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De ce dintii sunt sensibili la cald si rece?

apa de gura, ata dentara, dinti sensibili, medic dentist, tartru, tatuaj dentar
Dentist.ro | 10.02.2010



V-ati intrebat de ce sunt dintii sensibili la temperaturi extreme? Pentru ca si dintii nostri sunt organe vii. La fel ca orice organ si dintii sunt inervati si vascularizati.

In fiecare dinte patrund fibre nervoase si vase de sange care raspund la diferitii stimuli care actioneaza asupra dintilor.

In mod normal, la nivelul cavitatii bucale nu se inregistreaza diferente mari de temperatura. Astfel incat, atunci cand luam o gura de cafea fierbinte, stimulul depaseste rapid pragul de confort si fibrele nervoase, stimulate brusc, nu au timp sa se adapteze si reactioneaza in singurul mod posibil: senzatia dureroasa.

In acelasi timp, vasele de sange se dilata si exercita presiune asupra acelorasi fibre nervoase. Rezultatul este acelasi: durere.


Senzatie dureroasa


Aceeasi diferenta de presiune apare si in cazul consumului de inghetata, numai ca in sens invers. De aceea nu este indicat consumul simultan al alimentelor foarte reci cu cele foarte fierbinti.

La indepartarea stimulului, daca dintii sunt sanatosi, senzatia dureroasa dispare in cateva zeci de secunde. Persistenta ei trebuie sa ne avertizeze asupra unei posibile probleme pe care o putem discuta cu medicul stomatolog. Pentru ca, de fapt, acesta este unul dintre rolurile fibrelor nervoase senzitive: sa ne avertizeze atunci cand apare un potential pericol. Este un mecanism de aparare al organismului. Medicul dentist poate rezolva problema foarte simplu: prin aplicatii de geluri cu fluoruri. Procedura este foarte simpla: consta in aplicarea gelului intr-o gutiera sau direct pe suprafata dintilor. Rezultatele sunt evidente dupa trei sedinte. De asemenea, nu uitati de controlul periodic din sase in sase luni la medicul dentist.


Atentie la tartru


Un alt inamic al dintilor este depunerea de tartru. Tartrul reprezinta o acumulare de saruri minerale (piatra) pe dinti. El constituie un suport ideal pentru microbii ce distrug gingiile, provocand ceea ce se numeste "boala parodontala" sau "parodontopatie". Detartrajul este una dintre cele mai eficiente metode de prevenire a imbolnavirii gingiilor. Dupa detartrajul ultrasonic poate aparea o sensibilitate tranzitorie la rece si la dulce, care va disparea in 3-4 zile. Daca persista, apelati la medicul stomatolog, care va va recomanda produse speciale de desensibilizare.Este necesara repetarea detartrajului la fiecare sase luni pentru prevenirea aparitiei bolii parodontale. Asociat detartrajului periodic, trebuie sa aveti o igiena perfecta. Aceasta se realizeaza prin insusirea unei tehnici corecte de periaj, folosirea atei dentare si clatirea zilnica cu apa de gura.


Bijuteriile dentare


Bijuteriile dentare nu sensibilizeaza dintii. Ele sunt accesorii de ultima ora, pe care multe domnisoare sau doamne doresc sa le poarte. In numai 10 minute puteti avea un zambet nou, mai stralucitor. Aplicarea bijuteriei pe dinte nu afecteaza deloc integritatea acestuia. Este vorba despre o "lipire" a bijuteriei pe dinte, realizata cu substante speciale. Dupa un periaj rapid se aplica pe locul dorit o picatura de demineralizant. Dupa 15 secunde se spala si se aplica adezivul. Se fotopolimerizeaza 60 de secunde. Apoi se aplica bijuteria pe dinte impreuna cu foarte putin material compozit transparent. Se fotopolimerizeaza din nou si se finiseaza. Garantia manoperei este de 1 an. Rezultatul: un zambet care, cu siguranta, va atrage admiratia prietenilor. Bijuteriile dentare exista intr-un numar foarte mare de forme si culori: de la bijuterii din aur cu pietre pretioase (diamante, rubin, safir) pana la bijuterii din zirconiu sau cristal.

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de la lkh (07-10-2016 08:10)
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