A comparative study on the mechanical properties of flexible denture materials containing different fluoride concentrations

doi:10.3969/j.issn.2095-4344.2017.30.009

Abstract

Abstract:

BACKGROUND: Long-term use of flexible denture prosthesis will increase the incidence of caries and periodontal disease, and partial denture stomatitis. The addition of fluoride in the prosthesis material can prevent and reduce the incidence of these diseases. Currently, increasing research addresses the addition of fluoride into dental materials at home and abroad, but little is reported on the addition of sodium monofluorophosphate (Na₂(PO₃)F into flexible denture materials and on the relevant mechanical performance.

OBJECTIVE: To evaluate the mechanical properties of flexible denture materials containing different fluoride concentrations.

METHODS: Totally 180 elastic denture samples were made at the three different sizes of 80 mm×51 mm×1 mm (n=60), 20 mm×5 mm×5 mm (n=60), 25 mm×2 mm×2 mm (n=60). Then, elastic denture samples containing Na₂(PO₃)F 0 (control), 3%, 5%, 10%, 15%, 20% were prepared in each size groups. The tensile strength, flexural strength and Shore A hardness of the samples were tested.

RESULTS AND CONCLUSION: When the mass ratio of fluoride was up to 10%, the tensile strength and flexural strength reduced a little (P > 0.05). When the mass ratio of fluoride was up to 15%, the tensile strength and flexural strength were significantly lower than those of non-fluoride samples (P < 0.05). When the mass ratio of fluoride was up to 20%, the tensile strength, flexural strength and Shore A hardness were significantly lower than those of non-fluoride samples (P < 0.05). To conclude, Na₂(PO₃)F content has a significant effect on the tensile strength, flexural strength and Shore A hardness, and 10% is the best proportion of Na₂(PO₃)F. The mechanical properties of fluoride-containing flexible denture materials will be changed if the mass ratio of fluoride is higher than 10%.

中国组织工程研究杂志出版内容重点：生物材料；骨生物材料; 口腔生物材料; 纳米材料; 缓释材料; 材料相容性；组织工程

Key words: Dentures, Fluorides, Tissue Engineering

CLC Number:

R318

Tang Zhen-yu, Zhang Zhe, Zhang Wei-yi.

A comparative study on the mechanical properties of flexible denture materials containing different fluoride concentrations

[J]. Chinese Journal of Tissue Engineering Research, 2017, 21(30): 4805-4810.

Figures/Tables 2

References

[1]胡征,罗志红.3种义齿基托材料抛光后表面粗糙度的比较研究[J].口腔材料器械杂志,2014,23(3)):151-153.

[2]Karakis D,Akay C,Oncul B,et al.Effectiveness of disinfectants on the adherence of Candida albicans to denture base resins with different surface textures.J Oral Sci.2016;58(3):431-437.

[3]Mirizadeh A,Atai M,Ebrahimi S.Fabrication of denture base materials with antimicrobial properties. J Prosthet Dent. 2017; 26(3):35.

[4]Shah J,Bulbule N,Kulkarni S,et al.Comparative evaluation of sorption, solubility and microhardness of heat cure polymethylmethacrylate denture base resin & flexible denture base resin.J Clin Diagn Res.2014;8(8):ZF01-04.

[5]Hill EE,Rubel B,Smith JB,et al.Flexible removable partial dentures: a basic overview.Gen Dent. 2014;62(2):32-36.

[6]赵献银.弹性义齿对基牙牙周牙体组织健康影响的研究[J].口腔颌面修复学杂志,2011,12(2):100.

[7]胡征,罗志红.3 种义齿基托材料抛光后表面粗糙度的比较研究[J].口腔材料器械杂志,2014,23(3):151-153.

[8]徐晶,张翔,陈小冬,等.不同磨光方法对弹性义齿基托表面粗糙度影响的实验研究[J].口腔医学研究,2012,28(7):689-693.

[9]崔嘉玺,谭力芯,熊宇,等.应力中断式附着体义齿修复下颌双侧游离端缺失的生物力学分析[J].中国美容医学,2017,26(3):25-28.

[10]孙静华,李仪红,侯本祥.龋病和牙周病主要致病菌分布的影响因素[J].北京口腔医学,2017,25(3):156-165.

[11]李雅冬,李奕,彭方毅,等.重庆市老年人口腔健康现状及影响因素分析[J].重庆医学2016,45(31):4399-4401.

[12]Bataineh M,Malinowski M,Duggal MS,et al.Comparison of the Newer Preventive Therapies on Remineralisation of Enamel in vitro.J Dent.2017.pii: S0300-5712(17)30209-9. doi: 10.1016/j.jdent.2017.08.013. [Epub ahead of print]

[13]Sivapriya E,Sridevi K,Periasamy R,et al.Remineralization ability of sodium fluoride on the microhardness of enamel, dentin, and dentinoenamel junction: An <i>in vitro</i> study. J Conserv Dent. 2017;20(2):100-104.

[14]Muñoz-Millán P,Zaror C,Espinoza-Espinoza G,et al. Effectiveness of fluoride varnish in preventing early childhood caries in rural areas without access to fluoridated drinking water: A randomized control trial.Community Dent Oral Epidemiol. 2017.doi: 10.1111/cdoe.12330. [Epub ahead of print]

[15]Aslanimehr M,Rezvani S,Mahmoudi A,et al.Comparison of Candida Albicans Adherence to Conventional Acrylic Denture Base Materials and Injection Molding Acrylic Materials.J Dent (Shiraz). 2017;18(1):61-64.

[16]Rodríguez Acosta EJ,da Silva PM,Jacobina M,et al.Candida albicans adherence to denture base material: chemical disinfection and the effect of acquired salivary pellicle formation.J Prosthodont.2015;24(3):200-206.

[17]Pignatelli I,Kumar A,Shah K,et al.Vertical scanning interferometry: A new method to quantify re-/de-mineralization dynamics of dental enamel.Dent Mater.2016;32(10):e251-261

[18]Tiveron AR,Delbem AC,Gaban G,et al.In vitro enamel remineralization capacity of composite resins containing sodium trimetaphosphate and fluoride.Clin Oral Investig. 2015; 19(8):1899-1904.

[19]Braun PA,Widmer-Racich K,Sevick C,et al.Effectiveness on Early Childhood Caries of an Oral Health Promotion Program for Medical Providers.Am J Public Health. 2017;107(S1): S97-S103.

[20]Parkinson CR,Siddiqi M,Mason S,et al.In Situ Study to Confirm the Anticaries Potential of a Sodium Monofluorophosphate Dentifrice Containing Calcium Sodium Phosphosilicate.J Clin Dent. 2017;28(2):27-31.

[21]Young S,Sufi F,Siddiqi M,et al.A Randomized Non-Inferiority Clinical Study to Evaluate the Efficacy of Two Dentifrices for Dentin Hypersensitivity.J Clin Dent.2016;27(4):97-104.

[22]Parkinson CR,Siddiqi M,Mason S,et al.Anticaries Potential of a Sodium Monofluorophosphate Dentifrice Containing Calcium Sodium Phosphosilicate: Exploratory in situ Randomized Trial.Caries Res. 2017;51(2):170-178.

[23]O'Mullane DM,Baez RJ,Jones S,et al.Fluoride and Oral Health.Community Dent Health. 2016;33(2):69-99.

[24]Guissouma W,Hakami O,Al-Rajab AJ,et al.Risk assessment of fluoride exposure in drinking water of Tunisia. Chemosphere. 2017;177:102-108.

[25]Takahashi T,Gonda T,Mizuno Y,et al.Reinforcement in removable prosthodontics: a literature review. J Oral Rehabil. 2017;44(2):133-143

[26]Saisadan D,Manimaran P,Meenapriya PK.In vitro comparative evaluation of mechanical properties of temporary restorative materials used in fixed partial denture.J Pharm Bioallied Sci.2016;8(S 1):S105-S109.

[27]Kapoor S,Prabhu N,Balakrishnan D.Comparison of the effect of different surface treatments on the bond strength of different cements with nickel chromium metal alloy: An in vitro study.J Clin Exp Dent. 2017;9(7):e912-e918.

[28]Stawarczyk B,Silla M,Roos M,et al.Bonding Behaviour of Polyetherketoneketone to Methylmethacrylate- and Dimethacrylate-based Polymers.J Adhes Dent. 2017;8(28): 1-8.

[29]Dias ARC,Barceleiro MO,Dias KRHC,et al.Influence of custom adaptation on the characteristics of fiber posts.Gen Dent.2017;65(5):e17-e22.

[30]Sousa-Lima RX,Silva L,Chaves L,et al.Extensive Assessment of the Physical,Mechanical, and Adhesion Behavior of a Low-viscosity Bulk Fill Composite and a Traditional Resin Composite in Tooth Cavities.Oper Dent. 2017;42(5): E159-E166.

[31]Tanimoto H,Akiba N,Nakamura T,et al.An objective estimation of the removability of three home reliners.Dent Mater J. 2017;36(3):309-318.

[32]Mutluay MM,Tezvergil-Mutluay A.The influence of cyclic stress on surface properties of soft liners. Odontology. 2017;105(2):214-221.

[33]Urban VM,Lima TF,Bueno MG,et al.Effect of the addition of antimicrobial agents on Shore A hardness and roughness of soft lining materials.J Prosthodont.2015;24(3):207-214.

[34]唐震宇,张伟一,王海,等.含氟弹性义齿材料耐老化性能的研究[J].口腔医学研究,2013,29(4):305-307.

[35]Archadian N,Kawano F,Ohguri T,et al.Flexural strength of rebased denture polymers.J Oral Rehabil. 2000;27(8): 690-696.

[36]Sasaki H,Hamanaka I,Takahashi Y,et al.Effect of long-term water immersion or thermal shock on mechanical properties of high-impact acrylic denture base resins.Dent Mater J. 2016;35(2):204-209.

[37]Sekinishi T,Inukai S,Murakami N,et al.Influence of denture tooth thickness on fracture mode of thin acrylic resin bases: An experimental and finite element analysis.J Prosthet Dent. 2015;114(1):122-129.

[38]Kawaguchi T,Lassila LV,Sasaki H,et al.Effect of heat treatment of polymethyl methacrylate powder on mechanical properties of denturebase resin.J Mech Behav Biomed Mater. 2014;39:73-78.

[39]Hamanaka I,Iwamoto M,Lassila L,et al.Influence of water sorption on mechanical properties of injection-molded thermoplastic denturebase resins.Acta Odontol Scand. 2014;72(8):859-865.

[40]Kaplan P. Flexible partial denture variations. The use of circumferential, combination, and continuous clasp designs. Dent Today. 2012;31(10):138-141.

[41]Singh JP, Dhiman RK, Bedi RP, et al. Flexible denture base material: A viable alternative to conventional acrylic denture base material. Contemp Clin Dent. 2011;2(4):313-317.

[42]Polyzois G, Lagouvardos P, Kranjcic J, et al. Flexible Removable Partial Denture Prosthesis: A Survey of Dentists' Attitudes and Knowledge in Greece and Croatia. Acta Stomatol Croat. 2015;49(4):316-324.

[43]Shah VR, Shah DN, Chauhan CJ, et al. Evaluation of flexural strength and color stability of different denture base materials includingflexible material after using different denture cleansers. J Indian Prosthodont Soc. 2015;15(4):367-373.

[44]Takahashi T, Gonda T, Mizuno Y, et al. Reinforcement in removable prosthodontics: a literature review. J Oral Rehabil. 2017;44(2):133-143.

[45]Hill EE, Rubel B, Smith JB. Flexible removable partial dentures: a basic overview. Gen Dent. 2014;62(2):32-36.

[46]Iwata Y. Assessment of clasp design and flexural properties of acrylic denture base materials for use in non-metal clasp dentures. J Prosthodont Res. 2016;60(2):114-122.

[47]Zhou Z,Hu YD,Sui QS,et al.Application of valplast dentures in the temporary restoration of single missing anterior tooth.Zhongguo Yi Xue Ke Xue Yuan Xue Bao. 2011;33(3): 334-336.

[48]Falland-Cheung L,Waddell JN,Chun Li K,et al.Investigation of the elastic modulus, tensile and flexural strength of five skull simulant materials for impact testing of a forensic skin/skull/brain model.J Mech Behav Biomed Mater. 2017;68: 303-307.

[49]Sasaki H,Hamanaka I,Takahashi Y,et al.Effect of long-term water immersion or thermal shock on mechanical properties of high-impact acrylic denture base resins.Dent Mater J. 2016;35(2):204-209.