Abstract
Objectives: This study aimed to investigate the operator’s ease, satisfaction, and comfort of using a circumferential matrix system and sectional matrix system on the proximal contact points and contours when restoring class II cavities in posterior teeth.Materials and methods: This cross-sectional study was performed at the clinics in the Department of Conservative Dental Sciences, College of Dentistry, Qassim University. A total of 105 dental students randomly participated in this study to restore a class II cavity with direct composite resin restoration. Operators' comfort and satisfaction were evaluated according to their assessment of the contact points they reproduced and the emergence profiles of restorations, using a circumferential matrix system and sectional matrix system.Results: Out of 105 operators, 57 were satisfied with using circumferential matrix bands for most of their cases while 78 of the operators were satisfied with sectional matrix bands. There were no significant differences between operator satisfaction and the use of circumferential matrix band system (P > 0.05) and sectional matrix band system (P = 0.134) but there was a significant difference between difficulty levels in the use of both matrix band systems (P < 0.05; P = 0.000).Conclusion: Circumferential and sectional matrix band systems showed no significant differences with operators' satisfaction during restoring class II cavities in posterior teeth but using a sectional matrix band system was considered easier than using a circumferential matrix band system.
Highlights
A matrix band system is a properly contoured piece of metal or other material that helps to support and give form to the restoration during its placement and hardening [1]
Out of 105 operators, 57 were satisfied with using circumferential matrix bands for most of their cases while 78 of the operators were satisfied with sectional matrix bands
There were no significant differences between operator satisfaction and the use of circumferential matrix band system (P > 0.05) and sectional matrix band system (P = 0.134) but there was a significant difference between difficulty levels in the use of both matrix band systems (P < 0.05; P = 0.000)
Summary
A matrix band system is a properly contoured piece of metal or other material that helps to support and give form to the restoration during its placement and hardening [1]. Making optimum contact points with direct restoration still remains a difficult target to achieve [2,3]. Matrix band system is used to restore cavities with missing proximal walls [3]. Dr Joseph B.F. Tofflemire in 1946 introduced the Tofflemire retainer and band ( known as the universal matrix system) and is still in use today. Tofflemire in 1946 introduced the Tofflemire retainer and band ( known as the universal matrix system) and is still in use today It produces good contours and contacts for use with amalgam and can be employed for insertion of composite resin, but more recently developed matrix systems like sectional matrix band (SMB) systems have been proven more clinically efficacious, especially for the attainment of inter-proximal contacts [6,7]
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