ArticleBMC oral health2023
Impact of matrix systems on proximal contact tightness and surface geometry in class II direct composite restoration in-vitro.
Article in BMC oral health, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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Who cites it
8 citing papers in PubMed.
- Evaluation of proximal contact tightness and associated factors in posterior resin composite restorations: a cross-sectional study in Nairobi, Kenya.BMC oral health · 2026Article
- Effects of two sectional matrix systems on proximal contact tightness and mesiodistal dimension in class II composite restorations: anFrontiers in dental medicine · 2026Article
- Evaluation of Preclinical Class II Composite Restoration Performed by Dental Students Using Analytic Rubric Parameters.Advances in medical education and practice · 2026Article
- Effect of matrix system on the quality of proximal contact in posterior bulk-fill resin composite restorations- an in vitro study.Clinical oral investigations · 2025Article
- Assessment of anatomical contacts and contours of class II restorations using four different dental matrix systems: AnJournal of conservative dentistry and endodontics · 2025Article
- New Technique for Wedge Selection in Direct Class II Restorations: A Pilot Study.Journal of clinical medicine · 2024Article
- Proximal contact tightness of direct Class II composite resin restorations with various matrix systems: A systematic review.Journal of conservative dentistry and endodontics · 2024Review
- Current trends in placing posterior composite restorations: Perspectives from Palestinian general dentists: A questionnair study.Journal of International Society of Preventive & Community DentistryArticle
Corrections and comments
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundPoor contact tightness and contour in class II composite restorations are significant problems in clinical practice. They affect occlusal stability and periodontal health. The aim of this study was to evaluate proximal contact tightness and contour established after completing class II direct composite restorations using two pre-contoured matrix systems.
methodsStandardized mesio-occlusal cavities were prepared in twenty typodont lower right first permanent molar teeth. Prepared teeth were randomly divided into two groups according to matrix system: Group 1, Sectional matrix system with a separation ring (Palodent V3); and Group 2, Circumferential matrix system with integrated tightener (Palodent 360). Contact tightness was evaluated using universal testing machine. Area, depth and curvature radius of proximal surface concavity in the restoration were evaluated using contact stylus profilometer. T-test was used for comparison between groups.
resultsSectional matrix showed higher contact tightness than circumferential matrix system. The results of proximal surface concavity in the restoration showed significantly higher area and depth of concavity with lower radius of curvature in circumferential matrix compared to sectional matrix.
conclusionsThe use of separation ring with sectional matrix provides superior contact tightness compared to circumferential matrix. However, both matrix systems presented some deficiency regarding proximal contour of direct class II resin composite restoration.
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