Partial removable prosthesis is the most frequently therapeutical solution applied to patients aged more than forty years and which were diagnosed with extended partial edentations. The purpose of our study is to estimate oral tissues diseases installment to subjects having partial removable prosthesis, this patients being exposed on contacting stomatopaties. We developed this study on the clinical examination of a group of forty subjects partial removable prostheded, three or four year ago, respectively 23 woman and 17 men aged between 40 and 75 years. The oral hygiene, caries incidence, clasps fractures were evaluated, it was registered the aspect of the acrylic resin of the base, and also the inflammation degrees of the oral mucousa. A high level of oral hygiene statement diminuates the installment of the whole series of post-prothetical involvements, also decreasing the stomatopathies appearance frequently.