 One welcome back to another session in dentistry and more today we have a small topic in orthodontics that is Jackson's triad. So it comes in the orthodontic treatment that is the objectives of orthodontic treatment. So how we should plan our orthodontic treatment. So it was summarized by Jackson. So before moving to the triad so let's see the normal scenario. So when a person he or she goes to an orthodontist mainly for the aesthetic concern. So he might be feeling his teeth are more proclined or more protruded or his jaws are more forwardly placed. So any such concern mainly the aesthetic concern. So that is why the patient goes to the orthodontist for the correction of his problem. But on a orthodontist point of view he should be looking not just the aesthetic problem but also the structural balance and functional efficiency. So any orthodontic treatment so the main objectives of orthodontic treatment should be based on these three factors that is one is functional efficiency the structural balance and aesthetic harmony. So when these three things combined or comes together there will be the perfect result. Summarize the objectives of orthodontic treatment as functional efficiency structural balance and aesthetic harmony. Let's see one by one. The first one is functional efficiency. So functional efficiency it means a person might be feeling because of this malocclusion he might be feeling many problems like in mastication that is chewing in phonetics in speaking a few words or he might be having some other problems like proclined teeth people usually have oral breathing. So many problems he might be having so the normal functioning is not happening. So we need to correct the functional imbalance so the imbalance of the functionality of the oral structure that is it includes the teeth, bone and muscles. So that should be the first objective of any orthodontic treatment correcting the functional imbalance. So it says that malocclusion which affects normal functioning of the stomatone ethic system. So we should always aim at improving the functionality or functioning of the orophacial apparatus. So the orophacial apparatus includes teeth, bone and musculature. Musculature means the lip muscles, cheek muscles and other muscles. So which is present within the oral cavity. So there should be a balance of orophacial apparatus that is a functional efficiency. The second one is structural balance. So it is almost like functional efficiency but it is more at an anatomical level. So we have basically three systems in a orophacial region that is the dental alveolar system which is the tooth. We have dental alveolar system, then skeletal system which is bone and we have soft tissue. These three systems. So there should be a harmony between these three systems. There is a dental alveolar system which is tooth related, skeletal is bone related and the soft tissues. So these three systems should be at a proper balance. So the forces which is transmitted to and against the bone should be in a balance. That is the structural balance. So there should be a structural balance between these three systems. There is dental alveolar, skeletal and soft tissue. And the last one is a aesthetic harmony which we were talking in detail in the beginning. So what is the reason many people or most of the people who goes to an author on this it is to correct his aesthetics. So whatever he feel it is purely subjective. So the person feels his aesthetics is compromised so he needs to or she needs to improve it to where a desired level. So we have common standards. So still aesthetics always a subjective concept or subject. So we need to improve the aesthetics. It could be a tooth related problem or a bone related problem or a soft tissue related problem. So we need to improve the aesthetics. So that is aesthetic harmony because this is the reason mainly people seek author on the care and most of the male occlusions are associated with very unsightly appearance of the teeth and which can which will affect the individual's self image, self esteem, well being and success in society. So the author on the treatment should always aim at improving the aesthetics of individual. So these are the three things where the Jackson summarized as the objectives of author on the treatment that is functional efficiency which is a which indicates the functionality that is the arrangement of teeth or the basic function of mastication and other functions should be at a proper balance and the structural balance which includes lendovalvella, skeletal and soft tissue. There should be a balance between these three or the forces transmitted between these three and the aesthetic harmony which is the main concern of patient. So these three includes in the triangle of Jackson. So that is all about Jackson's triad is a commonly asked short note in university exam. So I hope you understood the simple concept of the triad. So I will come up with a new topic in author on Dix. Thank you.