Studying the properties of heat cure acrylic resin after reinforced with polyamide fibers treated with plasma (oxygen gas)

Raghdaa. K. Jassim


Background: In prosthodontic dentistry, Heat cure acrylic resin is the most popular denture base material. This
material still requires different methods of reinforcement .One of which can be the addition of different kind
of fibers. This study aimed to investigate the effects of different concentrations of plasma treated polyamide
fibers on some properties of heat cure acrylic resin.
Materials and methods: All specimens were prepared from heat cure acrylic resin. plasma treated polyamide fibers were added in
different concentration as follow (0% no fibers control, 2%, 5% &7%).These fibers were treated with a plasma oxygen gas for two
times 5min and 10 min .The properties of these specimens were evaluated through the following test: Transverse strength, Impact
strength, Indentation hardness and surface roughness. Statistical analysis of data was done using ANOVA test.
Results: In heat cure acrylic specimens reinforced with plasma treated polyamide fiber for 10 min , the highest mean values of
Transverse strength and Impact strength (78.5+3.100)Mpa,( 7.821+0.763)KJ/m2 respectively. These results observed in specimens
contain (5%) of fiber. Also, the effect of polyamide fiber treated with oxygen gas for 5 min increases transverse strength and impact
strength. ANOVA test results revealed a non-significance difference among groups of specimens for indentation test only.
Conclusions: Within the limitation of this study ,it can be concluded that 2%&5% of plasma treated polyamide fiber results in improvement
in transverse strength, impact strength and surface roughness. While for Indentation hardness test, a statistically non
significance difference was observed among all groups of specimens.


Acrylic resin, polyamide, plasma, oxygen gas.

Full Text:



Sakaguchi R.L, Powers J.M. and contributors. Graig’s

Restorative Dental Materials. 13th ed. Elsevier: Mosby;

: pp191.

Vallitu P.K., Review of fiber reinforced denture base resins

J.Prosthet.Dent.1996:5, 4,270-76.

Vallitu P K. Review of methods used to reinforce

PMMAresin.J.Prosthet.Dent1995 4(3)183-187.

Mathew M, Shenoy K, Ravishankar KS Flexural Strength

of E-glass-reinforced PMMA. Int, J Experiment Dent Sci

; 3(1):24-28.

Yazadanie N and Mahood M, Carbon fiber acrylic resin

composite an investigation of transverse strength ,J prosth.


Berrong J, M, Weed R, M, Yong J, M: Fracture resistance

of Kevlar-reinforced poly methylmethacerylate resin: a

preliminary study .Int. J Prosthodontic.1990; 3:391-5.

Gutterride DL. The effect of including ultra-high modulus

polyethylene fiber on the impact strength of acrylic resin.

Brt. Dent J.1988:164:77-80. IVSL

Vuorinen AM and Vallitu PK rigid rod polymer fillers in

acrylic denture adhesive resin system university of Turki

thesis 2010

Prasad H, Kalavathy, Mohammed H, S Effect of glass fiber

and silane treated glass fiber reinforcement on impact

strength of maxillary complete denture. Annals and

Essences of Dentistry V III :”( 4) 2011, pp.7-11.

Yun S,H Cho D, ., Kim J, Lim S Lee G, Park M, Lee

S Effect of silane coupling agents with different organofunctional

groups on the interfacial shear strength of glass

fiber/Nylon 6 composites. J Materials Science Letters;

, 22 Issue 22, p1591.

Allia Kb and Raghdaa KJ The effect of plasma on transverse

strength, surface roughness and Candida adhesion of two

types of acrylic denture base materials (Heat cure and light

cure) J .Bagh College Dent 2012, 24(2), 10-17.

Mohammed WI and Ismail I J The effect of addition of

untreated and oxygen plasma treated polypropylene fibers

on some properties of heat cured acrylic resin ) J .Bagh

College Dent .2013 25,4,33-38.

Mawada TK, Dange SP, Thakre MB, Kamble VD. The

effect of fiber reinforcement of impact strength of heat

PMMA denture base resin: Invitro study &SEM analysis

J.adv.Prosthet dent.2012:4(4)30-36.

John J, Gangadhar SA, Shah I: Flexural strength of heat

Polymethylmethacrylate resin reinforced with glass,

armide, or nylon fiber. J Prosth. Dent2001; 86: 424-427).

Soygeun K, Bolayir G, Boztug A, Mechanical and thermal

properties of polyamide versus reinforced PMMA denture

base material. J.adv.Prosthodont 2013:5(2),153-160 IVSL

American Dental Association specification ,Guide to dental

materials and devices, 7th ed., Chicago Illinois.1975

ISO 179-1 (2000) international organization for


American Dental Association Specification No.12; 1999

for denture base polymers Chicago. Council on dental

materials and devices.

Anusavice K.J. (2008): “Philips science of dental material”.

th Ed, Middle East and African edition, Ch7, Ch22, p:


AnKohil S & Bhatia S. Polyamide in dentistry.Int.J scientific

study.2013, 1, 1, 20-25.

Lewin M, Handbook of fiber chemistry, Taylor &Francis

group UK 3rd ed.2007.

Unalan F, Dikbas I, Gurbuz O. Transverse strength of

Polymethylmethacrylate reinforced with different forms

and concentrations of E-Glass fibers. OHDMBSC 2010;

IX, (3) PP 144-7.

Kamble VD, Porkhedkar RD, Mowade TK. The effect

of different fiber reinforcement on flexural strength of

provisional and restorative resin: an in-vitro study. J Adv

Prosthodont 2012; 4(1): 1-6.

Al- Momen MM. Effect of reinforcement on strength and

radiopacity of acrylic denture base material. A master

thesis, Department of Prosthodontics, University of

Baghdad, 2000.

Marei MK. Reinforcement of denture base resin with glass

filler. J Prosthodont1999; 8: 1, 18-26.

Chen SY, Liang WM, Yen PS. Reinforcement of acrylic

denture base resin by incorporation of various fibers J

Biomed Mater Res 2001;58:2038.



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