EFFECTOFSIWAK EXTRACTSON THE  HARDNESSPROPERTY OF VINYL ADDITION CURED SILICONE MAXILLOFACIAL  PROSTHETIC MATERIAL

ASSIT. PROF.  NADIA TAWFIQ  JAFFER

doi:10.26682/sjuod.2020.22.1.6

ASSIT. PROF. NADIA TAWFIQ JAFFER Dept. of Conservative and Prosthodontics, College of Dentistry, University of Duhok, Kurdistan Region-Iraq

DOI: https://doi.org/10.26682/sjuod.2020.22.1.6

Keywords: Hardness:, maxillofacial elastomer:, disinfection:, Siwak extracts:

Abstract

Aims: The study aims to evaluate the hardness of the vinyl addition silicone maxillofacial material under the influence of disinfection and immersion time.

Materials and Methods: 40 samples of (20*15*3.5)mm were fabricated from the maxillofacial elastomer and divided into 4 groups of disinfection solutions (three concentrations of siwak extract: 1% , 2% and 5%), and Chlorehexidine was used as a commercial disinfectant , each group was subdivided into 2 immersion periods (15 and 30 hours), the hardness of the samples was measured before immersion and considered as self control and also the hardness was measured at the end of each immersion period by the use of Shore-A durometer.

Results: A significant difference was observed in hardness means after immersion and also there were significant differences between groups of disinfection in which siwak extract 1% observed the least value and chlorehexidine the highest one.

Conclusions: long immersion period 30 hours increased the hardness of the maxillofacial elastomer more than the shorter period 15 hours and the disinfection with the extracts of Siwakwere better than chlorhexidine when the hardness is the factor.

Downloads

Download data is not yet available.

References

1-Kiat-amnuay S, Johnston DA, Powers JM, Jacob RF. (2005). Color stability of dry earth pigmented maxillofacial siliconeA-2186 subjected to microwave energy exposure. J Prosthodont, 14: 91-6.
2-Guiotti AM, Goiato MC, dos Santos DM.(2010). Evaluation of the shore A hardness of silicone for facial prosthesis as to the effect of storage period and chemical disinfection. J CraniofacSug, 21 (2): 323-7.
3- Mancuso DN, Goiato MC, Santos DM. (2009). Color stability after accelerated aging of two silicones, pigmented or not, for use in facial prostheses. Braz Oral Res, 23 (2): 144-8.
4- Goiato MC, Pesqueira AA, Santos DM, Dekon SF. (2009). Evaluation of hardness and surface roughness of two maxillofacial silicones following disinfection. Braz Oral Rese, 23 (1): 49-53.
5-Goiato MC, Pesqueira AA, Ramos da Silva C, Gennari-Filho H, Micheline dos Santos D. (2009). Patient satisfaction with maxillofacial prosthesis: literature review. J PlastReconstrAesthet Surg, 62 (2): 175-80.
6-Hatamleh MM, Polyzois GL, Silikas N, Watts DC. (2011). Effect of extra oral aging conditions on mechanical properties of maxillofacial silicone elastomer. J Prosthodont, 20: 439-46.
7- Eleni PN, Krokida MK, Polyzois GL, Gettleman L. (2013). Effect of different disinfecting procedures on the hardness and color stability of two maxillofacial elastomers overtime. J App Oral Sci, 21 (3): 278-283.
8- Al-Otaibi MB. (2004). The miswak (chewing gum) and oral health. Studies on oral hygiene practices of urban Saudi Arabians. Swed Dent J Suppl, 167: 2-75.
9-Sofrata A. (2010). SalvadoraPersica (miswak) Karolinska institute; Stockholm, Sweden. Master Degree thesis.
10- Al-Nidawi A, El-Sammarai S, Al-Taai T. (2010). Effect of siwak extracts on salivary Mutans Streptococci and Streptococci among a group of volunteers in comparison to other antimicrobial agents. Iraqi Dent J, 18 (1): 9-12.
11-Hatim NA, Al-Jammal AY. (2013). Effect of salvadorapersica extracts on Titanium alloy surface topography. Journal of Oral and Dental Research,1(1):29-39.
12- Ferreira M, Pereira-Cenci T, Rodrigues de Vasconcelos L. Rodrigues-Garcia R, Del BelCury AA. (2009). Efficacy of denture cleansers on denture liners contaminated with Candida Species. Clin Oral Investig, 13: 237-42.
13- Lewis DH, Castleberry DJ.(1980). An assessment of recent advances in external maxillofacial materials. J Prosthet Dent,43:426-32.
14-Mancso DN, Goiato MC, Zuccolotti BC, Moreno A, dos Santos DM. (2009). Evaluation of hardness and color change of soft liners after accelerated aging. Prim Dent Care,16(3):127-30.
15-Darowt I, Christy A, Skaug N, Egeberg P. (2000). Identification and quantification of some potentially antimicrobial anionic components in miswak extract. Ind J Pharmacol, 32:11-4.
16-Goiato MC, Haddad MF, dos Santos DM, Pesqueira AA, Moreno A. (2010). Hardness evaluation of prosthetic silicones containing opacifiers following chemical disinfection and accelerated aging. Braz Oral Res,24(3):303-8.
17-Goiato MC, Pesqueira AA, Santos DM, ZavanelliAC,Ribeiro PP. (2009). Color stability comparison of silicone facial prostheses following disinfection. J Prosthodont,18: 242-4.
18-Pesqueira AA, Goiato MC, Santos DM, Haddad MF, Ribeiro PP, CoelhoSinhoreti MA. (2011). Effect of disinfection and accelerated aging on color stability of colorless and pigmented facial silicone. J Prosthodont, 20: 305-9.