Diş Preparasyonu Ve Pulpal Cevap: Literatür Derlemesi

Dr. Özlem ACAR, Doç. Dr. Selim ERKUT
763 373

Öz


Diş kesimi sonrası pulpa dokusunda gözlenen duyarlılık sabit protetik uygulamalarda temel bir problemdir. Dentinde çeşitli uyaranlara karşı gözlenen hassasiyeti morfolojik ve fonksiyonel gözlemlerle bağdaştırmak zor olmakla birlikte dental ağrı mekanizması hidrodinamik teori ile açıklanmaktadır. Diş yüzeyine (Isı, mekanik ve restoratif işlemler) iç (pulpa odası yönünde) ya da dış (pulpa odasının ters yönünde) yönlerde uygulanan dış uyaranlar dentin tübüllerinde dentin sıvısının hareket etmesine neden olmaktadır. Tübül içeriğinin hızlı hareketi A ve C fibrillerini uyarabilmektedir. Dış yönde gözlenen direk sıvı hareketi pulpal yöndeki sıvı hareketine kıyasla pulpal mekanoreseptörlerin aktivasyonunda daha etkili olmaktadır. Pulpal dokuda olası termal hasarı önlemek amacıyla, preparasyon kısa aralıklarla ve soğutucu su ile yapılmalı, ayrıca frez seçimine gereken özen gösterilmelidir.

Anahtar kelimeler


Dentin Duyarlılığı, Hidrodinamik Teori, Preparasyon

Tam metin:

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Başkent Üniversitesi Protetik Diş Tedavisi Anabilim Dalı sok. No:26 06490

Bahçelievler /Ankara-Turkiye telephone no: +90 312 215 13 36 fax: +90 312 215 29 62 e-mail: zlemacr@gmail.com