Abdulrahman A Balhaddad, Faisal Alharamlah, Alhanoof Aldossary, Wejdan Almutairi, Turki Alshehri, Mary Anne S Melo, Afnan O Al-Zain, Eman H Ismail
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引用次数: 0
摘要
本研究探讨了牙科用刷子涂抹或不涂抹偏丙烯酸酯类造型树脂对树脂基复合材料的长期颜色稳定性和表面形貌的影响。本研究考察了两个变量的影响:(1) 所用牙刷的类型(艺术牙刷、微型牙刷或聚酯条);(2) 所用造型树脂(涂抹或不涂抹)。试样通过 10,000 次热循环进行人工老化,然后在咖啡中浸泡 30 天。使用非接触式轮廓仪测量表面粗糙度,使用分光光度计测量颜色,分别在基线和老化后测量颜色和表面粗糙度。数据分析采用配对 t 检验和单因素方差分析。与其他组相比,用牙刷或不含造型树脂的微型刷磨平的树脂基复合材料的颜色变化(ΔE)较低。配对 t 检验显示,每种表面处理技术在老化前后的平均表面粗糙度 (Ra) 和谷深 (Rv) 都存在显著差异(p ⩽0.01)。对照组和微刷组的轮廓高度均方根平均值(Rq)明显增加(p ⩽0.01)。总之,在树脂基复合材料铺放过程中使用刷子不会增加染色的敏感性。相反,树脂模型的加入会随着时间的推移而导致褪色。
Impact of combining dental composite brushes with modeling resins on the color stability and topographic features of composites.
This study explores the effect of using dental brushes with or without metacrylate-based modeling resins on long-term color stability and surface topographies of resin-based composites. This study examined the effects of two variables: (1) the type of brush used (Art brush, Micro-brush, or Mylar strip) and (2) the application of a modeling resin (applied or not applied). The specimens were artificially aged through 10,000 cycles of thermocycling and subsequently immersed in coffee for 30 days. Measurements of color and surface roughness were taken at baseline and after the aging, using a non-contact profilometer for surface roughness and a spectrophotometer for color. Data were analyzed using paired t-tests and one-way ANOVA. Resin-based composites smoothed with dental brushes or micro brushes without modeling resins exhibited lower color change (ΔE) than other groups. Paired t-tests revealed significant differences in average surface roughness (Ra) and valley depth (Rv) for each surfacing technique before and after aging (p ⩽ 0.01). The root means square average of the profile heights (Rq) significantly increased in the control and micro-brush groups (p ⩽ 0.01). In conclusion, the use of brushes in resin-based composites placement does not increase the susceptibility to staining. Instead, the inclusion of resin modeling contributes to discoloration over time.
期刊介绍:
The Journal of Applied Biomaterials & Functional Materials (JABFM) is an open access, peer-reviewed, international journal considering the publication of original contributions, reviews and editorials dealing with clinical and laboratory investigations in the fast growing field of biomaterial sciences and functional materials.
The areas covered by the journal will include:
• Biomaterials / Materials for biomedical applications
• Functional materials
• Hybrid and composite materials
• Soft materials
• Hydrogels
• Nanomaterials
• Gene delivery
• Nonodevices
• Metamaterials
• Active coatings
• Surface functionalization
• Tissue engineering
• Cell delivery/cell encapsulation systems
• 3D printing materials
• Material characterization
• Biomechanics