This study aims toassesst patient’s satisfaction with partial dentures fixed by two different extracoronal attachments in the mandibular of cases Kennedy class II . It used a sample consisting of 10 patients have lost bilateral in the mandibular were prepared two abutments (first and second premolar ) and compensation as follows : the right side of the patient by rigid attachment type MKI and the left side by resilient attachment type ASC 52 , then to assess patient’s satisfaction for each of the two types of attachments was conducted after a month and 6 months on the use of dentures using by scale 0 5 (0 = excellent ,1 = very good, 2 = good, 3 = middle , 4 = bad, 5 = very bad) , so that the assessment in terms : general satisfaction included (aesthetics, speech and retention ), comfort , the ability to chew ,easy removal denture , deposition foods under the removable part . The results showed , no difference statistically significant between tow attachments in terms of general satisfaction included (aesthetics, speech and retention) ,comfort , the ability to chew ,easy removal denture after one month and 6 months to use the dentures while showing difference statistically significant between tow attachments after one month and 6 months to use the dentures , when the level significance p< 0.05 .