Bioloqy of Poodortal tsy

Peio Arund.
the te.
odont To oth bppahq

teminl eds of prinipal

inbt ioto comatn{
POL that
of ledan bo
into peicsteum
qingival he olal meCaa
Pat of
qingiva
Cmookatsy mu wsa) that
Cono
&weml
alnea pfocers
the
mu Cosal

meosa Spechalo mucosa

Raokcatdey
(25. ).
Hard palat 4tyes
paiua

Maccscpic teahns!
rangino
2) Attahd gingiva
3) Sotuduntal ginga
 ehad atta
Attahed
buleus
3m deph Probig ’
a notmal clinically
shaped y'
toopica emtendo which
. juncboral Coie
igiva tthe thtoo dafnd thblw
allo bpac
d the
sulubo'. val qirgi
egow 1emole mandmdlan
es cadl buc onreqion premola
nss mand io mst
gvore trea
val gingt ’cintaiy,
t
ar shalen
d depresiom toshio
swndig qingalie
a inteeth the
ar Cd
boden tenna!
 2Pat the girgiva Hat i
Yeoibent. tiatty beaund to wnduyig puisteumg
of alear bone
’9t emterdo up to loe e moabe alnlan
mucosa demancatad by nq (muco al lntn)
’Palatal’ mts wik palat!
Ly No mulogingiva ne .
Ataced qingive mucod.

Sottbu 3hppud. Smooth e shiny

teitu

pikelsun karatnd|PaNon kenataniyed

onnech , i bes ae t ao Hole eaohc bfco)
(oosely awergd (oosty c e d .
toduat blod de blood veslo
width ot AHaeted qia
Dutane bluo nqT k pejechon cn efona
buxtae
th bottom of
qigia bulus
pexisdontal poctet.
’ freakot mau antd reglon-3S-4mn.
Q seostoot to abraoron.
 too/
inundersta blw located
Point Contat
lapapi danlal intor Tip -Cas
dlal ioten apical
to
area
enire the
lapopiotendenal Posihn
tgpenic’ 4
thatered posteud
’
’pyrnsd Antew d ’
epihelum
qingial ’
d. non
CD:
Co(3)
diastra Hbsun apiUa ()tacel
girgivo
botednlas
rrgeattached qjval (al
widh
of deph Pockat d
attachmunt
Los
Pret
’Helpo
to
atacmd tse onnechn io
’Prorideo
base bolid
gra mongina
suwppot Predes ’
to
alna
moa
muslo
adaent cyeated
by Ragin
of
to
runchon
atached
 ceJ

gnterda
Comtact
Jclaa
Poiol
Youndad
elet
iotenGalllan
uldane
Ces
roponsiLu emb
40tat
onpskh

gngival bult

tato too
ot tot
al

hape

Mariseallpde
ggtnie
edyed slape.
PyYemid
Ant’ irm
Yeoilimt
pink
Chal blape
>Tent
pbt
tat
Nomal.
Stppy
Ppilla
Lotndo~

teda
Costen
y Peikon
teh Sutaa
Conto
2)
 Micrsop ie feats (Stahi
fetrah jed
id Bqamos epitdn

2)Sudeuslan epitu
3) Junchonal en:L.l.
epilum Non kwabrisd epi Hlim.
ToteaJLox hrucho'
Tonofibrib!
baoal alls
’Ruqulany tonotlment meas
Deomoms; laula
Snm in diogt

Anchaiq bris
l mwb
(onta or
sulelar
Thaee diotnt hats blw sas
cHonal epi Hlum.
epiialum junctinal epc thelium is
’Siye of callo io th than in sal
tsue vsum, lager
relate to
ulcula epittim ncbornal phehim
’Inter allula 8pacs
than io dal epithlim
io wid
in dal epi kliwm
s l l r e junchoral epi hilim.
absent o
al &out epihali m

attahad gingie
Hobt katad - Palat Cet.
luast -Vental aspet of toy
 itoelandaa.
’ytoplaom
ente
basad
do last is uclus
led. trom
lesplak fid they
tad chady yn Yelatd
to
nat.bodieo
Loaloyalnof
qranlbum oBrahm
deonneo
spao elular iter ’allo
by
anohur nattad
to ae
5pio eoembing
prouytoplaomic sht th wi spindh Shah
l a ullsSp spindwm!-
Pritle
praplst Aeid
mebta band tey
epihh atah ( desalama
srs to cald Zones
zoepias
haallo damechchon
Celectroluent
yo
4)(yoo Qucida lana
benat .Baoal
Carbohcras
har
atls. bridal qindical ’
300-400
A.
qermie shehun basal'- Shatm
3tsehum 4)
qTamulem Styatm 3)
bpinoam Stratum 2-)
baal Statm )
theum watand
epirasnisd
Deomeso
 lal bulula epitheliwl
>Sayt call

sonally bulelar apiehm, om qigva

mangia to juncoral epilm.

not y konaid.
&enbit a
’ ate tLaten

kataabon.
7No eaula ret
late peIJal
but Hy tom l
iotamoton
Jusiral epi taliuon ’nonknah

qingiva
han palat
preoent in baoal Lay.
cls,
aranoytu prtn cple okl alo, elanot
Lnabnot langhudan llo,
Non

byranbabon:
Hapholoyicd oge
Biscloms Lany Ticanbah
baoal l day
Junchonal epiebum!.

Dentogngadi t attarhd.

Glgialtilses lamha ds

(Hemdrdone.
 3-4lag upsal.
to I3S mm

calls.
Bupabaad laguo (antundiyihaben,
Apicay Guabom plagocyreacinty
Te gondoPrable
>mdd ’ Aheba

ymphoyte
Pensbeo don omes
’de iotralla
moe e l o , Yatt
thuu be
than cap,banio d l a t e .

Non katno to t
ls spe locatd in baool
Melano ybo- Dendeite epilhm
layro gingial
Bpinm
melanin pitmet
mehasomeo Tyvosiaasn
’ Nnas
Piqdhahenalne.
melae

Pfeoent in Guva Buceal

 non lamad.
’ Callar uke bad ’ styat ee
’3-4layeanly ay’ 1s-26 lags cpa.

tom to I3 S mm
vang
cells
Bupabaa tae (gotudgaboy.
pkasocheactntg
Apicay Guoabom

mitdl Adhb)on

Pemsifeo a deomnabeomes
cho
ide iotualllan jun
be moe
venlo, YattU

laxte
than Cap.hanio d
Non kerabnoto
Melanoytos-Derdeike als locatd in baool l

ggval eprm
Spinou laromelanin
’ Nummas mehansomeo Tyvaslran .

Didhaphenali
melet
han
Pedat e tongu
Lannam
ham immunologic hnhon, ieyvecogog

-speije rando (BYbek oda

’hey Contoin 4
R han AgP a chy
gtva
Pound in dal epium of ndmal epiKlm.
amaut in bulelar
bmall

’lo catt
>Tatiu Yeaotsto>reopord to sbhmas
- Blamatty llal
Lymphoufts
Fbrw
Princp brw
bo (s).
Dentogiivad ti bres!
’Preject tom emunkum in

toand cst
buppdt

atend trom pisteum

Cot lama popia.
’ AHau bon
 edtemn aldan bone
’Arotet POL
Cireular bres'
’ Sumnd too th
manginal attad itva
thnat
Transtgtal ibeno'
’Cocat inturprondnaly etend om amntn
a one toon fo ano hen to o
’hotet iotepYomel bon

JYarpyl

BlooD yMPuosc sureL y

rainy avean andene
’ Sa Jupra peni dteas
atenide

Mental tadal l but Cal ene

ymphahe dat
Labial
la deepCcal Lnph nods
palatal L manila Bub mandi
bulan
Premdano mda both
mamal mardb
Poiolontal ioamd stuhune Hat bwat

9PoL io Connecu tne

Connelo
Shruhne' naast at mìd ro lemel
2
’ 8hape of how glas
o25m mt s o .
’width

Cellula Compcoi h'on

PpL
ostetlasto
Jyntehc Cello fibro blast
Comento blast
clls doteolast
Cametolaoto
ibroblas
Pro geitt alla
othn epihia allo > ipihheial call Yesto ala
Conneche hssue allo-’ at llo k mauydaco
 fae od alroan bony
piodotal persteum
’ Aotan ontans erdosteun l
bone Contain
Pibroblab
’Mt promhet
-’ Hain Anen produchon ot Yatiu fyeed
ibew
letiul bes
ontalm ibes
elastin

bvil,
Colaym (bundlea olloy
Protoibri lo
Comentn.

stcocasia' mltiauclakd.
bou ACanye e
’huy reodb the monoet
ementohash
not emodlad
emenum Conha!
but undgo
alro boe
located i hahps auna
e
- metoclaoto
Fibrobleotb
redphon
Boh of
’hey han tagmt
 >Akalne
ligament ibvoblasto
too prep anabo
’Pionital allo
> Mast calls
’kalately mall, und o oval clls tag
ot almt l2-15
|2-15 m
Contan cytoplaomi grando
ourd nueleo
>4ramals hae hepan l tistamine.
’Phyioloqical ou ot
You ot hepe s no t tme

reopone to, anhqn- antboy

deqralat in
totmation suntaca
TManophayi
Dhey Capblk ot plopa,has
Peiodental t bres
prinipa t breo
Most inpltant thede prioupbl
- e temal potto
Camenhum
bes that i n t ioto
shanpy's bes Putbng
Calid
olarpey's bes ae

coe intealo ampad to . almesan hoe

 ibreo contan Tyees Cloyn,
->hincipl basa
ibeno ae
Prioipal bens of POL
Transesptal qroup

Hsigont

’gotun Yadliulan ibers

qigira
Cemento
eramay,
jcha
Alean cveot fibn
war cveot.

4rnd subshama.
Proteogycandy 4ycopoes
Transsptad bs.
teh ioterprmal
Suppad io aloo calleA
Aben qroup io loo
’his
noan ust ibe
y Yum trom Commertm in apical clirehon
to aldan cot
ot too h e reoat latena
’hey
too th
Prt
monned

oblqCemenhem to aleetan bon io cotonal diveton

nben,
’Reoot mashcatsy
osgeta om lamentum to
t right angl
alnelan bone
pi cal tbre !
root en
’reot otahon f tooth.
Lotuyoice tibuo!.
dcoom
tromn Comenhm to
mulirootd teth
of prnupal t'b of POL
Delop ment
Strucs
Blood mm Sup.oloen ailla
9nyud abedar fo dantal pulp
’ Apical eneo
-’ Baod suppy
tree enr
Noci eptdo
mechans eeptos
 PoL

tumcson
Homeostte
(Pysical: to protelt
OPranides
to H bo. hen
ocluo tsc
(2)Transit appied the tookk ofato
eisontal o fi ppig ttu
'hr r d amis
amis anea.

elhYoa fed ’ Anis ito bo

’Attaches tet te impat of
’Shock cbodpkon reolab
oclual
Tensienadtckg:
’Priscpal tibro play
appied, priniaa! 4bres
to aheoy'
tyamnit the
visso elashe thesy! the diplamt
nonemet langdy lontoto
’fuid playing secondoy roe
of toohy
hbers stens
blood nes
temat tole ’ u d ballog oftny Tusn veplielo
Atsteva bak p n e

ha Capa ut to
Comentum, ligat
’Cantant reroclng
bYo bun denn Yeplaad by nw
Nutrial
hane ich vaslan spply
nutCm Comenhwm, bon 2 ginga
SNee bundl olos the puiapical
ves o entes PO kom
Dlood bo
bone
Chamlo ton allan
thnh chamneo besaom.
Cndra Pain
7 ee
mnechano recepko Apical anea

KHai ike ksto hanoyeep

Meson's cotplBelo' ’ Me

’3mall diamt ne
Pa'n ype
Temp’ 3otenedial
Hones fahe! enheclla
the
Can
POL, alran b higest hn
bubs tana of PDL liGamut has
Connech
Conpad fo al
rat m m.
POL.-o.1S-o.3
IOTH OE -32-5o y
’||-l6 y o j o-t mm
. 2 | mm

bo manla Q merddu
the pothon toofh socket Cald)
Tt
to promide
when too th eeyus to
ssems ttachmt
’Rodes hruing
Ahchds
mormed d i
beatt
bstb distibut.

Panto.
Cascal plat
the doch
)Bone ig
s ) An inted

lam da
’1rabe ala bu
Conpact bae

Canle ha:. habear

iNeqdar bo nehwetk
ot na fotm a
’ Consiob
hrabealan
by

Bultal t tnterdaal

Dotudtad brptum!
paxkhen ttat apenek
 tpa ape thicks
tucioling ual
the in tendeal oept te
poibon of
2 adjacod
teh in ja
Trabellan pcttuns! toabela
iotun odidon

Tees ’ 9rregulanya d reilo

A nteeadilo oabe ula
ompsihon!
dblad oeolesto, steoats
Cello steobloto

Tyeee calar
P ote oglycas, Be
steotlasti
’Cuboidal alls vesi.
opparato. e deeutty
a lange Golg bone matri Csteod) ; Tyee colon,
minenalaha
and requlat. ito
’BacA stesblast larvveo
eith bui Os C
bthob ch as reot d inah stesla

leired dom poqenite

o bane mesenhya al
to
belog
 Steoclads- ateocylo
Foneohrakes
isolate4 wstich
e

o Conenud only by pui oleum

the root bnfaa
io thes
sihuat Os the
and qigiva,but
emaus iotat
mavgirad bone is
loo demad,
’Whem the marginal hon
io Cualled datsena.
the duyet moe on lacia
facia bon
dyto Comnon in anteu
lingua e. mou
teh ban on postou d.
alpd bon
¬halo
8ome
a o ane
Toot prominena,
wih tin by plat,

’ temesada
7phscence

reodphon h a Camplen pes

Houshs laua > Boe

’ Mor la.
an
 Ankylosi
’Fusi on
o, of Comm
to alrestan bon

with duteuaton of PDL io Callad anby osis

Cause iolude
peiapcal inyecten
2) Toot reimdantation.
3) oc lusal
4) Embedded teath.
Comenhm mesenhipral t u e
Cal ijedJ avaoulan anatomie
of
out Coning
that Ams the to prinpal
anchae malnby
Abe of PDL: be

in Conenm.
9otrnie beno
hanpey ; bans (eutinbic)’
Calan semeu.
Aalluon
Cemenhm.

’Poms d g
to tunchorad dema.
’ Contans cemento
pical
Pson of roof.

trreguday avarpa
 Bone tH enho
o not lianly laeny lennale.
lemicalrd
’9nrementa) Wnes
slasy cosed relatrely wide apnt
’ Precenonhm loen erecanenmn La

’de cale

clamiabon
Acelluda yibri lay Comohm!
ony mnalise qrund substana
’Contolns
sbitcelllan entnsic ibe
Camehn:
3)llan mned
) lllan oinsic
s)90temediat cemenhm
funehons
promde anh to too th.
’ L t is
oc lual velop.
’Rantug
'9oids
te odt
helpa
orpcsihon mattn
[qnie
’ Bo th n dayoe (y6).
matr ’ 9o). tyeî olon.
S/. ty pe collajun.
Nonclogons plots ’Temasun, khyenchn.
Duratan salfat , hpanan dul fat
 blw eied cal
sGot ocelved alls 'ant icleal Comento
chot
bod al ihtromradiahg caral' hane ’hey
aentocyo calld
emehm atlular into
kandis pys roten 4ollay syten
anatin mitotondia,
Golgi hane ’hey
meoenchpal
alls
’mento
blaot
hnt's iobreak >Atte
bheth toot hlasts' Comento
collogn
votume til sulot Heporan
emtiaclluley Compet
of
matin. chn
’(Fibren
ttaned ioHelp
clls onechn te b
protenGyCosylatid
grerrt
chomotacbe
ostecponhn ’
pinvabmh tnihadnucatet
io bialopoten! bon
Commentoclasts
Comenei colPvoteha)
lognens CNon-
Cormerto
Hatr
Shuchu