Perceptions of Sectional and Circumferential Matrix Systems in Posterior Proximal Restorations: A Survey on Interproximal Contact Quality and Emergence Profile by Romanian Dentists

(1) Background: The restoration of posterior proximal carious lesions remains a clinical challenge, particularly in achieving a correct reconstruction of the interdental contact point. The choice of matrix system significantly influences the clinical outcome. (2) Methods: A cross-sectional study was conducted using an online questionnaire distributed to a sample of 129 dental practitioners between May and June 2024. The survey assessed clinicians’ preferences and experiences regarding the use of sectional versus circumferential matrix systems in posterior restorations. (3) Results: The majority of respondents (56.6%) preferred sectional matrix systems, which were associated with a higher rate of achieving an optimal contact point (p < 0.05) and an adequate emergence profile (94.6% vs. 82.9%). Sectional matrices were also associated with fewer open contacts than circumferential systems. (4) Conclusions: Sectional matrix systems are perceived as superior in terms of achieving effective proximal contact and an optimal emergence profile. The findings support the use of these systems in Class II restorations; however, more rigorous standards are needed for evaluating interdental contact quality.