Di Petto Lorenza Francesca, Tetè Giulia, Hera Mara, Polizzi Elisabetta
Center for Oral Hygiene and Prevention, IRCCS San Raffaele Hospital, Vita-Salute University, 20132 Milan, Italy.
Department of Dentistry, IRCCS San Raffaele Hospital, Dental School, Vita-Salute San Raffaele University, 20132 Milan, Italy.
Materials (Basel). 2023 Feb 6;16(4):1373. doi: 10.3390/ma16041373.
The aim of this in vitro study is to try to identify a treatment in the field of professional oral hygiene techniques that is ideal and less invasive with regard to prosthetic restorations, chosen in lithium disilicate and feldspar ceramics. Seventeen veneers were prepared (eight in lithium disilicate and nine in feldspar ceramic) and each of them was attached to an extracted tooth. The treatment groups were initially contaminated in the Microbiology Laboratory of Università Vita-Salute San Raffaele. After 24 h they were treated with four different methods of professional oral hygiene and were then sent to the Microscopy Laboratory, in which they were analysed by SEM, with 180X, 250X, and 500X magnification, to assess any damage caused to the treated surfaces. The SEM analysis produced 64 images that were evaluated by an experienced dentist, and the use of the prophetic cup seemed to be the most suitable among the evaluated treatments. However, from a microbiological point of view, this method was the least effective in terms of reducing bacterial growth. In this regard, the use of a prophylactic rubber cup combined with a 0.20% chlorhexidine gel is recommended during professional oral hygiene sessions for the maintenance of aesthetic prosthetic restorations.
本体外研究的目的是尝试在专业口腔卫生技术领域确定一种理想的治疗方法，该方法对选用二硅酸锂和长石陶瓷制作的修复体侵入性较小。制备了17个贴面（8个二硅酸锂贴面和9个长石陶瓷贴面），每个贴面都附着在一颗拔除的牙齿上。治疗组最初在圣拉斐尔生命健康大学微生物实验室进行污染处理。24小时后，用四种不同的专业口腔卫生方法对其进行处理，然后送至显微镜实验室，在该实验室中通过扫描电子显微镜（SEM）以180倍、250倍和500倍放大倍数对其进行分析，以评估处理过的表面所造成的任何损伤。扫描电子显微镜分析产生了64张图像，由一位经验丰富的牙医进行评估，在所评估的治疗方法中，使用抛光杯似乎是最合适的。然而，从微生物学角度来看，这种方法在减少细菌生长方面效果最差。在这方面，建议在专业口腔卫生护理期间使用预防性橡胶杯并结合0.20%氯己定凝胶，以维护美观的修复体。
