Am niste plombe destul de mari la masele care ma deranjeaza, intrucat simt un gust metalic in gura. In timp, ele mi-au colorat in cenusiu dintii. As vrea sa stiu ce pot face pentru a scapa de metalul acesta din dintii mei?
R.L., Bucuresti
Din ceea ce descrieti reiese ca pe masele aveti niste obturatii de amalgam. Acesta e un material obtinut dintr-un amestec de mercur si aliaj de argint. Unii il considera toxic, datorita mercurului, altii il prefera pentru reconstituirea unor dinti afectati de carie. Amalgamul pierde teren in fata materialelor compozite fotopolimerizabile, cu acestea putandu-se realiza obturatii deosebit de estetice cat mai apropiate de culoarea dintelui. Au o rezistenta deosebit de buna la solicitarile din timpul masticatiei si nu coloreaza dintii, asa cum o face amalgamul ai carui produsi de oxidare impregneaza dintele. Rasinile compozite sunt insa limitate ca utilizare in distructii mari coronare. In acest caz se folosesc obturatii (plombe) realizate cu ajutorul laboratorului de tehnica dentara. Acestea pot fi facute tot din compozit sau din ceramica (portelan) si se cimenteaza pe dinte in cavitatea ramasa dupa indepartarea tesutului cariat si dupa prepararea dintelui. Acestea se numesc incrustatii si se utilizeaza atunci cand dintele este destul de distrus de carie, astfel incat o simpla plomba realizata in cabinet nu ar rezista. Asadar, in unele cazuri in care plomba nu este indicata, in loc sa slefuim dintele si sa il imbracam printr-o coroana se prefera realizarea acestor incrustatii in laborator, astfel conservandu-se o buna parte din dinte.
Dr. Andrei Tirpea
Medic dentist
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