Thin crestal ridge was reduced to create wide recipient bed for planned implant installation.
In such cases, the heights of EJSs would have been shortened by 1 to 3 mm at least.
Juodzbalys G, Kubilius M.
J Oral Maxillofac Res 2013 (Apr-Jun);4(2):e2. doi:10.5037/jomr.2013.4202