marginal adaption and nano leakage investigation of three metal ceramic inlay designs - an invitro study
INTERNATIONAL JOURNAL OF DENTAL CLINICS / 8 - مارس - 2017
Aims and Objectives: To evaluate the influence of metal framework design on fracture strength, marginal adaptation and nano leakage of three designs of metal ceramic inlays. Materials and Methods: Three designs for metal ceramic inlays with different metal framework extension were studied: Group A - metal extension on all cavity walls, Group B- on all cavity walls but 1.5mm below cavo-surface margin, Group C- on pulpal, axial and ginigival walls. Empress 2 all-ceramic inlays were used as controls (Group D). The fabricated inlays were cemented into standardized resin teeth using adhesive resin cement.
The subject of the toxicity of amalgam despite gave custody of which dates back to 1926, non-it is still the subject of debate and controversy between supporters and opponent of the claim that toxic as restored and re-toxicity of mercury compounds it contains. The purpose of this Study to review scientific articles that talked about the subject, whether in favor or against the use of amalgam and confirmation to follow the scientific method installer evidence for truth.