ACJ Quiz – Periodontal Bone Loss

bone loss in posterior region can be decided with the increased distance from CEJ and also bone level being close to the furcation level

there is an increased distance evident from CEJ to the bone level in both jaws

) in the lower jaw bone loss is evident between the teeth # 3.5 and 3.6, remember when there is two bone lines we consider the lower line as the reference of the bone level

In this case bone loss should not be selected, as there is no blunting in the crestal bone and the distance between the level of the bone and the CEJ is not increased

in this case upper jaw bone level is not evident, for the lower jaw follow the line between the CEJ of the adjacent teeth, although the bone level seems like a vertical bone loss, there is no bone loss evident as it follows CEJ and distance is not more than 2-3 mm

again follow the line from CEJ of a tooth to the adjacent tooth, there is no bone loss

) pay attention to the bone level on tooth # 1.6

) in both jaws in the location of the first molars bone loss is evident , not inter-proximaly but in buccal/lingual area, that is getting very close to the furcation.

for the upper jaw it is not visible, for the lower jaw the bone level is close to the Furcation, and also if you follow the CBO on premolars, that shows the distance between CEJ and the bone level, you can see the low bone level in premolar region as well.

yes it seems that there is bone oss on distal tooth # 1.7, BUT when the tooth is over erupted, the choice of the bone loss should not be made because of increased distance from the CEJ to the bone level.

bone loss is evident in distal tooth # 3.6, and mesial tooth # 2.5

pay attention to how sharp and defined the cortical bone is. This is a very good indication of good healthy bone

bone loss is evident on the buccal/lingual surface of the tooth # 3.7

Don't let the bone angulation trick you. Always pay attention to the level of CEJs

semi-erupted wisdom tooth can cause mis interpretation of bone loss. But there is no boneloss in this X ray.

periodontal bone loss is not equal to peri-imlant bone loss.

in distal tooth # 2.5 and distal mesial of tooth # 3.4 is evident

In this exam we never comment on periodontal bone loss in mixed dentition condition. As it can be absolutely misleading

In teeth with attrition never comment on periodontal bone loss unless it is completely obvious, as attrition can be accompanied by passive eruption and that can increase the distance between CEJ and bone level.

In teeth with attrition never comment on periodontal bone loss unless it is completely obvious, as attrition can be accompanied by passive eruption and that can increase the distance between CEJ and bone level. It can happen in anterior or posterior region

in this case we have root stumps, they can over erupt and can be mis interpreted as periodontal bone loss

In teeth with attrition never comment on periodontal bone loss unless it is completely obvious, as attrition can be accompanied by passive eruption and that can increase the distance between CEJ and bone level.

periodontal bone loss is not selected because of over erupted tooth # 4.6 but there is bone loss in lower and upper premolar region