Influence of Endodontic Treatment and Retreatment on the Fatigue Failure Load, Numbers of Cycles for Failure, and Survival Rates of Human Canine Teeth
This study evaluated the effects of endodontic treatment and retreatment on the fatigue failure load, numbers of cycles for failure, and survival rates of canine teeth. Sixty extracted canine teeth, each with a single root canal, were selected and randomly divided into 4 groups (n = 15): untreated,...
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| Veröffentlicht in: | Journal of endodontics 2017-12, Vol.43 (12), p.2081-2087 |
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| container_title | Journal of endodontics |
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| creator | Missau, Taiane De Carlo Bello, Mariana Michelon, Carina Mastella Lang, Pauline Kalil Pereira, Gabriel Baldissara, Paolo Valandro, Luiz Felipe Souza Bier, Carlos Alexandre Pivetta Rippe, Marília |
| description | This study evaluated the effects of endodontic treatment and retreatment on the fatigue failure load, numbers of cycles for failure, and survival rates of canine teeth.
Sixty extracted canine teeth, each with a single root canal, were selected and randomly divided into 4 groups (n = 15): untreated, teeth without endodontic intervention; prepared, teeth subjected only to rotary instrumentation; filled, teeth receiving complete endodontic treatment; and retreated, teeth retreated endodontically. After the different endodontic interventions, the specimens were subjected to fatigue testing by the stepwise method: 200 N (× 5000 load pulses), 300 N, 400 N, 500 N, 600 N, 800 N, and 900 N at a maximum of 30,000 load pulses each or the occurrence of fracture. Data from load to failure and numbers of cycles for fracture were recorded and subjected to Kaplan-Meier and Log Rank tests (P |
| doi_str_mv | 10.1016/j.joen.2017.07.013 |
| format | Article |
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Sixty extracted canine teeth, each with a single root canal, were selected and randomly divided into 4 groups (n = 15): untreated, teeth without endodontic intervention; prepared, teeth subjected only to rotary instrumentation; filled, teeth receiving complete endodontic treatment; and retreated, teeth retreated endodontically. After the different endodontic interventions, the specimens were subjected to fatigue testing by the stepwise method: 200 N (× 5000 load pulses), 300 N, 400 N, 500 N, 600 N, 800 N, and 900 N at a maximum of 30,000 load pulses each or the occurrence of fracture. Data from load to failure and numbers of cycles for fracture were recorded and subjected to Kaplan-Meier and Log Rank tests (P < .05), in addition to Weibull analysis. The fractures of the specimens were classified as repairable or catastrophic.
The retreated, filled, and untreated groups presented statistically significantly higher fatigue failure loads and numbers of cycles for failure than did the prepared group. Weibull analysis showed no statistically significant difference among the treatments for characteristic load to failure and characteristic number of cycles for failure, although, for number of cycles, a higher Weibull modulus was observed in filled and retreated conditions. The predominant mode of failure was catastrophic.
Teeth subjected to complete endodontic treatment and retreatment behaved similarly in terms of fatigue failure load and number of cycles to failure when compared with untreated teeth.
•Predominant mode of failure of canines subjected to fatigue was catastrophic fracture.•Filled, retreated, and untreated teeth presented a similar fatigue resistance.•There was no statistical difference among the Weibull moduli of the load of failure.</description><identifier>ISSN: 0099-2399</identifier><identifier>EISSN: 1878-3554</identifier><identifier>DOI: 10.1016/j.joen.2017.07.013</identifier><identifier>PMID: 29061355</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Cuspid ; Dental Stress Analysis ; Dentistry ; Endodontic treatment ; fatigue resistance ; Humans ; In Vitro Techniques ; Random Allocation ; Retreatment ; Root Canal Therapy ; Treatment Failure ; vertical root fracture</subject><ispartof>Journal of endodontics, 2017-12, Vol.43 (12), p.2081-2087</ispartof><rights>2017 American Association of Endodontists</rights><rights>Copyright © 2017 American Association of Endodontists. Published by Elsevier Inc. All rights reserved.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c356t-65d7d63eb9e5334cb6c5f81468d582bae12918945febe0bec836570a60f62c5e3</citedby><cites>FETCH-LOGICAL-c356t-65d7d63eb9e5334cb6c5f81468d582bae12918945febe0bec836570a60f62c5e3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.joen.2017.07.013$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/29061355$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Missau, Taiane</creatorcontrib><creatorcontrib>De Carlo Bello, Mariana</creatorcontrib><creatorcontrib>Michelon, Carina</creatorcontrib><creatorcontrib>Mastella Lang, Pauline</creatorcontrib><creatorcontrib>Kalil Pereira, Gabriel</creatorcontrib><creatorcontrib>Baldissara, Paolo</creatorcontrib><creatorcontrib>Valandro, Luiz Felipe</creatorcontrib><creatorcontrib>Souza Bier, Carlos Alexandre</creatorcontrib><creatorcontrib>Pivetta Rippe, Marília</creatorcontrib><title>Influence of Endodontic Treatment and Retreatment on the Fatigue Failure Load, Numbers of Cycles for Failure, and Survival Rates of Human Canine Teeth</title><title>Journal of endodontics</title><addtitle>J Endod</addtitle><description>This study evaluated the effects of endodontic treatment and retreatment on the fatigue failure load, numbers of cycles for failure, and survival rates of canine teeth.
Sixty extracted canine teeth, each with a single root canal, were selected and randomly divided into 4 groups (n = 15): untreated, teeth without endodontic intervention; prepared, teeth subjected only to rotary instrumentation; filled, teeth receiving complete endodontic treatment; and retreated, teeth retreated endodontically. After the different endodontic interventions, the specimens were subjected to fatigue testing by the stepwise method: 200 N (× 5000 load pulses), 300 N, 400 N, 500 N, 600 N, 800 N, and 900 N at a maximum of 30,000 load pulses each or the occurrence of fracture. Data from load to failure and numbers of cycles for fracture were recorded and subjected to Kaplan-Meier and Log Rank tests (P < .05), in addition to Weibull analysis. The fractures of the specimens were classified as repairable or catastrophic.
The retreated, filled, and untreated groups presented statistically significantly higher fatigue failure loads and numbers of cycles for failure than did the prepared group. Weibull analysis showed no statistically significant difference among the treatments for characteristic load to failure and characteristic number of cycles for failure, although, for number of cycles, a higher Weibull modulus was observed in filled and retreated conditions. The predominant mode of failure was catastrophic.
Teeth subjected to complete endodontic treatment and retreatment behaved similarly in terms of fatigue failure load and number of cycles to failure when compared with untreated teeth.
•Predominant mode of failure of canines subjected to fatigue was catastrophic fracture.•Filled, retreated, and untreated teeth presented a similar fatigue resistance.•There was no statistical difference among the Weibull moduli of the load of failure.</description><subject>Cuspid</subject><subject>Dental Stress Analysis</subject><subject>Dentistry</subject><subject>Endodontic treatment</subject><subject>fatigue resistance</subject><subject>Humans</subject><subject>In Vitro Techniques</subject><subject>Random Allocation</subject><subject>Retreatment</subject><subject>Root Canal Therapy</subject><subject>Treatment Failure</subject><subject>vertical root fracture</subject><issn>0099-2399</issn><issn>1878-3554</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2017</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kc9q3DAQh0VpabbbvkAPRcce4q1kWbIFvZQlaQJLC-n2LGRp3GixpVR_FvIied7a2STHwsAw8M0HMz-EPlKyoYSKL4fNIYDf1IS2GzIXZa_QinZtVzHOm9doRYiUVc2kPEPvUjqQGWSsfYvOakkEnaEVerj2w1jAG8BhwBfeBht8dgbvI-g8gc9Ye4tvIL_MweN8C_hSZ_enLN2NJQLeBW3P8Y8y9RDTItvemxESHkJ8Zs4fXb9KPLqjHvGNzvBIXpVJe7zV3nnAe4B8-x69GfSY4MNTX6Pflxf77VW1-_n9evttVxnGRa4Et60VDHoJnLHG9MLwoaON6Czv6l4DrSXtZMMH6IH0YDomeEu0IIOoDQe2Rp9P3rsY_hZIWU0uGRhH7SGUpKjknIhm-dYa1SfUxJBShEHdRTfpeK8oUUse6qCWPNSShyJzUTYvfXryl34C-7LyHMAMfD0BMF95dBBVMm6Jw7oIJisb3P_8_wBPB50U</recordid><startdate>201712</startdate><enddate>201712</enddate><creator>Missau, Taiane</creator><creator>De Carlo Bello, Mariana</creator><creator>Michelon, Carina</creator><creator>Mastella Lang, Pauline</creator><creator>Kalil Pereira, Gabriel</creator><creator>Baldissara, Paolo</creator><creator>Valandro, Luiz Felipe</creator><creator>Souza Bier, Carlos Alexandre</creator><creator>Pivetta Rippe, Marília</creator><general>Elsevier Inc</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7X8</scope></search><sort><creationdate>201712</creationdate><title>Influence of Endodontic Treatment and Retreatment on the Fatigue Failure Load, Numbers of Cycles for Failure, and Survival Rates of Human Canine Teeth</title><author>Missau, Taiane ; De Carlo Bello, Mariana ; Michelon, Carina ; Mastella Lang, Pauline ; Kalil Pereira, Gabriel ; Baldissara, Paolo ; Valandro, Luiz Felipe ; Souza Bier, Carlos Alexandre ; Pivetta Rippe, Marília</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c356t-65d7d63eb9e5334cb6c5f81468d582bae12918945febe0bec836570a60f62c5e3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2017</creationdate><topic>Cuspid</topic><topic>Dental Stress Analysis</topic><topic>Dentistry</topic><topic>Endodontic treatment</topic><topic>fatigue resistance</topic><topic>Humans</topic><topic>In Vitro Techniques</topic><topic>Random Allocation</topic><topic>Retreatment</topic><topic>Root Canal Therapy</topic><topic>Treatment Failure</topic><topic>vertical root fracture</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Missau, Taiane</creatorcontrib><creatorcontrib>De Carlo Bello, Mariana</creatorcontrib><creatorcontrib>Michelon, Carina</creatorcontrib><creatorcontrib>Mastella Lang, Pauline</creatorcontrib><creatorcontrib>Kalil Pereira, Gabriel</creatorcontrib><creatorcontrib>Baldissara, Paolo</creatorcontrib><creatorcontrib>Valandro, Luiz Felipe</creatorcontrib><creatorcontrib>Souza Bier, Carlos Alexandre</creatorcontrib><creatorcontrib>Pivetta Rippe, Marília</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>MEDLINE - Academic</collection><jtitle>Journal of endodontics</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Missau, Taiane</au><au>De Carlo Bello, Mariana</au><au>Michelon, Carina</au><au>Mastella Lang, Pauline</au><au>Kalil Pereira, Gabriel</au><au>Baldissara, Paolo</au><au>Valandro, Luiz Felipe</au><au>Souza Bier, Carlos Alexandre</au><au>Pivetta Rippe, Marília</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Influence of Endodontic Treatment and Retreatment on the Fatigue Failure Load, Numbers of Cycles for Failure, and Survival Rates of Human Canine Teeth</atitle><jtitle>Journal of endodontics</jtitle><addtitle>J Endod</addtitle><date>2017-12</date><risdate>2017</risdate><volume>43</volume><issue>12</issue><spage>2081</spage><epage>2087</epage><pages>2081-2087</pages><issn>0099-2399</issn><eissn>1878-3554</eissn><abstract>This study evaluated the effects of endodontic treatment and retreatment on the fatigue failure load, numbers of cycles for failure, and survival rates of canine teeth.
Sixty extracted canine teeth, each with a single root canal, were selected and randomly divided into 4 groups (n = 15): untreated, teeth without endodontic intervention; prepared, teeth subjected only to rotary instrumentation; filled, teeth receiving complete endodontic treatment; and retreated, teeth retreated endodontically. After the different endodontic interventions, the specimens were subjected to fatigue testing by the stepwise method: 200 N (× 5000 load pulses), 300 N, 400 N, 500 N, 600 N, 800 N, and 900 N at a maximum of 30,000 load pulses each or the occurrence of fracture. Data from load to failure and numbers of cycles for fracture were recorded and subjected to Kaplan-Meier and Log Rank tests (P < .05), in addition to Weibull analysis. The fractures of the specimens were classified as repairable or catastrophic.
The retreated, filled, and untreated groups presented statistically significantly higher fatigue failure loads and numbers of cycles for failure than did the prepared group. Weibull analysis showed no statistically significant difference among the treatments for characteristic load to failure and characteristic number of cycles for failure, although, for number of cycles, a higher Weibull modulus was observed in filled and retreated conditions. The predominant mode of failure was catastrophic.
Teeth subjected to complete endodontic treatment and retreatment behaved similarly in terms of fatigue failure load and number of cycles to failure when compared with untreated teeth.
•Predominant mode of failure of canines subjected to fatigue was catastrophic fracture.•Filled, retreated, and untreated teeth presented a similar fatigue resistance.•There was no statistical difference among the Weibull moduli of the load of failure.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>29061355</pmid><doi>10.1016/j.joen.2017.07.013</doi><tpages>7</tpages></addata></record> |
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| subjects | Cuspid Dental Stress Analysis Dentistry Endodontic treatment fatigue resistance Humans In Vitro Techniques Random Allocation Retreatment Root Canal Therapy Treatment Failure vertical root fracture |
| title | Influence of Endodontic Treatment and Retreatment on the Fatigue Failure Load, Numbers of Cycles for Failure, and Survival Rates of Human Canine Teeth |
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