The Journal
The ordinal scale used to measure root
resorption by Levander E. & Malmgren3
Grade 0
o
o
Normal Intact Root Morphology
Apical Outline Is Smooth And Continuous
o Distance Between The Root And Lamina Dura Is Uniform
GRADE I
o Evidence of erosion periapically
o Root length probably not yet affected
GRADE 2
o Scalloping and blunting of apex
GRADE 3
o One-fourth of the root resorbed
Grade 4
o Loss of Atleast One-half The Original Length
Etiological factors
Individual susceptibility
Genetics
Systemic factors
Nutrition
Gender of the patient
Chronologic age
Dental age
Tooth structure
Traumatized teeth
Presence of root resorption before orthodontic treatment
Endodontically treated teeth
Adverse habits as nail-biting, tongue thrusting
Specific tooth vulnerability to tooth resorption
40
Vol. 14 No. 1
Jan-Apr 2018