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J Periodontal Res:牙周组织形态的光学相干断层扫描观察与测定

2018-03-31 MedSci MedSci原创

诊断是牙周治疗中的关键步骤。本研究的目的是评估光学相干断层扫描(OCT)在体内观察和测定牙周组织形态的有效性。

诊断是牙周治疗中的关键步骤。本研究的目的是评估光学相干断层扫描(OCT)在体内观察和测定牙周组织形态的有效性。

在实验1中,测定1330nm处纯水,猪牙龈和人牙龈的折射率以分析牙周组织的OCT图像。在实验2中,在30名健康牙龈的亚洲志愿者的下颌前牙区的唇侧冠状面进行了OCT检查。在探查过程中拍摄的口内照片测量了龈沟深度。在OCT图像中,测量牙龈,上皮和结缔组织厚度,牙槽骨嵴的位置,以及生物学宽度。

结果:纯水,猪牙龈和人牙龈的折射率分别为1.335,1.393和1.397。实时描绘了牙龈上皮,结缔组织和牙槽骨的横截面图像。偶尔可见到龈沟和交界上皮。激光穿透和反射被限制在一定的深度,其最大成像深度能力为1.5mm,并且在某些情况下OCT图像的牙周结构不明确。下颌前牙处平均最大厚度分别为1.06±0.21,0.49±0.15和2.09±0.60 mm。

结论:有望使用OCT对牙周组织形态进行详细的无创观察并测量牙周结构,包括前牙区的生物学宽度。

原始出处:

S. Kakizaki, et al. Observation and determination of periodontal tissue profile using optical coherence tomography. Journal of Clinical Periodontology. 2018 April. doi:10.1111/jre.12506

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