in pH of saliva with time

b)change in pH of plaque with time

c)change in pH of saliva with sugar intake.

Regards, sneha

[Guest guest]

I want to make correction sorry its not C

its B

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha

[Guest guest]

all this has simply ceated more confusion...i always thought its A but now im

forced to think it can be C also.

please give only definite answers

>

> HI,

>

> What will be the answer?Plz suggest reference also.

> Stephan's curve represents

> a)change in pH of saliva with time

> b)change in pH of plaque with time

> c)change in pH of saliva with sugar intake.

>

> Regards, sneha

>

[Guest guest]

its B..On Fri, Mar 4, 2011 at 2:06 PM, nishu <drnishu22@...> wrote:

 

all this has simply ceated more confusion...i always thought its A but now im forced to think it can be C also.

please give only definite answers

>

> HI,

>

> What will be the answer?Plz suggest reference also.

> Stephan's curve represents

> a)change in pH of saliva with time

> b)change in pH of plaque with time

> c)change in pH of saliva with sugar intake.

>

> Regards, sneha

>

[Guest guest]

yes its ph of plaque and time

From: shilpa shrivastava <shilpa.20shrivastava@...> Sent: Fri, 4 March, 2011 12:45:47Subject: Re: plz help with this question

ph of plaque is right ans

On Fri, Mar 4, 2011 at 12:42 PM, Nituna Agarwal <nituna.agarwal@...> wrote:

the only difference is..its pH of plaque and not of saliva..

On Fri, Mar 4, 2011 at 12:32 PM, dr pavan <drpavan82@...> wrote:

hi all,

its A....the curve states that u ve ph on y-axia n time on x-axis...it states that a the intersection of both axes ph is approx 7(neutral ph of saliva)....approx 10 min after consuming sugars the ph drops below the critical ph (5.5, below which tooth demineralisation starts)...30 min after consumption there is again ph elevation denoting remineralization....there is no doubt that the curve indicates fall in ph after sugar intake but it is plotted against time...so the option should be A...change in pH of saliva with time...hope this helps n clears the air...

all the best

regards

pavan

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha

[Guest guest]

Hello!!! it is B

"The change in plaque PH may be represented graphically over a period of time following a glucose rinse. Such graph is called a Stephan curve, after the person who first described in 1994"

Essential of dental caries

Third Edition

page 7-8

thanks

Rosy Naranjo

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha

[Guest guest]

Rosy you are right.pH of Plaque against time, hence B is the right answer. I was wrong thought its C.Reference: Pickard's Manual of Operative Dentistry, Oxford press 2011, Chapter 1 Dental Caries, page 3.Best,HassanFrom: rosy naranjo <rosy_naranjo@...> Sent: Sat, 5 March, 2011 12:46:40Subject: Re: plz help with this question

Hello!!! it is B

"The change in plaque PH may be represented graphically over a period of time following a glucose rinse. Such graph is called a Stephan curve, after the person who first described in 1994"

Essential of dental caries

Third Edition

page 7-8

thanks

Rosy Naranjo

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha

[Guest guest]

Hi, Thanks to all.

Regeards, sneha

From: Hassan Al-mufty <hassanalmufty@...> Sent: Sun, March 6, 2011 7:30:57 AMSubject: Re: plz help with this question

Rosy you are right.

pH of Plaque against time, hence B is the right answer.

I was wrong thought its C.

Reference: Pickard's Manual of Operative Dentistry, Oxford press 2011, Chapter 1 Dental Caries, page 3.

Best,

Hassan

From: rosy naranjo <rosy_naranjo@...> Sent: Sat, 5 March, 2011 12:46:40Subject: Re: plz help with this question

Hello!!! it is B

"The change in plaque PH may be represented graphically over a period of time following a glucose rinse. Such graph is called a Stephan curve, after the person who first described in 1994"

Essential of dental caries

Third Edition

page 7-8

thanks

Rosy Naranjo

HI,What will be the answer?Plz suggest reference also.Stephan's curve representsa)change in pH of saliva with timeb)change in pH of plaque with timec)change in pH of saliva with sugar intake.Regards, sneha