Journal of Prevention and Treatment for Stomatological Diseases ›› 2017, Vol. 25 ›› Issue (12): 806-809.doi: 10.12016/j.issn.2096-1456.2017.12.012

• Prevention and Treatment Practice • Previous Articles     Next Articles

Epidemiology survey of dental fluorosis in rural area of Tianjin city

Jing HU(), Zongrui TIAN, Yanmei DAI, Zhaofei FENG   

  1. Department of Oral Prevention and Care Tianjin Stomatological Hospital Nankai University Tianjin 300041 China
  • Received:2016-11-22 Revised:2017-04-15 Online:2017-01-04 Published:2018-09-03

Abstract:

Objective To investigate the situation of dental fluorosis and residents awareness of dental flourosis in rural area of Tianjin, providing the basis for control of dental fluorosis prevalence level and continuous supervise of dental fluorosis prevalence. Methods The objectives were selected by stratified cluster sampling method. Health interview survey and oral examination were perfor med. Results The prevalence of dental fluorosis was 5.2% in 3-5 years children group, 68.6% in 12-14 years youth group, 64.5% in 15 years youth group, and 68.2% in 35-74 years group. The prevalence of dental fluorosis in 12-14 years group was lower than that in 2005 (χ2=21.62, P < 0.001). The community index of dental fluorosis (CFI ) was 0.1 in 3-5 years children group, 1.48 in 12-15 years youth group, 1.85 in 35-74 years old group. 47.7% students knew nothing about dental fluorosis, and 54.2% adult dental fluorosis patients did not know they were suffering from dental fluorosis. 47.4% of the subjects knew the relationship between dental fluorosis and fluoride in drinking water, and 18.8% subjects considered dental fluorosis was related with tooth cleaning. Conclusion The prevalence of dental fluorosis in 12-14 years old students was lower than 12 years old at 2005, but the increase of prevalence of dental fluorosis in 3-5 years children indicates the intake of fluorosis should be more strictly controlled. The awareness of dental fluorosis in rural area residents is poor and oral health education about fluorosis should be enhanced.

Key words: Denta l fluorosis, Random sampling survey, Water fluorosis, Oral health education

CLC Number: 

  • R781.2

Table 1

Dental flourosis in 3-5 years old children人(%)"

性别 受检人数 正常 可疑 极轻 患病人数 CFI
340 318(93.5) 0(0.0) 6(1.8) 12(3.5) 3(0.9) 1(0.3) 22(6.5) 0.12
339 325(95.9) 1(0.3) 4(1.1) 8(2.4) 1(0.3) 0(0.0) 13(3.8) 0.07
合计 679 643(94.7) 1(0.1) 7(1.5) 20(2.9) 4(0.6) 1(0.1) 35(5.2) 0.10

Table 2

Dental flourosis in 12-15 years old students 人(%)"

年龄(岁) 性别 受检人数 正常 可疑 极轻 患病率 CFI
12~14 406 59(14.5) 64(15.8) 79(19.5) 121(29.8) 73(18.0) 10(2.5) 283(69.7) 1.51
380 54(14.2) 70(18.4) 74(19.5) 107(28.2) 71(18.7) 4(1.1) 256(67.4) 1.45
合计 786 113(14.4) 134(17.0) 153(19.5) 228(29.0) 144(18.3) 14(1.8) 539(68.6) 1.48
15 123 18(14.6) 18(14.6) 23(18.7) 30(24.4) 30(24.4) 4(3.3) 87(70.7) 1.61
122 24(19.7) 27(22.1) 19(15.6) 24(19.7) 25(20.5) 3(2.5) 71(58.2) 1.37
合计 245 42(17.1) 45(18.4) 42(17.1) 54(22.0) 55(22.4) 7(2.9) 158(64.5) 1.49

Table 3

Dental flourosis in 35-74 years old people 人(%)"

性别 受检人数 正常 可疑 极轻 患病人数 CFI
81 10(12.3) 7(8.6) 9(11.1) 22(27.2) 14(17.3) 19(23.5) 64(79.1) 2.15
111 33(29.7) 11(9.9) 12(10.8) 14(12.6) 28(25.2) 13(11.7) 37(60.4) 1.63
合计 192 43(22.4) 18(9.4) 21(10.6) 36(18.8) 42(21.9) 32(16.7) 104(68.2) 1.85

Table 4

Dental flourosis situation in rural area of Tianjin in 2005 and 2006"

时间 受检年龄组 受检人数 患病率(%) 氟牙症指数
2005年 12岁 389 70.4 1.78
2016年 12~14岁 786 68.6 1.48
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