Bogomolets National Medical University of the Ministry of Health of Ukraine, 13 Tarasa Shevchenko Blvd., Kyiv, 01601, Ukraine.
Probl Radiac Med Radiobiol. 2021 Dec;26:426-436. doi: 10.33145/2304-8336-2021-26-426-436.
assessment of dental caries intensity in children with disturbances in tooth formation living in radiologically contaminated territories as a result of the Chornobyl NPP accident.
Children aged 6-14 years old (n = 1470) suffering from disturbances in tooth formation(DTF) with the residents of radiologically contaminated territories (n = 528) among them were enrolled in the study.The DTF subtypes were assayed, namely the systemic enamel hypoplasia (SEH) and molar incisor hypomineralisation(MIH). Personal radiation history was recorded. Intensity of caries and caries of surfaces in the mixed (i.e. transitional) occlusion (df+DMF, dfs+DMFS coefficients) and permanent occlusion (DMF, DMFS coefficients) was identified.
Caries intensity in the exposed children suffering DTF with mixed and permanent dental occlusion was sig-nificantly higher vs. either in children exposed to ionizing radiation with no DTF or in the control group (р < 0.001,р < 0.001 and р < 0.05, р < 0.001 correspondingly). The highest caries intensity of the permanent teeth was revealedin the residents of contaminated territories suffering SEH (6.95 ± 2.3) vs. cases of MIH (5.68 ± 1.97) as a result ofnonsymmetrical teeth involvement.
The highest values of df+DMF, dfs+DMFS coefficients were diagnosed in children with a mixed dentalocclusion aged 6-14 years old living on territories contaminated as a result of the ChNPP accident as compared tothe not exposed subjects and control group (7.2 ± 2.07 and 8.98 ± 2.4, р < 0.001). A very high intensity of cariesand surface caries of permanent teeth (DMF = 6.79 ± 2.34, DMFS = 8.69 ± 2.75, р < 0.001) was established in children exposed to ionizing radiation and suffering DTF. Such a high intensity may be due to the impact of a set of negative factors including the ionizing radiation in low doses and peculiarities of economic component of social sta-tus of study subjects, namely the unbalanced diet. In case of permanent occlusion the intensity of caries and cariesof tooth of in children survived after the ChNPP accident and suffering SEH was significantly (р < 0.05) higher compared to the persons suffering MIH.
评估因切尔诺贝利核电站事故而受到放射性污染地区牙齿形成障碍儿童的龋齿严重程度。
本研究纳入了年龄在 6-14 岁（n=1470）的牙齿形成障碍（DTF）儿童（n=528）和居住在放射性污染地区的儿童。分析了 DTF 亚型，即全身性釉质发育不全（SEH）和磨牙切牙矿化不全（MIH）。记录个人辐射史。在混合（即过渡）咬合（df+DMF、dfs+DMFS 系数）和永久咬合（DMF、DMFS 系数）中确定龋齿和龋齿表面的严重程度。
与暴露于电离辐射但无 DTF 的儿童或对照组相比，患有混合和永久性牙列 DTF 的暴露儿童的龋齿严重程度明显更高（p<0.001，p<0.001 和 p<0.05，p<0.001 相应）。在受污染地区居住并患有 SEH 的儿童中，永久性牙齿的龋齿严重程度最高（6.95±2.3），而非 MIH 病例（5.68±1.97），这是由于非对称牙齿受累所致。
与未暴露于辐射的儿童和对照组相比，6-14 岁混合牙列儿童的 df+DMF 和 dfs+DMFS 系数值最高（7.2±2.07 和 8.98±2.4，p<0.001）。在暴露于电离辐射并患有 DTF 的儿童中，发现永久性牙齿的龋齿和表面龋齿的严重程度非常高（DMF=6.79±2.34，DMFS=8.69±2.75，p<0.001）。如此高的严重程度可能是由于一组负面因素的影响，包括低剂量电离辐射以及研究对象社会经济地位的经济成分的特殊性，即饮食不均衡。在永久性牙列中，与患有 MIH 的儿童相比，在切尔诺贝利核电站事故后幸存下来的 SEH 儿童的龋齿和牙齿龋齿严重程度显著更高（p<0.05）。
