This course is designed to the undergraduate students at the 2rd year and it is a two Credit hour theoretical course. This course will provide introduction, knowledge and understanding of the dental materials with emphasis on those restorative and impression materials and techniques commonly used in dental practice which may require use by the dental assistant and dental hygienist. This course is also linked with a practical course (ADS 224) which enables the students to see and examine the different dental materials used in dental practice. An overview of current trends in dental materials is presented.