Lawrence H P, Hunt R J, Beck J D
Department of Dental Ecology, University of North Carolina School of Dentistry, Chapel Hill 27599-7450, USA.
J Public Health Dent. 1995 Spring;55(2):69-78. doi: 10.1111/j.1752-7325.1995.tb02335.x.
The purposes of this study were to describe the incidence of root caries and to identify its risk factors in a representative sample of older adults.
Root caries incidence was estimated and multivariate risk assessment models were developed to identify predictors for root caries in a three-year follow-up study of 234 black and 218 white noninstitutionalized adults aged 65 and older residing in North Carolina.
During the observation period, 29 percent of blacks developed root caries, compared to 39 percent of whites (P < .05). The mean net DFS increment per person was 0.55 +/- 0.13 root surfaces for blacks vs 0.80 +/- 0.21 for whites (P > .32). Multivariate logistic regression analysis indicated that blacks wearing a partial denture, having some root fragments, having an average gingival recession > or = 2 mm, and being free of P. intermedia were at greater risk for developing new root caries. The model for whites showed that retired people with their most severe gingival recession > or = 4 mm, an average probing pocket depth > or = 2 mm, and taking antihistamines were more likely to develop new lesions.
These findings suggest that older blacks had less risk of root caries than whites, and in both groups indicators of poor periodontal status increased the risk of root caries.
本研究旨在描述老年人代表性样本中根龋的发病率，并确定其风险因素。
在对居住在北卡罗来纳州的234名65岁及以上的黑人和218名65岁及以上的非机构化白人成年人进行的为期三年的随访研究中，估计根龋发病率并建立多变量风险评估模型以确定根龋的预测因素。
在观察期内，29%的黑人发生了根龋，而白人的这一比例为39%（P < 0.05）。黑人每人根面平均净DFS增量为0.55±0.13，而白人为0.80±0.21（P > 0.32）。多变量逻辑回归分析表明，佩戴局部义齿、有一些牙根碎片、平均牙龈退缩≥2mm且无中间普氏菌的黑人发生新根龋的风险更高。白人模型显示，牙龈退缩最严重≥4mm、平均探诊袋深度≥2mm且服用抗组胺药的退休人员更易发生新病变。
这些发现表明，老年黑人患根龋的风险低于白人，且在两组中，牙周状况差的指标均增加了根龋风险。
