Relationship between number of natural teeth in older Japanese people and health related functioning

Abstract

The objective was to assess the relationship between number of functional occluding natural pairs of teeth and health related functioning in older free living Japanese people using the SF-20. The participants were 107 elderly people aged 80 years. Health related functioning was measured with the SF-20. The numbers of functional occluding natural pairs of teeth (OPs) were calculated and scored as follows: 1, for each pair of anterior teeth and premolars in occlusion. Molar functional natural occluding pairs were scored 2 for each occluding pair. The number of functional occluding pairs was assessed separately as anterior natural occluding pairs (AOPs) and posterior occluding pairs (POPs). There were significant differences in the role functioning subscale of SF-20 between those who were edentulous and those with one to nine natural teeth and 10 or more natural teeth (P = 0.030). Those with one to six AOPs had significantly higher role functioning than the zero AOPs group (P = 0.042). Those with 1-12 POPs also had significantly higher role functioning scores than the zero natural POPs group (P = 0.007). However, there were no significant relationships between number of natural teeth, OPs or AOPs, and POPs on the one hand, and all other subscales of SF-20 on the other hand. The community-dwelling 80-year-old Japanese people in this study had overall good health related functioning. The number of functional occluding pairs of natural teeth, especially POPs, was related with the role functioning subscale of SF-20 but had no significant relationships to the other dimensions of SF-20.

Exploring the quality of life after denture‐wearing within elders in Kaohsiung

“…On the contrary, the dentulous elderly's satisfaction with the quality of life is not as much as that of those edentulous elderly with satisfying denture replacement. Many previous researches [23][24][25][26][27][28][29][30][31][32][33][34] share the same result with the current study that the elderly individual's quality of life is affected by the number of tooth lose, the position of permanent teeth remaining and even the condition of the permanent teeth remaining (whether there is periodontosis or not). Pallegedara and Ekanayake 35 points out that the elderly losing more than 25 teeth or those with anterior dental space might be affected more on their oral health-related quality of life.…”

Tooth Loss and Risk of Dementia in the Community: the Hisayama Study

“…Unerupted or congenitally missing teeth, root tips, and extremely mobile teeth that were indicated for extraction were not included as remaining teeth. According to the established data of the extent of tooth loss, the number of remaining teeth was grouped into four categories (≥20, 10–19, 1–9, 0) . The dentists also evaluated denture use for each subject during the clinical oral examination.…”

Periodontitis and systemic diseases: A literature review

“…For example, the number of teeth is a significant and independent risk indicator for early mortality and poorer general health status. [5455] Masticatory disability has likewise been related to early mortality. [56] Oral health and nutrition have a synergistic relation.…”