{"title":"使用三种基质系统对II类复合修复体的表面轮廓、近中径和接触紧密性进行形态学评估：一项体外研究。","authors":"Suchitra Kumari, Ramya Raghu, Ashish Shetty, Subhashini Rajasekhara, Souparnika Divakaran Padmini","doi":"10.4103/jcd.jcd_403_22","DOIUrl":null,"url":null,"abstract":"<p><strong>Context: </strong>Sectional matrices and contact rings are valuable aids to establish proximal contact tightness in Class II composite restorations.</p><p><strong>Aims: </strong>This study aims to evaluate the proximal contact area in Class II composite restorations using three matrix systems based on morphological analysis, mesiodistal (M-D) diameter and contact tightness.</p><p><strong>Subjects and methods: </strong>A standardized DO cavity was prepared in 30 plastic molar teeth. They were randomly divided into three groups (<i>n</i> = 10) and restored using Tetric N-Ceram composite material and three matrix systems - Saddle matrix, Palodent system, and Palodent Plus system. The quality of proximal contacts was assessed by measuring the maximum M-D diameter of the restored teeth using a digital caliper; the tightness of the proximal contact area using Unifloss and a standardized metal blade (30 μm). Qualitative assessment of contact morphology was done by visual means while quantitative assessment of contour was done using Medit scanner superimposing method and ExoCAD software.</p><p><strong>Statistical analysis used: </strong>One-way ANOVA test was used to compare the mean M-D diameter (in mm) in the occlusal third, middle third, and the proximal contact area between the three groups. Chi-square test was used to compare the proximal contact area tightness using the passage of Unifloss. The buccolingual and occluso-gingival morphology was also compared among the three groups. The level of significance (<i>P</i> value) was set at <i>P</i> < 0.05.</p><p><strong>Results: </strong>For the occlusal and middle third, significantly larger diameters were achieved with the Palodent Plus system than with the Saddle matrix. More flat contours were seen in the case of the Saddle matrix than in the case of the Palodent system while the Palodent Plus system exhibited a minimal depth of concavity as determined by three-dimensional imaging of the contact morphology.</p><p><strong>Conclusions: </strong>Palodent Plus and Palodent matrix systems established superior contacts and contours than the Saddle matrix.</p>","PeriodicalId":38892,"journal":{"name":"Journal of Conservative Dentistry","volume":"26 1","pages":"67-72"},"PeriodicalIF":0.0000,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10003278/pdf/","citationCount":"2","resultStr":"{\"title\":\"Morphological assessment of the surface profile, mesiodistal diameter, and contact tightness of Class II composite restorations using three matrix systems: An <i>in vitro</i> study.\",\"authors\":\"Suchitra Kumari, Ramya Raghu, Ashish Shetty, Subhashini Rajasekhara, Souparnika Divakaran Padmini\",\"doi\":\"10.4103/jcd.jcd_403_22\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<p><strong>Context: </strong>Sectional matrices and contact rings are valuable aids to establish proximal contact tightness in Class II composite restorations.</p><p><strong>Aims: </strong>This study aims to evaluate the proximal contact area in Class II composite restorations using three matrix systems based on morphological analysis, mesiodistal (M-D) diameter and contact tightness.</p><p><strong>Subjects and methods: </strong>A standardized DO cavity was prepared in 30 plastic molar teeth. They were randomly divided into three groups (<i>n</i> = 10) and restored using Tetric N-Ceram composite material and three matrix systems - Saddle matrix, Palodent system, and Palodent Plus system. The quality of proximal contacts was assessed by measuring the maximum M-D diameter of the restored teeth using a digital caliper; the tightness of the proximal contact area using Unifloss and a standardized metal blade (30 μm). Qualitative assessment of contact morphology was done by visual means while quantitative assessment of contour was done using Medit scanner superimposing method and ExoCAD software.</p><p><strong>Statistical analysis used: </strong>One-way ANOVA test was used to compare the mean M-D diameter (in mm) in the occlusal third, middle third, and the proximal contact area between the three groups. Chi-square test was used to compare the proximal contact area tightness using the passage of Unifloss. The buccolingual and occluso-gingival morphology was also compared among the three groups. The level of significance (<i>P</i> value) was set at <i>P</i> < 0.05.</p><p><strong>Results: </strong>For the occlusal and middle third, significantly larger diameters were achieved with the Palodent Plus system than with the Saddle matrix. More flat contours were seen in the case of the Saddle matrix than in the case of the Palodent system while the Palodent Plus system exhibited a minimal depth of concavity as determined by three-dimensional imaging of the contact morphology.</p><p><strong>Conclusions: </strong>Palodent Plus and Palodent matrix systems established superior contacts and contours than the Saddle matrix.</p>\",\"PeriodicalId\":38892,\"journal\":{\"name\":\"Journal of Conservative Dentistry\",\"volume\":\"26 1\",\"pages\":\"67-72\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2023-01-01\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC10003278/pdf/\",\"citationCount\":\"2\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Journal of Conservative Dentistry\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.4103/jcd.jcd_403_22\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"2022/12/8 0:00:00\",\"PubModel\":\"Epub\",\"JCR\":\"Q2\",\"JCRName\":\"Dentistry\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Journal of Conservative Dentistry","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.4103/jcd.jcd_403_22","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2022/12/8 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"Dentistry","Score":null,"Total":0}
Morphological assessment of the surface profile, mesiodistal diameter, and contact tightness of Class II composite restorations using three matrix systems: An in vitro study.
Context: Sectional matrices and contact rings are valuable aids to establish proximal contact tightness in Class II composite restorations.
Aims: This study aims to evaluate the proximal contact area in Class II composite restorations using three matrix systems based on morphological analysis, mesiodistal (M-D) diameter and contact tightness.
Subjects and methods: A standardized DO cavity was prepared in 30 plastic molar teeth. They were randomly divided into three groups (n = 10) and restored using Tetric N-Ceram composite material and three matrix systems - Saddle matrix, Palodent system, and Palodent Plus system. The quality of proximal contacts was assessed by measuring the maximum M-D diameter of the restored teeth using a digital caliper; the tightness of the proximal contact area using Unifloss and a standardized metal blade (30 μm). Qualitative assessment of contact morphology was done by visual means while quantitative assessment of contour was done using Medit scanner superimposing method and ExoCAD software.
Statistical analysis used: One-way ANOVA test was used to compare the mean M-D diameter (in mm) in the occlusal third, middle third, and the proximal contact area between the three groups. Chi-square test was used to compare the proximal contact area tightness using the passage of Unifloss. The buccolingual and occluso-gingival morphology was also compared among the three groups. The level of significance (P value) was set at P < 0.05.
Results: For the occlusal and middle third, significantly larger diameters were achieved with the Palodent Plus system than with the Saddle matrix. More flat contours were seen in the case of the Saddle matrix than in the case of the Palodent system while the Palodent Plus system exhibited a minimal depth of concavity as determined by three-dimensional imaging of the contact morphology.
Conclusions: Palodent Plus and Palodent matrix systems established superior contacts and contours than the Saddle matrix.
期刊介绍：
The Journal of Conservative Dentistry (ISSN - 0972-0707) is the official journal of the Indian Association of Conservative Dentistry and Endodontics (IACDE). Our journal publishes scientific articles, case reports, short communications, invited reviews and comparative studies evaluating materials and methods in the fields of Conservative Dentistry, Dental Materials and Endodontics. J Conserv Dent has a diverse readership that includes full-time clinicians, full-time academicians, residents, students and scientists. Effective communication with this diverse readership requires careful attention to writing style.
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