Prodan Doina, Moldovan Marioara, Chisnoiu Andrea Maria, Saroși Codruța, Cuc Stanca, Filip Miuța, Gheorghe Georgiana Florentina, Chisnoiu Radu Marcel, Furtos Gabriel, Cojocaru Ileana, Delean Ada Gabriela, Cimpean Sanda Ileana
"Raluca Ripan" Institute for Research in Chemistry, Babes-Bolyai University, 30 Fantanele Street, 400294 Cluj-Napoca, Romania.
Department of Prosthodontics, "Iuliu Hațieganu" University of Medicine and Pharmacy, 32 Clinicilor Street, 400006 Cluj-Napoca, Romania.
Materials (Basel). 2022 Jan 21;15(3):803. doi: 10.3390/ma15030803.
The aim of the present study was to obtain experimental infiltration materials, intended for the treatment of dental white spots, and to investigate them. Two series of infiltrants (P1-P6)/(P1F-P6F) were obtained, based on different monomer mixtures, without/with glass filler (with fluoride release ability). Each infiltrant from the second series contained the same amount of glass powder, and each infiltrant from the (P-PF) group contained the same resin composition. The characteristics of the experimental infiltrants were investigated by degree of conversion (DC), mechanical strength, water sorption (WS), and fluoride release, in addition to residual monomer for (P1F-P6F) infiltrants. The results were compared with those obtained for commercial Icon infiltrant. For the experimental infiltrants, without/with filler, the recorded DC was in the range of 58.27-89.70%/60.62-89.99%, compared with Icon (46.94%) 24 h after polymerization. The release of fluoride depends on the permeability of the polymer matrix, with respect to the water sorption, which may help to diffuse ions in the storage medium but which can also influence the release of residual monomers. The highest flexural strengths were recorded for the (TEGDMA/HEMA/Bis-GMA) infiltrants (133.94 ± 16.389 MPa/146.31 ± 7.032 MPa). The best experimental infiltrants were P2 and P2F (Bis-GMA/HEMA/TEGDMA).
本研究的目的是获取用于治疗牙齿白斑的实验性渗透材料并对其进行研究。基于不同的单体混合物，制备了两组渗透剂（P1 - P6）/（P1F - P6F），分别不含/含有玻璃填料（具有氟释放能力）。第二组中的每种渗透剂含有相同量的玻璃粉，（P - PF）组中的每种渗透剂含有相同的树脂成分。除了对（P1F - P6F）渗透剂的残留单体进行研究外，还通过转化率（DC）、机械强度、吸水率（WS）和氟释放来研究实验性渗透剂的特性。将结果与市售Icon渗透剂的结果进行比较。对于不含/含填料的实验性渗透剂，聚合24小时后记录的DC范围为58.27 - 89.70%/60.62 - 89.99%，相比之下Icon为46.94%。氟的释放取决于聚合物基质相对于吸水率的渗透性，这可能有助于储存介质中的离子扩散，但也可能影响残留单体的释放。（TEGDMA/HEMA/Bis - GMA）渗透剂的弯曲强度最高（133.94±16.389 MPa/146.31±7.032 MPa）。最佳的实验性渗透剂是P2和P2F（Bis - GMA/HEMA/TEGDMA）。
