Adegbembo A O, el-Nadeef M A
Int Dent J. 1995 Jun;45(3):197-203.
A national pathfinder survey of periodontal conditions and treatment needs was carried out among 4631 male and female Nigerians drawn from all four Primary Health Care (PHC) Administrative zones. The survey was conducted according to WHO Basic Methods. Differences between PHC zones, and rural and urban communities were examined. The Chi-Square test was used to analyse differences in frequencies between groups. The percentage of healthy subjects was very small, nearly zero, in all age groups and in all zones. A majority of subjects had calculus. The prevalence of shallow and deep pockets were relatively high; prevalence of '4 or 5mm pockets' increased from 39 per cent among 15 year olds to 57 per cent among those 25-29 years before declining to 17 per cent among those 65 years of age and older. Prevalence of deep pockets increased steadily with age. Few sextants had '4 or 5mm pockets' or deep pockets. There were also very few edentulous sextants. Differences between the PHC zones, and rural/urban areas were mainly limited to number of sextants with '4 or 5mm pockets'. Virtually all subjects needed one form of periodontal treatment as assessed by the CPITN.
在从四个初级卫生保健（PHC）行政区抽取的4631名尼日利亚男女中开展了一项关于牙周状况和治疗需求的全国探索性调查。该调查按照世界卫生组织基本方法进行。对初级卫生保健区以及农村和城市社区之间的差异进行了研究。采用卡方检验分析各组频率差异。在所有年龄组和所有区域，健康受试者的比例都非常小，几乎为零。大多数受试者有牙结石。浅袋和深袋的患病率相对较高；“4或5毫米袋”的患病率从15岁人群中的39%增至25 - 29岁人群中的57%，之后在65岁及以上人群中降至17%。深袋患病率随年龄稳步上升。很少有牙段有“4或5毫米袋”或深袋。无牙牙段也很少。初级卫生保健区以及农村/城市地区之间的差异主要限于有“4或5毫米袋”的牙段数量。根据社区牙周指数（CPITN）评估，几乎所有受试者都需要某种形式的牙周治疗。
