Kreulen C M, van Amerongen W E, Borgmeijer P J, Akerboom H B, Gruythuysen R J
Department of Pediatric Dentistry, Academic Centre for Dentistry Amsterdam (ACTA), The Netherlands.
ASDC J Dent Child. 1994 May-Jun;61(3):192-8.
Radiographic evaluations of indirect Class II resin composite inlays, shortly following their placement are presented. One hundred and eighty restorations of 'standard' conservative size were recorded using a beam-aiming device. Four radiographic characteristics were assessed of which the most important were: cervical marginal adaptation, voids in the material, and radiolucencies adjacent to the restoration. In comparison with amalgam restorations influencing factors are studied, and differences with direct resin composite restorations of a previous study are discussed. The inlays showed more deficiencies in cervical marginal adaptation than the amalgams (74 percent and 32 percent, respectively). Radiolucencies adjacent to the restorations and voids in the resin material were observed. The marginal adaptation appeared to show less deficiencies with two-surface than with three-surface restorations. Regarding the resin restorative materials, the limited radiolucency of one of the luting cements is discussed with respect to marginal adaptation. Comparison with direct restorations revealed a somewhat greater number of deficiencies in the cervical margins of indirect inlays.
本文展示了间接II类树脂复合材料嵌体就位后不久的影像学评估结果。使用光束瞄准装置记录了180个“标准”保守尺寸的修复体。评估了四个影像学特征，其中最重要的是：颈部边缘适应性、材料中的空隙以及修复体周围的透射区。与银汞合金修复体相比，研究了影响因素，并讨论了与先前一项研究中的直接树脂复合材料修复体的差异。嵌体在颈部边缘适应性方面的缺陷比银汞合金修复体更多（分别为74%和32%）。观察到修复体周围的透射区和树脂材料中的空隙。与三面修复体相比，双面修复体的边缘适应性缺陷似乎更少。关于树脂修复材料，讨论了一种粘结剂有限的透射率对边缘适应性的影响。与直接修复体相比，间接嵌体的颈部边缘缺陷数量略多。
