Occlusal contact area (OCA) wear of two new composite restoratives

The occlusal contact area wear resistance of two new composite restoratives (Z250 and P60) was investigated and compared with two existing materials (Silux and Z100) using a reciprocal compression‐sliding test apparatus. Six wear specimens were made for each material and subjected to wear testing at...

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Published in:Journal of oral rehabilitation 2002-02, Vol.29 (2), p.194-200
Main Author: Yap, A. U. J.
Format: Article
Language:English
Subjects:
Analysis of Variance
Bisphenol A-Glycidyl Methacrylate
composite
Composite Resins
Compressive Strength
Dental Occlusion
Dental Restoration Wear
Dental Stress Analysis
Dentistry
Materials Testing
occlusal
Particle Size
restoratives
Silicon Dioxide
Statistics, Nonparametric
wear
Zirconium
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description The occlusal contact area wear resistance of two new composite restoratives (Z250 and P60) was investigated and compared with two existing materials (Silux and Z100) using a reciprocal compression‐sliding test apparatus. Six wear specimens were made for each material and subjected to wear testing at 20 MPa with artificial saliva as lubricant. Wear depth (μm) was measured using profilometry every 20 000 cycles up to 120 000 cycles. Results were analysed using ANOVA/Scheffe’s test (P 
doi_str_mv 10.1046/j.1365-2842.2002.00814.x
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U. J.</creator><creatorcontrib>Yap, A. U. J.</creatorcontrib><description>The occlusal contact area wear resistance of two new composite restoratives (Z250 and P60) was investigated and compared with two existing materials (Silux and Z100) using a reciprocal compression‐sliding test apparatus. Six wear specimens were made for each material and subjected to wear testing at 20 MPa with artificial saliva as lubricant. Wear depth (μm) was measured using profilometry every 20 000 cycles up to 120 000 cycles. Results were analysed using ANOVA/Scheffe’s test (P &lt; 0·05) and Pearson’s correlation. The effects of cyclic loading on wear and counter‐body loss were material dependent. Silux had the lowest wear at all cyclic intervals. At 20 000 and 40 000 cycles, Silux had significantly less wear than all the other composites evaluated, and Z100 had significantly less wear than Z250 and P60. After 60 000 cycles, significant differences in wear was observed only between Silux and the other composites. Correlation between number of cycles and wear/counter‐body loss, and between wear and counter‐body were significant and positive. The microfilled composite Silux had significantly better OCA wear resistance than the minifilled composites Z100, Z250 and P60.</description><identifier>ISSN: 0305-182X</identifier><identifier>EISSN: 1365-2842</identifier><identifier>DOI: 10.1046/j.1365-2842.2002.00814.x</identifier><identifier>PMID: 11856400</identifier><language>eng</language><publisher>Oxford UK: Blackwell Science Ltd</publisher><subject>Analysis of Variance ; Bisphenol A-Glycidyl Methacrylate ; composite ; Composite Resins ; Compressive Strength ; Dental Occlusion ; Dental Restoration Wear ; Dental Stress Analysis ; Dentistry ; Materials Testing ; occlusal ; Particle Size ; restoratives ; Silicon Dioxide ; Statistics, Nonparametric ; wear ; Zirconium</subject><ispartof>Journal of oral rehabilitation, 2002-02, Vol.29 (2), p.194-200</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c4694-c38460987b9b348321f0ab8cb19bc12f7432359ed70e472d092ad61b835d8b083</citedby><cites>FETCH-LOGICAL-c4694-c38460987b9b348321f0ab8cb19bc12f7432359ed70e472d092ad61b835d8b083</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,778,782,27907,27908</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/11856400$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yap, A. U. J.</creatorcontrib><title>Occlusal contact area (OCA) wear of two new composite restoratives</title><title>Journal of oral rehabilitation</title><addtitle>J Oral Rehabil</addtitle><description>The occlusal contact area wear resistance of two new composite restoratives (Z250 and P60) was investigated and compared with two existing materials (Silux and Z100) using a reciprocal compression‐sliding test apparatus. Six wear specimens were made for each material and subjected to wear testing at 20 MPa with artificial saliva as lubricant. Wear depth (μm) was measured using profilometry every 20 000 cycles up to 120 000 cycles. Results were analysed using ANOVA/Scheffe’s test (P &lt; 0·05) and Pearson’s correlation. The effects of cyclic loading on wear and counter‐body loss were material dependent. Silux had the lowest wear at all cyclic intervals. At 20 000 and 40 000 cycles, Silux had significantly less wear than all the other composites evaluated, and Z100 had significantly less wear than Z250 and P60. After 60 000 cycles, significant differences in wear was observed only between Silux and the other composites. Correlation between number of cycles and wear/counter‐body loss, and between wear and counter‐body were significant and positive. The microfilled composite Silux had significantly better OCA wear resistance than the minifilled composites Z100, Z250 and P60.</description><subject>Analysis of Variance</subject><subject>Bisphenol A-Glycidyl Methacrylate</subject><subject>composite</subject><subject>Composite Resins</subject><subject>Compressive Strength</subject><subject>Dental Occlusion</subject><subject>Dental Restoration Wear</subject><subject>Dental Stress Analysis</subject><subject>Dentistry</subject><subject>Materials Testing</subject><subject>occlusal</subject><subject>Particle Size</subject><subject>restoratives</subject><subject>Silicon Dioxide</subject><subject>Statistics, Nonparametric</subject><subject>wear</subject><subject>Zirconium</subject><issn>0305-182X</issn><issn>1365-2842</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><recordid>eNqNkMtO4zAUQC00CEqHX0BeoZlFwvUjtrNg0al4o4lAM5rZWY7jSClpU-yUtn-PS6uyZWVLPuf66iCECaQEuLiYpISJLKGK05QC0BRAEZ6uDtBg__ANDYBBlhBF_x-jkxAmECmWySN0TIjKBAcYoF-Fte0imBbbbtYb22PjncE_ivHoJ14643FX437Z4ZlbRmQ670LTO-xd6Dtv-ubNhe_osDZtcKe7c4j-Xl_9Gd8mj8XN3Xj0mFgucp5YpriAXMkyLxlXjJIaTKlsSfLSElpLzijLcldJcFzSCnJqKkHKuHKlyrj5EJ1v585997qIC-hpE6xrWzNz3SJoSaJGBERQbUHruxC8q_XcN1Pj15qA3vTTE73JpDeZ9Kaf_uinV1E92_2xKKeu-hR3wSJwuQWWTevWXx6s74viOd6in2z9JvRutfeNf9FCMpnpf79vtHh4eqBUgs7YOzrni4U</recordid><startdate>200202</startdate><enddate>200202</enddate><creator>Yap, A. 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The effects of cyclic loading on wear and counter‐body loss were material dependent. Silux had the lowest wear at all cyclic intervals. At 20 000 and 40 000 cycles, Silux had significantly less wear than all the other composites evaluated, and Z100 had significantly less wear than Z250 and P60. After 60 000 cycles, significant differences in wear was observed only between Silux and the other composites. Correlation between number of cycles and wear/counter‐body loss, and between wear and counter‐body were significant and positive. The microfilled composite Silux had significantly better OCA wear resistance than the minifilled composites Z100, Z250 and P60.</abstract><cop>Oxford UK</cop><pub>Blackwell Science Ltd</pub><pmid>11856400</pmid><doi>10.1046/j.1365-2842.2002.00814.x</doi><tpages>7</tpages></addata></record>
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source Wiley-Blackwell Read & Publish Collection
subjects Analysis of Variance
Bisphenol A-Glycidyl Methacrylate
composite
Composite Resins
Compressive Strength
Dental Occlusion
Dental Restoration Wear
Dental Stress Analysis
Dentistry
Materials Testing
occlusal
Particle Size
restoratives
Silicon Dioxide
Statistics, Nonparametric
wear
Zirconium
title Occlusal contact area (OCA) wear of two new composite restoratives
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