Journal of Prevention and Treatment for Stomatological Diseases ›› 2017, Vol. 25 ›› Issue (11): 706-711.doi: 10.12016/j.issn.2096-1456.2017.11.006

• The Fourth National Epidemiological Survey of Oral Health • Previous Articles     Next Articles

A sampling survey of permanent crown-root caries in 55-74-year-old population in Guangdong Province (2015-2016)

Yan CHEN1(), Jianbo LI2, Wanghong ZHAO1, Weihua FAN2, Buling WU1(), Shaohong HUANG2()   

  1. 1. Nanfang Hospital, Southern Medical University & Stomatological College of Southern Medical University, Guangzhou 510080, China
    2. Stomatological Hospital, Southern Medical University, Guangzhou 510280, China
  • Received:2017-09-08 Revised:2017-10-14 Online:2017-11-20 Published:2018-09-03

Abstract:

Objective To investigate the current status of caries on permanent teeth in a population of 55-74-year-old in Guangdong Province, thus to provide scientific basis for the establishment of oral health care policies in Guangdong. Methods An equal-sized stratified multi-stage randomly sampling design was applied to obtain representative sample groups consisted of 288 Guangdong residents each, aged at either 55-64 or 65-74 years old, with a gender ratio of half to half. The caries on the crowns and roots of permanent teeth were assessed according to "The Guideline for the 4th National Oral Health Survey"; thereafter the prevalence and mean DFT (decayed and filled tooth) of permanent teeth were calculated. Results In the population of 55-64-year-old, the prevalence of crown caries was 77.08%, with a mean DFT of 2.94, and a filled rate of 21.87%; while the prevalence of root caries was 59.38%, with a mean DFT of 1.82, and a filled rate of 9.18%; and the prevalence of residual roots was 46.18%. In the population of 65-74-year-old, the prevalence of crown caries was 81.25%, with a mean DFT of 3.45, and a filled rate of 16.40%; while the prevalence of root caries was 63.19%, with a mean DFT of 2.34, and a filled rate of 9.18%; and the prevalence of residual roots was 50.35%. In the population of 55-64-year-old, the prevalence and the mean DFT of crown caries were higher in female when compared to male. And the mean DFT of root caries were higher in countryside when compared to the urban opponents. In the population of 65-74-year-old, the female had higher mean DFT score in crown caries than that in male. And the prevalence of caries of root and mean DFT of root caries were higher in countryside than that in the urban opponents. Conclusion There was a high level of crown and root caries in Guangdong adults, while the filling rate was low, most of the involved teeth were not filled.

Key words: Caries, Permanent tooth, Old people, Oral epidemiology, Cross-sectional survey

CLC Number: 

  • R781.1

Table 1

The prevalence of crown caries among the population aged 55-74 years old in Guangdong Province"

年龄(岁) 城乡/性别 受检人数 龋(D) 补(F) 龋补(DF) χ2 P
人数 % 人数 % 人数 %
55~64 城市 144 90 62.50 65 45.14 113 78.47 0.314 0.575
农村 144 105 72.92 19 13.19 109 75.69
144 91 63.19 32 22.22 101 70.14 7.862 0.005
144 104 72.22 52 36.11 121 84.03
合计 288 195 67.71 84 29.17 222 77.08
65~74 城市 144 97 67.36 60 41.67 120 83.33 0.820 0.365
农村 144 112 77.78 10 6.94 114 79.17
144 104 72.22 29 20.14 115 79.86 0.365 0.546
144 105 72.92 41 28.47 119 82.64
合计 288 209 72.57 70 24.31 234 81.25
总计 576 404 70.14 154 26.74 456 79.17

Table 2

The mean DFT of crown caries among the population aged 55-74 years old in Guangdong Province"

年龄
(岁)
城乡/
性别
受检
人数
龋(D) 补(F) 龋补(DF) t P
牙数 $\bar{x}$ ± s 构成比
(%)
牙数 $\bar{x}$± s 构成比
(%)
牙数 $\bar{x}$± s
55~64 城市 144 261 1.81 ± 2.44 62.59 156 1.08 ± 1.67 37.41 417 2.90 ± 3.08 0.23 0.821
农村 144 400 2.78 ± 3.06 93.24 29 0.20 ± 0.62 6.76 429 2.98 ± 3.18
144 303 2.10 ± 2.59 85.59 51 0.35 ± 0.75 14.41 354 2.46 ± 2.67 2.63 0.009
144 358 2.49 ± 3.01 72.76 134 0.93 ± 1.68 27.24 492 3.42 ± 3.47
合计 288 661 2.30 ± 2.81 78.13 185 0.64 ± 1.33 21.87 846 2.94 ± 3.13
65~74 城市 144 344 2.39 ± 2.97 70.06 147 1.02 ± 1.66 29.94 491 3.41 ± 3.25 0.21 0.834
农村 144 487 3.38 ± 3.50 96.82 16 0.11 ± 0.49 3.18 503 3.49 ± 3.49
144 371 2.58 ± 3.19 86.89 56 0.39 ± 0.99 13.11 427 2.97 ± 3.24 2.47 0.014
144 460 3.19 ± 3.34 81.13 107 0.74 ± 1.54 18.87 567 3.94 ± 3.44
合计 288 831 2.89 ± 3.28 83.60 163 0.57 ± 1.30 16.40 994 3.45 ± 3.37
总计 576 1 492 2.59 ± 3.06 81.09 348 0.60 ± 1.32 18.91 1 840 3.19 ± 3.26

Table 3

The prevalence of root caries among the population aged 55-74 years old in Guangdong Province"

年龄
(岁)
城乡/
性别
受检
人数
龋(D) 补(F) 龋补(DF) χ2 P
人数 % 人数 % 人数 %
55~64 城市 144 71 49.31 17 11.81 79 54.86 2.433 0.119
农村 144 91 63.24 2 1.39 92 63.89
144 83 57.64 9 6.25 88 61.11 0.360 0.549
144 79 54.86 10 6.94 83 57.64
合计 288 162 56.25 19 6.60 171 59.38
65~74 城市 144 80 55.56 9 6.25 82 56.94 4.837 0.028
农村 144 98 68.06 7 4.86 100 69.44
144 87 60.42 9 6.25 89 61.81 0.239 0.625
144 91 63.19 7 4.86 93 64.58
合计 288 178 61.81 16 5.56 120 63.19
总计 576 340 59.03 35 6.08 291 50.52

Table 4

The mean DFT of root caries among the population aged 55-74 years old in Guangdong Province"

年龄
(岁)
城乡/
性别
受检
人数
龋(D) 补(F) 龋补(DF) t P
牙数 $\bar{x}$± s 构成比
(%)
牙数 $\bar{x}$± s 构成比
(%)
牙数 $\bar{x}$± s
55~64 城市 144 171 1.19 ± 1.88 78.80 46 0.04 ± 0.45 21.20 217 1.51 ± 2.25 2.12 0.035
农村 144 304 2.11 ± 2.67 99.35 2 0.01 ± 0.12 0.65 306 2.13 ± 2.68
144 243 1.69 ± 2.30 93.82 16 0.11 ± 0.50 6.18 259 1.80 ± 2.37 0.12 0.906
144 232 1.61 ± 2.41 54.55 32 0.22 ± 1.01 12.12 264 1.83 ± 2.61
合计 288 475 1.65 ± 2.35 90.82 48 0.17 ± 0.80 9.18 523 1.82 ± 2.49
65~74 城市 144 239 1.66 ± 2.58 90.53 25 0.17 ± 0.86 9.47 264 1.83 ± 2.83 2.88 0.004
农村 144 393 2.73 ± 3.11 95.85 17 0.12 ± 0.62 4.15 410 2.85 ± 3.13
144 276 1.92 ± 2.65 92.00 24 0.17 ± 0.78 8.00 300 2.08 ± 2.77 1.45 0.149
144 356 2.47 ± 3.12 95.19 18 0.13 ± 0.72 4.81 374 2.60 ± 3.24
合计 288 632 2.19 ± 2.90 93.78 42 0.15 ± 0.75 6.23 674 2.34 ± 3.02
总计 576 1 107 1.92 ± 2.65 92.48 90 0.16 ± 0.78 7.52 1 197 2.08 ± 2.78

Table 5

The comparison of caries between 55-64 years old people and 65-74 years old people in Guangdong"

年龄(岁) 受检
人数
冠龋患病率
(%)
冠龋
龋均
根龋患病率
(%)
根龋
龋均
55~64 288 77.08 2.94 59.38 1.82
65~74 288 81.25 3.45 63.19 2.34
χ2值或t 1.52 1.90 0.89 2.27
P 0.218 0.058 0.347 0.023

Table 6

The comparison of crown-root caries among the population aged 65-74 years old with that in 2005"

冠根龋 时间 受检人数 患龋率(%) χ21 P1 龋均 t P2 充填率(%) χ22 P3
冠龋 2015-2016年 288 81.25 5.690 0.017 3.45 0.33 0.740 16.40 77.474 < 0.0001
2005年 720 74.17 3.37 6.68
根龋 2015-2016年 288 63.19 0.062 0.804 2.34 1.48 0.138 6.23 55.732 < 0.0001
2005年 720 64.03 2.67 1.09
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