What would the potential consequences be of accidentally obturating a about 1 mm or so long of the apical constriction/at the radiographic apex. I understand that's not what we aim for, but is there any research showing increase of failure in these cases. Excellent videos
Yes, there is. Sjogren's study on the clinical outcomes that shows the prognosis is diminished when teeth are overfilled. There are a couple of prognostic meta analysis studies in the literature that show it's better to be 1mm short than 1mm long. Cheers.
In my opinion, it's best to gently pass the green zone and just get into red once and then pull back to the 1mm mark in order to make sure you're exactly at the correct length and not getting a false reading.
Doctor sometimes I encounter cases where the actual apical constriction is shorter than the radiographic apex....am I supposed to go beyond and reach the radiographic apex?
Shanu Kaushish I am not a fully qualified dentist do please check that what I’m saying is correct, but to the best of my knowledge... The apical construction will always be shorter than the radiographic apex. Usually it will be within 2mm of the radiographic apex. So as long as your working length is within 2mm of the radiographic apex your good. Apex locators are 97% accurate so a working length radiograph and apex locator are the best ways to check this.
As @1995person said the apex locator is more accurate than the radiograph and but it can give you a false reading from lateral canals or coronal short circuits. So, always confirm with a radiograph and if you're within 1-2mm of the radiographic apex go with the EAL readings rather than the radiograph. Cheers!
GOod question for a video! But here’s the answer: I1. Creation of a fin at this junction anatomically can cause “tip lock.” And 2. The canal that joins will create a short radius curvatures beyond the point it joins. This increases the torque on the file at that point.
information in video help me understand clearly about CDJ and constriction are not always coincide, thanks . But in video II which don't have function English sub auto so hard for me to know all conversation, you could turn on function English sub auto, couldn't you?
thanks for sharing
What would the potential consequences be of accidentally obturating a about 1 mm or so long of the apical constriction/at the radiographic apex. I understand that's not what we aim for, but is there any research showing increase of failure in these cases. Excellent videos
Yes, there is. Sjogren's study on the clinical outcomes that shows the prognosis is diminished when teeth are overfilled. There are a couple of prognostic meta analysis studies in the literature that show it's better to be 1mm short than 1mm long. Cheers.
The apple analogy really helps!
thank you so much for information..
at 1 mm reading in apex locator!!!
am i right??
In my opinion, it's best to gently pass the green zone and just get into red once and then pull back to the 1mm mark in order to make sure you're exactly at the correct length and not getting a false reading.
Doctor sometimes I encounter cases where the actual apical constriction is shorter than the radiographic apex....am I supposed to go beyond and reach the radiographic apex?
Shanu Kaushish I am not a fully qualified dentist do please check that what I’m saying is correct, but to the best of my knowledge...
The apical construction will always be shorter than the radiographic apex. Usually it will be within 2mm of the radiographic apex. So as long as your working length is within 2mm of the radiographic apex your good. Apex locators are 97% accurate so a working length radiograph and apex locator are the best ways to check this.
@@1995pearson well explained of bringing the empire called apex locator and then take radiograph to check
As @1995person said the apex locator is more accurate than the radiograph and but it can give you a false reading from lateral canals or coronal short circuits. So, always confirm with a radiograph and if you're within 1-2mm of the radiographic apex go with the EAL readings rather than the radiograph. Cheers!
Why is there more risk of separating a file in case of MB and ML joining together?
GOod question for a video! But here’s the answer: I1. Creation of a fin at this junction anatomically can cause “tip lock.” And 2. The canal that joins will create a short radius curvatures beyond the point it joins. This increases the torque on the file at that point.
information in video help me understand clearly about CDJ and constriction are not always coincide, thanks . But in video II which don't have function English sub auto so hard for me to know all conversation, you could turn on function English sub auto, couldn't you?