Ten-year longitudinal study on the state of dentition and subjective masticatory ability in community-dwelling elderly people  Naoko Sato, Takahiro Ono, Haruka Kon, Naoki Sakurai, Shoji Kohno, Akihiro Yoshihara, Hideo Miyazaki  Journal of Prosthodontic Research  Volume 60, Issue 3, Pages 177-184 (July 2016) DOI: 10.1016/j.jpor.2015.12.008 Copyright © 2016 The Authors Terms and Conditions

Fig. 1 Miyachi's Triangular Classification [14] labeled using the notation used by Kuboki et al. [13]. Zone A: subjects with ten or more occlusal supports; Zone B: subjects with nine to five occlusal supports; Zone D: subjects with four or fewer occlusal supports and 11 or more remaining teeth; Zone C: subjects with ten or fewer remaining teeth. Journal of Prosthodontic Research 2016 60, 177-184DOI: (10.1016/j.jpor.2015.12.008) Copyright © 2016 The Authors Terms and Conditions

Fig. 2 Tooth loss during ten years in each Zone classified at baseline study. Journal of Prosthodontic Research 2016 60, 177-184DOI: (10.1016/j.jpor.2015.12.008) Copyright © 2016 The Authors Terms and Conditions

Fig. 3 Loss of occlusal supports during ten years in each Zone classified at baseline study. Journal of Prosthodontic Research 2016 60, 177-184DOI: (10.1016/j.jpor.2015.12.008) Copyright © 2016 The Authors Terms and Conditions