With missing teeth, after time, the underlying bone regresses. Another cause for bone regression may be periodontitis.
If a severe case of bone regression it may become impossible to use bone-stabilizing implants, even after a thorough analysis.
Especially in the area of the front teeth oftentimes an aesthetically pleasing appearance may not be achieved. The gums are irregular and dark holes, i.e. “black triangles” appear between the crowns.
With bone tissue being too thin, the missing tissue can sometimes be obtained by stretching. For this purpose, a device – a so-called distractor – will be inserted into the bone. This expands the bone gradually, it forms new bone, and therefore provides a table implant base.
If too little bone is present or the doctor wants to avoid another surgery for insertion of the distractor or to remove bone, the bone defect is filled with special substitute materials. The body will create durable bone within a few months.