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Abstract：
BACKGROUND: Pulp stones are a type of pulp calcification, the presence of which tends to hinder endodontic treatment. Thus, this retrospective study aimed to analyze the distribution of pulp stones in the population in southwest China and identify the influencing factors.
METHODS: Cone-beam computed tomography (CBCT) scans of 5066 teeth of 200 patients (91 males and 109 females) aged 16-45 years were evaluated. Pulp stones were marked as either present or absent when distinct radiopaque masses were found in the pulp cavity, then evaluated the occurrence of pulp stones with regard to tooth type, sex, age group, and contact it with tooth status. The Pearson chi-square test and nonparametric test were used for statistical analysis.
RESULTS: Pulp stones were detected in 49.0% of patients and 7.4% of teeth, respectively. The incidence in females was 1.9 times higher than in males (OR = 1.9, 95% CI = 1.1-3.3, p = 0.001). Pulp stones were most prevalent in patients 36-45 years of age. Furthermore, in the age range of 16-45 years, the likelihood of finding pulp stones increased 1.1 times per year with age (OR = 1.1, 95% CI = 1.0-1.1, p = 0.032). A higher incidence of pulp stones was observed in the maxilla and molars. Of the 5066 teeth studied, pulp stones were more common in non-intact teeth.
CONCLUSIONS: Nearly half of the population in southwest China had pulp stones. Pulp stones were found significantly more often in females, maxilla, and non-intact teeth, and their frequency increased with age. For dentists, understanding the distribution of pulp stones is crucial for the proper design of root canal treatment (RCT).
BACKGROUND: This study was approved by the Ethics Committee of the Affiliated Hospital of Stomatology, Southwest Medical University (certificate number: 20220818001).
METHODS: Cone-beam computed tomography (CBCT) scans of 5066 teeth of 200 patients (91 males and 109 females) aged 16-45 years were evaluated. Pulp stones were marked as either present or absent when distinct radiopaque masses were found in the pulp cavity, then evaluated the occurrence of pulp stones with regard to tooth type, sex, age group, and contact it with tooth status. The Pearson chi-square test and nonparametric test were used for statistical analysis.
RESULTS: Pulp stones were detected in 49.0% of patients and 7.4% of teeth, respectively. The incidence in females was 1.9 times higher than in males (OR = 1.9, 95% CI = 1.1-3.3, p = 0.001). Pulp stones were most prevalent in patients 36-45 years of age. Furthermore, in the age range of 16-45 years, the likelihood of finding pulp stones increased 1.1 times per year with age (OR = 1.1, 95% CI = 1.0-1.1, p = 0.032). A higher incidence of pulp stones was observed in the maxilla and molars. Of the 5066 teeth studied, pulp stones were more common in non-intact teeth.
CONCLUSIONS: Nearly half of the population in southwest China had pulp stones. Pulp stones were found significantly more often in females, maxilla, and non-intact teeth, and their frequency increased with age. For dentists, understanding the distribution of pulp stones is crucial for the proper design of root canal treatment (RCT).
BACKGROUND: This study was approved by the Ethics Committee of the Affiliated Hospital of Stomatology, Southwest Medical University (certificate number: 20220818001).
摘要：
背景：结石是一种牙髓钙化，其存在往往会阻碍牙髓治疗。因此，这项回顾性研究旨在分析中国西南地区人群中浆石的分布情况，并找出影响因素。
方法：对200例16-45岁患者（男性91例，女性109例）的5066颗牙齿进行锥形束计算机断层扫描（CBCT）扫描。当在牙髓腔中发现明显的不透射线的团块时，牙髓结石被标记为存在或不存在。然后根据牙齿类型评估牙髓结石的发生，性别,年龄组,并与牙齿状况联系。采用Pearson卡方检验和非参数检验进行统计分析。
结果：在49.0％的患者和7.4％的牙齿中发现了牙髓结石，分别。女性的发病率是男性的1.9倍（OR=1.9，95％CI=1.1-3.3，p=0.001）。牙髓结石在36-45岁的患者中最为普遍。此外，在16-45岁的年龄范围内，发现牙髓结石的可能性随着年龄增长每年增加1.1倍(OR=1.1,95%CI=1.0-1.1,p=0.032).在上颌骨和磨牙中观察到牙髓结石的发生率较高。在研究的5066颗牙齿中，牙髓结石在非完整牙齿中更为常见。
结论：中国西南地区近一半的人口患有牙髓结石。在女性中发现纸浆结石的频率明显更高，上颌骨,和不完整的牙齿，他们的频率随着年龄的增长而增加。对于牙医来说，了解牙髓结石的分布对于正确设计根管治疗（RCT）至关重要。
背景：本研究获得口腔医学附属医院伦理委员会的批准，西南医科大学（证书编号：20220818001）。
方法：对200例16-45岁患者（男性91例，女性109例）的5066颗牙齿进行锥形束计算机断层扫描（CBCT）扫描。当在牙髓腔中发现明显的不透射线的团块时，牙髓结石被标记为存在或不存在。然后根据牙齿类型评估牙髓结石的发生，性别,年龄组,并与牙齿状况联系。采用Pearson卡方检验和非参数检验进行统计分析。
结果：在49.0％的患者和7.4％的牙齿中发现了牙髓结石，分别。女性的发病率是男性的1.9倍（OR=1.9，95％CI=1.1-3.3，p=0.001）。牙髓结石在36-45岁的患者中最为普遍。此外，在16-45岁的年龄范围内，发现牙髓结石的可能性随着年龄增长每年增加1.1倍(OR=1.1,95%CI=1.0-1.1,p=0.032).在上颌骨和磨牙中观察到牙髓结石的发生率较高。在研究的5066颗牙齿中，牙髓结石在非完整牙齿中更为常见。
结论：中国西南地区近一半的人口患有牙髓结石。在女性中发现纸浆结石的频率明显更高，上颌骨,和不完整的牙齿，他们的频率随着年龄的增长而增加。对于牙医来说，了解牙髓结石的分布对于正确设计根管治疗（RCT）至关重要。
背景：本研究获得口腔医学附属医院伦理委员会的批准，西南医科大学（证书编号：20220818001）。
