Kirkevang L-L, Vaeth M, Hörsted-Bindslev P, Wenzel A
Department of Oral Radiology, School of Dentistry, Royal Dental College, University of Aarhus, Vennelyst Boulevard, DK-8000 Aarhus C, Denmark.
Int Endod J. 2006 Feb;39(2):100-7. doi: 10.1111/j.1365-2591.2006.01051.x.
To describe and discuss changes in periapical and endodontic status in a general Danish population.
In 1997, 616 randomly selected individuals had a full-mouth radiographic survey taken. In 2003, 77% of the participants attended for a new full-mouth radiographic examination. Information on endodontic treatment and periapical status was obtained. The periapical index (PAI) was used to assess apical periodontitis (AP).
More participants had root filling(s) and AP in 2003 than in 1997. More teeth had AP and/or root fillings in 2003. Fewer of the root-filled teeth (RFT) had AP in 2003. Less than 3% of the teeth without root fillings (NRFT) that in 1997 had no AP, developed AP and/or received a root filling. Of the NRFT which in 1997 had AP, more than 35% still had AP and no root filling in 2003. Approximately, 30% of the NRFT with AP in 1997 received a root filling. Of the teeth that received a root filling, 40% had healed, whereas 60% had not. Approximately, 25% of the NRFT that in 1997 had AP had been extracted. In 1997 there were 618 RFT, 314 of the RFT had no AP in 1997. Almost 20% of the RFT that in 1997 were periapically sound, developed AP. Of the 304 RFT with AP in 1997, approximately 30% had healed, in 60% AP persisted, and 10% were extracted.
The present study indicates that caution must be exercised when statements on the outcome of root canal treatment are made based on the cross-sectional studies.
描述并讨论丹麦普通人群根尖周和牙髓状态的变化。
1997年，随机选取616名个体进行全口放射学检查。2003年，77%的参与者再次接受全口放射学检查。获取牙髓治疗和根尖周状态的信息。采用根尖周指数（PAI）评估根尖周炎（AP）。
与1997年相比，2003年有更多参与者进行了根管充填且患有根尖周炎。2003年有更多牙齿患有根尖周炎和/或进行了根管充填。2003年，进行根管充填的牙齿（RFT）中患有根尖周炎的比例降低。1997年无根尖周炎的未充填根管牙齿（NRFT）中，不到3%在2003年出现了根尖周炎和/或接受了根管充填。1997年患有根尖周炎的NRFT中，超过35%在2003年仍患有根尖周炎且未进行根管充填。1997年患有根尖周炎的NRFT中，约30%接受了根管充填。在接受根管充填的牙齿中，40%已经愈合，而60%尚未愈合。1997年患有根尖周炎的NRFT中，约25%已被拔除。1997年有618颗RFT，其中314颗在1997年无根尖周炎。1997年根尖周健康的RFT中，近20%出现了根尖周炎。1997年患有根尖周炎的304颗RFT中，约30%已经愈合，60%根尖周炎仍存在，10%已被拔除。
本研究表明，基于横断面研究对根管治疗结果进行陈述时必须谨慎。
