Abstract：
BACKGROUND: Amelogenesis Imperfecta (AI) is a disorder of tooth development characterized by abnormal enamel formation. In order to detect other dental and jawbone abnormalities that could be associated with AI, a retrospective and analytic study was conducted comparing panoramic radiographs of AI and non-AI patients.
METHODS: Digital panoramic radiographs of 60 AI and 60 non-AI patients were examined. Abnormalities in dental number, size, shape, eruption, and in the shape of the dental arches were checked and blindly recorded by two experimented observers. Descriptive statistics using percentages and chi-square test with .05 level of significance value was used.
RESULTS: Prevalence of supernumerary teeth, dental agenesis, microdontia, taurodontism, radicular dilacerations, dental inclusions, temporary teeth persistence, and pulp calcifications was significantly higher in AI patients compared to control patients. Prevalence of periapical images, cysts, and hypercementosis was lower in AI patients compared to control patients, with no statistically significant difference. A significant prevalence of mandibular hypoplasia was also noted in AI patients.
CONCLUSIONS: In addition to enamel defect, panoramic radiography was useful in detecting other dental abnormalities and mandibular hypoplasia associated with AI and should therefore be systematically indicated for AI patients\' care.
METHODS: Digital panoramic radiographs of 60 AI and 60 non-AI patients were examined. Abnormalities in dental number, size, shape, eruption, and in the shape of the dental arches were checked and blindly recorded by two experimented observers. Descriptive statistics using percentages and chi-square test with .05 level of significance value was used.
RESULTS: Prevalence of supernumerary teeth, dental agenesis, microdontia, taurodontism, radicular dilacerations, dental inclusions, temporary teeth persistence, and pulp calcifications was significantly higher in AI patients compared to control patients. Prevalence of periapical images, cysts, and hypercementosis was lower in AI patients compared to control patients, with no statistically significant difference. A significant prevalence of mandibular hypoplasia was also noted in AI patients.
CONCLUSIONS: In addition to enamel defect, panoramic radiography was useful in detecting other dental abnormalities and mandibular hypoplasia associated with AI and should therefore be systematically indicated for AI patients\' care.
摘要：
背景：釉质发育不全症（AI）是一种以牙釉质形成异常为特征的牙齿发育障碍。为了检测可能与AI相关的其他牙齿和颌骨异常，我们进行了一项回顾性分析研究,比较了AI和非AI患者的全景X线照片.
方法：对60例AI和60例非AI患者进行数字化全景摄影。牙齿数量异常，尺寸,形状,喷发,并由两名实验观察者检查并盲目记录牙弓的形状。使用百分比和卡方检验的描述性统计学，显著性值水平为.05。
结果：多余牙齿的患病率，牙齿发育不全,microdontia,牛磺酸症,神经根撕裂,牙科夹杂物，暂时的牙齿持久性，AI患者的牙髓钙化明显高于对照组。根尖周图像的患病率，囊肿,与对照组患者相比，AI患者的骨水泥过多要低，差异无统计学意义。在AI患者中，下颌骨发育不全的患病率也很高。
结论：除了牙釉质缺损，全景X线摄影在检测与AI相关的其他牙齿异常和下颌骨发育不全方面很有用,因此应系统地提示AI患者的护理.
方法：对60例AI和60例非AI患者进行数字化全景摄影。牙齿数量异常，尺寸,形状,喷发,并由两名实验观察者检查并盲目记录牙弓的形状。使用百分比和卡方检验的描述性统计学，显著性值水平为.05。
结果：多余牙齿的患病率，牙齿发育不全,microdontia,牛磺酸症,神经根撕裂,牙科夹杂物，暂时的牙齿持久性，AI患者的牙髓钙化明显高于对照组。根尖周图像的患病率，囊肿,与对照组患者相比，AI患者的骨水泥过多要低，差异无统计学意义。在AI患者中，下颌骨发育不全的患病率也很高。
结论：除了牙釉质缺损，全景X线摄影在检测与AI相关的其他牙齿异常和下颌骨发育不全方面很有用,因此应系统地提示AI患者的护理.
