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Background and foreground questions
DH
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Dominic Hurst
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Updated Aug 10, 2021
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Chapters
00:00
Background and foreground questions
00:27
Background
01:12
What is the innervation of the mandible?
01:56
How does blood circulate through the body?
02:13
How do nerves work?
02:48
Foreground
03:03
How best to manage anxiety?
03:52
How best to prevent dental caries?
04:46
How much oral cancer is there?
05:16
Chapter 10
Audio Transcript
Auto-generated
00:02 - 00:05
in life or in our studies.
00:06 - 00:12
Um and as practitioners conditions, there are two fundamental types
00:12 - 00:14
of questions that were sort of interested in.
00:15 - 00:19
Um There are questions that we call background questions and
00:21 - 00:24
there are others that we call foreground questions, Okay?
00:24 - 00:27
And just kind of briefly kind of explained to just
00:27 - 00:29
so that you're sort of clear where we are.
00:29 - 00:38
So background questions concerned with things like anatomy, um or
00:39 - 00:43
the chemical structure of things, or the innovation of things,
00:43 - 00:46
those sorts of questions that are being pretty much put
00:46 - 00:47
to put to rest.
00:47 - 00:49
Okay, We kind of know what the answer is to
00:49 - 00:51
them. They don't change very much.
00:52 - 00:54
All right now, you know, that's debatable.
00:55 - 01:00
Somebody might discover some new innovation um, in a particular
01:00 - 01:02
person or a particular group of people, I don't know
01:02 - 01:05
right? But fundamentally the structure of the skull is pretty
01:05 - 01:09
much known, and there's not much that's going to really
01:09 - 01:10
change about the structure of the skull.
01:11 - 01:14
Okay, So the sorts of things that we might England,
01:15 - 01:17
you know, what's the innovation of the mandible, right?
01:17 - 01:20
You're gonna learn that um There are certain nerves that
01:20 - 01:25
supply the lower jaw, the mandible and the teeth in
01:25 - 01:28
it. Um And you know, you need to know that,
01:28 - 01:31
okay, we all need to understand and know what the
01:31 - 01:34
anatomy of of the jaws is, because we can cause
01:34 - 01:36
a lot of harm if we don't and we won't
01:36 - 01:38
know what we're doing if if you know if we
01:38 - 01:40
get stick local anesthetics in that kind of thing.
01:40 - 01:43
Okay, so we have to know this kind of background
01:43 - 01:45
information but it doesn't change very much once we know
01:45 - 01:45
it, we know it okay.
01:46 - 01:49
And you know, I can sort of go back to
01:49 - 01:53
my anatomy learning from 20 odd years ago and and
01:53 - 01:54
it's pretty much still the same.
01:55 - 01:55
Not much will have changed.
01:57 - 02:00
Mhm. How does blood circulatory the body?
02:01 - 02:02
Okay. You know, there's a way in which the heart
02:02 - 02:05
pumps the blood through the body goes around the body.
02:06 - 02:07
One way it goes to the lungs the other way
02:08 - 02:10
and you know, we end up with oxygenated blood passing
02:11 - 02:11
around the body.
02:11 - 02:12
Okay. That's pretty well understood.
02:13 - 02:17
And not much is going to change on that.
02:17 - 02:20
How the nerves work synapse, How does how does that
02:20 - 02:21
kind of work now?
02:21 - 02:27
Okay. People might discover new ways of managing how the,
02:27 - 02:29
you know the nerves work and and sort of altering
02:30 - 02:32
them. But those aren't background questions.
02:33 - 02:36
You know, lots of drugs for example work lots of
02:36 - 02:38
antidepressants and those sorts of things work at the local
02:38 - 02:41
anesthetics work on the myelin sheath.
02:42 - 02:44
Okay. And there may be ways of improving those, but
02:44 - 02:45
those aren't background questions.
02:46 - 02:48
Background question is how does the nerve work?
02:48 - 02:50
And that's pretty well understood.
02:52 - 02:56
So what we're mostly concerned within evidence based practice is
02:57 - 02:57
foreground questions.
02:58 - 03:00
Things that kind of might change and tend to change
03:00 - 03:01
as things develop.
03:02 - 03:06
Okay, so for example how might you best manage anxiety?
03:07 - 03:11
Okay. Is meditation is sitting and meditating, mindfulness, mindfulness meditation
03:12 - 03:12
or something like that?
03:12 - 03:13
Is that the best way to manage anxiety?
03:14 - 03:18
Or do you you know, do medications help improve that
03:18 - 03:20
or does physical activity help improve that?
03:21 - 03:24
And if there are new things being developed, how how
03:24 - 03:28
do they compare to things like meditation?
03:29 - 03:31
So if there's medication and there's a brand new super
03:32 - 03:37
duper drug out there that the manufacturers claim improves people's
03:37 - 03:38
anxiety then.
03:39 - 03:41
Well, how does that compare to not taking the drug
03:41 - 03:43
or you know, other existing methods?
03:44 - 03:46
Okay, so those are kind of foreground questions.
03:46 - 03:48
How best we manage anxiety now.
03:48 - 03:51
Alright. And given the sort of resources that are out
03:52 - 03:55
there or how best do we prevent dental carries?
03:56 - 03:57
This is fluoride varnish.
03:58 - 04:00
Dura fat is this sort of classic thing that we
04:01 - 04:02
use now, You know?
04:02 - 04:03
How best do we prevent dental care?
04:04 - 04:07
Is it by applying fluoride varnish every three months for
04:08 - 04:10
the rest of a child's life or is it or
04:10 - 04:13
hygiene instruction or dietary advice?
04:13 - 04:13
You know?
04:14 - 04:16
And if we're going to give dietary advice, how best
04:16 - 04:20
do we motivate a child and a parent change their
04:20 - 04:22
diet or an adult to change their diet?
04:22 - 04:26
So it's really kind of stuff that can potentially improve
04:26 - 04:28
because we know we don't prevent dental care is 100%
04:29 - 04:32
because we know that's why we're training dental students because
04:32 - 04:35
in hygiene therapy students because we know we're not preventing
04:36 - 04:38
dental care is there's still dental care is to be
04:38 - 04:41
treated. Um So clearly there there's room to be improved
04:42 - 04:43
their rooms to improve it.
04:44 - 04:45
That was the room to improve it.
04:45 - 04:49
Okay. It will change how much rural cancer is there?
04:49 - 04:51
Okay? You know, oral cancer rates at least back in
04:52 - 04:55
2012. You know, we're going up and why are they
04:55 - 04:55
going up?
04:56 - 04:57
Okay. That's that's changing.
04:57 - 05:00
Um I graduated well before that time.
05:00 - 05:03
If I was still working on the prevalence or the
05:03 - 05:07
incidence rates of mouth cancer Back in 1999 when I
05:07 - 05:11
graduated, you know, I would not be there with the
05:12 - 05:14
current data, which is obviously getting much higher.
05:15 - 05:19
So four grand questions are really quite the ones we
05:19 - 05:22
focus on there and you know, the basic science teaching
05:22 - 05:23
that you'll be receiving.
05:23 - 05:26
That's the kind of background questions that we ask.
05:27 - 05:31
But when we're thinking about evidence based practice and changing
05:32 - 05:34
our practice were and trying to keep on top of
05:34 - 05:38
new research, then were generally trying to answer foreground questions
05:38 - 05:41
things that are a current and and changing okay.
05:42 - 05:43
And we need to be doing that throughout our lives,
05:44 - 05:46
are practicing lives, so that was staying on top of
05:47 - 05:47
stuff.
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