| NIPTS | noise-induced permanent threshold shift |
|---|---|
| PDRB | Permanent Diability Rating Board |
| PPD | packs per day; paraphenylenediamine; percussion and postural drainage; permanent partial disability;... |
| PPI | partial permanent impairment; patient package insert; present pain intensity; purified porcine insul... |
| PPM | permanent pacemaker; phosphopentomutase; physician practice management; pigmented pupillary membrane... |
| dental restoration, permanent | A restoration designed to remain in service for not less than 20 to 30 years, usually made of gold casting, cohesive gold, or amalgam. (12 Dec 1998) |
|---|---|
| dentition, permanent | The 32 teeth of adulthood that either replace or are added to the complement of deciduous teeth. (12 Dec 1998) |