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本研究的目的是明确在没有正畸力的条件下固定矫治器是否影响牙周健康。采用“滤纸条”法 ,观察 16例错患者在除外正畸力的前提下 ,固定矫治器放置前后龈沟液 (gingival crevicular fluid,GCF)量、GCF中天冬氨酸转氨酶 (aspartate aminortransferase,AST)、碱性磷酸酶 (alkaine phosphatate,ALP)水平的变化。结果显示固定矫治器的放置可引起 GCF量的显著性增加 (P<0 .0 0 1)和 GCF中 AST、ALP水平的显著性增加 (P<0 .0 0 1)。从而得出结论固定矫治器的放置可通过影响口腔卫生而对牙周健康产生不利影响 ,因此对接受正畸治疗的人群进行规范的口腔卫生宣教 ,使其有效地控制菌斑至关重要。
The purpose of this study was to determine if fixation of the appliance affects periodontal health without orthodontics. The “filter paper” method was used to observe the amount of gingival crevicular fluid (GCF) before and after fixed appliance placement, the aspartate aminortransferase , AST), alkaline phosphatase (ALP) levels. The results showed that the fixed appliance could cause a significant increase of GCF (P <0.01) and a significant increase of AST and ALP in GCF (P <0.01). This concludes that the placement of a fixed appliance can have an adverse effect on the health of the periodontal by affecting its oral hygiene, and therefore it is crucial for a population of orthodontic subjects to have a standardized oral hygiene mission to effectively control the plaque.