CASTABLE GLASS CERAMIC CROWNS AND THEIR REACTION TO ENDODONTIC THERAPY

被引：11

作者：

COHEN, BD ^{[1
]}

WALLACE, JA ^{[1
]}

机构：

[1] CASE WESTERN RESERVE UNIV,SCH DENT,CLEVELAND,OH 44106

来源：

ORAL SURGERY ORAL MEDICINE ORAL PATHOLOGY ORAL RADIOLOGY AND ENDODONTICS | 1991年 / 72卷 / 01期

关键词：

D O I：

10.1016/0030-4220(91)90200-V

中图分类号：

R78 [口腔科学];

学科分类号：

1003 ;

摘要：

The purpose of this investigation was to determine how castable glass (Dicor) crowns would react to both cold testing and endodontic access intervention. Full crown preparations were made on six extracted maxillary teeth. The teeth were then forwarded to Dentsply International, York, Pa. Six castable glass crowns were fabricated to fit these teeth and returned to us. Subsequently the teeth were dried and the crowns were cemented. Scanning electron micrographs of the cemented crowns were made, and endodontic access openings were drilled. The teeth were also cold tested with standard methods. The teeth were then again subjected to scanning electron microscopy to determine any changes the crowns might have undergone. One crown cracked around the gingival collar as scanning electron microscopy was performed. The other crowns did not exhibit any problems such as cracking or crazing from either the access openings or the cold testing.

引用

页码：108 / 110

页数：3