1
Pr
event
i
veDent
i
st
r
y
I
st
heempl
oymentofal
lt
hemeasur
esnecessar
yt
o
at
t
ai
nandmai
nt
ai
nopt
i
mum or
alheal
t
h.
Thi
scanbe
achi
evedbypr
i
mar
y,secondar
yandt
er
t
i
ar
ypr
event
i
on.
Thesepr
ocedur
escanbeappl
i
edf
ort
hecont
r
oloft
he
maj
ordent
aldi
seasessuchasdent
alcar
i
es,per
i
odont
al
di
seaseandmal
occl
usi
onaswel
laspr
event
i
vemeasur
es
r
el
at
edt
oor
of
aci
almal
f
or
mat
i
on,
or
alcancerandot
her
sof
tt
i
ssuel
esi
ons.
I
t
sai
m i
st
oequat
el
i
fespanoft
eet
ht
ot
hel
i
f
espanof
man. Pr
event
i
ve Dent
i
st
r
y can be accompl
i
shed by
concur
r
ent and cooper
at
i
ve ef
f
or
t
s by t
he dent
al
professi
onal,t
hei
ndi
vi
dualandt
hecommuni
t
y
.
Pr
i
maryPr
event
i
on.
I
ti
sconcer
nedwi
t
hof
fer
i
ngi
nf
or
mat
i
ononpot
ent
i
al
heal
t
ht
hr
eatt
oheal
t
hymember
soft
hepopul
at
i
on.Such
advi
cewi
l
lenabl
ei
ndi
vi
dual
st
oavoi
dunnecessar
yr
i
sk
fact
or
s,
t
hepr
i
mar
ypr
event
i
veser
vi
cei
st
hatser
vi
cet
hat
pr
event
st
hei
ni
t
i
at
i
onofdi
sease(
pr
epat
hogenesi
sst
age)
.
These ser
vi
ces ar
e desi
gned as ones whi
ch pr
ovi
de
heal
t
hpr
omot
i
onandspeci
fi
cpr
ot
ect
i
on.
Heal
t
hPr
omot
i
onact
i
vi
t
i
essuchaspr
ovi
di
ngi
nst
r
uct
i
ons
aboutpr
operpl
aquer
emovalordai
l
yf
l
ossi
ngar
edesi
gned
t
o pr
omot
e gener
al opt
i
mum heal
t
h i
n t
hi
s case
2
per
i
odont
alheal
t
hal
so di
et
ar
yadvi
cet
o cont
r
oldent
al
car
i
es.
Speci
fi
c Pr
ot
ect
i
ve act
i
vi
t
i
es i
ncl
ude t
hose t
hatar
e
desi
gnedt
opr
ot
ectagai
nstdi
seaseagent
sbyi
ncr
easi
ng
t
hesuscept
i
bi
l
i
t
yoft
hehostorbyest
abl
i
shi
ngbar
r
i
er
agai
nstagent
s i
n t
he envi
r
onment.
The i
ngest
i
on of
opt
i
mum f
l
uor
i
dat
ed wat
erand appl
i
cat
i
on ofoccl
usal
seal
ant
spr
ovi
despeci
f
i
cpr
ot
ect
i
onagai
nstdent
alcar
i
es.
Secondar
yPr
event
i
on
Theser
vi
cesi
nt
hi
sl
evelar
edi
r
ect
edt
owar
dt
hei
ni
t
i
al
st
agesoft
hedi
sease.
Theseser
vi
cesi
nt
er
veneorpr
event
t
hepr
ogr
essi
onandr
ecur
r
enceoft
hedi
sease,
t
heyar
e
desi
gnedasact
i
vi
t
i
est
hatar
eai
medatear
l
ydi
agnosi
sand
pr
omott
r
eat
mentofdi
seasei
nor
dert
opr
eventsequal
e
,
ex.
pr
omott
r
eat
mentofasmal
lcar
i
ousl
esi
onwi
l
lr
esul
t
i
nt
hepr
event
i
onofext
endedl
ossoft
oot
hst
r
uct
er.
Ter
t
i
aryPrevent
i
on
I
t
sser
vi
cesar
edi
r
ect
edt
owar
dst
heendr
esul
t
soft
he
di
seaset
heyar
er
efer
r
edt
o asr
epl
acementser
vi
cest
hat
pr
eventl
ossoff
unct
i
on,t
heseact
i
vi
t
i
esar
edi
vi
dedi
nt
o;
1-
Di
sabi
l
i
t
yl
i
mi
t
at
i
on.
3
2-
Rehabi
l
i
t
at
i
on
4
5
Theori
esofDent
alCar
i
es
Dent
alCari
es
I
sal
ocal
i
zed poster
upt
i
vepat
hol
ogi
calpr
ocessof
ext
er
nalor
i
gi
ni
nvol
vi
ngsof
t
eni
ngoft
hehar
dt
oot
ht
i
ssue
andpr
oceedi
ngt
ot
hef
or
mat
i
onofacavi
t
y.Ori
ti
s a
di
seaseoft
hecal
ci
f
i
edt
i
ssueoft
eet
ht
hati
spr
ogr
essi
ve
ofdecal
ci
f
i
cat
i
on oft
he i
nor
gani
c par
toft
he t
oot
h
f
ol
l
owedbydest
r
uct
i
onoft
heor
gani
cmat
r
i
xandt
heend
r
esul
ti
sdest
r
uct
i
onoft
het
oot
h.
Exogenust
heor
i
esr
el
at
et
hei
ni
t
i
at
i
onofdent
alcar
i
esi
s
out
si
det
het
oot
hwhi
l
eendogenoust
hef
act
ori
si
nsi
det
he
t
oot
hi
t
sel
f.
Themosti
mpor
t
antexogenoust
heor
i
esar
e;
1-
Aci
dogeni
c.
2-
Pr
ot
eol
yt
i
c.
3-Pr
ot
eol
ysi
s–Chel
at
i
ont
heor
y.
Aci
dogeni
ct
heor
yorChemopar
acyt
i
ct
heor
y.
Thefor
mat
i
onofaci
dbyf
er
ment
at
i
onofcar
bohydr
at
e
duet
hepr
esenceofmi
cr
oor
gani
smsi
nt
heor
alcavi
t
yi
s
t
he i
ni
t
i
alcause of car
i
ous l
esi
on,t
he aci
d causes
demi
ner
al
i
zat
i
onoft
hei
nor
gani
cpar
toft
het
oot
hf
ol
l
owed
6
bydest
r
uct
i
onoft
heor
gani
cpar
t.
Themi
cr
oor
gani
smspr
esenti
nt
heor
alcavi
t
yhavet
he
abi
l
i
t
yt
of
or
m aci
dsex.Lact
i
caci
df
r
om f
oodsubsi
t
r
at
es
cont
ai
ni
ng f
r
uct
ose and sucr
ose ,
f
or enamelt
o be
demi
ner
al
i
zedr
api
dl
yaPHofbet
ween4-
5.
2oni
t
ssur
f
ace
i
spr
oper
l
ynecessar
y.
St
ephanTest
Anexper
i
mentt
opr
ovet
hi
st
heor
yi
sbyr
i
nsi
ngyour
mout
hwi
t
hgl
ucosesol
ut
i
on,
t
her
ewi
l
lbeadr
opi
nPHof
dent
alpl
aquei
nt
hemout
hi
ncer
t
ai
ncasesval
uesof4.
5
bei
ngobser
vedwi
t
hi
n5mi
nut
esaf
t
err
i
nsi
ng,t
hant
hePH
r
et
ur
nt
oneut
r
at
i
ngaf
t
erhal
fanhour.
Al
so i
n suppor
t of t
he aci
dogeni
c concept i
s t
he
obser
vat
i
ont
hatl
ocal
i
zedt
r
eat
mentofsomeenamelwi
t
h
aci
dpr
oducechangesi
nt
hesur
f
acel
ayersi
mi
l
art
ot
hose
seeni
nt
hei
ni
t
i
alcar
i
ousl
esi
on.
Pr
ot
eol
yt
i
cTheor
y.
Dent
alcar
i
esbegi
nswi
t
ht
hedest
r
uct
i
onoft
heenamel
or
gani
cmat
r
i
xorpr
ot
ei
nel
i
ment
sbyact
i
onofenzymesof
mi
cr
oor
gani
smsont
heor
gani
cpar
tandaf
t
ert
hatt
her
ei
s
demi
ner
al
i
zat
i
onofsubsur
facel
ayerofenamel
(
i
nor
gani
c
par
t)
.
7
Chel
at
i
ngTheor
y(
Pr
ot
eol
ysi
s-
Chel
at
i
ont
heor
y)
I
nt
hi
st
heor
yt
hei
ni
t
i
aldemi
ner
al
i
zat
i
onofenamelsur
f
ace
maynotbeduet
oaci
dbutduet
ochel
at
i
ngpr
ocess,i
ti
s
possi
bl
ei
nl
aber
at
or
yt
odi
ssol
veenamelmi
ner
alatneut
r
al
oral
kal
i
ner
eact
i
onwi
t
hcer
t
ai
nchel
t
i
ngorcompl
exi
ng
agentexet
hyl
enedi
ami
net
et
r
aacet
at
ewhi
chi
sapower
f
ul
l
chel
at
orofcal
ci
um ,i
nwhi
chi
tf
or
m asol
ubl
enoni
oni
c
compl
exandi
twi
l
ldemi
ner
al
i
zet
oot
hatPH7.
4.
Chel
at
i
onhasbeenpr
oposedasanexpl
anat
i
onoft
oot
h
decayas t
he i
nor
gani
c componentofenamelcan be
r
emovedatneut
r
aloral
kal
i
nePH.