Johanna Timm, PhD Dec 12, 2015:

PA PA, PAR, Pa ; Kurzbezeichnungen für Parodontal...: z.B. PA-Plan = parodontaler Heil- und Kostenplan, Parodontalbehandlung
http://www.zahnwissen.de/frameset_lexi.htm?lexikon_pa-pm.htm

barbarameyer Dec 12, 2015:

@ Magdalena Kowalska Thank you for clarifying :-)

Magdalena Kowalska (asker) Dec 12, 2015:

PA must be Parodontitis in German. I wouldn't use "PD tooth"; maybe "tooth affected by PD", or "PD-affected tooth".

barbarameyer Dec 12, 2015:

@ Magdalena Kowalska a. Please share with us the expanded form of "PA-" in German. Thanks.
b. I'd be careful with "PD tooth". The googles for this point to PD --> probing depth.

Magdalena Kowalska (asker) Dec 12, 2015:

PD seems right PD seems right, see http://www.ncbi.nlm.nih.gov/pubmed?Db=pubmed&Cmd=ShowDetailV... , http://www.ncbi.nlm.nih.gov/pubmed?Db=pubmed&Cmd=ShowDetailV... and http://www.ncbi.nlm.nih.gov/pubmed?Db=pubmed&Cmd=ShowDetailV... all found via the excellent nactem database http://www.nactem.ac.uk/software/acromine/#demo

Magdalena Kowalska (asker) Dec 12, 2015:

The actual sentence is "Wie lange hält der PA-Zahn?" It means the tooth is partially destroyed, but not lost yet. I find a lot of hits in literature with "periodontal teeth", and some with "periodontic teeth".