Surface roughness analysis of prepolymerized CAD/CAM dental acrylic resins following combined surface treatments

• Autorzy: Alfouzan Afnan , Alnouwaisar Alhanouf , Alazzam Njood , Al-Otaibi Hanan , Labban Nawaf , Alswaidan Mashaal , Al-Taweel Sara , Alshehri Huda

Identyfikatory

DOI

10.2478/msp-2021-0018

• Języki publikacji: EN

Abstrakty

EN

Oral dentures are subjected to mechanical and chemical cleansing processes. However, these processes alter the physical and mechanical properties of denture acrylic resins. This study analyzes the surface roughness of conventional heat-cured (HC) polymethacrylate, light-cured (LC) urethane dimethacrylate, and prepolymerized computer-aided design/computer-aided manufacturing (CAD/CAM) dental acrylic resins. The materials were subjected to combined surface treatment of mechanical brushing, thermal cycling, and immersion in chemical disinfectants (corega, chlorhexidine gluconate [CHG], and sodium hypochlorite) to simulate 1 year of clinical use. The surface roughness of the resin specimens before and after surface treatment was evaluated using a noncontact profilometer. Statistical tests based on analysis of variance revealed significant interactions between resin type and disinfectants, indicating that the effects of these two factors were interdependent. The highest and lowest surface roughness was observed in HC resins immersed in CHG and CAD/CAM resins immersed in sodium hypochlorite. Among the materials, HC resins demonstrated the overall highest mean roughness, followed by LC and CAD/CAM resins. Regarding the disinfectant use, the highest mean roughness was observed in disks immersed in CHG, followed by those immersed in corega and sodium hypochlorite. The prepolymerized CAD/CAM acrylic resin demonstrated superior surface quality following combined surface treatments. The HC and LC resins exceeded the roughness threshold and the reported roughness values for acrylic resins following surface treatments. Among the disinfectants tested, sodium hypochlorite produced overall low roughness values.

Słowa kluczowe

EN

polymethylmethacrylate; CAD/CAM technologies; acrylic resin; disinfectant; roughness

• Wydawca: De Gruyter
• Czasopismo: Materials Science Poland
• Rocznik: 2021
• Tom: Vol. 39, No. 2
• Strony: 209--218
• Opis fizyczny: Bibliogr. 43 poz., rys., tab.

Twórcy

autor

Alfouzan Afnan

• Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia

autor

Alnouwaisar Alhanouf

• Ministry of Health, P. O. Box 13127 Riyadh 3807, Saudi Arabia

autor

Alazzam Njood

• College of Dentistry, King Saud University, P. O. Box 60169, Riyadh 11545, Saudi Arabia

autor

Al-Otaibi Hanan

• Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia

autor

Labban Nawaf

• Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia

autor

Alswaidan Mashaal

• King Faisal Specialist Hospital & Research Center, P. O Box 3354, Riyadh 11211 Saudi Arabia

autor

Al-Taweel Sara

• Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia

autor

Alshehri Huda

• Department of Prosthetic Dental Sciences, College of Dentistry, King Saud University, Riyadh, Saudi Arabia

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