Prática de Shadowing: Pascal Magne Part #1 - Aprenda a falar inglês com vídeo
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Pascal Magne
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This is Pascal Magne talking from Los Angeles, California, at the University of Southern California School of Dentistry.
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Today we are going to talk about the principle of biomimetics in restorative dentistry.
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And I hope you will, after this hour and a half spent together, you will understand exactly what I mean when I say biomimetics.
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And a couple words about my background as a word of introduction.
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As you might know, I'm from the University of Geneva.
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I was born in Switzerland and got my dental education there.
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I was very much blessed to be under the guidance and leadership of Dr. Belzer in Geneva,
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who I can really say is my clinical mentor.
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The second person I want to mention at this stage is my second mentor I had in my career,
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Dr. Bill Douglas at the University of Minnesota.
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Bill Douglas was my, I can say, my research mentor.
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He is definitely someone who opened my eyes on research
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and I was so kind to host me for two years at the University of Minnesota
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and you will see a little bit of the work
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that I did when I was there in the freezing cold of the Midwest.
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Finally I couldn't start this presentation without mentioning of course the University of Southern California.
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This is one of the most recent chapters of my academic life and this is thanks to Dr. Hal Slavkin, the Dean here at USC,
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a man with a vision, an amazing leader who inspired us to come
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and actually as you know I didn't come alone at USC
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I am here with my brother Michel who is one of
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the most outstanding nail technician in the world I think it's not even needed to present him
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and he's now in charge of the Center for dental technology here at USC.
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And so we have now a Los Angeles Oral Design Center for those who know the oral design family.
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Here is Michelle, you see on the screen, Michelle is very different physically than I am, right?
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Especially at the top of our head.
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However, if you look at our teeth, I don't have a picture here, but if you look at our teeth,
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you will notice one day that we have quite a similar arrangement
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and tooth form and because Michel is eight years older than me, he has much more incisal wear than I do.
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Anyway, aesthetic dentistry, as you know, today is going to be about aesthetic dentistry.
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And to be honest with you, I don't like too much the word aesthetic and even less the word cosmetic.
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means aesthetic it is not a driving force in itself
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and first of all we might have some disagreement on what means aesthetics
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and that's why I want to give you my definition of aesthetic dentistry
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and let's see what you think about it aesthetic dentistry is usually mentioned as being about the oral cavity,
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the teeth, of course, the smile, the face of the individual.
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And we hear that a lot in lectures.
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And I agree with that.
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However, I would like to say there is also a spiritual dimension in aesthetic dentistry,
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which means that a lot of patients very often expect us to do extensive work and behind their expectations.
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there is maybe a broken heart, maybe a personal problem.
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And as you know, it is not by changing teeth
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or by changing cars or by changing wife that you solve the root problems in your life.
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And I think it's important to know that
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because some patients have very high expectations and think that you can solve all their problems by making them a new smile.
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And this is not what we want to promote here.
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And I like this quote from Reverend John Murray in this book published in 1922, a long time ago.
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As you can see, the realm of reality.
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And what it says is so true.
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The aesthetic is itself nothing more than a beautiful symbol of the spiritual, without which spiritual the aesthetic is a shadow without substance.
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And I can't agree more with that.
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Okay, with that in mind, I want to share some pictures here on so-called aesthetic cases.
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And all these pictures you see now, these are patients with artificial teeth, all made in ceramics, veneers,
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crowns, as is in the case, veneers again for this lady.
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What does it mean really a successful aesthetic for these patients?
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Can you judge on these slides?
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Can you really judge from these slides if our treatment was successful or not?
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And the answer is absolutely not
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because you can make a very pretty shot of a pretty face and make you believe that the patient is happy.
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But what will ultimately really make the patient happy is time and dynamic.
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And this is impossible to judge on these pictures in these pictures, of course you would need to meet, to talk to this patient,
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to know what is really aesthetic integration.
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And this is what I want to share with you also during this lecture.
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Aesthetic integration is not something you obtain with the final work.
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It is something you obtain by the correct diagnostic approach and I will also try to share about this briefly.
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So the main topic today will be about ceramics and composite
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and I want to share new developments and their application in your practice.
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I hope you have really a lot of take home message because I want to be very also very clinical for you.
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It's going to be about adhesive technology and as I said something called the biomimetic principle.
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Just again still as a very general comment the fixed prosthodontic is changing constantly
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and I think like in the last decade the most important changes that we can mention
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is around adhesive dentistry on one side and implant dentistry on the other.
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And you have a good example on the screen of where we've gone from,
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from the more invasive procedures like crown to more conservative occlusal coverage with like ceramic overlays that you see on the right.
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And I think this is very important because it allows us to maintain more intact tooth substance.
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It allows us to be more conservative.
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It allows us to keep more teeth alive.
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And I think this is very important.
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The revolution is that, and this is the most extreme example of stabilization and retention form,
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the use of pins.
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That's an extreme, of course.
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Stabilization and retention, you've heard these words when we prep crowns.
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And I think this is the revolution stabilization and retention are not required anymore.
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And from these very mechanical approaches of pins and crown preparations and screws and posts in the root,
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etc., we are now shifting toward a more biomimetic approach.
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And what is the driving force of biomimetics?
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What is it that is really the base, the foundation of the concept?
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It's very simple.
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It starts with biology.
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Biology is number one in the pyramid of priorities.
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When a tooth is alive before we treat it, it should stay alive after the treatment.
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There is one thing we cannot replace in a tooth, it is the living pulp.
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Once it lasts, we will never recover it.
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And I think that's every type of treatment that allows us to keep the pulp alive, we should buy that treatment.
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We should support it.
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And this is the foundation of biomimetics.
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The next step is if we have a vital tooth
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and we know that we play in the higher league every time we have a vital tooth,
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then we have to emulate the mechanics and the function of this intact tooth, of the intact tooth.
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And to emulate the mechanics and function we need to know a little bit about enamel, dentin, as a material property.
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And I tell you, if we respect biology, if we emulate mechanics and function, aesthetics will be like a gift.
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It will be given because we would not have to think about it.
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Because to emulate mechanics and function, we need tooth-like materials, not only mechanically but also aesthetically.
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And so this is really the very strong foundation of what I call the biomimetic principle because as you might know, biomimetics is a more broader
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definition towards the fabrication of body parts the same way they are fabricated by the human body
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but in vitro in a lab.
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And we are not yet to the point when we can fabricate enamel
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and dentin as tooth parts to be used as a restoration.
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But people are working at This is part of Dr. Slavkin's, our dean's vision, and I think this is very important.
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Now for us, and for nowadays, let's say, we need to be inspired by the biomimetic principle.
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And as I said, we need to know dental materials, and we have to simulate enamel and dentin.
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And for that, we need to know the tooth.
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We need to know what is the constituent of the tooth.
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And as you know, most of the tooth volume is made out of dentin that you can see now on the screen.
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And dentin is very flexible and compliant.
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It gives a lot of elasticity to the tooth.
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And we know from these studies by Stokes and Hood that the stiffer the coronal restoration,
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the more we increase the risk of root fracture.
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And this is a typical example of altering the biomechanics of the tooth with a stiff element, a too stiff element.
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Then we transfer the stress to the more deformable part of the tooth, in this case the root, and we increase the risk of root fracture.
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So we have to remember that the tooth, the intact tooth, is a perfect balance between resilience and stiffness.
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The dentine is here as a flexible core to bend, to absorb the deformation.
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And the enamel is there to give enough function and cutting ability and stiffness for long-term function.
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And this is the perfect combination.
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This is really what makes it work.
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And if we can all agree on this principle, if we can all agree that the intact tooth is the reference for reconstruction,
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then I think we can really focus on developments that strive for emulating this.
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And you know what, with nowadays material it's not too complicated.
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We need to find an enamel substitute, a dentine substitute, and a dentine enamel junction substitute.
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Thank you.
Contexto e Antecedentes
Pascal Magne é um especialista em odontologia restauradora que falou sobre o princípio da biomimética em um seminário na Universidade do Sul da Califórnia. Sua formação acadêmica inclui experiências valiosas tanto na Universidade de Genebra quanto na Universidade de Minnesota, onde teve a oportunidade de trabalhar com mentores reconhecidos na área. Durante a sua apresentação, ele explora conceitos de odontologia estética e a profunda conexão que existe entre estética e espiritualidade no tratamento dos pacientes. Magne aponta a importância de entender as expectativas emocionais dos pacientes em relação aos tratamentos dentários, destacando que a verdadeira mudança vai além do aspecto físico.
As 5 Principais Frases para Comunicação Diária
- "A estética é um símbolo do espiritual." - Reflete a ideia de que a aparência externa pode ser influenciada por questões internas.
- "A odontologia estética é sobre muito mais do que apenas dentes." - Enfatiza que o atendimento dental deve tratar o todo do paciente.
- "Não se pode substituir o que está quebrado apenas trocando dentes." - Uma citação importante sobre as expectativas de mudanças na vida.
- "A beleza é uma expressão da realidade espiritual." - Uma visão profunda sobre a conexão entre estética e espiritualidade.
- "A odontologia é uma arte baseada em ciência." - Aborda a combinação de habilidades artísticas e conhecimentos científicos.
Guia Passo a Passo para Praticar Shadowing
Para aprimorar suas habilidades de comunicação em inglês através do método shadowspeak, siga este guia baseado no vídeo de Pascal Magne:
- Assista ao Vídeo: Primeiro, assista ao vídeo sem legendas para captar a pronúncia e o tom do orador.
- Leia a Transcrição: Em seguida, leia a transcrição, prestando atenção às frases e expressões mencionadas.
- Pratique o Shadowing: Repita as falas de Pascal Magne imediatamente após ouvi-las. Tente imitar a entonação, ritmo e ênfase.
- Grave sua Voz: Grave-se praticando shadowing e, em seguida, escute a gravação para identificar áreas de melhoria.
- Revisite o Conteúdo: Volte ao vídeo várias vezes e aumente a complexidade das frases com o tempo, sempre utilizando o shadowing site para se aprimorar.
Utilizando essa abordagem, você poderá aprender inglês com YouTube de forma eficaz e se sentir mais confiante ao se comunicar. O shadowspeaks é uma ótima maneira de internalizar o idioma e melhorar suas habilidades orais.
O que é a Técnica de Shadowing?
Shadowing é uma técnica de aprendizado de idiomas com base científica, originalmente desenvolvida para o treinamento de intérpretes profissionais. O método é simples, mas poderoso: você ouve áudio em inglês nativo e repete imediatamente em voz alta — como uma sombra seguindo o falante com 1-2 segundos de atraso. Pesquisas mostram melhora significativa na precisão da pronúncia, entonação, ritmo, sons conectados, compreensão auditiva e fluência na fala.