Table 2: Species-specific PCR primers for periodontal pathogens detection.
| Strain | Oligonucleotides (5'→3') | Amplicon size (bp) |
| Pg | AGG CAG CTT GCC ATA CTG CG | 404 |
| ACT GTT AGC AAC TAC CGA TGT | ||
| Pi | TTT GTT GGG GAG TAA AGC GGG | 575 |
| TCA ACA TCT CTG TAT CCT GCG T | ||
| Pn | ATG AAA CAA AGG TTT TCC GGT AAG | 804 |
| CCC ACG TCT CTG TGG GCT GCG A |