Incidence of Tooth Loss in Adults: A 4-Year Population-Based Prospective Cohort Study.

Manoelito Ferreira Silva-Junior,Marília Jesus Batista,Maria Da Luz Rosário De Sousa

doi:10.1155/2017/6074703

Manoelito Ferreira Silva-Junior, Marília Jesus Batista + Show 1 more

Open Access

https://doi.org/10.1155/2017/6074703

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Abstract

Objective To verify the incidence of tooth loss in extended age group of adults in 4 years. Materials and Methods The prospective cohort study assessed adults (20–64 years old) between 2011 and 2015, from Piracicaba, São Paulo, Brazil. The dependent variable was cumulative incidence of tooth loss, assessed by difference between missing teeth (M) of decayed, missing, and filled tooth index (DMFT) in 2011 and 2015. Participants were stratified into young (20–44 years old) and older (45–64 years old) adults. Mann–Whitney U test (p < 0.05) was used to compare the means of incidence of tooth loss between age groups. Results After four years, 57.7% (n = 143) of adults were followed up and the mean incidence of tooth loss was 0.91 (SD = 1.65); among these, 51 adults (35.7%) who lost their teeth showed mean tooth loss of 2.55 (SD = 1.86). In older adults, incidence of tooth loss was higher (p = 0.008), but no difference between age groups was found when only adults with incidence of tooth loss were assessed (p = 0.844). Conclusion There was higher incidence of tooth loss in older adults after four years, however, without difference between age groups when only those who lost teeth were evaluated.

Highlights

Tooth loss, still ranked among the hundred health conditions that most affect the world’s population [1], is an oral condition that leads to functional, aesthetic, and social damage with impact on people’s quality of life [2, 3] and is responsible for causing 7.6 million DALY [1].In spite of the more conservative philosophy within professional dental practice, where tooth extraction is treated as the last treatment option, there are cases in which this is the only choice [4, 5]
In Brazil, the mean number of teeth lost in adults (35–44 years) is almost four times higher than that in adolescents (15–19 years) and half of mean number in older persons (65–74 years) [11]; it is important to investigate the distribution of tooth loss in the age range between the age groups of adolescents, adults, and older persons
To calculate the representative sample of adults (20–64 years) living in Piracicaba, São Paulo, oral health conditions were assessed in different age groups and two different calculations were estimated for the sample size of young adults (20–44 years) and older adults (45–64 years)

Summary

Objective

To verify the incidence of tooth loss in extended age group of adults in 4 years. The dependent variable was cumulative incidence of tooth loss, assessed by difference between missing teeth (M) of decayed, missing, and filled tooth index (DMFT) in 2011 and 2015. 57.7% (n = 143) of adults were followed up and the mean incidence of tooth loss was 0.91 (SD = 1.65); among these, adults (35.7%) who lost their teeth showed mean tooth loss of 2.55 (SD = 1.86). Incidence of tooth loss was higher (p = 0.008), but no difference between age groups was found when only adults with incidence of tooth loss were assessed (p = 0.844). There was higher incidence of tooth loss in older adults after four years, without difference between age groups when only those who lost teeth were evaluated

Introduction

Material and Methods

Population and Sample

Data Collection

Results

Discussion