Abstract:
:A new method of all-ceramic production using alumina coping has been developed. The present study investigates the influence of secondary firing (glass infiltration firing) conditions. Samples of porcelain build-up without secondary firing were also assessed. The suitability of coping that included secondary firing was found to be affected by the rate of temperature increase during the secondary firing. However, cracking developed in the fired porcelain if porcelain was built up onto secondarily-fired coping. In contrast, cracking did not occur with coping that was not secondarily fired. The bending strength after porcelain build-up was 70 MPa or higher, suggesting the possibility of clinical applications as an anterior crown. These findings establish that this is method of producing all-ceramic crowns that allows for low-cost manufacture in a short period of about 1 h.
journal_name
Dent Mater Jjournal_title
Dental materials journalauthors
Masuda T,Kakimoto K,Takahashi K,Komasa Ydoi
10.4012/dmj.2015-275subject
Has Abstractpub_date
2016-01-01 00:00:00pages
290-7issue
2eissn
0287-4547issn
1881-1361journal_volume
35pub_type
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