Objectives: The effect of ceramics construction (press- able, machinable) and corrosion on flexural strength and micro-hardness was studied. Materials & Methods: Two types of ceramics were tested: IPS e-max Press ...Objectives: The effect of ceramics construction (press- able, machinable) and corrosion on flexural strength and micro-hardness was studied. Materials & Methods: Two types of ceramics were tested: IPS e-max Press and IPS e-max CAD. Forty samples were constructed and divided into 2 groups according to the type of ceramics. Each group was then subdivided into 2 subgroups. Subgroups 1 were not subjected to corrosion while subgroups 2 were subjected to corro-sion test. Finally each subgroup was divided into 2 classes according to the type of test: biaxial flexural strength, micro-hardness. Results: There was a sig-nificant difference between the two tested ceramics as regard weight loss as IPS e-max CAD recorded less weight loss than IPS e-max Press. As regard the flex-ural strength, IPS e-max CAD recorded significant higher strength than IPS e-max Press. Corroded sam- ples recorded significant lower flexural strength than non-corroded samples for the two tested ceramics. As regard the Vickers micro-hardness test, the results showed significant difference between the two tested ceramics. IPS e-max CAD recorded higher mi-cro-hardness values than IPS e-max Press. The results also showed that the corroded samples recorded no significant micro-hardness values than non- corroded samples for the two tested ceramics. Conclusions: IPS e-max CAD recorded less weight loss weight loss after being subjected to corrosion test than IPS e-max Press. The method of fabrication affected the flexural strength µ-hardness of ceramic as machinable ceramic (e-max CAD) recorded significant higher data than pressable ceramic (e-mas Press). Corrosion decreased the flexural strength of both tested ceramics but had no effect on micro- hardness.展开更多
目的：对IPS e． max CAD 全瓷冠近期修复效果进行观察和评价。方法共选取469例542颗前、后牙IPS e． max CAD 全瓷冠修复体，修复3-12个月后，按照美国加州牙科协会（CDA）制定的全瓷修复临床评定标准进行修复体评估。结果97．2％的修...目的：对IPS e． max CAD 全瓷冠近期修复效果进行观察和评价。方法共选取469例542颗前、后牙IPS e． max CAD 全瓷冠修复体，修复3-12个月后，按照美国加州牙科协会（CDA）制定的全瓷修复临床评定标准进行修复体评估。结果97．2％的修复体保持完整，未出现破裂、崩瓷、脱落、基牙冠折等并发症，患者满意度较高。结论 IPS e． max CAD 全瓷修复体的近期修复效果良好。展开更多
目的探讨IPS e. max Press热压铸陶瓷的临床修复效果。方法采用IPS e. max Press热压铸陶瓷技术制作70例163件全瓷修复体,并进行一年多的随访。结果制作的163件全瓷修复体色泽自然,边缘密合,牙龈组织健康。随访一年多成功159件,失败4件...目的探讨IPS e. max Press热压铸陶瓷的临床修复效果。方法采用IPS e. max Press热压铸陶瓷技术制作70例163件全瓷修复体,并进行一年多的随访。结果制作的163件全瓷修复体色泽自然,边缘密合,牙龈组织健康。随访一年多成功159件,失败4件,成功率为97.6%,其中1件为崩瓷,3件为粘接脱落。结论IPS e. max Press热压铸陶瓷具有良好的临床修复效果。展开更多
文摘Objectives: The effect of ceramics construction (press- able, machinable) and corrosion on flexural strength and micro-hardness was studied. Materials & Methods: Two types of ceramics were tested: IPS e-max Press and IPS e-max CAD. Forty samples were constructed and divided into 2 groups according to the type of ceramics. Each group was then subdivided into 2 subgroups. Subgroups 1 were not subjected to corrosion while subgroups 2 were subjected to corro-sion test. Finally each subgroup was divided into 2 classes according to the type of test: biaxial flexural strength, micro-hardness. Results: There was a sig-nificant difference between the two tested ceramics as regard weight loss as IPS e-max CAD recorded less weight loss than IPS e-max Press. As regard the flex-ural strength, IPS e-max CAD recorded significant higher strength than IPS e-max Press. Corroded sam- ples recorded significant lower flexural strength than non-corroded samples for the two tested ceramics. As regard the Vickers micro-hardness test, the results showed significant difference between the two tested ceramics. IPS e-max CAD recorded higher mi-cro-hardness values than IPS e-max Press. The results also showed that the corroded samples recorded no significant micro-hardness values than non- corroded samples for the two tested ceramics. Conclusions: IPS e-max CAD recorded less weight loss weight loss after being subjected to corrosion test than IPS e-max Press. The method of fabrication affected the flexural strength µ-hardness of ceramic as machinable ceramic (e-max CAD) recorded significant higher data than pressable ceramic (e-mas Press). Corrosion decreased the flexural strength of both tested ceramics but had no effect on micro- hardness.
文摘目的：对IPS e． max CAD 全瓷冠近期修复效果进行观察和评价。方法共选取469例542颗前、后牙IPS e． max CAD 全瓷冠修复体，修复3-12个月后，按照美国加州牙科协会（CDA）制定的全瓷修复临床评定标准进行修复体评估。结果97．2％的修复体保持完整，未出现破裂、崩瓷、脱落、基牙冠折等并发症，患者满意度较高。结论 IPS e． max CAD 全瓷修复体的近期修复效果良好。
文摘目的探讨IPS e. max Press热压铸陶瓷的临床修复效果。方法采用IPS e. max Press热压铸陶瓷技术制作70例163件全瓷修复体,并进行一年多的随访。结果制作的163件全瓷修复体色泽自然,边缘密合,牙龈组织健康。随访一年多成功159件,失败4件,成功率为97.6%,其中1件为崩瓷,3件为粘接脱落。结论IPS e. max Press热压铸陶瓷具有良好的临床修复效果。
