Table 1.
Microbial strains detected from peri-implant pockets by MALDI-TOF MS, in a decreasing order of occurrences out of 12 samples.
| Microbial strains | Occurences (out of 12) | Counts (×103 CFU/ml) | Microbial strains | Occurences (out of 12) | Counts (×103 CFU/ml) | ||
|---|---|---|---|---|---|---|---|
| Median | 25% | 75% | Median | ||||
| Streptococcus constellatus | 9 | 5.0 | 1.0 | 90.0 | Fusobacterium naviforme | 1 | 30.0 |
| Rothia aeria | 6 | 2.0 | 0.3 | 8.3 | Parvimonas micra | 1 | 100.0 |
| Prevotella buccae | 5 | 1.0 | 0.3 | 2.0 | Porphyromonas gingivalis | 1 | 300.0 |
| Streptococcus oralis | 5 | 6.0 | 3.4 | 6.0 | Slackia exigua | 1 | 1000.0 |
| Neisseria spp | 5 | 10.0 | 4.0 | 22.0 | Veillonella dispar | 1 | 100.0 |
| Actinomyces oris | 4 | 12.5 | 8.0 | 18.8 | Gemella haemolysans | 1 | 100.0 |
| Fusobacterium spp | 4 | 40.0 | 22.5 | 50.0 | Staphylococcus aureus | 1 | 7.0 |
| Streptococcus gordonii | 4 | 15.0 | 8.8 | 22.5 | Staphylococcus haemolyticus | 1 | 0.1 |
| Streptococcus intermedius | 4 | 100.0 | 82.5 | 200.0 | Staphylococcus hominis | 1 | 5.0 |
| Aggregatibacter aphrophilus | 4 | 40.0 | 27.5 | 112.5 | Streptococcus cristatus | 1 | 10.0 |
| Rothia dentocariosa | 4 | 21.0 | 1.8 | 42.5 | Streptococcus downei | 1 | 10.0 |
| Actinomyces odontolyticus | 3 | 1.0 | 1.0 | 1.5 | Streptococcus mitis | 1 | 9.0 |
| Prevotella intermedia | 3 | 1.0 | 0.9 | 350.5 | Streptococcus mutans | 1 | 30.0 |
| Prevotella melaninogenica | 3 | 5.0 | 3.0 | 52.5 | Streptococcus sinensis | 1 | 1.0 |
| Eikenella corrodens | 3 | 50.0 | 30.0 | 75.0 | Acinetobacter baumannii | 1 | 0.2 |
| GPAeB a | 3 | 20.0 | 15.0 | 60.0 | Brachybacterium spp | 1 | 200.0 |
| Neisseria flavescens | 3 | 12.0 | 11.0 | 29.0 | Campylobacter rectus | 1 | 100.0 |
| Rothia mucilaginosa | 3 | 6.0 | 4.5 | 8.0 | Capnocytophaga gingivalis | 1 | 1.0 |
| Fusobacterium nucleatum | 2 | 75.0 | 62.5 | 87.5 | Capnocytophaga ochracea | 1 | 30.0 |
| GPAnB b | 2 | 25.0 | 22.5 | 27.5 | Capnocytophaga spp | 1 | 30.0 |
| Veillonella parvula | 2 | 50.2 | 25.3 | 75.1 | Enterobacter amnigenus | 1 | 500.0 |
| Streptococcus anginosus | 2 | 55.0 | 32.5 | 77.5 | GNAeB c | 1 | 30.0 |
| Streptococcus salivarius | 2 | 5.5 | 4.8 | 6.3 | Kocuria spp | 1 | 800.0 |
| Streptococcus sanguinis | 2 | 27.5 | 26.3 | 28.8 | Micrococcus flavus | 1 | 2.0 |
| Bacillus spp | 2 | 4.0 | 3.5 | 4.5 | Neisseria elongata | 1 | 20.0 |
| Capnocytophaga sputigena | 2 | 5.1 | 2.7 | 7.6 | Neisseria meningitidis | 1 | 0.1 |
| Gemella morbillorum | 2 | 110.0 | 65.0 | 155.0 | Neisseria perflava | 1 | 1.0 |
| Neisseria macacae | 2 | 1.2 | 0.7 | 1.6 | Pectobacterium spp | 1 | 400.0 |
| Actinomyces spp | 1 | 10.0 | Candida albicans | 1 | 1.0 | ||
| Eubacterium yurii | 1 | 20.0 | |||||
Microbial counts of each strains detected from different samples are presented in their median, 25% and 75% quartiles (×103 CFU/ml). The boldfaced strains are anaerobic. aGPAeB: Gram positive aerobic bacilli.
bGPAnB: Gram positive anaerobic bacilli.
cGNAeB: Gram negative aerobic bacilli.
25%: the first quartile.
75%: the third quartile.