Most of the chapters have been thoroughly revised and updated keeping in mind the recommended syllabus and the needs of the students. Clinical relevance of the subject has also been provided at different places to help the students correlate basics of the subject with the clinical point of view. The textbook will not only help the students gain an in-depth knowledge of the subject but also lay a strong foundation for integration of biochemical processes in clinical subjects, thus helping them in their journey to become able dental surgeons.