{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,29]],"date-time":"2026-04-29T12:13:29Z","timestamp":1777464809375,"version":"3.51.4"},"reference-count":32,"publisher":"SAGE Publications","issue":"4","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["BME"],"published-print":{"date-parts":[[2022,7,15]]},"abstract":"<jats:p>BACKGROUND: Polymerization stress is a major problem in dental resin composite restorations. Two indentation fracture methods can be applied to evaluate the stress, however, they often calculate different values. OBJECTIVE: To compare polymerization stresses of dental composites determined by the two methods. METHODS: Glass disks with a central hole were used. Two indentation fracture methods (Methods\u00a01 and\u00a02) were employed to determine the polymerization stresses of low-shrinkage and bulk-fill composites. Method\u00a01: Cracks were made in the glass surface at 300\u00a0\u03bcm from the hole. The hole was filled with the composite. Polymerization stresses at 30\u00a0min after filling were calculated from the lengths of crack extension. Method\u00a02: The hole was filled with the composite. Cracks were introduced in the glass at 1,000\u00a0\u03bcm from the hole at 30\u00a0min after the polymerization and the stresses were calculated from the crack lengths. Stresses at composite-glass bonded interface were calculated from the stress values obtained by the two methods. RESULTS: The bulk-fill composite generated the smallest interfacial stress, and Method\u00a01 revealed lower values than Method\u00a02. CONCLUSIONS: The composites yielded relatively small stresses. Method\u00a01 calculated smaller stress values, possibly affected by the lower threshold stress intensity factor.<\/jats:p>","DOI":"10.3233\/bme-211307","type":"journal-article","created":{"date-parts":[[2021,11,5]],"date-time":"2021-11-05T14:47:43Z","timestamp":1636123663000},"page":"259-268","source":"Crossref","is-referenced-by-count":0,"title":["Comparison of polymerization stresses of dental resin composites evaluated by two indentation fracture methods"],"prefix":"10.1177","volume":"33","author":[{"given":"Masao","family":"Hanabusa","sequence":"first","affiliation":[{"name":", , , , , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Saori","family":"Kimura","sequence":"additional","affiliation":[{"name":", , , , , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Nana","family":"Sakaeda","sequence":"additional","affiliation":[{"name":", , , , , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Kazuyoshi","family":"Okawa","sequence":"additional","affiliation":[{"name":", , , , , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wataru","family":"Saito","sequence":"additional","affiliation":[{"name":", , , , , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Takatsugu","family":"Yamamoto","sequence":"additional","affiliation":[{"name":", , , , , Japan"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"179","reference":[{"issue":"1","key":"10.3233\/BME-211307_ref1","doi-asserted-by":"publisher","first-page":"1","DOI":"10.1016\/j.dental.2015.06.020","article-title":"Polymerization stress \u2013 Is it clinically meaningful?","volume":"32","author":"Ferracane","year":"2016","journal-title":"Dent Mater"},{"key":"10.3233\/BME-211307_ref2","first-page":"255","volume-title":"Materials in Dentistry Principles and Applications","author":"Ferracane","year":"2001"},{"key":"10.3233\/BME-211307_ref3","first-page":"289","volume-title":"Fundamentals of Operative Dentistry: A Contemporary Approach","author":"Hilton","year":"2006"},{"key":"10.3233\/BME-211307_ref4","first-page":"83","volume-title":"Craig\u2019s Restorative Dental Materials","author":"Braga","year":"2012"},{"issue":"3","key":"10.3233\/BME-211307_ref5","doi-asserted-by":"publisher","first-page":"328","DOI":"10.4012\/dmj.24.328","article-title":"Fracture toughness measurement of dental ceramics using the indentation fracture method with different formulas","volume":"24","author":"Maehara","year":"2005","journal-title":"Dent Mater\u00a0J"},{"issue":"11","key":"10.3233\/BME-211307_ref6","doi-asserted-by":"publisher","first-page":"12740","DOI":"10.1016\/j.ceramint.2016.05.030","article-title":"Fracture toughness of glasses and hydroxyapatite: A comparative study of\u00a07 methods by using Vickers indenter","volume":"42","author":"Hervas","year":"2016","journal-title":"Ceramics International"},{"issue":"8","key":"10.3233\/BME-211307_ref7","doi-asserted-by":"crossref","first-page":"2001","DOI":"10.1007\/BF00551043","article-title":"Residual stress effects in sharp contact cracking. 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