Elderly Health Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Kerman Oral and Dental Diseases Research Center, Kerman University of Medical Sciences, Kerman, Iran.
Non-Communicable Diseases Research Center, Endocrinology and Metabolism Population Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran.
Int Dent J. 2024 Feb;74(1):129-137. doi: 10.1016/j.identj.2023.07.012. Epub 2023 Aug 11.
There are currently no integrated data on the trend of dental caries amongst distinct age groups in Iran. We aimed to assess the national and subnational trend of dental caries of permanent teeth in Iran from 1990 to 2017.
A literature search about dental caries and the decayed-missing-filled teeth index (DMFT) was performed in PubMed, Web of Science, Scopus, and 3 national databases (in Persian). All eligible national oral health surveys in these 28 years were included. We categorised and aggregated the DMFT values and their components based on age (5-year-based groups from 5 to 9 to 60+ years), sex, year, and province. The data for missing spots were estimated using the spatiotemporal Bayesian hierarchical model. We used the bootstrap method in multilevel models to predict the uncertainty interval (UI) of the modelled results.
Nationally, the all-ages mean DMFT increased by nearly 58.0% (6.8 [95% UI, 4.1-10.5] in 1990 to 10.8 [95% UI, 7.5-14.5] in 2017). Decayed teeth (DT) and missing teeth (MT) rose by 84.5% and 31.6% during this period, respectively. Filled teeth (FT) showed almost a 2.6-fold increase in the same period from 0.6 (95% UI, 0.01-1.6) in 1990 to 1.7 (95% UI, 0.6-2.8) in 2017. The proportion of DT and FT continuously increased in both sexes. In 2017, the highest DT, MT, and FT were estimated in the 25-29 (4.9 [95% UI, 2.5-7.2]), 60+ (21.5 [95% UI, 17.5-25.4]), and 35-39 (2.6 [95% UI, 1.3-4.0]) year age groups.
Caries of permanent dentition levies a growing burden on the Iranian population. Considering the continuous increase in caries during the 1990-2017 period, Iranian policymakers should pay heed to these findings and react more proactively to mitigate this perpetuating issue. Implementing nationwide interventions such as sugar consumption management should be encouraged to achieve sustainable outcomes in this regards.
目前，伊朗不同年龄组的龋齿趋势尚无综合数据。本研究旨在评估 1990 年至 2017 年期间伊朗恒牙龋齿的国家和次国家趋势。
在 PubMed、Web of Science、Scopus 和 3 个国家数据库（波斯语）中，对龋齿和患龋失补牙数（DMFT）进行文献检索。纳入了这 28 年中所有符合条件的国家口腔健康调查。我们根据年龄（5 岁为一个年龄组，从 5 岁到 9 岁到 60 岁以上）、性别、年份和省份对 DMFT 值及其组成部分进行分类和汇总。使用时空贝叶斯分层模型估计缺失点数。我们在多水平模型中使用自举法预测模型结果的不确定性区间（UI）。
在全国范围内，所有年龄段的平均 DMFT 增加了近 58.0%（1990 年为 6.8[95%UI，4.1-10.5]，2017 年为 10.8[95%UI，7.5-14.5]）。在此期间，患龋齿（DT）和缺牙（MT）分别上升了 84.5%和 31.6%。同期，补牙（FT）增加了近 2.6 倍，从 1990 年的 0.6（95%UI，0.01-1.6）增加到 2017 年的 1.7（95%UI，0.6-2.8）。DT 和 FT 的比例在两性中均持续增加。2017 年，DT、MT 和 FT 最高的年龄组分别为 25-29 岁（4.9[95%UI，2.5-7.2]）、60 岁以上（21.5[95%UI，17.5-25.4]）和 35-39 岁（2.6[95%UI，1.3-4.0]）。
恒牙龋齿给伊朗人口带来了越来越大的负担。考虑到 1990-2017 年期间龋齿的持续增加，伊朗政策制定者应注意到这些发现，并更积极地采取行动，以减轻这一持续存在的问题。应鼓励实施全国性干预措施，如管理糖的消费，以在这方面取得可持续的成果。
