Juárez, I., Larroulet, S., Ojeda, M. and Rosas, C. 2014. Periodontal status of teeth restored with crowns and its contralateral homologue, Valdivia- Chile. Journal of Oral Research. 4, 3 (Dec. 2014), 167-173. DOI:https://doi.org/10.17126/joralres.2015.035.