化永久牙中过渡性顶部破裂 (TAB) 的放射性特征和时间模式:一项追溯观察性研究
Isabela Fernandes Dos Santos1, Luíza Rothier Coutinho da Silveira1, Rayner Afonso Santos2
1Restorative Dentistry Department, School of Dentistry, Federal University of Minas Gerais, R. Prof. Moacir Gomes de Freitas, 688, Pampulha, Belo Horizonte, MG, 31270-901, Brazil.
Clinical oral investigations
|November 28, 2024
概括
在长牙脱落的永久牙中,暂时的顶部破裂 (TAB) 通常在四个月内发生,并在一年内消失. 最常见的模式涉及牙周带扩张,角孔扩张和根吸收.
科学领域:
- 牙科 牙科是指牙科的专业.
- 在口腔外科手术.
- 放射学 放射学是一门学科.
背景情况:
- 创伤性牙损伤 (TDI) 可以导致过渡性顶损伤 (TAB) 等并发症.
- 了解TAB的放射性和临床特征对于管理长牙的管理至关重要.
研究的目的:
- 为了表征化永久牙中创伤后TAB的放射特征,临床迹象,症状和时间模式.
- 提供有关TAB的诊断标准和预后的见解.
主要方法:
- 从1993年至2024年期间接受治疗的56名患者的89颗化永久牙的回顾性分析.
- 评估人口统计,临床和放射数据,包括TAB发病和解决的时间.
- 卡普兰-梅尔曲线和考克斯回归被用来分析时间模式和影响因素.
主要成果:
- 在成熟的,化的永久牙中观察到TAB,主要是中央切口,挤出和侧面是常见的损伤类型.
- 最常见的TAB模式涉及牙周带扩张,V形顶峰孔隙扩大和外部顶峰根吸收.
- 平均TAB发病时间为3.2个月,发病速度更快的模式是2. 平均分辨时间为9.1个月,模式2的时间也更快.
- 脉敏感性在TAB发病时降低,但通过分辨率得到改善,尽管颜色变化很少发生.
结论:
- 脱落永久牙中的TAB通常在创伤后四个月内被诊断出来,通常在一年内消失.
- 主要的放射性发现是牙周带扩张与V形顶部扩张和外部顶部根吸收.
- 这些发现有助于在临床决策中管理脱落的永久牙及其后果.
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