Paul Roscoe Stillman
- Clinical researcher in periodontics
- Author of several publications
- Born in 1871
- Died in 1945
- Contributed to the field of periodontics

Capnocytophaga sp.
- Type of bacteria
- Associated with periodontal diseases
- Can cause severe infections
- Found in the oral cavity of humans and animals
- Can be transmitted through bites or scratches

Preston D. Miller
- Dentist and periodontist
- Known for his work on periodontal diseases
- Contributed to the development of periodontal treatments
- Published numerous research papers
- Active in professional dental organizations

Willoughby D. Miller
- Considered the father of oral microbiology
- Conducted extensive research on dental caries
- Developed the chemoparasitic theory of dental decay
- Pioneered the use of dental radiography
- Published influential books on dental hygiene and oral pathology