section_028_edentulous histology - tissue conditioning

8/12/2019 Section_028_Edentulous Histology - Tissue Conditioning

1/13

Section 28 - Edentulous Histology & Tissue Conditioning

Handout

Abstracts

001. Lytle, . !. T"e #anage#ent o$ abused oral tissues in co#%lete denture construction.

'rost"et (ent )*2)-+2, 1).

002. C"ase, . . Tissue conditioning utili/ing dyna#ic ada%tic stress. 'rost"et (ent 11*80+-81, 11.

00. a%ur, . and S"3lar, 4. T"e e$$ect o$ co#%lete dentures on al5eolar #ucosa. 'rost"et

(ent 1*100-10), 1.

00+. a6ano, 7. et al. T"e in$luence o$ so$t lining #aterials on %ressure distribution. 'rost"et

(ent +* 2+, 1).

00. atson, . !. and 9ac(onald, (. 4. egional 5ariations in t"e %alatal #ucosa o$ t"e

edentulous #out". 'rost"et (ent 0*8-8, 18.

00. Ettinger, . L. T"e etiology o$ in$la##atory %a%illary "y%er%lasia. 'rost"et (ent +*2+,

1).

00). Tautin, 7. S. S"ould dentures be 6orn continuously: 'rost"et (ent*)2, 1)8.

008. (u3es, !. S. An e5aluation o$ so$t-tissue res%onse $ollo6ing re#o5al o$ ill- $itting dentures.

'rost"et (ent +*21-2, 180.

00. Lytle, . !. Co#%lete denture construction based on a study o$ t"e de$or#ation o$ t"e

underlying so$t tissues. 'rost"et (ent *-1, 1.

010. Lytle, . !. So$t tissue dis%lace#ent beneat" re#o5able %artial and co#%lete dentures. 'rost"et (ent12*+-+, 12.

010a. !ouc"er, C. ;. (iscussion.12*++-+, 12.

011. elly, E. C"anges caused by a #andibular re#o5able %artial denture o%%osing a #a


2/13

01+. (es>ardins, . '. Etiology and #anage#ent o$ "y%er#obile #ucosa o5erlying t"e residual

al5eolar ridge. 'rost"et (ent 2*1-8, 1)+.

01. Le7eb5re, C.A., Sc"uster, 4.S., Caug"#an, 4.!. and Caug"#an, .7. E$$ects o$ denturebase resins on oral e%it"elial cells. nt 'rost"odont +*)1-), 11.

Section 28: Edentulous Histology/Tissue Conditioning

(Handout)

Handout not a5ailable at t"is ti#e .............

- Abstracts

28-00! "ytle# $!%! T&e 'anage'ent o abused oral tissues in co'lete denture

construction! * +rost&et ,ent : 2-.2# !

'ur%ose* t is e


3/13

correction o$ occlusion or ot"er de$ects causing instability

relie$ o$ %ressure area in denture

%lacing a liner to i#%ro5e unstable dentures and condition tissues

so$t diet to eli#inate eust#ent o$ t"e occlusionand %lace#ent o$ t"e conditioning #aterial in t"e dentures.

2. ;cclusion is t"e #ost i#%ortant $actor in denture $abrication.

. T"e continuous and si#ultaneous s"a%ing o$ t"e denture basal seat and t"e i#%ression

sur$ace o$ t"e denture under t"e $orce and #otion a%%lied to dentures is a "el%$ul ad>unctto t"e $abrication o$ #ore co#$ortable dentures.

+. (yna#ic ada%ti5e stress is not a cure-all $or denture di$$iculties, neit"er 6ill it

co#%ensate $or careless and inade=uate tec"ni=ues. 'ro%er "andling o$ t"e treat#ent

#aterial s"ortens t"e %eriod o$ conditioning, and better i#%ressions are %roduced.. 'ro%ortions o$ 1 %arts o$ %o6der to 1 %art li=uid is best. $ t"e denture is %laced in t"e

#out" too soon, #ost o$ t"e #aterial 6ill be s=uee/ed out. Ta%%ing t"e teet" toget"er too"ea5ily or too great a 5ertical o%ening 6ill lead to t"e sa#e result.

. T"e necessity $or ad>ust#ents o$ dentures 6orn a$ter treat#ent 6as caused, in decreasing

order, by t"e i#%ression, t"e occlusion, and curing , in a ratio o$ about +*+*1.

). T"ere 6as little di$$erence in t"e conditioning and i#%ression results obtained by t"edi$$erent #et"ods 6it" one eust#ents 6as 20B abo5e t"e a5erage. T"is #ay indicate t"atsu%erior i#%ressions are %roduced by t"e $orce and #otion deli5ered to t"e su%%orting

tissues by t"e occlusion o$ teet". !ot" t"e #ucosal conditioning and t"e i#%ressions arei#%ro5ed i$ t"ey are acco#%lis"ed in dentures 6it" a coordinated occlusion.8. (entures #ade $ro# i#%ressions $or#ed in old dentures re=uired slig"tly less

ad>ust#ents t"an t"ose #ade $ro# i#%ressions #ade in ne6 denture bases 6it" occlusion

ri#s. T"is see#s to indicate t"at occlusion o$ t"e teet" is necessary to con$or# t"ei#%ression to t"e tissue sur$ace in $unction.

Conclusion*


4/13

1. (yna#ic ada%ti5e stress %ro#otes a condition and a contour o$ t"e denture-base #ucosa

t"at are co#%atible 6it" denture $unction.

2. A non-setting #aterial 6"ic" $lo6s, yet is resistant, is necessary to utili/e dyna#ic. ada%ti5e stress.

+. Ea6 relations"i%s, t"e curing %rocess, and t"e coordination o$ t"eocclusion.

. (enture ad>ust#ents $or di$$icult %atients, 6ere reduced by t"e use o$ dyna#ic treat#ent.

. T"e treat#ent #aterial %er$or#s its $unction best i$ it is co#%letely re%laced about e5eryt"ird day.

). T"e tissue-conditioning treat#ent is an ad>unct o$ denture construction 6it" "ig"

%otential $or %ro#oting denture co#$ort.

28-005! 6aur# 6! and S&7lar# ! T&e eect o co'lete dentures on al3eolar 'ucosa! *

+rost&et ,ent 5: 050-05# 45!

'ur%ose* To in5estigate t"e c"anges occurring in denture-bearing #ucosa a$ter t"e use o$re#o5able dentures. A bio%sy study 6as conducted on t"e indi5idual %atients %rior to and a$ter

t"e use o$ dentures.9aterials9et"ods* T"is study in5ol5ed nine sub>ects Dages 1-+, eac" 6it" only si< anterior

teet" re#aining in t"e #a


5/13

'ur%ose* To eoining o$ t"e t6o se%arate e%it"elial /ones #ig"t "a5e %roduced a region o$ t"ic3ere%it"eliu# 6it" longer rete ridges.

2. T"e t"ic3ness o$ %alatal #ucosa 6as greater in edentulous %atients t"an in dentate %atients.

. T"e e%it"eliu# 6as t"ic3est at t"e crest o$ t"e ridge and t"innest at t"e %ara#edian sites.

+. T"e rete ridges 6ere longest at t"e crest o$ t"e residual ridge.. T"e e%it"elial #or%"ology 6as directly related to e%it"elial t"ic3ness.

. T"e connecti5e tissue t"ic3ness 6as greater in t"e region "al$6ay bet6een t"e crest o$ t"e

residual ridge and t"e #idline o$ t"e %alate.). Age and se< "ad no e$$ect on t"e %ara#eters, e


6/13

28-004! Ettinger# $!"! T&e etiology o inla''atory aillary &yerlasia! * +rost&et ,ent

5.:2.-240# !

'ur%ose* To describe t"e incidence o$ %a%illary "y%er%lasia and e5aluate a nu#ber o$ %ossibleetiologic $actors.

9aterials and 9et"ods* )00 edentulous %atients 6ere studied. 28 #en and +1+ 6o#en 6it" ana5erage age o$ 1.. T"e %atients 6ere %redo#inantly $ro# t"e lo6er socioecono#ic grou%s. T"e

$ollo6ing 6ere e5aluated* Stability, occlusion, eect o$ continuous denture 6ear.

7or #a


7/13

28-008! ,u7es# %! S! An E3aluation o Sot Tissue resonse ollo9ing $e'o3al o ;ll-itting

,entures! * +rost&et ,ent .5:2-25# 80!

'ur%ose* To #easure t"e c"ange in t"ic3ness o$ t"e so$t tissues $ollo6ing t"e re#o5al o$ ill-$itting dentures $or )2 "ours.

9et"ods and 9aterials* 1+ sub>ects 6it" ill-$itting dentures 6ere e5aluated using intraoralradiogra%"s to e5aluate so$t tissue and residual ridge.

esults* #%ro5ed color and $ir#ness o$ so$t tissues a$ter re#o5al o$ dentures $or )2 "ours.A5erage c"ange 6as 0.1 ##.

(iscussion* C"anges in contour, tone, and t"ic3ness o$ so$t tissues 6ere seen >ust by re#o5ing

t"e irritating denture $or )2 "ours.

28-00! "ytle# $!%! Co'lete denture construction based on a study o t&e deor'ation o

t&e underlying sot tissues! * +rost&et ,ent : 5-# !

'ur%ose* To study t"e e$$ects o$ %ressure on t"e de$or#ation o$ so$t tissues beneat" co#%lete

dentures.(iscussion* t is e5ident t"at %ressure %lays a role in t"e osteoclastic resor%tion o$ bone tissue. $

t"is %ressure is increased beyond t"e li#its o$ tolerance, t"en destruction o$ bone by resor%tion

#ay occur. T"e cause is %robably due to a circulatory disturbance in t"e nutriti5e tissue o$ bone

Die. in t"e %eriosteu# or bone #arro6."en t"ese e


8/13

T"en a second C record is #ade in t"e #out", i$ t"is #atc"es t"e sa#e recording on t"e

articulator, t"en t"e #ounting "as been 5eri$ied. ;nce t"is "as been done, a %rotrusi5e

interocclusal record is #ade on t"e %atient , and t"e condylar guidances are t"en ad>usted. T"ere$ine#ent o$ occlusion is carried out by selecti5e grinding to t"e desired occlusal %attern.

28-00! "ytle# $!%! Sot tissue dislace'ent beneat& re'o3able artial and co'letedentures! * +rost&et ,ent 2:5.-.5# 42!

'ur%ose* To deter#ine t"e #agnitude o$ so$t tissue dis%lace#ent beneat" dentures.9aterials and 9et"ods* Cast 6ere #ade o$ %atients 6earing re#o5able %artial dentures and

co#%lete dentures and t"en cast 6ere #ade o$ t"e sa#e %atients a$ter allo6ing t"e tissue to

reco5er by lea5ing t"e dentures out o$ t"e #out" $or 0 "ours. T"e di$$erence in t"e so$t tissuelocation 6as #easured. 'lastic %lat$or#s 6ere used in t"e %artial denture cases and a co#%arator

6as used $or t"e co#%lete denture cases.

esults* 'atients younger t"an 0 years old s"o6ed greater c"ange in t"eir so$t tissue $or#. T"e

greatest a#ount o$ dis%lace#ent in t"e #a


9/13

28-0! 6elly# E! C&anges Caused by a


10/13


11/13

. T"e ridge crest 6as considered nor#al 6"en it de#onstrated #oderate t"ic3ness 6it" rete

%egs o$ #oderate lengt" %lus a t"in 3eratini/ed sur$ace layer.

+. T"e a%%earance o$ t"e buccal e%it"eliu# 6as si#ilar to t"at o$ t"e crestal e%it"eliu#.. T"e nor#al lingual e%it"eliu# 6as t"in, rete ridges 6ere absent, and t"e sur$ace 6as

non3eratini/ed.

. @o statistical di$$erences in t"e e%it"eliu# 6ere noticed bet6een t"e t6o grou%s.). 9ore %ara3eratosis 6as seen in t"e nondenture -6earing grou% and t"e denture -6earing grou%

s"o6ed #ore non3eratini/ation.

8. Acant"osis 6as %redo#inant in bot" grou%s, as 6ere elongated rete ridges.Conclusion* 7ro# t"ese obser5ations it a%%ears t"at 6earing dentures is not "ar#$ul to t"e

e%it"eliu#. (i$$erences bet6een noncontrolled denture-6earing and nondenture-6earing grou%s

do not a%%ear to ebser3ation on t&e Hu'an Edentulous

$idge! +art ;; Connecti3e Tissue! * +rost&et ,ent 2:482-48# 8.!

'ur%ose* To obser5e t"e "istologic relations"i% a#ong all as%ects o$ t"e "u#an edentulous ridge.9et"ods and 9aterials* Sections o$ edentulous ridge in t"e $irst #olar region 6ere re#o5ed at

auto%sy %rior to e#bal#ing. Sa#%les 6ere $iects 6ere studied.

esults* ;n t"e ridge crest, a slig"tly greater but Dinsigni$icant nu#ber o$ %ositi5e res%onses

6ere seen $or t"e non-3eratini/ed sur$ace in t"e grou% 6it" dentures. n t"e non-denture grou%,t"e greatest nu#ber o$ %ositi5e res%onses 6as $or %ara3eratosis. Acant"osis and elongated rete

ridges 6ere $ound in bot" grou%s.

;n t"e buccal e%it"eliu#, t"e sur$ace 6as non3eratini/ed in bot" grou%s. n t"e non-denture

grou%, t"e e%it"elial t"ic3ness and rete ridge lengt" 6ere nor#al, but acant"osis and blunted reteridges 6ere seen #ore o$ten 6it" dentures.

(iscussion* E%it"elial tissue o$ t"e edentulous ridge s"o6s c"anges, but t"ere is no a%%arentdi$$erence bet6een denture 6earing grou%s or non-denture grou%s.

28-0.! ,esardins# $onald +! Etiology and


12/13

. atro%"y - decrease in si/e o$ any %ortion o$ t"e body could be related to* %re5enting t"e

%assage o$ nutritional ele#ents by, old age - decrease in blood su%%ly, disuse - narro6ing o$

blood 5essels, %ressure - co#%ro#ises t"e blood su%%ly.). resor%tion - loss o$ osseous substance

%arat"yroid "or#one - nor#al le5el is 10-12#gdl, "ig" le5els blood calciu# increases att"e eection o$ sclerosing solution*

B sodiu# #ort"uate


13/13

B sodiu# tetradecyl sul$ate

scar tissue $or#ed, $ir#er tissue on t"e ridge crest in +- 6ee3s.

28-0! "eeb3re# C! A!# et al! Eects o ,enture %ase $esins on >ral Eit&elial Cells! ;nt *

+rost&odont .:5-54# !

'ur%ose* To co#%are t"e bioco#%atibility o$ di$$erent $or#ulations o$ %oly#eri/ed denture base

resins and to e

section_028_edentulous histology - tissue conditioning

Documents