ORTHO PART 2 II NEET MDS INICET MDS Quick Revision WE ARE WITH YOU

kant from team mds conquer now we'll be going through the second part of orthodontics that is the quick retention so coming to this airplanes it is a binary appliance which is given by the scientist name and the thickness of the y that is labeled above it is 0.9 millimeters and parallel board is 1.2 millimeters so important things to be added and please do make a note about the different types of bionites which are already discussed on the group that is very very important the next comes is the twin block appliance most of you are well familiar with this diagram that is twin block appliance basically the angle between the two twin blocks initially is going to be 45 degrees when it is activated it's going to convert into for example if they're asking the question the question is activated for example if they clearly mention what is the initial angle then you go for 45 degrees okay so it is inter maxillary extraoral traction upper and lower byte planes are interlocked at 45 degrees initially and whenever they are activated they are going to be 70 okay so these are the important points to be added it is given by clark it consisting of a delta class this is a question that is given in the knee 2020 okay and it is less fitting decreases the lower anterior proclamation so the next comes is ff okay most of you are familiar with this diagram based question and this with this appliance okay so please do please do make a note of all these important things uh about this particular appliance okay so please do okay you have all these diagrams which are clearly given in your power playbooks make a note just go back just have a glance of diagrams most commonly asked different types of pliers okay so this is the distillate cutter what are these elastics which helps in closing the spaces correcting the open bytes please do go go with the classification of elastics what is type one class one class two and class three okay please do make a note about the three classes which is most commonly asked question and confusing the next comes these are separators so please do make a note okay make a note of this appliance okay so again this this is very very important grades okay so grade five grade four nowadays they're asking questions three two and one please to learn all these grades and what is the difference between the slow expansion and the rapid expansion so please do make a note of the values okay so question given is uh the the amount of activation that is required so this is a question given so rapid has is more dangerous okay so it is less dangerous okay it is relapse is more relaxes less okay so this is this is again this is again a question that is given in one of your mock exams it is a band removing player this is the question given in the aims examination of course this classification is very very important and of course one of the confusing so question asked is type b what is type b type b is prognathic maxilla and orthognathic mandible you have the same classification in your power play books so please do make a note okay this is one more classification that is bennett's classification basing upon the theology every class one is abnormal position of one or two molars and the class two is abnormal position of part or whole of the arch and part battery is the both arches either just in the facial contour and one more important classification that is simon's classification most of you are familiar with this so you have three planes and uh the disparities in these three planes the pl this is one plane is two plane this is three plane what happens in the contraction what happens in the distraction what happens in the attraction what happens happens in the abstraction protraction retraction so please do learn all these terms and terminologies high chances they can ask questions on this area the next comes is the downs analysis i'm just going to give a brief idea of what's going to happen in towns analysis and everything most of you are familiar with this we have a good discussions during the flow metric analysis part and of course we have a videos on the website you can watch them so downs analysis is most frequently used analysis okay so it has 10 parameters in it okay so please do make a note of all these 10 parameters that is the skeletal and the dental 5 skeletal and 5 dental and coming to those things that is the first one is the the facial angle the second one is the angle of convexity the third one is the a b plane angle fourth one is the mandibular plane angle fifth one is the y axis the next goes uh is uh about about your dental dental parameters that is scant of occlusal plane lower incisor to that of the occlusal plane lower incisor to mandibular plane inter incisal angle upper incisor to a pogonia okay so these are the values that you have to make a note okay so i'm just going to give the average values uh so that is 87.8 degrees the next close is zero degrees it is minus 4.6 degrees it is 21.9 degrees 59.4 degrees so coming to the dental parameters 9.3 14.5 1.4 135.4 and 27 millimeters okay so what happens if this value is more what happens if this value is less so basing upon which we will be diagnosing the case and basing upon which we will be planning the treatment so regularly i mean such question a simple question was given in the uh neet examination 2020 and 1920 also 90 i mean the need 19 also so please do make a note of these values go back if you're not if you're not very clear about these these angles so what are the two references which are taken to draw this particular angle this is the normal value what happens if it is above what happens if it is below for example uh if this value like this value is above 87.8 in this in this facial angle if it is above increasing in the facial angle gives an information it is in a class three skeletal class if it is below below this value then it is considered as in a class such that you have to learn for all the things because they are asking directly or indirectly questions over the particular area the next comes is the one more analysis that is called as an stenos analysis so in the stereo analysis you have a parameter similarly like that of your downs analysis okay you have a parameter similarly like that of your downs analysis that is your skeletal parameters dental parameters and your soft tissue parameters so what are the skeletal parameters the skeletal parameters in this are you can make a note about s and a because this is the question that is given in the need sna s and b a and b a and b okay the next comes is the occlusal plane angle then comes is the mandibular plane angle the next comes the dental parameters the rental parameters which includes are the the dental parameters which includes are the upper incisor to na angle the next one is upper incisor to any linear so this is an angle and this is a linear dimension then the lower incisor 2 can be angle then enter incisal angle value similarly like you will have inter incisal value in the case of your downs analysis also okay then comes the last one is the we are talking about something called as a soft tissue analysis that is an s line so these are the parameters that you have to make a note so i'm just going to give the rough values this is 82 this is 80. so this is the difference between these two values and a minus s and b is called as a a and b okay so that is the minus means it is 2 then it is 14.5 degrees it is 32 degrees then comes this value this value is 22 degrees this diamete this dimension is 4 millimeters this is 25 degrees and this is 131 degrees and coming to the word of word word about your soft tissue analysis uh i mean like when when the lips are well balanced and when the when the patient when the patient is like well well balanced and the when the patient is making uh if the patient's uh if the patient lips are located beyond this line when you draw a line the line that is making contact from the soft tissue contour of the chin to that of the middle surface of the s that is formed by the lower border of the nose okay so when you draw a line if this lips are beyond this line okay then you can consider as protrusive and if these lips if they are within the line then they are considered as retrospec okay so that is just an inference so please do make a note about the reference line which is considered about the positioning of the lips in the case of your s line that is used in the stenos analysis okay regularly ask question theorems so please do make a note of all these 10 theorems they're asking the number i think six was asked in the last year neat seven was asked in the recent inict examination okay so please do make a note about the 10 the 10th was recently added added by the scientist called as moyas so they're gonna ask you what is the theorem which is added by the moyes to this okay so again this is the question that is given in your inicet okay what is group one group to group three group one is only lip group t is only parrot group three is all of this they can use like group one r means right side left side midline it is involving yellow does like group one a means group one means clef flipped plus alice p means partial submucosal again this is a diagram based question hope hope you remember this diagram this question which which we have discussed one of the mock examination the band which is formed like like i mean an extension of band that is formed on the ah cleft lift area lift band pallet area okay please do make a note of all the classifications of cleft lift and cleft palate which are easy but may be confused when options are given okay so these are three different classifications which are mostly asked in the examination and then for now signing off dr srikanth from team mds conquers