These dental prosthetics are very popular in German speaking countries. It is complicated to make them and very few dental labs can make them well. Patients and dentists like them for their easy upkeep, long term durability and great esthetics.
The removable denture is attached to telescopic crowns. Telescopic crowns consist of two parts. The inner part is cemented to the tooth stump. The outer side is a part of the removable denture. These two parts fit perfectly together and create adhesion which is why telescopic dentures hold so well in the oral cavity. It is actually a type of removable dental prosthetics which look like normal removable dentures but without the clasps or like a removable bridge as you can see in the picture on the left.