Diagnosis

By correlating the findings of the examination and special tests with the patient’s history, the cause or causes of the complaint should be identified and recorded. It is important to realize that, unless a diagnosis is made, there is little prospect of solving a patient’s problems by providing new dentures and, in some cases, it is unwise to embark on such treatment.

Classification atrophy of edentulous upper jaw by Shreder.

The first class is characterized a well-preserved alveolar process, high alveolar ridge, well-defined tubercles and high palatal vault. Transitional fold, attachments of the muscles, mucosal folds are relatively high, without torus or not faint palatal torus.

This class there is good conditions for the orthopedic treatment

The second class characterized moderate degree of atrophy of the alveolar process. Transitional fold is somewhat closer to the top of the alveolar process than the first type. With the dramatic reduction of facial muscles may be affected fixation of the prosthesis. Just noticeable tubercles, the average depth of the palatal, have expressed torus.

The third class characterized complete absence of the alveolar ridge, dramatically reduced size of the body upper jaw. Transitional fold located in one horizontal plane with Noah hard palate. underdeveloped alveolar hills, flat palatal, wide torus.

Classification atrophy of edentulous lower jaws by Keller.

The first type phase there is the insignificant and moderately expressed atrophy of alveolar part. The preserved alveolar part at the point of entire elongation is a good point of anatomical retention, prevents the displacement of prosthesis as before the transversal as sagittal directions. Transitional fold, points of the fastening of labial, lingual bridles and cheek folds the placed low, which is the possibility with the aid of the functional impression to create on the edge of prosthesis the closing valve.

The second type the characteristic strongly expressed atrophy of alveolar part, which led down its total disappearance. In that case atrophy covers even body of jaw. This process can be caused by the absence of the functional index, which is deposited down the atrophy of the nature dependant on age. Transitional fold, the point of the fastening of bridles, cheek folds of the mucous membrane of attachment on the same level with the surface of orthopedic area. Anatomical retention is absent, and condition for creating the closing valve unsatisfactory. From the point of view of orthopedic prosthetics this type of toothless jaws exists heaviest for conducting prosthetics.

The third and fourth types the atrophy of alveolar part uneven, and third type presence alveolar part is preserved before the frontal division, that is absent before the lateral, the fourth - sharply pronounced before the frontal division at the point of relative retention before the lateral. The greatest difficulties for prosthetics appear fourth type in the case. The basis of prosthesis, without having a resistance before the frontal it descends forward.

The fourth type is the consequence of the early removal of the teeth of lateral section as a result of the diseases of the tissues of periodontium injuries and the like

Date: 2015-01-02; view: 1309