CAD-CAM ile Üretilen Sabit Geçici Restorasyonlarda Kullanılan PMMA Materyallerinin Optik ve Mekanik Özellikleri

Yıl 2025, Cilt: 6 Sayı: 1, 36 - 45, 26.06.2025

Gülşah Kaya Ferhan Egilmez

Öz

Polimetil metakrilat (PMMA), düşük maliyeti, estetik özellikleri, işlenebilirliği biyouyumluluğu ve kolay nedeniyle diş hekimliğinde geçici restorasyonlar için sıklıkla tercih edilen bir materyaldir. Son yıllarda bilgisayar destekli tasarım ve üretim (CAD/CAM) teknolojilerinin gelişmesiyle birlikte, endüstriyel olarak üretilen PMMA bloklar daha homojen yapıda, yüksek polimerizasyon derecesine sahip ve iyileştirilmiş mekanik özelliklerle donatılmış şekilde sunulmaktadır. CAD/CAM Bu derleme çalışması, sistemleriyle üretilen PMMA materyallerinin optik ve mekanik özelliklerini detaylı biçimde incelemekte ve bu materyalleri geleneksel yöntemlerle hazırlanan PMMA restorasyonlarla karşılaştırmaktadır. Ayrıca, PMMA'nın diğer geçici restoratif materyallerle karşılaştırılması yapılarak avantajları ve sınırlılıkları çok yönlü olarak değerlendirilmektedir. Bu amaçla PubMed, Scopus ve Web of Science veri tabanlarında 1 Nisan 2025’e kadar yayınlanmış ilgili çalışmaları kapsayacak şekilde bir literatür taraması yapıldı. CAD/CAM ile üretilen sabit geçici restorasyonlarda kullanılan PMMA materyallerinin optik ve mekanik özelliklerini rapor eden çalışmalar analize dahil edildi. Literatürde CAD/CAM ile üretilen PMMA restorasyonların; kırılma direnci, renk stabilitesi, yüzey sertliği ve marjinal adaptasyon açısından üstün performans gösterdiği belirtilmektedir. Bununla birlikte, polimerizasyon büzülmesi ve uzun dönem yüzey aşınması gibi bazı olumsuz özelliklerin de varlığını sürdürdüğü vurgulanmaktadır. Sonuç olarak, CAD/CAM teknolojileriyle desteklenen PMMA materyalleri, geçici restorasyon uygulamalarında hem estetik hem de fonksiyonel gereksinimleri karşılayan, klinik olarak başarılı bir alternatif sunmaktadır.

Anahtar Kelimeler

PMMA , CAD/CAM , geçici restorasyon , mekanik özellikler , optik özellikler

Kaynakça

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