[对大牙的力分布的三维分析,同时与清晰的对齐器同时使第一和第二牙脱稳]
X H He1, Z X Yang1, X Y Zhang1
1Department of Orthodontics, School of Stomatology, The Fourth Military Medical University, State Key Laboratory of Oral & Maxillofacial Reconstruction and Regeneration, National Clinical Research Center for Oral Diseases, Shaanxi Clinical Research Center for Oral Diseases, Xi'an 710032, China.
概括
建议每个步骤大小为0.20毫米,以实现清晰的对齐器摩尔脱稳,以优化力分布. 这种方法有助于防止不必要的牙移动,并确保使用透明对齐器的有效治疗.
科学领域:
- 矯正牙科 矯正牙科是一種矯正牙科.
- 生物材料科学 生物材料科学
- 生物力学 生物力学
背景情况:
- 透明对齐器越来越多地用于正义牙科治疗,包括骨脱.
- 在清晰对齐器治疗期间优化力分布对于可预测的治疗结果至关重要.
- 了解步骤大小和力分布之间的关系对于设计有效的清晰对齐器至关重要.
研究的目的:
- 通过使用具有不同步骤大小的清晰对齐器,研究同时使用第一和第二关节脱稳过程中对关节牙的力分布.
- 为了提供一个理论基础,以合理设计的清晰对齐器,以使摩尔脱稳.
主要方法:
- 三组透明对齐器 (0.15毫米,0.20毫米,0.25毫米的步骤大小) 使用0.76毫米的PET-G板进行制造.
- 在前和第二上放置了附着物,以便同时对第一和第二进行双边脱.
- 一个3D力测量系统量化了对目标牙和定牙的力.
主要成果:
- 步尺大小显著影响了对狗,前和的力量 (P<0.05).
- 对第二牙和第一牙的间距力随着更大的步骤大小 (0.20毫米和0.25毫米) 增加.
- 步骤大小为0.20毫米,证明了最佳的力分布,并提出了预防嘴部倾斜的建议.
结论:
- 建议使用0.76毫米的PET-G制造0.20毫米的步骤大小,用于制造用于0.76毫米PET-G的同时摩尔脱稳的透明对齐器.
- 设计牙的语言移位和邻近的牙的口腔移位可以抵消不利的力量.
- 建议将附件战略地放置在主要定牙上,以实现有效的干脱稳.
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