Knowledge of the basic principles of dental occlusion and the masticatory system is vital for every dental student and dentist. Therefore, functional assessment and examination of occlusion should be considered and carried out on a routine basis. In restorative dentistry, when a patient attends a dental clinic for treatment, the required treatment may involve a small or major alteration in the occlusal surfaces of the teeth. Occlusal considerations are very important in the field of restorative dentistry. Ideal occlusion treatments can be carried out using a conformative approach. An advanced restorative treatment plan involving the re-organised occlusal approach is more complicated and is a major challenge for restorative dentists. Assessment and consideration of TMJ are essential in any occlusal planning for any restorative treatment. The successful outcome of treatment involving occlusal considerations depends upon the skill of the dentist and the technician, and also the treatment planning.