牵引钩可隐藏式球形颊面管与方形颊面管的临床性能对比研究

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[中图分类号] R783.5 [文献标志码] A [doi] 10.7518/hxkq.2025.2025378

[Abstract]ObjectiveThis study comprehensively compares the diferences between concealable traction hook spherical buccal tubes （concealable spherical tubes）and conventional rectangular buccal tubes in terms ofpatientcomfort，incidenceofbuccalmucosalinjury，periodontalhalthindices，andclinicalbondfailureratetoprovideevidence for clinical application.MethodsThirtysubjects were enrolled and treated using asplit-mouth design，where the two sidesofeach patient's oral cavity were randomlyassigned to receive either conventional rectangular buccal tubes（group A） or concealable spherical buccal tubes （group B）. During treatment， pain scores，ulcer occurrence，and bond failure of the first molar buccal tubes were recorded.Periodontal indices，including plaque index（PLI），gingival index （GI），and sulcus bleeding index （SBI）of thefirst molars，were assssed before treatment （TO）and 30 days after tubebonding （T1）.ResultsThe pain scores in group A were significantly higher than those in group B（ Z=-5.231 P<0.001 ）.Moderateorhigherpain was reported by 86.7% of patients in group A，whereas 90.0% of patients in group B reported mild pain only. The incidence of ulcers in group A （76.7%） ）wassignificantly higher than that in groupB（ 3.3% Z=-4.508 P<0.001 ）.After treatment，the periodontal indices in both groups increased significantly compared to pre-treatment levels （P<0.05） however，the increases in PLI， GI，and SBI were significantly greater in group A than in group B （P<0.001） ）.Thebond failurerate in group A （26.7%） ）wassignificantlyhigherthanthat ingroupB 8.3% P<0.001 ）.ConclusionThe clinicalperformance of concealable spherical buccal tubes issignificantly superior to thatofconventionalrectangularbuccaltubesinimprovingpatientcomfort，reducingtheincidenceofmucosalinjuryandclinicalbondfailure，andmaintaining periodontal health.This designoffers patients a more comfortable and healthierorthodontic treatment experience.

[Key words]spherical buccal tube；rectangularbuccal tube;comfort;periodontal health；bond failure rate

在固定正畸治疗中，磨牙颊面管粘接技术已逐步取代传统带环，成为主流固定方式，因其更有利于维护牙周健康、避免对牙颈部及龈缘形态的破坏而广泛应用于临床。（剩余10602字）