Each is a potential effect of gingival recession,except one.Which is the exception?

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Xerostomia,oral dryness,is not caused by gingival recession; however,xerostomia often contributes to gingival recession.Abrasion and erosion of cementum can only occur if the gingival tissues have receded.Note that recession also uncovers the small amount of enamel near the cementoenamel junction (CEJ).Root surfaces exposed by gingival recession are susceptible to both increased calculus and biofilm accumulation and root caries.

Each Is a Potential Effect of Gingival Recession,except One