CBCT study of mesiodens with idiopathic resorption
10.3969/j.issn.1001-3733.2025.03.016
- VernacularTitle:上颌正中多生牙特发性牙吸收的CBCT研究
- Author:
Chunmiao ZHANG
1
;
Zelin YE
1
;
Meng YOU
1
Author Information
1. 610041 成都,口腔疾病研究国家重点实验室,国家口腔疾病临床医学研究中心,四川大学华西口腔医院医学影像科
- Publication Type:Journal Article
- Keywords:
Mesiodens;
Idiopathic resorption;
Intracoronal resorption;
CBCT
- From:
Journal of Practical Stomatology
2025;41(3):402-406
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To analyze the epidemiological and radiological features of idiopathic resorption of mesiodens using clinical data and CBCT images.Methods:The gender,age,and CBCT images of the patients with mesioden were collected.The number,position,occurrence and resorption type were analyzed.Results:Idiopathic resorption was present in 89 of 617 mesiodens(509 ca-ses)with a frequency of 14.4％.There was no significant difference between male(342 cases)and female(167 cases)groups(P＞0.05).The resoption incidence of mesiodens was significant different among age groups(P＜0.05).The group with age under 10 years showed the lowest resorption rate(0.6％),while the group with age between 41-50 years showed the highest rate(71.4％).In the 3D direction,resorption occurrence of mesiodens located in different coronal and sagittal plane was significant different(P＜0.05).In the coronal plane,type A2(19.4％)and type C(18.7％)resorption were the highest.In the sagittal plane,type Ⅴ(34.8％)and type Ⅳ(29.9％)resorption were the highest.Intracoronal resorption was the most frequent type(56.2％),followed by crown-root resorption(24.7％),external root resorption(10.1％),mixed internal and external resorption(4.5％),extracoronal resorption(3.4％)and internal root resorption(1.1％).Conclusion:The occurrence of idiopathic resorption of mesiodens is correlated with the age of the patients and the position of the mesiodens in the coronal and sagittal planes.The resorption occurres mostly in the crown.
