Jan Bergström and Hans Preber (1994-05). “Tobacco Use as a Risk Factor”. Journal of Periodontology (American Academy of Periodontology) 65 (5): 545-550. doi:10.1902/jop.1994.65.5.545. ISSN0022-3492.
Scott L. Tomar ,Samira Asma (2000-05). “Smoking-Attributable Periodontitis in the United States: Findings From NHANES III”. Journal of Periodontology (American Academy of Periodontology) 71 (5): 743-751. doi:10.1902/jop.2000.71.5.743. ISSN0022-3492. PMID10872955.
Arbes SJ Jr, Agústsdóttir H, Slade GD (2001-02-09). “Environmental tobacco smoke and periodontal disease in the United States.”. American Journal of Public Health (American Public Health Association) 91 (2): 253-257. doi:10.2105/AJPH.91.2.253. ISSN0090-0036. PMID11211634.
Lucinara Ignez Tavares Luzzi, Sebastião Luiz Aguiar Greghi, Euloir Passanezi, Adriana Campos Passanezi Sant'ana, José Roberto Pereira Lauris, Tânia Mary Cestari (2007-12). “Evaluation of clinical periodontal conditions in smokers and non-smokers.”. Journal of applied oral science : revista FOB (Faculdade de Odontologia de Bauru) 15 (6): 512-517. doi:10.1590/S1678-77572007000600011. ISSN1678-7757. PMID19089190.
Scott L. Tomar ,Samira Asma (2000-05). “Smoking-Attributable Periodontitis in the United States: Findings From NHANES III”. Journal of Periodontology (American Academy of Periodontology) 71 (5): 743-751. doi:10.1902/jop.2000.71.5.743. ISSN0022-3492. PMID10872955.
Arbes SJ Jr, Agústsdóttir H, Slade GD (2001-02-09). “Environmental tobacco smoke and periodontal disease in the United States.”. American Journal of Public Health (American Public Health Association) 91 (2): 253-257. doi:10.2105/AJPH.91.2.253. ISSN0090-0036. PMID11211634.
Lucinara Ignez Tavares Luzzi, Sebastião Luiz Aguiar Greghi, Euloir Passanezi, Adriana Campos Passanezi Sant'ana, José Roberto Pereira Lauris, Tânia Mary Cestari (2007-12). “Evaluation of clinical periodontal conditions in smokers and non-smokers.”. Journal of applied oral science : revista FOB (Faculdade de Odontologia de Bauru) 15 (6): 512-517. doi:10.1590/S1678-77572007000600011. ISSN1678-7757. PMID19089190.
Jan Bergström and Hans Preber (1994-05). “Tobacco Use as a Risk Factor”. Journal of Periodontology (American Academy of Periodontology) 65 (5): 545-550. doi:10.1902/jop.1994.65.5.545. ISSN0022-3492.
Scott L. Tomar ,Samira Asma (2000-05). “Smoking-Attributable Periodontitis in the United States: Findings From NHANES III”. Journal of Periodontology (American Academy of Periodontology) 71 (5): 743-751. doi:10.1902/jop.2000.71.5.743. ISSN0022-3492. PMID10872955.
Arbes SJ Jr, Agústsdóttir H, Slade GD (2001-02-09). “Environmental tobacco smoke and periodontal disease in the United States.”. American Journal of Public Health (American Public Health Association) 91 (2): 253-257. doi:10.2105/AJPH.91.2.253. ISSN0090-0036. PMID11211634.
Lucinara Ignez Tavares Luzzi, Sebastião Luiz Aguiar Greghi, Euloir Passanezi, Adriana Campos Passanezi Sant'ana, José Roberto Pereira Lauris, Tânia Mary Cestari (2007-12). “Evaluation of clinical periodontal conditions in smokers and non-smokers.”. Journal of applied oral science : revista FOB (Faculdade de Odontologia de Bauru) 15 (6): 512-517. doi:10.1590/S1678-77572007000600011. ISSN1678-7757. PMID19089190.