RESTAURACIONES CON RESINA COMPUESTA COMPARANDO TÉCNICA CONVENCIONAL VERSUS TÉCNICA INDIRECTA EN DIENTES POSTERIORES UTILIZANDO TECNOLOGÍA CAD/CAM: un estudio piloto controlado y aleatorizado.
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Abstract
Problem setting: Few clinical studies have compared the application of
composite resins using direct and indirect methods. In the scientific literature, no
technique is found that describes large composite resin restorations guided by a
CAD/CAM method.
Objective: To evaluate the clinical behavior of composite resin restorations in
posterior teeth, using conventional and indirect techniques over a period of 7 days.
The evaluation will be carried out considering the United States Public Health
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Service (USPHS) criteria, analyzing aspects such as marginal adaptation, marginal
pigmentation, wear, retention, the presence of recurrent caries, and surface texture.
Materials and Methods: The study was conducted with participants
requiring restoration procedures for extensively damaged teeth, using both direct and
indirect techniques, according to predefined inclusion/exclusion criteria. Two clinical
evaluations were performed by a calibrated examiner: one immediately after the
restoration and another after 7 days. The modified USPHS criteria were used to
evaluate the restorations. The data considered for statistical analysis and the results
obtained were evaluated using non-parametric tests (Chi-square) with a significance
level of 5%.
Results: Statistical analysis revealed no statistically significant differences
among the restorative techniques according to the criteria evaluated in 7 days. All
criteria received the alpha score during baseline and 7-day control. All criteria
received the alpha score during baseline and 7-day control.
Conclusion: One of the main limitations of this study is the short observation
period, as the follow-up was conducted only for 7 days. This time frame is
insufficient to assess the long-term behavior of the restorations in terms of wear,
marginal adaptation, or pigmentation. Therefore, no significant differences were
observed between the restorative techniques in this preliminary study, which does not
allow for recommending one technique over the other. It is essential to conduct
further studies with a longer follow-up period and a larger number of participants to
draw more solid and substantiated conclusions.