Terças Analúcia Guerra, de Oliveira Ana Emília Figueiredo, Lopes Fernanda Ferreira, Maia Filho Etevaldo Matos
Department Federal Technological Teaching Center of Maranhão, São Luís, MA, Brazil.
J Appl Oral Sci. 2006 Jun;14(3):183-7. doi: 10.1590/s1678-77572006000300007.
This study investigated the prevalence of apical periodontitis (AP) and its association with endodontically treated teeth in residents of São Luís, MA, Brazil. Two-hundred complete series of periapical radiographs taken over a 10-year period (1993-2003) were retrieved from the files of four prosthesists and five periodontists. The Periapical Index (PAI) was used and the age range, sex, tooth groups, location and association with endodontic treatment (ET) were also analyzed. The Cohen Kappa and Chi-square tests were used for statistical analysis. Out of 200 patients, 135 presented at least one case of AP, which corresponds to a prevalence of 67.5%. Of the 5008 teeth examined, 296 had AP and 553 had ET. Therefore, considering the total number of teeth, AP and ET prevalences were 5.9% and 11%, respectively. Of the 553 endodontically treated teeth, 235 (42.5%) were associated with AP. Chi-square test showed a strong correlation between AP and ET (p<0.05). The 40-year-old age group was significantly the most prevalent (p<0.05). There was no association between AP and patient's sex (p>0.05). The maxillary incisors were the most affected group of teeth (p<0.05). AP had predilection for the maxilla and was strongly associated with endodontically treated teeth (p<0.05). The prevalence of apical periodontitis and endodontically treated teeth with AP was high and similar to the results of studies performed in other countries.
本研究调查了巴西马塞约州圣路易斯市居民根尖周炎（AP）的患病率及其与根管治疗牙齿的相关性。从四位修复科医生和五位牙周病医生的档案中检索了在10年期间（1993 - 2003年）拍摄的200套完整的根尖片。使用根尖指数（PAI），并分析年龄范围、性别、牙组、位置以及与根管治疗（ET）的相关性。采用Cohen Kappa检验和卡方检验进行统计分析。在200名患者中，135人至少有一例AP，患病率为67.5%。在检查的5008颗牙齿中，296颗有AP，553颗接受了ET。因此，考虑到牙齿总数，AP和ET的患病率分别为5.9%和11%。在553颗接受根管治疗的牙齿中，235颗（42.5%）与AP相关。卡方检验显示AP与ET之间存在强相关性（p<0.05）。40岁年龄组的患病率明显最高（p<0.05）。AP与患者性别之间无相关性（p>0.05）。上颌切牙是受影响最严重的牙组（p<0.05）。AP在上颌更常见，且与根管治疗的牙齿密切相关（p<0.05）。根尖周炎以及伴有AP的根管治疗牙齿的患病率较高，与其他国家进行的研究结果相似。
