ABSTRACT
MRI is becoming an important tool of examination of the head and neck. However, certain dental alloys cause artifacts characterized by a loss of signal surrounded by bright line and sometimes distortions. In our work, we studied artifacts caused by Titanium, metallic biomaterial used for oral implantology. Therefore, 2 experimental were investigated in a 1.5 T MR unit, with 2 sequences commonly used (SE, GRE). The investigation showed minor artefacts, without distortions. In order to minimize these "ghost images", the Titanium and its alloys should be an alternative.
Subject(s)
Artifacts , Dental Alloys , Magnetic Resonance Imaging , Titanium , Alloys , Calcium Phosphates/chemistry , Coated Materials, Biocompatible/chemistry , Dental Alloys/chemistry , Dental Implants , Durapatite/chemistry , Humans , Image Processing, Computer-Assisted , Surface Properties , Titanium/chemistryABSTRACT
The growing age of resin prosthesis is a worry for dentists, and chiefly for patients. Their reinforcement with carbon fiber appears to be a solution that frankly improves their life expectancy.
Subject(s)
Carbon/chemistry , Composite Resins/chemistry , Dental Materials/chemistry , Denture Bases , Denture Design , Polymethyl Methacrylate/chemistry , Carbon Fiber , Dental Restoration Wear , Humans , Materials Testing , Pliability , Stress, Mechanical , Surface Properties , Thermodynamics , Time FactorsABSTRACT
Partial toothlessness, lately or wrongfully compensated, are at the origin of prosthetics problems often difficult to solve. We shall explain the importance of dental grooves in the prosthetics process, through different cases of temporomandibular dysfunction.
