[Tips for private practice on molar-incisor hypomineralisation therapy].

The treatment of severe molar-incisor hypomineralisation (MIH) is often a challenge for both the patient and the practitioner. Factors such as hypersensitivity, pulpitis, partially erupted molars, and reduced adhesive bond strength make dental work more difficult and reduce long-term success. It is particularly important for everyday practice that there is a wide range of temporary restoration options even for teeth that are difficult to restore.

Surface, Microstructural, and Mechanical Characterization of Prefabricated Pediatric Zirconia Crowns.

The purpose of this study was to characterize the surface roughness, the microstructure, and mechanical properties of four prefabricated zirconia pediatric crowns. Ten prefabricated crowns from four different manufacturers (Cheng Crowns Zirconia), (EZCrowns), (NuSmile ZR), and (Zirconia Pediatric Crowns) were included in this study. The surface roughness parameters (Sa, Sq, Sz, Sc, and Sv) of all samples were studied by optical profilometry and then the microstructure was studied by Raman spectroscopy.

Water-induced Effects on the Hardness and Modulus of Contemporary Sealants Derived from Instrumented Indentation Testing (IIT).

Aim: To compare the mechanical properties of four different types of contemporary fissure sealants before and after water storage employing a modern instrumented indentation testing (IIT) method.

Materials And Methods: Four different types of materials used in everyday practice were deliberately selected. Fissurit (FIS) is a highly filled resin, Embrace (EMB) is a bisphenol A (BPA)-free unfilled resin, Helioseal (HEL) is an unfilled resin, and Riva Protect (RIV) is a glass-ionomer material.