There are number of published article in literature describing dermatoglyphics in relation to periodontal disease

Better do a search in Google scholar

These are few 

http://link.springer.com/article/10.1007%2FBF02445214

http://www.ncbi.nlm.nih.gov/pubmed/9582631

http://www.indianjournals.com/ijor.aspx?target=ijor:ijfmt&volume=4&issue=2&article=006

Search as "dermatoglyphics and periodontal diseases" in Google scholar and you would get the articles and answers.

Regards