Park Min Kyoung, Shin Min Kyung, Kim Seong Oh, Lee Hyo Seol, Lee Jae-Ho, Jung Han-Sung, Song Je Seon
Department of Pediatric Dentistry, College of Dentistry, Yonsei University, Seoul, Republic of Korea.
Department of Pediatric Dentistry, College of Dentistry, Kyunghee University, Seoul, Republic of Korea.
Arch Oral Biol. 2017 Jan;73:243-247. doi: 10.1016/j.archoralbio.2016.10.024. Epub 2016 Oct 24.
OBJECTIVE: The aim of this study was to investigate the epidemiology of delayed tooth development (DTD) and the link between DTD and tooth agenesis (TA). DESIGN: The dental maturity of all of the developing permanent teeth of 4611 children (2417 males and 2194 females) was evaluated from panoramic radiographs. The prevalence of DTD and TA was analyzed, and gender difference for DTS and TA was investigated. The correlation of DTD and TA was investigated in intra-fields and inter-fields. RESULTS: The total prevalence of DTD among the 4611 children was 3.40%. The maxillary second premolar was the most frequently delayed tooth (1.02%), followed by the maxillary second molar (0.88%) and the mandibular second premolar (0.74%). DTD significantly correlated with TA in both intra-fields and inter-fields (p<0.05). CONCLUSIONS: The field of delayed development exhibited a significant correlation with that of TA.
目的：本研究旨在调查牙齿发育迟缓（DTD）的流行病学情况以及DTD与牙齿缺失（TA）之间的联系。 设计：通过全景X线片评估4611名儿童（2417名男性和2194名女性）所有正在发育的恒牙的牙齿成熟度。分析DTD和TA的患病率，并调查DTD和TA的性别差异。在牙弓内和牙弓间研究DTD与TA的相关性。 结果：4611名儿童中DTD的总患病率为3.40%。上颌第二前磨牙是最常出现发育迟缓的牙齿（1.02%），其次是上颌第二磨牙（0.88%）和下颌第二前磨牙（0.74%）。在牙弓内和牙弓间，DTD与TA均显著相关（p<0.05）。 结论：发育迟缓领域与TA领域表现出显著相关性。
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