endodontie determinarea ll, instrumentar.ppt
DESCRIPTION
stomaTRANSCRIPT
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DETERMINAREA LUNGIMII DE LUCRU
(ODONTOMETRIA)
Conf. Dr. Ioana Suciu
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Determinarea lungimii de lucru
F, G: TriAutoZX
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Apex locator
• - masoara rezistenta electrica mucoasa – desmodontiu ( este constanta )
• - la aparatele de generatie noua - se determina coeficientul impedantei, concomitent rezist. electrica se masoara la doua frecvente diferite
• - influenta electrolitica a fluidelor din canal: neglijabila
• - atentie: stimulator cardiac - poate interfera
• - avantaje: timp de lucru redus
• iradiere absenta
• prezenta perforatiei prezumtive (poate fi evidentiata sau infirmata)
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InstrumenteA, B: ReamerC: Hedstrom-fileD: K-FileE: Hedstrom-fileF: ReamerG: Gates, NiTi-File
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InstrumenteA: ReamerB: K-fileC: Hedstrom+fileD: Flexicut, Flexofile, Flexoreamer, K-FlexE: Flex-R-FileF: Hedstrom-FileG: Ni-Ti-File (Profile) conicitate 4%H: Ni-Ti-GT (conicitate 0.6, 0.8, 10, 12)I: Ni-Ti Flexogate
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Preparare mecanica
PREPARARE MECANICA
A: G-G B: G-G, Largo, PeesoC: Endolift, Giromatic, Canal LeaderD: Lebtullo, Hedstrom-File, K-FileE: H, K-FileF, G, H: Sonic Air
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Curatire si modelare
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Crown-down
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Precurbarea
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Prepararea mecanica a canalului
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Instrumente Ni-Ti
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Lightspeed
A: 24B, C: preevazare cu G-GD: largirea apicala cu K-file 15 (largirea apicala cu 4 numere, step-back)E: prepararea apicala cu instrumente Lightspeed
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Lightspeed
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Quantec 2000
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Profile
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Ni-Ti-GT rotativ
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Flexmaster
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Kerr K3
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ProTaper
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Peretii laterali ai canalului
A-C: segment apical dupa instrumentareD-E: segment mijlociu
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Motoare ptr instrumente Ni-Ti
A: TCM Endo B: Endostepper C: ATRD: ATR VisionE: E-MasterF: Endo IT control