hello and welcome,
since you are taking anti-anxiety or anti-depressant drug,there will be dry mouth due to decreased salivary flow.thus there is more chance of dental caries
i would advice you to take artificial salivary substitutes like pilocarpine.
there is gum infection ,pseudopocket and loss of epithelial attachment and gingival recession
resulting in tooth moblility thus periodontitis.
the gingivitis can be due to several reasons-
visit your dentist
and get scaling done.
bone grafting,curettage and root planning can be done if needed.
splinting can be done to fix the tooth depending on its severity.
maintain good oral hygiene.