The aim of this study was to evaluate a multimedia interactive computer program created to enable students to learn the basics of the complex process of designing removable partial dentures (RPD). The program uses the unique properties of CAL to present casts in a 3 dimensional perspective which the student can rotate at will, to incorporate animated diagrams and to create an inquiry based environment to promote deep learning.

Evaluation has been formative and summative. Initial formative evaluation was from comments in an anonymous suggestion book. Later formative evaluation was in the form of parts of a questionnaire administered to 60 junior students from two Australian Dental Schools and to observation of four groups of these students as they worked through the program. Summative evaluation consisted of other parts of the questionnaire and of an assessment under examination conditions where students who had had no other training in RPD design, were asked to create designs and draw them on previously unseen casts. Summative evaluation showed that 98% of students passed the formal assessment at a very high standard, 93% believed that the program increased their comprehension of the subject matter, 83% would like to learn more dentistry this way and 90% found the computer sessions enjoyable. However 57% were ambivalent about having the computer replace tutors altogether.

The formative assessment led us to add a glossary, to formalise the navigation through the program, to add short quizzes at regular intervals to consolidate what had been learnt so far and to reassure students that this program is not meant to replace personal one on one teaching at the higher levels. Formative assessment by the students themselves was invaluable in completing the program. Summative assessment shows that it is a helpful and enjoyable learning resource for acquiring the craft behind the art of designing RPDs.

Supported by the Australian Prosthodontic Society, the Apple University Development Fund, and the Committee for University Teaching and Staff Development (Australia).