University of Marília, Marília, São Paulo, Brazil.
Am J Orthod Dentofacial Orthop. 2012 Nov;142(5):615-24. doi: 10.1016/j.ajodo.2012.05.015.
The purpose of this research was to study the influence of soft laser treatment on the process of bone repair after expansion of the midpalatal suture.
The sample for this case-control experimental study was 11 dogs. They were randomly divided into 2 groups, both of which underwent rapid maxillary expansion with a hyrax appliance. The animals in group 1 were also treated with laser therapy. They were killed, and histologic specimens of the palatal suture were prepared. The Student t test was applied for independent data, and the Mann-Whitney test was used for nonparametric data.
A significant difference was observed in the quality of the palatal sutures between the animals in groups 1 and 2. The connective tissues of the sutures in the group 1 animals were similar to the original configurations, with more advanced osteogenesis and fibrogenesis, compared with those of group 2.
Soft laser appears to influence the behavior of the repair process, contributing to suture reorganization and palatal bone osteogenesis during and after expansion.
本研究旨在探讨软组织激光治疗对快速扩弓后骨修复过程的影响。
本病例对照实验研究的样本为 11 只狗。它们被随机分为 2 组，均采用 Hyrax 矫治器行快速上颌扩张。第 1 组动物还接受了激光治疗。处死动物后，制备腭缝组织学标本。采用独立样本 t 检验进行正态分布数据的比较，采用 Mann-Whitney 检验进行非参数数据的比较。
第 1 组和第 2 组动物的腭缝质量存在显著差异。第 1 组动物的结缔组织与原始结构相似，具有更先进的成骨和纤维生成，与第 2 组相比。
软组织激光似乎影响修复过程的行为，有助于在扩弓过程中和扩弓后对腭缝进行重新组织和腭骨成骨。
