Differences of temporomandibular joint symmetry in patients with unilateral complete cleft lip and palate at different developmental stages.
10.11817/j.issn.1672-7347.2023.220270
- Author:
Wanping JIA
1
;
Zhaoxia YANG
2
;
Xinying SU
3
;
Mengying SHAO
3
;
Yonghua LEI
4
Author Information
1. Center of Stomatology, Xiangya Hospital, Central South University, Changsha 410008. jwpys123@163.com.
2. Department of Stomatology, Second People's Hospital of Hunan Province, Changsha 410007, China.
3. Center of Stomatology, Xiangya Hospital, Central South University, Changsha 410008.
4. Center of Stomatology, Xiangya Hospital, Central South University, Changsha 410008. lyh8484123@126.com.
- Publication Type:Journal Article
- Keywords:
cleft lip and palate;
different developmental stages;
symmetry;
temporomandibular joint
- MeSH:
Humans;
Cleft Lip/diagnostic imaging*;
Cleft Palate/diagnostic imaging*;
Temporomandibular Joint/diagnostic imaging*;
Clinical Relevance
- From:
Journal of Central South University(Medical Sciences)
2023;48(4):575-580
- CountryChina
- Language:English
-
Abstract:
OBJECTIVES:Currently, the research results regarding the bilateral temporomandibular joint symmetry in patients at different ages with unilateral complete cleft lip and palate (UCLP) are still controversial. In this study, the position of condyle in the articular fossa and morphology of condyle in UCLP patients at different developmental stages was measured and analyzed to explore the asymmetry difference, which can provide a new theoretical basis for the sequential therapy.
METHODS:A total of 90 patients with UCLP were divided into a mixed dentition group (31 cases), a young permanent dentition group (31 cases) and an old permanent dentition group (28 cases) according to age and dentition development. Cone beam computed tomography (CBCT) images were imported into Invivo5 software for 3D reconstruction, and the joint space, anteroposterior diameter, medio-lateral diameter, and height of condylar were measured, and its asymmetry index was calculated.
RESULTS:The asymmetry index of condylar height and anteroposterior diameter among the 3 groups, from small to large, was the mixed dentition groupP<0.05). There was no significant difference in condylar anteroposterior diameter and asymmetry index between the mixed dentition group and the young permanent dentition group (both P>0.05), all of them were lower than those in the old permanent dentition group (both P<0.05). Compared with the normal side, the height of fracture condyle was smaller among the 3 groups (all P<0.05), and the anterior joint space was smaller (P<0.05) and the posterior joint space was larger (P<0.05) in the mixed dentition group.
CONCLUSIONS:In patients with UCLP, the asymmetry of condylar morphology increases with age, but the condylar position tends to normal. These results suggest that early treatment has important clinical significance for the morphologic development of temporomandibular joint in UCLP patients.
