激光联合氟钾酚醛树脂对牙本质小管封闭作用的实验研究

Abstract

Abstract: 【 abstract 】 objective: The sealing effect of dentin tubule and anti-brushing ability of different desensitization methods were observed by scanning electron microscope.evaluateing zhe effect of potassium fluoride resin desensitizer, laser and laser combined with potassium fluoride phenolic resin desensitizer.So that providing experimental basis and theoretical support for the clinical application of laser combined with fluoropotassium phenolic resin desensitizer.Methods: 48 caries free third molars were selected and prepared into 3mm*3mm*2.5mm dentin blocks.They were randomly divided into four groups according to different desensitization methods.Group A :control group; Group B :potassium fluoride phenolic resin desensitizer group; Group C :laser group; Group D : laser combined with fluoropolyphenolic resin desensitizer group. In group B/C/D, 6 samples were randomly selected as immediate group and the remaining 6 samples were selected as wear group for the brushing experiment. Half of the dentin specimens were randomly selected to be split in each group to observe the longitudinal profile. The surface closure of the dentinal tubules of the blank group and the test group was observed by scanning electron microscope.The morphological analysis was performed about the representative areas to observe the closure depth of dentin tubules in longitudinal profile. Using SPSS 24.0 analyze all date .Results: 1. Group B, group C and group D could effectively block the dentin surface （p ＜ 0.05）. 2. In pairwise comparison, there was no statistical difference in the depth of closure between the b/d groups（p ＞0.05）, however, both are deeper than group C（p ＜0.05）.3. After brushing tooth, The differences among the three groups in sealing dentin tubule orifice were significant（p ＜ 0.05）. group D was better than groupB and group C, groupB was better than group c （p ＜ 0.05）.4. After brushing tooth ,as the depth of longitudinal section ,group B and group D were deeper than group C （p ＜ 0.05）. Conclusion:1.Fluorine potassium phenolic resin desensitizer ,laser and the combination of laser and fluorine potassium phenolic resin desensitizer can effective seal dentin surface.2.The effect of the combination of laser and potassium fluoropotassium phenolic resin desensitizing on sealing dentinal tubules is better and more durable than that of desensitizing agent or laser alone. The depth of laser-closed dentinal tubules is small, and the ability of mechanical brushing is poor.

Key words: laser, Potassium fluoride phenolic resin desensitizer, Dentin hypersensitivity, SEM, dentinal tubules

References 15

[1]	中华口腔医学会牙本质敏感专家组，牙本质敏感的诊断和防治指南[J].中华口腔医学杂志，2009,44（3）：132-134.)。
[2]	Braennstroem M，Astroem A. A study on the mechanism of painelicited from the dentin ［J］. J Dent Res，1964，43（4）：619-625.
[3]	高德，李荣亮，李绍辉. 应用酚醛树脂液治疗牙本质敏感症自身对照疗效观察[J].口腔医学，2002 , 22（4）：206-207.
[4]	王芳，高德，牛晓阳. 3种脱敏剂治疗颌支托窝牙本质敏感症的临床观察[J]. 口腔材料器械杂志，2016,25（4）：221-224.
[5]	Renton-HarPer,P Midda,M.Nd:YAG laser treatment of dentinal hypersensitivity. .BritishDental Journal. 1992:172:13-16）
[6]	高德，牛晓阳，李荣亮，王芳. 含氟钾酚醛树脂脱敏剂的临床疗效[J]. 牙体牙髓牙周病学杂志，2014,24（6）：374.
[7]	Mordan NJ，Barber PM，Gillam DG. The dentine disc-a reviewof its applicability as a model for the in vitro testing of dentine hy?persensitivity［J］. J Oral Rehabil，1997，24（2）：148-156.
[8]	黄燕华，谢思静，葛久禹，等. 两种脱敏剂对牙本质小管封闭作用及其耐磨性研究[J].中国实用口腔科杂志，2014，7（3）：155-159.
[9]	Grossman L． A systematic method for the treatment of hypersen-sitive dentine［J］． J Am Dent Assoc，1935，22: 592 － 598．
[10]	Chu CH,Lo EC,Microhardness of dentine in primary teeth after topical fluoride applications[J]. J Dent , 2008,36(6):387-391.
[11]	Rizzante FA， Maenosono RM， Duarte MA， et al． In vitroevaluation of dentin hydraulic conductance after 980 nm diodelaser irradiation［J］． J Periodontol，2016，87( 3) : 320－326．
[12]	Gholami GA，Fekrazad Ｒ，Esmaiel-Nejad A，et al． An e-valuation of the occluding effects of Er; Cr: YSGG，Nd:YAG，CO2and diode lasers on dentinal tubules: A scanningelectron microscope in vitro study ［J］． Photomed LaserSurg，2011，29( 2) : 115 － 121．
[13]	Lee BS，Chang CW，Chen WP，et al． In vitro study of dentin hypersensitivity treated by Nd: YAG laser and bioglass［J］． DentMater J，2005，21: 511 － 519．
[14]	李向新，龚永庆，王统伍．半导体激光联合 MS－COAT 脱敏剂治疗牙本质过敏症的临床效果［J］．实用临床医学，2008，9( 11) : 82 － 84．
[15]	Camerlingo C，Lepore M，Gaeta GM，et al． Er: YAG laser treat-ments on dentine surface: micro－ Raman spectroscopy and SEManalysis［J］． J Dent，2004 JUL，32( 5) : 399 － 405．

Experimental study on the effect of laser combined with potassium fluoride-formaldehyde resin on closing dentinal tubules

Knowledge

Abstract

Cite this article

share this article

References 15

Related Articles 15

Recommended Articles

Metrics

Comments

[1]	. Research Progress of Relationship Between Periodontal Condition and Male Infertility [J]. , 2019, 39(8): 762-764.
[2]	. Efficacy observation of Er,Cr:YSGG laser with LLLT mode on treatment of erosive oral lichen planus [J]. , 2019, 39(2): 135-137.
[3]	. Research progress of effect of low-level laser therapy during orthodontic tooth movement [J]. , 2018, 38(8): 756-760.
[4]	. Effect of silicon coating via sol-gel self-assembling on the short-term bond strength of zirconia ceramic and resin [J]. , 2018, 38(7): 597-601.
[5]	. Efficacy observation of Nd:YAG and Er:YAG laser for the treatment of severe periodontitis [J]. , 2018, 38(6): 514-517.
[6]	. Antimicrobial effect of Nd:YAG laser and Er:YAG laser on enterococcus faecalis in root canals [J]. , 2018, 38(5): 417-421.
[7]	. Research progress on non-surgical therapy for severe periodontitis [J]. , 2018, 38(4): 358-363.
[8]	. Research progress of laser in the treatment of dentin hypersensitivity [J]. , 2018, 38(3): 277-280.
[9]	. Effects of diode laser on the treatment for chronic periodontitis patients with type 2 diabetes mellitus [J]. , 2018, 38(3): 237-240.
[10]	. Effect of Er:YAG laser on the treatment of peri-implantitis: A short-term clinical efficacy evaluation [J]. , 2018, 38(12): 1118-1121.
[11]	Guang Zheng HAN Zheng-Hui XIONG. Influence of ErCr:YSGG Laser Irradiation on adhesion of two adhesive systems to dentin [J]. , 2018, 38(10): 894-897.
[12]	. Application and research progress of laser on peri-implantitis [J]. , 2017, 37(2): 170-175.
[13]	. Clinical observation of 6 cases of gingival pigmentation treated with Er:YAG laser [J]. , 2017, 37(11): 1007-1010.
[14]	. The Progress of Laser Treatment of Dentin Hypersensitivity [J]. , 2017, 37(10): 929-931.
[15]	. The progression on the applications of common lasers in animal models for the endodontics [J]. , 2016, 36(9): 861-864.