Abstract: The present application discloses a process for the preparation of metastable tetragonal zirconia in the form of an aerogel material, said material being capable of undergoing martensitic phase transformation to monoclinic zirconia. The application also discloses composite materials, such as dental filling materials, having included therein an aerogel material.

Abstract: The present application discloses a process for the preparation of metastable tetragonal zirconia in the form of an aerogel material, said material being capable of undergoing martensitic phase transformation to monoclinic zirconia. The application also discloses composite materials, such as dental filling materials, having included therein an aerogel material.

Abstract: Example embodiments relate to a composite material exhibiting a low or even negligible volumetric shrinkage upon curing, or even a small expansion (e.g. up to 0.5%), in particular composite materials in the form of dental filling materials. Example embodiments also relate to a method of controlling volumetric shrinkage of a composite material upon curing, and to a method of reconstructing a tooth. Example embodiments also relate to ultrasonic curing of dental filling materials. Example embodiments further relate to a population of zirconia particles and methods for preparing such zirconia particles (e.g. zirconia in the tetragonal phase or zirconia in the cubic phase). The martensitic transformation of the filler ingredients is, e.g., triggered by application of ultrasound or by a chemical trigger.

Abstract: The invention provides a dental model with an artificial jawbone with cavities, at least two artificial teeth, and interfaces each connecting a corresponding tooth to the jawbone such that it extends upwards from a corresponding cavity. To enable movement of the teeth relative to the jawbone and relative to the other teeth, the teeth are connected to the jawbone via interfaces which are more elastically deformable than the teeth and jawbone. In this way, a realistic dental model can be made in a very simple and cost efficient manner, e.g. in an SLS process. The invention further provides a method of making the dental model.

Abstract: The invention provides a dental model with an artificial jawbone with cavities, at least two artificial teeth, and interfaces each connecting a corresponding tooth to the jawbone such that it extends upwards from a corresponding cavity. To enable movement of the teeth relative to the jawbone and relative to the other teeth, the teeth are connected to the jawbone via interfaces which are more elastically deformable than the teeth and jawbone. In this way, a realistic dental model can be made in a very simple and cost efficient manner, e.g. in an SLS process. The invention further provides a method of making the dental model.

Abstract: A dental insertion for a tooth filling, the insertion having a surface and a body extending from the surface, wherein at least one cavity is arranged in the surface, the cavity extending at least from the surface to a center of the body. Further, a dental insertion dummy having similar dimensions to a dental insertion, a device for handling of a dental insertion, a device of an electromagnetic radiation-conducting material for insertion into a dental insertion, a method for incorporating a dental insertion for a tooth filling into an interproximal space, a system including one or more of the insertions and devices and a method for production of insertions for dental treatment.