pH Changes in Root Dentin after Intracanal Placement of Improved Calcium Hydroxide Containing Gutta-percha Points
The in vitro pH changes in root dentin over a period of 2 weeks was investigated in 48 extracted bicuspids after intracanal placement of either Roeko Calcium Hydroxide Plus Points, aqueous calcium hydroxide paste, or gutta-percha points (control group) after root canal preparation. Microelectrodes w...
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| Veröffentlicht in: | Journal of endodontics 2003, Vol.29 (1), p.4-8 |
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| creator | Ho, Chew Han Khoo, Angela Tan, Russell Teh, Jennifer Lim, Kian Chong Sae-Lim, Varawan |
| description | The in vitro pH changes in root dentin over a period of 2 weeks was investigated in 48 extracted bicuspids after intracanal placement of either Roeko Calcium Hydroxide Plus Points, aqueous calcium hydroxide paste, or gutta-percha points (control group) after root canal preparation. Microelectrodes were placed in outer and inner root dentin at cervical, middle, and apical thirds of the root to measure the pH at 1 h, 2 h, 3 h, 1 day, 3 days, 7 days, and 14 days. Roeko Calcium Hydroxide Plus Points reached a peak inner dentine pH of 11.67 and a peak outer dentine pH of 10.82 at 3 h. In addition, Roeko Calcium Hydroxide Plus Points maintained an outer dentine pH above 9.5 for approximately 2 days, whereas the aqueous calcium hydroxide paste did not reach this pH. However, the alkalinity in dentin with Roeko Calcium Hydroxide Plus Points was maintained for 7 days only, whereas aqueous calcium hydroxide paste maintained an alkaline environment throughout the 2-week period. |
| doi_str_mv | 10.1097/00004770-200301000-00002 |
| format | Article |
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Microelectrodes were placed in outer and inner root dentin at cervical, middle, and apical thirds of the root to measure the pH at 1 h, 2 h, 3 h, 1 day, 3 days, 7 days, and 14 days. Roeko Calcium Hydroxide Plus Points reached a peak inner dentine pH of 11.67 and a peak outer dentine pH of 10.82 at 3 h. In addition, Roeko Calcium Hydroxide Plus Points maintained an outer dentine pH above 9.5 for approximately 2 days, whereas the aqueous calcium hydroxide paste did not reach this pH. However, the alkalinity in dentin with Roeko Calcium Hydroxide Plus Points was maintained for 7 days only, whereas aqueous calcium hydroxide paste maintained an alkaline environment throughout the 2-week period.</description><identifier>ISSN: 0099-2399</identifier><identifier>EISSN: 1878-3554</identifier><identifier>DOI: 10.1097/00004770-200301000-00002</identifier><identifier>PMID: 12540209</identifier><language>eng</language><publisher>United States: Elsevier Inc</publisher><subject>Analysis of Variance ; Bicuspid ; Calcium Hydroxide - pharmacology ; Dental Cements - pharmacology ; Dentin - chemistry ; Dentin - drug effects ; Dentistry ; Diffusion ; Gutta-Percha - pharmacology ; Humans ; Hydrogen-Ion Concentration - drug effects ; Hydroxides - chemistry ; In Vitro Techniques ; Root Canal Filling Materials - pharmacology ; Tooth Root</subject><ispartof>Journal of endodontics, 2003, Vol.29 (1), p.4-8</ispartof><rights>2003 The American Association of Endodontists</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c436t-37a9e42df3bdbcb102404b2634092ad68f99720b401c7af07e8e4686a96cf813</citedby><cites>FETCH-LOGICAL-c436t-37a9e42df3bdbcb102404b2634092ad68f99720b401c7af07e8e4686a96cf813</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1097/00004770-200301000-00002$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3548,4022,27922,27923,27924,45994</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/12540209$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Ho, Chew Han</creatorcontrib><creatorcontrib>Khoo, Angela</creatorcontrib><creatorcontrib>Tan, Russell</creatorcontrib><creatorcontrib>Teh, Jennifer</creatorcontrib><creatorcontrib>Lim, Kian Chong</creatorcontrib><creatorcontrib>Sae-Lim, Varawan</creatorcontrib><title>pH Changes in Root Dentin after Intracanal Placement of Improved Calcium Hydroxide Containing Gutta-percha Points</title><title>Journal of endodontics</title><addtitle>J Endod</addtitle><description>The in vitro pH changes in root dentin over a period of 2 weeks was investigated in 48 extracted bicuspids after intracanal placement of either Roeko Calcium Hydroxide Plus Points, aqueous calcium hydroxide paste, or gutta-percha points (control group) after root canal preparation. Microelectrodes were placed in outer and inner root dentin at cervical, middle, and apical thirds of the root to measure the pH at 1 h, 2 h, 3 h, 1 day, 3 days, 7 days, and 14 days. Roeko Calcium Hydroxide Plus Points reached a peak inner dentine pH of 11.67 and a peak outer dentine pH of 10.82 at 3 h. In addition, Roeko Calcium Hydroxide Plus Points maintained an outer dentine pH above 9.5 for approximately 2 days, whereas the aqueous calcium hydroxide paste did not reach this pH. However, the alkalinity in dentin with Roeko Calcium Hydroxide Plus Points was maintained for 7 days only, whereas aqueous calcium hydroxide paste maintained an alkaline environment throughout the 2-week period.</description><subject>Analysis of Variance</subject><subject>Bicuspid</subject><subject>Calcium Hydroxide - pharmacology</subject><subject>Dental Cements - pharmacology</subject><subject>Dentin - chemistry</subject><subject>Dentin - drug effects</subject><subject>Dentistry</subject><subject>Diffusion</subject><subject>Gutta-Percha - pharmacology</subject><subject>Humans</subject><subject>Hydrogen-Ion Concentration - drug effects</subject><subject>Hydroxides - chemistry</subject><subject>In Vitro Techniques</subject><subject>Root Canal Filling Materials - pharmacology</subject><subject>Tooth Root</subject><issn>0099-2399</issn><issn>1878-3554</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2003</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNqFUMtu1DAUtRCIDoVfQF6xS7l-TBwvIUBnpEpUqHvLcW5ao8Se2k5F_x63M8CSu7mvc-7jEEIZXDDQ6iNUk0pBwwEEsJo1TyX-gmxYp7pGbLfyJdkAaN1wofUZeZPzTwCmhFCvyRnjWwkc9IbcH3a0v7PhFjP1gf6IsdAvGEqN7VQw0X0oyTob7EyvZ-twqU0aJ7pfDik-4Eh7Ozu_LnT3OKb4y49I-xiK9cGHW3q5lmKbAyZ3Z-l19KHkt-TVZOeM707-nNx8-3rT75qr75f7_tNV46RoSyOU1Sj5OIlhHNzAgEuQA2-FBM3t2HaT1orDIIE5ZSdQ2KFsu9bq1k0dE-fkw3FsPfN-xVzM4rPDebYB45qN4rpttwoqsDsCXYo5J5zMIfnFpkfDwDypbf6obf6q_Vzilfr-tGMdFhz_EU_yVsDnIwDrow8ek8nOY3A4-oSumDH6_2_5DWBmjsE</recordid><startdate>2003</startdate><enddate>2003</enddate><creator>Ho, Chew Han</creator><creator>Khoo, Angela</creator><creator>Tan, Russell</creator><creator>Teh, Jennifer</creator><creator>Lim, Kian Chong</creator><creator>Sae-Lim, Varawan</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>2003</creationdate><title>pH Changes in Root Dentin after Intracanal Placement of Improved Calcium Hydroxide Containing Gutta-percha Points</title><author>Ho, Chew Han ; Khoo, Angela ; Tan, Russell ; Teh, Jennifer ; Lim, Kian Chong ; Sae-Lim, Varawan</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c436t-37a9e42df3bdbcb102404b2634092ad68f99720b401c7af07e8e4686a96cf813</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2003</creationdate><topic>Analysis of Variance</topic><topic>Bicuspid</topic><topic>Calcium Hydroxide - pharmacology</topic><topic>Dental Cements - pharmacology</topic><topic>Dentin - chemistry</topic><topic>Dentin - drug effects</topic><topic>Dentistry</topic><topic>Diffusion</topic><topic>Gutta-Percha - pharmacology</topic><topic>Humans</topic><topic>Hydrogen-Ion Concentration - drug effects</topic><topic>Hydroxides - chemistry</topic><topic>In Vitro Techniques</topic><topic>Root Canal Filling Materials - pharmacology</topic><topic>Tooth Root</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Ho, Chew Han</creatorcontrib><creatorcontrib>Khoo, Angela</creatorcontrib><creatorcontrib>Tan, Russell</creatorcontrib><creatorcontrib>Teh, Jennifer</creatorcontrib><creatorcontrib>Lim, Kian Chong</creatorcontrib><creatorcontrib>Sae-Lim, Varawan</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>Ho, Chew Han</au><au>Khoo, Angela</au><au>Tan, Russell</au><au>Teh, Jennifer</au><au>Lim, Kian Chong</au><au>Sae-Lim, Varawan</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>pH Changes in Root Dentin after Intracanal Placement of Improved Calcium Hydroxide Containing Gutta-percha Points</atitle><jtitle>Journal of endodontics</jtitle><addtitle>J Endod</addtitle><date>2003</date><risdate>2003</risdate><volume>29</volume><issue>1</issue><spage>4</spage><epage>8</epage><pages>4-8</pages><issn>0099-2399</issn><eissn>1878-3554</eissn><abstract>The in vitro pH changes in root dentin over a period of 2 weeks was investigated in 48 extracted bicuspids after intracanal placement of either Roeko Calcium Hydroxide Plus Points, aqueous calcium hydroxide paste, or gutta-percha points (control group) after root canal preparation. Microelectrodes were placed in outer and inner root dentin at cervical, middle, and apical thirds of the root to measure the pH at 1 h, 2 h, 3 h, 1 day, 3 days, 7 days, and 14 days. Roeko Calcium Hydroxide Plus Points reached a peak inner dentine pH of 11.67 and a peak outer dentine pH of 10.82 at 3 h. In addition, Roeko Calcium Hydroxide Plus Points maintained an outer dentine pH above 9.5 for approximately 2 days, whereas the aqueous calcium hydroxide paste did not reach this pH. However, the alkalinity in dentin with Roeko Calcium Hydroxide Plus Points was maintained for 7 days only, whereas aqueous calcium hydroxide paste maintained an alkaline environment throughout the 2-week period.</abstract><cop>United States</cop><pub>Elsevier Inc</pub><pmid>12540209</pmid><doi>10.1097/00004770-200301000-00002</doi><tpages>5</tpages></addata></record> |
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| ispartof | Journal of endodontics, 2003, Vol.29 (1), p.4-8 |
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| source | MEDLINE; ScienceDirect Journals (5 years ago - present) |
| subjects | Analysis of Variance Bicuspid Calcium Hydroxide - pharmacology Dental Cements - pharmacology Dentin - chemistry Dentin - drug effects Dentistry Diffusion Gutta-Percha - pharmacology Humans Hydrogen-Ion Concentration - drug effects Hydroxides - chemistry In Vitro Techniques Root Canal Filling Materials - pharmacology Tooth Root |
| title | pH Changes in Root Dentin after Intracanal Placement of Improved Calcium Hydroxide Containing Gutta-percha Points |
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