Graduate student, Department of Dental Clinic, School of Dentistry, Fluminense Federal University, Niterói, Rio de Janeiro, Brazil.
Department of Oral Surgery, School of Dentistry, Fluminense Federal University, Rua Mario dos Santos Braga, 30, Centro, Niterói, Niterói, Rio de Janeiro, Rio de Janeiro, 24020-140, Brazil.
Clin Oral Investig. 2024 Jul 25;28(8):447. doi: 10.1007/s00784-024-05852-7.
This scoping review aimed to identify and describe the available evidence on the effect of magnifying devices (loupe or microscope) on the performance of restorative dental preparations.
This study was conducted according to the PRISMA-ScR guidelines for scoping reviews and registered on the INPLASY database. An electronic search was performed in four databases and Grey literature for articles published until November 2023. Eligibility criteria were determined using the PICOS strategy and comprised studies that evaluated the performance of magnification devices for restorative dental preparations. A bibliographic mapping of the evidence was conducted.
Sixteen studies met the inclusion criteria. Most of the studies (n = 12) compared the performance of dental preparations using magnification loupes vs. no magnification. The magnification for loupes and microscopes ranged from 2.5x to 4.0x and 6.4x to 10x, respectively. The use of magnifying loupes improved the performance of restorative preparations in 66.6% of the evaluated studies. However, when the magnifications were compared, the greater magnification provided by microscopes did not improve preparation performance compared to magnification loupes. Regarding the place of publication, the American continent concentrates the most significant number of evidence.
Although evidence for magnification improving the performance of dental preparations has increased over the last decade, basically only in vitro studies (most of which have taken place in the Americas) have been reported in the literature. The evidence suggests that magnification significantly improves restorative preparation performance when compared to non-magnification. However, higher magnifications (e.g., microscopes) do not appear to improve tooth preparation performance compared with lower magnification devices (e.g., magnification loupes).
Available evidence supports that using magnification can improve the performance of restored tooth preparations. However, high magnifications have no advantages over lower magnifications.
本范围综述旨在确定和描述有关放大镜（眼镜或显微镜）对修复性牙预备效果的现有证据。
本研究根据 PRISMA-ScR 范围综述指南进行，并在 INPLASY 数据库中进行了登记。在四个数据库和灰色文献中进行了电子搜索，以检索截至 2023 年 11 月发表的文章。使用 PICOS 策略确定纳入标准，纳入标准包括评估放大镜在修复性牙预备中的性能的研究。对证据进行了文献映射。
16 项研究符合纳入标准。大多数研究（n=12）比较了使用放大镜眼镜和无放大镜的牙预备性能。眼镜和显微镜的放大倍数分别为 2.5x 至 4.0x 和 6.4x 至 10x。使用放大镜眼镜可提高 66.6%评估研究中修复性预备的性能。然而，当比较放大倍数时，显微镜提供的更大放大倍数并未改善与放大镜眼镜相比的预备性能。就出版地点而言，美洲大陆集中了最多的证据。
尽管过去十年中有关放大镜提高牙预备性能的证据有所增加，但文献中基本上仅报道了体外研究（其中大多数发生在美洲）。证据表明，与非放大相比，放大显著提高了修复性预备的性能。然而，与低倍放大设备（如放大镜眼镜）相比，更高的放大倍数（例如显微镜）似乎并不能改善牙齿预备的性能。
现有证据支持使用放大镜可以提高修复后牙预备的性能。然而，高倍放大没有比低倍放大更有优势。
