The primary etiological factor for the development of root caries is
poor oral hygiene
gingival recession
acquired xerostomia
cigarette smoking
2 explanations
Rolando90
The answer here is wrong, should be poor oral hygiene
0
sharatpani
No... please see https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7114028/#:~:text=Factors%20like%20gingival%20recession%2C%20poor,lesion%20into%20the%20tooth%20structure.
While both are factors the primary factor is gingival recession. You can have root caries even with good oral hygiene (eg. xerostomia due to drugs radiation etc) but you cannot have root caries without recession
Rolando90
sharatpani