Background The aim of this study was to assess the association between levels of physical activity and oral health in adults residing in Spain.

Methods Cross-sectional data from the Spanish National Health Survey 2017 were analysed (n = 17,777 adults aged ≥15 years; 52.0% females). The International Physical Activity Questionnaire (IPAQ) short form was used to measure physical activity. Oral health was self-reported through eight variables. Covariates included were sex, age, marital status, education, obesity, smoking and alcohol consumption.

Results Dental caries (19.8% vs 27.8%), dental extraction (72.7% vs 75.4%), gingival bleeding (15.5% vs 19.1%), tooth movement (4.3% vs 5.9%) and missing tooth (57.9% vs 62.5%) were statistically significantly less frequent in the sufficient than insufficient physical activity group, whereas dental filling (74.2% vs 70.9%), dental material (36.6% vs 34.8%) and no missing tooth and no material (28.2% vs 25.1%) were statistically significantly more common. After adjustment, there was a negative relationship between physical activity and dental caries (OR = 0.72; 95%CI = 0.66-0.78), gingival bleeding (OR = 0.79; 95%CI = 0.72-0.86), tooth movement (OR = 0.83; 95%CI = 0.71-0.96) and missing tooth (OR = 0.91; 95%CI = 0.85-0.98). In contrast, physical activity was positively associated with dental material (OR = 1.16; 95%CI = 1.07-1.25).

Conclusions Participation in physical activity is favourably associated with some but not all self-reported oral health correlates.

背景技术这项研究的目的是评估居住在西班牙的成年人的体育锻炼水平与口腔健康之间的关系。

方法分析了2017年西班牙国家健康调查的横截面数据（n = 17777名年龄≥15岁的成年人; 52.0％的女性）。国际体育活动问卷（IPAQ）简短形式用于衡量体育活动。口腔健康是通过八个变量自我报告的。协变量包括性别，年龄，婚姻状况，教育程度，肥胖，吸烟和饮酒。

结果 龋齿（19.8％vs 27.8％），拔牙（72.7％vs 75.4％），牙龈出血（15.5％vs 19.1％），牙齿运动（4.3％vs 5.9％）和牙齿缺失（57.9％vs 62.5％）是充分运动与不充分运动组之间的统计学上发生频率显着降低，而充牙（74.2％vs 70.9％），牙科材料（36.6％vs 34.8％），无牙缺失和无材料（28.2％vs 25.1％）在统计学上显着比较普遍;普遍上。调整后，身体活动与龋齿（OR = 0.72； 95％CI = 0.66-0.78），牙龈出血（OR = 0.79； 95％CI = 0.72-0.86），牙齿运动（OR = 0.83）之间呈负相关。 ； 95％CI = 0.71-0.96）和缺牙（OR = 0.91； 95％CI = 0.85-0.98）。相反，体育锻炼与牙科材料呈正相关（OR = 1.16； 95％CI = 1.07-1.25）。

结论参加体育锻炼与某些但并非全部自我报告的口腔健康相关。