Flexural and fatigue properties of polyester disk material for milled resin clasps

To evaluate the flexural and fatigue properties of a polyester disk material used in milled resin clasps of removable partial dentures, experimental polyester disk (mPE), injection-molded polyester (iPE), and polymethyl methacrylate disk (mPMMA) were examined by three-point bending tests and cyclic...

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Veröffentlicht in:	Dental Materials Journal 2021/11/25, Vol.40(6), pp.1359-1364
Hauptverfasser:	HAO, Jialin, MURAKAMI, Natsuko, YAMAZAKI, Toshiki, IWASAKI, Naohiko, YATABE, Masaru, TAKAHASHI, Hidekazu, WAKABAYASHI, Noriyuki
Format:	Artikel
Sprache:	eng
Schlagworte:	Bending fatigue Deflection Dental materials Dentures Fasteners Fatigue resistance Fatigue tests Flexural strength Heat treating Injection molding Materials fatigue Microcracks Modulus of rupture in bending Polyester resins Polyesters Polymethyl methacrylate Polymethylmethacrylate Prostheses Removable partial denture Residual strain Resin clasp Thermoplastic resin
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Zusammenfassung:	To evaluate the flexural and fatigue properties of a polyester disk material used in milled resin clasps of removable partial dentures, experimental polyester disk (mPE), injection-molded polyester (iPE), and polymethyl methacrylate disk (mPMMA) were examined by three-point bending tests and cyclic fatigue tests at 0.75 or 1.50 mm deflection. The mPE exhibited significantly higher flexural strength than the iPE (p
ISSN:	0287-4547 1881-1361
DOI:	10.4012/dmj.2021-037