Ocluzie adanca acoperita Flashcards

1
Q

Caracteristici Ocluzie adanca acoperita

A
  • supraacoperire F
  • retrodentie toti incisivi sup/doar IC
  • risc recidiva crescut
  • apare dint DT, se continua in DM si in DP
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2
Q

Factori generali ai OAA

A
  • Genetici
  • Prezenta la nou-nascut a relatiei capac de cutie a crestelor edentate
  • Existenta unei siderari a cresterii verticale a arcadeelor in zonele laterale
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3
Q

Legatura genetica dintre OAA si Prognatism adev

A

In acelasi arbore genealogic au fost gasiti membrii cu una sau cu alta avand drept element comun RETRODENTIA INCISIVIILOR SUPERIORI

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4
Q

Ce e Sindromul Cauhepe

A
  • interpozitii laterale ale limbii
  • supraocluzie incisiva accentuata
  • ocluzie inverxa unilaterala
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5
Q

Unde intervin obiceiurile vicioase prin interpozitie la OAA?

A

la nivel PM-M

produc infraalveolodontie

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6
Q

Cine produc inaltarile ocluziei?

A
  1. Molarii temporari- prima inaltare fiz
  2. M1p- a doua inaltare fiz
  3. M2p- a treia inaltare fiz
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7
Q

Caracteristici arcada maxilara

A
  1. Scurtata
  2. Trapez
  3. BP largita, adanca, cu versant anterior abrupt
  4. Proalveolie sup
  5. ILS in v-pozitie
  6. ICS=cingulum sters–angulatie c-r-“en pelle-in lopata
  7. ICs/L cu abraziuni palat
  8. Grade de inghesuire dentara(usor-grav)
  9. Baza apica dezv>baza coronara
  10. denivelare PO
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8
Q

Modificari arcada mandibulara

A
  1. Ingustata (diferente transv mari intre maxilare- progn. agravant)
  2. Retrodentie inf F/inghesuire- turtire arc dentar in reg anteriaora
  3. Curba SPee accentuata
  4. PO denivelat- suprapozitie dd incisivi
  5. Incisivii- abrazie vestibulara
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9
Q

Modificari ocluzie OAA

A
  • Supraacoperirea incisiva >1/3 ajungad la totala
  • Ocluzia distalizata (f frecv)
  • Inocluzie fiziologica> 2-4 mm
  • Alte modificari: angrenaj invers PM, ocluzie ling (ambele uni/bi), rapoarte neutrale la M, afectare dianmica mand orizontala)
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10
Q

Modificari parodontiu in OAA

A
  • nu prea sunt
  • apare totusi PARODONTITA CRONICA MARGINALA destul de des
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11
Q

OAA fizionomic

A

suras gingival

linie labiala inalta

linie suras asimetrica

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12
Q

OAA fonetic

A

voce inchisa

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13
Q

OAA masticator

A

masticatie de tip tocator

activitate crescuta a mm ridicatori ai mand

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14
Q

OAA deglutitie

A

palatala cu accentuare versant ant al BP

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15
Q

OAA ATM

A

Modificari ale partii temporale:

  • cavitate glenoida inalta
  • tubercul ant cu panta f abrupta
  • condil ingust si alungit
  • ramusra ascendenta mai gracila
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16
Q

Ce se vede pe OPG la OAA?

A

Rotatie anterioara a mandibulei:

  • unghi mand micsorat
  • condil inalt cu dezvoltare predom ant
  • curba preangulare stearsa
  • latime ram orizontal mand micsorat

​Modificare raport baza cor-apicala: apicala>coronara

17
Q

Ce se vede pe telerx de profil?

A
  • Unghi FMA micsorat, sub 22 grade- tipar hipodivergent
  • AFH: N-Gn redusa
  • axa y micsorata
  • SNB micsorat (VN= 80+-2)
  • unghi S-Gn cu Plan F= mai mic de 55 grade
  • unghi mand micsorat
18
Q

Ce indica studiul de model in OAA?

A
  • scurtare arcade (micosrare sageta sagitala)
  • perimetru arcade deficitar
19
Q

OAA adevarata

A
  • SiF mare
  • et inf f micsorat
  • deep bite scheletic accentuata
  • dezv execsiva verticala F (supraalveolodontie F)
  • hipodezv lat- infralaveolodontie laterala
20
Q

OAA falsa

A
  • SiF redus
  • et inf doar usor micsorat
  • seep bite scheletic diminuat
  • mecanism: excesdezv vert F- supraalveolodontie superioara
21
Q

DG diferential OAA

A
  1. malocluzie cls II/1
  2. malocluzie clasa I cu supraalveolodontie inc
22
Q

Cand e optim sa inceapa tratamentul pt OAA?

Dar la cazurile grave cu discrepante mari?

A
  • dupa eruptia Incisivilor permanenti
  • discrepante mari- in DM- cu aparate functionale
23
Q
A