Alves Luana Severo, Fontanella Vania, Damo Alessandra Cristina, Ferreira de Oliveira Elenara, Maltz Marisa
Department of Social and Preventive Dentistry, Faculty of Odontology, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2010 Jan;109(1):135-41. doi: 10.1016/j.tripleo.2009.08.021.
The objective of this study was to assess radiographic outcomes after partial carious dentin removal performed in deep caries lesions over a 10-year period.
Baseline image was compared to 3 follow-up radiographs (at 6-7 months, 3 years, and 10 years). Tertiary dentin deposition and lesion depth were qualitatively assessed. Radiographic density changes in the radiolucent zone (RZ) beneath the restoration were quantitatively compared to the control areas (CA) using digital subtraction radiography (Friedman repeated-measures analysis of variance).
A total of 13 teeth were evaluated. In most cases, lesion depth remained unchanged or decreased (12/13) and tertiary dentin formation was observed (10/13) after the 10-year follow-up. Differences between RZ and CA at the 6- to 7-month and 3-year follow-up periods were similar but significantly lower than those at the 10-year assessment.
Sealing of carious dentin arrested the caries process, promoted deposition of tertiary dentin, and induced mineral gain in the radiolucent zone.
本研究的目的是评估在10年期间对深龋病变进行部分龋坏牙本质去除后的影像学结果。
将基线图像与3张随访X线片（6 - 7个月、3年和10年时）进行比较。对第三期牙本质沉积和病变深度进行定性评估。使用数字减影X线摄影术（弗里德曼重复测量方差分析），将修复体下方透射区（RZ）的影像学密度变化与对照区域（CA）进行定量比较。
共评估了13颗牙齿。在大多数情况下，10年随访后病变深度保持不变或减小（12/13），并观察到第三期牙本质形成（10/13）。6至7个月和3年随访期时RZ与CA之间的差异相似，但显著低于10年评估时的差异。
封闭龋坏牙本质可阻止龋病进程，促进第三期牙本质沉积，并在透射区诱导矿物质增加。
