Using group support effectively can present good substitute of the teachers role and on the other hand,the students learning behaviors are internalized as their own action under this support.

The author with teaching experience of several years holds that with the guidance of the pleasure principle, learner autonomy can be cultivated in the teaching of literary criticism through metacognitive strategy training, group support, keeping in touch with life and employing multi-media.

Study of the stress distribution on the supporting tissues of removable partial dentures with different retainer;

Stress analysis of abutment and its surface supporting tissues with three different removable partial dentures;