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Updated: Jun 27, 2026
Measuring Maxillary Posterior Tooth Movement: A Model Assessment using Palatal and Dental Superimposition
Published on: February 23, 2024
[Effect of palatoplasty timing on the dental arch relationships between upper and lower jaws]
Zhao-wei Peng1, Lian Ma, Qi-lin Jia
1Treatment Center for Cleft Lip and Palate, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Objective:
To investigate the effect of different palatoplasty timing on the dental arch relationship between upper and lower jaws by a retrospective study.
Methods:
A total of 103 UCLP consecutive cases over 10 years of age were followed up after operation, which were divided into three groups according to the age of operation, group A: < or = 3.0-years-old, group B: < or = 6.0-years-old and group C: > 6.0-years-old above. Maxilla and mandible plaster casts were taken for each patient. Goslon Yardstick system was used for assessing the dental arch relationships between upper and lower jaws.
Results:
Goslon Yardstick assessing results showed that there was no significant difference between group A and group B (P>0.05), there was significant difference between group C and group A (P<0.05), and C was no significant difference between group B and group C (P=0.095).
Conclusions:
Six-years-old was a boundary line on considering the influence of cleft palate operation age on the maxillary development. The Yardstick mean value became smaller along with increase of operation age.
