Influence of Potassium Mixing Nano-Hydroxyapatite on the Denfin Bond Strength.

doi:10.13701/j.cnki.kqyxyj.2016.06.016

Abstract

Abstract: Objective: To observe the change of contact angle on dentine surface with the application of potassium mixing nano-hydroxyapatite, and evaluate the effect of potassium mixing nano-hydroxyapatite on the microleakage of Zinc polycarboxylate cements (ZPCC). Methods: The potassium mixing nano-hydroxy-apatite (K-nHA), nano-hydrxyapatite (nHA), and Gluma desensitizer (Gluma) were used on the prepared human molar teeth respectively. Changes of contact angle on the dentinal surface were observed. Pure titanium crowns were manufactured for each prepared teeth with the previous application of K-nHA, nHA, Gluma and cemented with ZPCC. Microleakage was measured by sliver-staining method and data were analyzed by SPSS17.0 statistics software. Results: The contact angle of K-nHA group was lower than those of other three groups and had a statistically difference between each other. Microleakage value(0.839±0.08)mm in K-nHA group was significantly lower than the blank group (0.966±0.09)mm. Microleakage of nHA group (0.920±0.11)mm and Gluma group (0.977±0.09)mm had no notable statistic difference when compared to the blank group. There was no notable statistic difference in microleakage between the K-nHA group and nHA group. Conclusion: K-nHA is a good hydrophilic materials and its contact angle on dentin surface is minimum. K-nHA has a better sealing function which can significantly reduce microleakage.

CLC Number:

R783.2

HONG Le-guan, GUO Li-ping, YIN Lu.. Influence of Potassium Mixing Nano-Hydroxyapatite on the Denfin Bond Strength.[J]. Journal of Oral Science Research, 2016, 32(6): 617-621.

References

[1] Suzuki S, Cox CF. White Pulpal response after complete crown preparation, dentinal sealing provisional restoration [J]. Quintessence Int,1994,25(7)∶477-485
[2] Ianzano J,Gwinnet AJ,Westbay G. Polymeric of dentinal tubules to control sensitivity [J]. Periodont ClinInvest,1993,15∶113-116
[3] Pashley EL, Comer RW, Simpson MD, et al. Dentin permeability:sealing the dentin in crown preparations [J]. Oper Dent, 1992, 17∶13-20
[4] Soeno K, Taira Y, Matsumura H, et al. Effect of desensitizers on bond strength of adhesive luting agents to dentin [J]. J Oral Rehabil,2001,28∶1122-1128
[5] 王浙君,撒悦,马霄.纳米羟基磷灰石的制备及其对牙本质小管封闭效果的初步观察[J].中华口腔医学杂志,2009,44(5)∶297-300
[6] 熊正慧,夏露,梅蕾,等.三种新型钙盐脱敏剂封闭牙本质小管的体外研究[J].中华口腔医学杂志,2011,46(4)∶214-217
[7] Markowitz K. The original desensitizers: strontium and potassium salts [J]. J Clin Dent, 2009, 20(5)∶145-151
[8] 张爱娟,王卫伟,李成峰.不同条件下碳酸羟基磷灰石的合成及吸附性能研究[J].硅酸盐通报,2012,31(6)∶1371-1375
[9] Camps J, Martin P, Ladeque P, et al. Influence of tooth cryopreservation on human dentin permeability, in vitro [J]. Dent Mater, 1994, 10(3)∶210-214
[10] 李成锋,雷志敏.腐蚀性脱敏剂Gluma对牙本质小管封闭效果的离体实验研究[J].口腔医学研究, 2014, 7(3)∶207-211
[11] Bergenholtz G, Cox CF.Bacferial leakage around dental restorations:Its effect on the dental pulp [J]. Journal of oral pathology, 1982, 11∶439-450
[12] Tjan AH, Dunn JR, Grant BE. Marginal leakage of cast gold crowns luted with an adhesive resin cement [J]. J Prosthet Dent, 1992, 67∶11-15
[13] Sobral MAP,Garone-Netto N,Luz MAAC, et al. Prevention of postoperative tooth sensitivity:a preliminary clinical trial [J]. J Oral Rehabil,2005,32∶661-668
[14] Craig RG, Powers JM. Restorative dental materials [M]. New York:Mosby Press, 2002∶241
[15] Satou J. Strptococcal adherence on var ious restorative mater rials [J]. J Dent Res, 1988, 67(3)∶588- 591
[16] Alliot LB , Jean A , Gregoire M. Comparative effect of calcium hydroxide and hydroxyapatite on the cellular activity of human pulp fibroblasts in vitro [J]. Archsor-alboil, 1994, 39(6) :481-89
[17] Tomie H ,Hiroshi O. Influence of particle size of calcium phosphate ceramics as a capping agent on the formation of a hard tissue barrier in amputates dental pulp [J]. J Endod, 1996, 22(6) :281-83
[18] Lilja J, Nordenvall K J, Branstrom M. Dentin sensitivity, odontoblasts and nerves under desiccated or infected experimental cavities. A clinical, light microscopic and ultrastructural investigation [J]. Swed Dent J,1982,6(3):93-103