Departamento de Salud Pública, Facultad de Medicina, Pontificia Universidad Católica de Chile, Santiago, Chile., Chile.
Escuela de Odontologia, Pontificia Universidad Catolica de Chile, Chile.
Community Dent Health. 2021 Nov 29;38(4):230-234. doi: 10.1922/CDH_00356Vigneaux05.
To describe prevalence of anterior tooth loss and its determinants among Chilean people aged over 15 years.
Cross-sectional study, using the sampling frame of the Chilean National Health Survey 2016-2017 (n=5473 participants). Multivariate logistic regressions were performed to obtain the prevalence and odds ratio (OR) for anterior tooth loss using a complex sampling method. We described anterior tooth loss affecting each jaw according to sex, age, educational level, urban/rural residence and having health insurance.
The odds of anterior tooth loss were 7.11 (95%CI: 4.57 - 10.78) and 4.84 (95%CI: 3.02 - 7.72) times higher for low-educated subjects compared to those with more educational, for the upper and lower jaw respectively. Also, the odds of anterior tooth loss for the upper jaw was 1.34 (CI 95%: 1.07 - 1.66) times higher in women, whereas for the lower jaw, no significant differences by sex were found (p-value 0.14). Adults having only the National Health Fund B insurance (FONASA B) had odds of losing one or more anterior teeth 2.43 (CI 95%: 1.34 - 4.39) times higher in the upper jaw and 2.08 (CI 95%: 1.03 - 4.20) in the lower jaw compared with those having Health Insurance Institutions (ISAPREs).
Our study showed for the first time that anterior tooth loss is a widespread condition in Chile, with marked inequities by sex, age, educational level, and geographical area. People in the public health insurance system have a higher odds of anterior tooth loss.
描述智利 15 岁以上人群前牙缺失的流行情况及其决定因素。
使用 2016-2017 年智利国家健康调查的抽样框架进行横断面研究（n=5473 名参与者）。采用复杂抽样方法，通过多变量逻辑回归获得前牙缺失的患病率和优势比（OR）。我们根据性别、年龄、教育水平、城乡居住和是否有医疗保险，描述了每个颌骨的前牙缺失情况。
与受教育程度较高者相比，低教育程度者的上颌前牙缺失的优势比分别为 7.11（95%CI：4.57-10.78）和 4.84（95%CI：3.02-7.72），下颌前牙缺失的优势比分别为 6.46（95%CI：4.34-9.54）和 4.43（95%CI：2.73-7.21）。此外，女性上颌前牙缺失的优势比为 1.34（95%CI：1.07-1.66），而下颌前牙缺失则无显著性别差异（p 值为 0.14）。仅拥有国家健康基金 B 保险（FONASA B）的成年人，上颌前牙缺失的风险比为 2.43（95%CI：1.34-4.39），下颌前牙缺失的风险比为 2.08（95%CI：1.03-4.20），而上颌和下颌前牙缺失的风险比均显著高于拥有健康保险机构（ISAPREs）的成年人。
本研究首次表明，前牙缺失在智利是一种普遍存在的情况，存在显著的性别、年龄、教育水平和地理区域差异。公共医疗保险系统中的人群前牙缺失的风险更高。
