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Welcome to the University of Michigan dentistry podcast series promoting oral health care worldwide the symbols used for charting are shown at the top of paranal chart there are symbols for missing teeth food impaction open contacts mobility bridges drifted or extruded teeth beginning for kitchens exposed for kitchens and periapical areas mobility of the teeth is recorded in the squares both here and at the base of the chart the buccal and lingual aspects of the teeth are labeled on the chart this is the buccal of the maxillary teeth and the lingual of the maxillary teeth the chart is divided into millimeter markings which are an aid to marking the depth of periodontal pockets on the chart and the cementoenamel junction the reference point from which the measurements are made is indicated in these areas now let me see if I can demonstrate the use of the symbols for charting on this chart let's assume that we are missing tooth number one and tooth number five that there is an area of food impaction between 2 and 3 sometimes you may have an area of food impaction even though the contact point is not open particularly if there is a plunger cusp there's an open contact however between 2 & 3 & 3 & 4 the mobility of the teeth is number two has a mobility of one three has a mobility of two and eight has a mobility of one there is a bridge replacing tooth number 5 with 4 and 6 as abutments tooth number four has drifted medially the buckle of tooth number two has a beginning for keishon involvement as the for occasion involvements are marked right at the percussion the buckle of tooth number three has an exposed for occasion it means we can insert the periodontal probe all the way into the trifurcation area the mesial-lingual of tooth number three has an exposed for cushion it's wide open tooth number eight as a periapical area recording these symbols for charting I would then begin by recording the pocket depth in excess of three millimeters and if you are calling these out to an assistant we would begin on the distal buccal of the last tooth which is number two and we begin like this 4 5 4 3 7 6 4 3 3 3 2 3 3 3 4 3 2 3 after you have recorded the buccal pocket depth I would then proceed to the lingual beginning on the distal lingual of tooth number 2 again and recording only those pocket depths the next s of 3 millimeters 4 5 5 5 8 8 4 3 3 2 to 3 3 to 4 3 to 3 once the recording of the pocket beps has been accomplished I would then proceed to record the level of the free gingival margin in relationship to the cementoenamel junction on those teeth with pockets or those teeth with gingival recession and the teeth would qualify in that category would be any tooth that has a gingival margin apical to the cementoenamel junction I would begin on the first tooth here that has pocket depth recorded and on measuring from the distal of tooth number 2 we the first measurement is 2 millimeters the pre gingival margin is 2 millimeters from...