Literature DB >> 1058875

Composition and mechanical properties of gutta-percha endodontic points.

C M Friedman, J L Sandrik, M A Heuer, G W Rapp.   

Abstract

Gutta-percha endodontic filling points were found to contain approximately 20% gutta-percha (matrix), 66% zinc oxide (filler), 11% heavy metal sulfates (radiopacifier), and 3% waxes and/or resins (plasticizer). The mechanical properties were indicative of a partially crystalline viscoelastic polymeric material. They were found to obey Hooke's law and displayed a prominent upper and lower yield point when stressed beyond the proportional limit. The essential differences in mechanical properties of individual brands were found to be a function of the gutta-percha and zinc oxide concentration.

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Year:  1975        PMID： 1058875     DOI： 10.1177/00220345750540052901

Source DB:  PubMed          Journal:  J Dent Res        ISSN： 0022-0345            Impact factor:   6.116


  15 in total

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2.  Thermal analysis and stability of commercially available endodontic obturation materials.

Authors:  H W Roberts; T C Kirkpatrick; B E Bergeron
Journal:  Clin Oral Investig       Date:  2017-02-10       Impact factor: 3.573

3.  Effect of fiber post length and abutment height on fracture resistance of endodontically treated premolars prepared for zirconia crowns.

Authors:  Jie Lin; Jukka Pekka Matinlinna; Akikazu Shinya; Michael George Botelho; Zhiqiang Zheng
Journal:  Odontology       Date:  2017-12-14       Impact factor: 2.634

4.  Dental technology of Taiwan during the Japanese colonial period.

Authors:  Feng-Chou Cheng; Ling-Hsia Wang; Natsuyo Ozawa; Chen-Ying Wang; Julia Yu-Fong Chang; Chun-Pin Chiang
Journal:  J Dent Sci       Date:  2022-01-10       Impact factor: 3.719

5.  Clinical validation of a nanodiamond-embedded thermoplastic biomaterial.

Authors:  Dong-Keun Lee; Theodore Kee; Zhangrui Liang; Desiree Hsiou; Darron Miya; Brian Wu; Eiji Osawa; Edward Kai-Hua Chow; Eric C Sung; Mo K Kang; Dean Ho
Journal:  Proc Natl Acad Sci U S A       Date:  2017-10-23       Impact factor: 11.205

6.  Examination of radio-opacity enhancing additives in shape memory polyurethane foams.

Authors:  Andrew C Weems; Jeffery E Raymond; Kevin T Wacker; Tiffany P Gustafson; Brandis Keller; Karen L Wooley; Duncan J Maitland
Journal:  J Appl Polym Sci       Date:  2015-02-24       Impact factor: 3.125

7.  Fracture Strength and Stress Distribution in Premolars Restored with Cast Post-and-Cores or Glass-Fiber Posts Considering the Influence of Ferule.

Authors:  Atais Bacchi; Ricardo Armini Caldas; Daniel Schmidt; Mauricio Detoni; Doglas Cecchin; Ana Paula Farina
Journal:  Biomed Res Int       Date:  2019-01-03       Impact factor: 3.411

8.  Nanodiamond-Gutta Percha Composite Biomaterials for Root Canal Therapy.

Authors:  Dong-Keun Lee; Sue Vin Kim; Adelheid Nerisa Limansubroto; Albert Yen; Akrivoula Soundia; Cun-Yu Wang; Wenyuan Shi; Christine Hong; Sotirios Tetradis; Yong Kim; No-Hee Park; Mo K Kang; Dean Ho
Journal:  ACS Nano       Date:  2015-10-15       Impact factor: 15.881

9.  Component analysis of four commercial brands of gutta-percha.

Authors:  Naghmeh Aminzadeh; Shahram Azimi; Moslem Hagh Shenas
Journal:  Iran Endod J       Date:  2006

10.  Strain Distribution in Root Surface Dentin of Maxillary Central Incisors during Lateral Compaction.

Authors:  Raphael Pilo; Zvi Metzger; Tamar Brosh
Journal:  PLoS One       Date:  2016-05-26       Impact factor: 3.240
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