Goenka Shachi, Cirigiri Sushil Kumar, Poplai Kanika, Aslam Baig Mirza, Singh Shalini, Gangavane Shweta
Department of Conservative Dentistry and Endodontics, Dr. H.S.R.S.M Dental College and Hospital, Hingoli, Maharashtra, India.
Department of Conservative Dentistry and Endodontics, Aditya Dental College, Beed, Maharashtra, India.
J Pharm Bioallied Sci. 2021 Nov;13(Suppl 2):S1478-S1482. doi: 10.4103/jpbs.jpbs_262_21. Epub 2021 Nov 10.
Shade of the teeth is of specific significance to the patient because of social and psychological concern and hence plays vital role as primary care. Bleaching is a noninvasive, relatively inexpensive, conservative, and low-maintenance method to change a smile dramatically.
To study the effect of application of three bleaching agents at different wavelengths of laser on the enamel surface of teeth using an environmental scanning electron microscopy (ESEM).
One hundred and twenty freshly extracted, noncarious intact maxillary central incisors were collected and stored in moist conditions in plastic containers. Using a randomized stratified design, the samples were divided into 12 groups ( = 10). The bleaching agent was mixed according to the manufacturer's instructions and applied on the enamel surface of the teeth followed by laser activation. The ultrastructural effects of the bleaching agent on the enamel were determined with an ESEM. Samples were assessed both before and after bleaching on the basis of the degree of surface damage. Because the observation by ESEM was designed to be qualitative, no statistical analysis was performed.
JW power bleaching agent and Opalescence Xtra boost showed minimum surface alteration when compared to Polaoffice. Furthermore, the groups treated with diode 810 nm showed less surface damage while neodymium-doped yttrium aluminum garnet 1064 nm more surface alterations than the groups treated with diodes.
From this current study, it can be concluded that the diode laser of 810 nm with JW power bleaching showed minimum surface alterations.
由于社会和心理方面的因素，牙齿的色泽对患者具有特殊意义，因此在初级护理中起着至关重要的作用。牙齿美白是一种无创、相对廉价、保守且维护成本低的方法，能显著改变笑容。
使用环境扫描电子显微镜（ESEM）研究三种不同波长激光的美白剂对牙齿釉质表面的影响。
收集120颗新鲜拔除的、无龋坏的完整上颌中切牙，置于塑料容器中在潮湿条件下保存。采用随机分层设计，将样本分为12组（每组n = 10）。按照制造商说明混合美白剂，涂于牙齿釉质表面，随后进行激光照射。用ESEM确定美白剂对釉质的超微结构影响。根据表面损伤程度在美白前后对样本进行评估。由于ESEM观察旨在定性，未进行统计分析。
与Polaoffice相比，JW power美白剂和Opalescence Xtra boost显示出最小的表面改变。此外，与使用二极管激光治疗的组相比，810 nm二极管治疗的组表面损伤较小，而掺钕钇铝石榴石1064 nm治疗的组表面改变更多。
从当前研究可以得出结论，810 nm二极管激光联合JW power美白剂显示出最小的表面改变。
