背景：类风湿性关节炎（RA）和强直性脊柱炎（AS）对骨骼有不同的影响，软骨和关节，有时会破坏脊柱和关节，和其他时间导致新骨形成。本研究旨在评估RA和AS对类型的影响(放射性，不透射线和混合）颌骨根尖周病变。
方法：本研究包括708名个体（97名患有AS，327与RA和284健康对照（C））和总共17,118颗牙齿（AS：2,442;RA：7,638;C：7,038）。牙齿的数量,拔牙和牙根管治疗和不透射线的存在，从牙科全景X射线照片中记录了射线可透和混合的根尖周围病变。使用Kruskal-Wallis和卡方检验进行统计分析。
结果：AS组和RA组的不透射线病变的频率相似（p>0.05），并且显着高于C组（p<0.05）（AS：13.4％；RA：6.1％；C：2％）。与C组相比，RA组的混合病变（AS：3.1％;RA：4.0％;C：0.4％）在统计学上明显更高（p<0.05），而AS-C和AS-RA组相似(p>0.05)。各组之间的射线可透性病变没有显着差异（p>0.05）。
结论：不透射线的根尖病变在RA和AS患者中常见，而RA患者的混合病变明显更高。
Rheumatoid arthritis (RA) and ankylosing spondylitis (AS) have different effects on bones, cartilage and joints, sometimes destroying the spine and joints, and other times causing new bone formation. This
study aimed to evaluate the effects of RA and AS on the types (radiolucent, radiopaque and mixed) of periapical lesions in jaw bones.
This
study included 708 individuals (97 with AS, 327 with RA and 284 healthy controls (C)) and a total of 17,118 teeth (AS: 2,442; RA: 7,638; C: 7,038). The number of teeth, extracted teeth and teeth with root canal treatment and the presence of radiopaque, radiolucent and mixed periapical lesions were recorded from dental panoramic radiographs. Kruskal-Wallis and chi-square tests were used for statistical analysis.
The frequency of radiopaque lesions in the AS and RA groups was similar (p > 0.05) and significantly higher than in the C group (p < 0.05) (AS: 13.4%; RA: 6.1%; C: 2%). Mixed lesions (AS: 3.1%; RA: 4.0%; C: 0.4%) were statistically significantly higher for the RA group compared to the C group (p < 0.05), while the AS-C and AS-RA groups were similar (p > 0.05). There was no significant difference in terms of radiolucent lesions among groups (p > 0.05).
Radiopaque apical lesions were frequent in RA and AS patients, while mixed lesions were significantly higher in RA patients.
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