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Updated: May 14, 2026

Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
[Removable appliance and closed of central incisors: report of 48 cases]
Lin-qin Shao1, Li-xia Zhang, Ruo-zhen Gong
1Department of Pediatric Dentistry, Jinan Hospital of Stomatology, Jinan 250001, China. slq4808@163.com
Purpose:
To evaluate the treatment effect of orthodontic traction on embedded and inverted maxillary bending central incisors.
Methods:
Fifty-two embedded and inverted maxillary central incisors without-eruption ability in 48 cases were treated by combined orthodontic traction with surgical treatment after spiral CT positioning and expanding the space, the eruption situation, gingival-breaking time and teeth pulp vitality after treatment were recorded, and the treatment effect was evaluated.
Results:
Forty-eight cases with 52 impacted upper central incisors were treated with surgical and closed orthodontic traction, successful results were achieved in 36 cases, accounting for 69.23%; 15 cases had improvement, accounting for 28.85%; 1 case failed, accounting for 1.9%. Pulp vitality tests were all normal and there was no root absorption and ankylosis.
Conclusions:
Selecting appropriate cases, precise positioning with spiral CT, proper space expanding and rational application of removable traction appliance are the keys to successful treatment of impacted and inverted maxillary bending central incisors of children in mixed dentition.