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realizazione protesi fissa su impianto

MARTINA CORIONI

Created on April 8, 2025

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UDA

realizazione protesi fissa su impianto

Corioni Martna

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Indice

SMD

Diritto

Gnatologia

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impianti nel settore dentale

L'impianto

Nel settore dentistico, gli impianti dentali sono dispositivi utilizzati per sostituire uno o più denti mancanti in modo stabile e duraturo. In pratica, un impianto è una sorta di “radice artificiale”, solitamente in titanio, che viene inserita nell’osso della mascella o della mandibola. Su questa base viene poi applicata una protesi, come una corona, un ponte o una dentiera fissa. funzionamento si basa su un processo chiamato osteointegrazione, cioè la capacità dell’osso di aderire all’impianto rendendolo solido e stabile, proprio come una radice naturale.

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componenti

Gli impianti dentali sono costituiti da diversi componenti che lavorano insieme per sostituire un dente mancante. La parte principale è la vite implantare, inserita nell’osso, a cui si collega un elemento di raccordo chiamato pilastro; su di esso viene infine fissata la protesi, come una corona o un ponte.

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impianti dentali

impianti monofasici

Si tratta di impianti monopezzo, cioè costituiti da un’unica struttura in cui la parte inserita nell’osso e il pilastro che sporge nella cavità orale sono uniti. Il termine monofase indica che, proprio perché impianto e pilastro formano un solo elemento, l’inserimento avviene attraverso un unico intervento chirurgico..

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impianti dentali

impianti bifasici

Negli impianti bifasici, detti anche a due componenti, è possibile adattare in modo efficace la struttura del pilastro alle necessità protesiche del singolo paziente, come nel caso di corone e ponti. Questo tipo di impianto prevede inoltre una fase di guarigione senza sollecitazioni funzionali, durante la quale l’impianto resta protetto e non sottoposto a carico. Generalmente, dopo un periodo compreso tra 3 e 6 mesi, si realizza un legame diretto tra l’osso e la superficie dell’impianto, processo conosciuto come osteointegrazione.

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requisiti minimi per la progettazione del impianto

Requisiti medici principali
  • Buona salute generale
  • Niente malattie gravi non controllate (es. diabete non controllato)
  • Gengive sane
  • Niente infezioni o parodontite attiva
  • Osso sufficiente
  • Serve abbastanza osso per sostenere l’impianto (altrimenti si può ricostruire)
  • Igiene orale buona
  • Il paziente deve mantenere puliti i denti

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ostointegrazione

L’osteointegrazione è il processo con cui l’impianto dentale si unisce direttamente all’osso: le cellule ossee crescono a contatto con la superficie della vite, creando un legame stabile e resistente, senza tessuto interposto.

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la biointegrazione

La biointegrazione, invece, è un concetto più ampio: oltre al legame con l’osso, comprende anche la buona integrazione dell’impianto con i tessuti circostanti (come gengiva e mucosa), garantendo non solo stabilità, ma anche salute e compatibilità biologica nel tempo..

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L'elaborato di cui andremo a parlare sara impianto in zirconia con stratificazione in ceramica

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impianti dentali

materiali utilizzati

I materiali usati per gli impianti dentali sono pochi e ben selezionati, perché devono essere molto resistenti e compatibili con il corpo. 1. Titanio (il più usato) È lo standard da molti anni Si integra bene con l’osso (osteointegrazione) È molto resistente e leggero Non dà quasi mai reazioni nel corpo 2. Zirconia (ceramica) Materiale senza metallo Estetica migliore (non si vede grigio sotto la gengiva) Molto biocompatibile Meno usata del titanio, ma in crescita 3.ceramica materiale estetico resistente

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impianti dentali

la zirconia

La zirconia in ambito dentale è una ceramica molto resistente e di colore bianco, utilizzata soprattutto per impianti e protesi. È un materiale senza metallo, quindi viene ben tollerato dal corpo ed è considerato biocompatibile. Il suo principale vantaggio è la durezza e tenacità, proprio per questo viene utilizzata per lavorazioni di denti posteriori . Inoltre non provoca allergie e ha una buona resistenza. un limite importante è la sua poca traslucenza che la trende un materiale poco estetico

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impianti dentali

il titanio

Il titanio in ambito dentale è il materiale più utilizzato per gli impianti. Si tratta di un metallo leggero, molto resistente e soprattutto biocompatibile, cioè ben tollerato dall’organismo senza provocare reazioni negative significative. La sua caratteristica principale è la capacità di integrarsi con l’osso attraverso un processo chiamato osteointegrazione, che permette all’impianto di diventare stabile e solido . inoltre è molto importante grazie al fenomeno che crea ovvero la passivazione

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La ceramica

Materiale usato in campo odontotecnico

Feldispato

Contiene feldispato , dopo la cottura aumenta la traslucenza

Caolino

Ha la funzione di legare tra di loro tutti i componenti

Quarzo

LAiuta a controllare la traslucenza della ceramica

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ceramica feldisptica

Come riesce la ceramica a legarsi con il metallo ?

Coefficiente di espansione termica varia in funzione della temperatura. È importante che il CET della ceramica sia inferiore rispetto ado che il algame sia stabile e forte in base alla temperatura otterremo 3 diversi legami :

legame chimico

legame fisico

legame meccanico

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manufatto in ceramica

costruzione di un elemento o piu in ceramica al di soppra del nostro impianto

Stratificazione della ceramica, legame chimico con la sottostruttura

Progettazione sotto struttere al CAD/CAM

Fase di fresatura CAM

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+ info

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processo di stratificazione della ceramica , passaggi in laboratorio e spiegazioni a livello chimico

infine l'elaborato sarà igenizzato e consegnato al clinico

02

04

stratificazione

glasura

03

01

forno cottura

ossidazione

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documenti di accompagnamento

documenti che dobbiamo allegare al medico

foglio illustrativo

etichetta

documento di conformià

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Thanks

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i vantaggi del impianto

I principali vantaggi degli impianti dentali sono:migliorano l’estetica del sorriso permettono di masticare in modo efficace non danneggiano i denti vicini (a differenza di alcuni ponti tradizionali) hanno una lunga durata se mantenuti correttamente Tuttavia, per poterli inserire è necessario avere una quantità sufficiente di osso e una buona salute orale generale.

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i componenti del impianto

  • Impianto (vite): è la parte inserita nell’osso e sostituisce la radice del dente.
  • Pilastro (abutment): è il collegamento tra l’impianto e la protesi.
  • Protesi dentaria: è la parte visibile, come una corona, un ponte o una dentiera, che ripristina estetica e funzione.

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  • Generate experiences with your content.
  • It’s got the Wow effect. Very Wow.
  • Make sure your audience remembers the message.

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Let the communication flow!

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  • Generate experiences with your content.
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  • Generate experiences with your content.
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  • Generate experiences with your content.
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  • Make sure your audience remembers the message.

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Let the communication flow!

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  • Generate experiences with your content.
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Let the communication flow!

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  • Generate experiences with your content.
  • It’s got the Wow effect. Very Wow.
  • Make sure your audience remembers the message.

Got an idea?

Let the communication flow!

With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like! Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.

  • Generate experiences with your content.
  • It’s got the Wow effect. Very Wow.
  • Make sure your audience remembers the message.

Got an idea?

Let the communication flow!

With Genially templates, you can include visual resources to wow your audience. You can also highlight a particular sentence or piece of information so that it sticks in your audience’s minds, or even embed external content to surprise them: Whatever you like! Do you need more reasons to create dynamic content? No problem! 90% of the information we assimilate is received through sight and, what’s more, we retain 42% more information when the content moves.

  • Generate experiences with your content.
  • It’s got the Wow effect. Very Wow.
  • Make sure your audience remembers the message.