Mohammed Ali AlBin-Ameer1, Mahdi Y Alsrheed1, Ibrahim A Aldukhi1, Asif Matin2, Soban Q Khan3, Reem Abualsaud4, Mohammed M Gad4. 1. Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31411, Saudi Arabia. 2. Centre for Research Excellence in Desalination & Water Treatment King Fahd University of Petroleum & Minerals, Dhahran, 31261, Saudi Arabia. 3. Department of Clinical Affairs, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31411, Saudi Arabia. 4. Department of Substitutive Dental Sciences, College of Dentistry, Imam Abdulrahman Bin Faisal University, P.O. Box 1982, Dammam, 31411, Saudi Arabia.
Abstract
PURPOSE: To evaluate the effect of protective coatings on the surface roughness, contact angle, and Candida albicans (C. albicans) adhesion to polymethyl methacrylate (PMMA) denture base materials. MATERIAL AND METHODS: A total of 560 rectangular heat- and autopolymerized acrylic resin specimens were fabricated and divided into 5 groups (n = 14/group) according to coating agent. Uncoated specimens were used as control. Coating materials were: nano-coat, Optiglaze, nano-silica, or cyanoacrylate. Surface roughness (Ra ) was evaluated using a profilometer. Contact angle measurements were performed using the sessile drop method. C. albicans adhesion was evaluated using direct culture and slide count methods. ANOVA and Tukey's post hoc tests were used for data analysis (α = 0.05). RESULTS: Nano-coat and Optiglaze coating of heat-polymerized acrylic significantly decreased Ra (p < 0.001). No significant effect was seen with nano-silica coating while Ra significantly increased with cyanoacrylate (p < 0.001). For autopolymerized acrylic, nano-coat, Optiglaze, and nano-silica coatings significantly decreased Ra in comparison to control group (p < 0.001) while no significant difference was seen between control and cyanoacrylate coating (p = 0.45). In comparison to control group, nano-coat, Optiglaze, and nano-silica coating for both denture base materials significantly decreased contact angle, and C. albicans adhesion (p < 0.001) while cyanoacrylate significantly increased C. albicans adhesion (p = 0.002) with no effect on contact angle for heat- (p = 1.00) and autopolymerized resins (p = 0.83). CONCLUSION: Coating of removable prosthesis with nano-coat, Optiglaze, or nano-silica is an effective method to reduce C. albicans adhesion.
PURPOSE: To evaluate the effect of protective coatings on the surface roughness, contact angle, and Candida albicans (C. albicans) adhesion to polymethyl methacrylate (PMMA) denture base materials. MATERIAL AND METHODS: A total of 560 rectangular heat- and autopolymerized acrylic resin specimens were fabricated and divided into 5 groups (n = 14/group) according to coating agent. Uncoated specimens were used as control. Coating materials were: nano-coat, Optiglaze, nano-silica, or cyanoacrylate. Surface roughness (Ra ) was evaluated using a profilometer. Contact angle measurements were performed using the sessile drop method. C. albicans adhesion was evaluated using direct culture and slide count methods. ANOVA and Tukey's post hoc tests were used for data analysis (α = 0.05). RESULTS: Nano-coat and Optiglaze coating of heat-polymerized acrylic significantly decreased Ra (p < 0.001). No significant effect was seen with nano-silica coating while Ra significantly increased with cyanoacrylate (p < 0.001). For autopolymerized acrylic, nano-coat, Optiglaze, and nano-silica coatings significantly decreased Ra in comparison to control group (p < 0.001) while no significant difference was seen between control and cyanoacrylate coating (p = 0.45). In comparison to control group, nano-coat, Optiglaze, and nano-silica coating for both denture base materials significantly decreased contact angle, and C. albicans adhesion (p < 0.001) while cyanoacrylate significantly increased C. albicans adhesion (p = 0.002) with no effect on contact angle for heat- (p = 1.00) and autopolymerized resins (p = 0.83). CONCLUSION: Coating of removable prosthesis with nano-coat, Optiglaze, or nano-silica is an effective method to reduce C. albicans adhesion.
Authors: Rodrigo Moreira Bringel da Costa; Rodrigo Lorenzi Poluha; Giancarlo De la Torre Canales; Joel Ferreira Santiago Junior; Paulo Cesar Rodrigues Conti; Karin Hermana Neppelenbroek; Vinicius Carvalho Porto Journal: Clin Oral Investig Date: 2020-09-24 Impact factor: 3.573
Authors: Mohammed M Gad; Hala A Bahgat; Mohamed F Edrees; Abdulkareem Alhumaidan; Soban Qadir Khan; Neveen M Ayad Journal: J Int Soc Prev Community Dent Date: 2022-01-29
Authors: Khalifa S Al-Khalifa; Mohammed M Gad; Faris A Alshahrani; Firas K Alqarawi; Faisal R Hassanein; Zohaib Khurshid; Khalid S Al-Abidi Journal: Int J Dent Date: 2022-05-04