Maltz M, Oliveira E F, Fontanella V, Carminatti G
Department of Social and Preventive Dentistry, Federal University of Rio Grande do Sul, Porto Alegre, Brazil.
Caries Res. 2007;41(6):493-6. doi: 10.1159/000109349. Epub 2007 Oct 5.
Radiographic changes after indirect pulp capping (32 teeth in 27 patients) were studied for up to 36-45 months. Radiolucent zone (RZ) depth and tertiary dentine formation were assessed qualitatively and changes in radiographic density (by image subtraction) in RZ and control areas (CA) were estimated. During follow-up there were 1 pulp necrosis, 1 pulp exposure, 3 fractures and 3 withdrawals. Twelve cases showed decreased RZ depth and 4 displayed tertiary dentine. No changes with time in density of CA or RZ, or in the difference between them, were observed. It is concluded that indirect pulp capping arrests lesion progression, suggesting that complete dentine caries removal is not essential for caries control.
对间接盖髓术治疗后的影像学变化（27例患者的32颗牙齿）进行了长达36至45个月的研究。对透射区（RZ）深度和第三期牙本质形成进行了定性评估，并通过图像减法估算了RZ和对照区域（CA）的影像学密度变化。随访期间出现1例牙髓坏死、1例牙髓暴露、3例骨折和3例失访。12例显示RZ深度减小，4例出现第三期牙本质。未观察到CA或RZ密度及其差值随时间的变化。结论是间接盖髓术可阻止病变进展，这表明完全去除牙本质龋对龋病控制并非必不可少。
