1) Poor oral hygiene – This can lead
to plaque and tartar build-up, with resultant dental problems.
2) Gum recession – This can occur naturally over time, whereby the gums shrink back to expose the
root surfaces.
3) Gum disease – The gums may not attach properly to the roots (receding gums), exposing the root
dentine which is not protected by enamel.
4) Over-brushing – If one brushes too forcefully, with a side-to side technique or with too hard a
brush, the enamel may be thinned.