Retention force of removable partial dentures with different double crowns
| Autor: | Jürgen M. Setz, Ramona Schweyen, Jeremias Hey, Christin Arnold, Arne F. Boeckler |
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| Rok vydání: | 2017 |
| Předmět: |
Dental Stress Analysis
Materials science medicine.medical_treatment Dentistry In Vitro Techniques Dental Materials 03 medical and health sciences 0302 clinical medicine stomatognathic system medicine Conical crowns Humans Additional retention General Dentistry Crowns business.industry 030206 dentistry Denture Retention Artificial aging Models Dental Dental Prosthesis Design Computer-Aided Design Denture Partial Removable Dentures business 030217 neurology & neurosurgery |
| Zdroj: | Clinical Oral Investigations. 22:1641-1649 |
| ISSN: | 1436-3771 1432-6981 |
| DOI: | 10.1007/s00784-017-2224-x |
| Popis: | The aim of the study was to compare the retentive behaviors of double crowns with different designs and material compositions before and after artificial aging. Six pairs of double crowns were fabricated: telescopic crowns 0° made of high-noble metal (group A) or non-precious metal (group B), telescopic zirconia copings with secondary crowns made of electroplated gold 2° (group C), crowns with friction pins 2° made of non-precious metal (group D) or zirconia (group E), and conical crowns 6° made of high-noble metal (group F). Retention forces were assessed before and after artificial aging, and after axial and non-axial loading. Initially, specimens in group D (13.9 N), B (12.5 N), and E (12.2 N) exhibited the highest retention forces. Retention forces in groups A (9.6 N), C (7.4 N), and F (6.0 N) were statistically significantly lower than those of the other groups (p |
| Databáze: | OpenAIRE |
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