O'Beirne, G., Johnson, R. H., Persson, G. R., & Spektor, M. D. (1996). Efficacy of a sonic toothbrush on inflammation and probing depth in adult periodontitis. Journal of periodontology (1970), 67(9), 900. https://doi.org/10.1902/jop.1996.67.9.900
Chicago Style (17th ed.) CitationO'Beirne, G., R H. Johnson, G R. Persson, and M D. Spektor. "Efficacy of a Sonic Toothbrush on Inflammation and Probing Depth in Adult Periodontitis." Journal of Periodontology (1970) 67, no. 9 (1996): 900. https://doi.org/10.1902/jop.1996.67.9.900.
MLA (9th ed.) CitationO'Beirne, G., et al. "Efficacy of a Sonic Toothbrush on Inflammation and Probing Depth in Adult Periodontitis." Journal of Periodontology (1970), vol. 67, no. 9, 1996, p. 900, https://doi.org/10.1902/jop.1996.67.9.900.
Warning: These citations may not always be 100% accurate.