Maxillar and Mandibular Growth Study during the Acceleration Phase of the Pubertal Growth Spurt

Thaís Hamui Cunha PRATA, Edmundo MEDICI FILHO, Luiz Cesar de MORAES, Mari Eli Leonelli de MORAES

Individual knowledge of facial growth and development during pubertal growth spurt (PGS) is important as an adjunct for orthodontic diagnosis and treatment planning. In this study, we proposed to compare the maxillary and mandibular growth between the initial and peak phases of the PGS, also verifying if growth differences between males and females exists. We used 93 hand-wrist radiographs and 186 lateral cephalometric radiographs from the patients’ file of the Orthodontics Discipline of the School of Dentistry in São José dos Campos – UNESP, from seven years and two months to 13 years and five months old. The hand-wrist radiographs with their lateral cephalometric radiographs from the same patient according to gender (male and female) and to period in which they were in the pubertal growth curve, in groups I and II, corresponding to the beginning and peak of the PGS, respectively. Using the t (Student) statistical test, it was concluded that there was no significant statistical difference for the increments of each linear cephalometric measurements studied between the groups I (beginning of the PGS) and II (peak of the PGS), either for boys or girls, suggesting a linear maxillo-mandibular growth during the acceleration phase of the PGS.

Keywords: Growth. Hand-wrist radiography. Lateral cephalometric radiography. Mandibular growth. Maxillary growth. Pubertal growth Spurt.

Friday, May 03, 2024 20:53