No significant difference existed between the MMPI means of the test group and the MMPI means of the Mayo Clinic patient group. 2. The means of the test group and the Mayo Clinic patient group deviated from the MMPI normative data. 3. No apparent change in personality of the test group was suggested by the MMPI. 4. A much larger percentage of the patients than expected failed to complete the initial MMPI. One patient refused, and four patients had a raw score of "cannot say" responses greater than 120, thus invalidating the test. 5. The changes in the means of the ACL scales of total number checked, autonomy, change, and abasement were significant (p less than .05). 6. The patient became more outgoing and optimistic, as measured by the ACL, during the immediate postoperative period. 7. Speech and mastication were problems for some patients even after prosthodontic rehabilitation. 8. Most of the rehabilitated patients resumed their normal social habits. 9. The patients in the study seemed to respond to the new situation according to their already existing personality structure.