[HIRANUMA-8] Candida albicans adhesion on 3d-printed vs. conventional denture bases: An in vitro study
[Abstract]
Denture stomatitis, a prevalent inflammatory condition affecting up to 70% of denture wearers, is frequently associated with Candida albicans adhesion to the denture base. While traditional processing of denture resin facilitates C. albicans adherence, advancements in digital dentistry have introduced CAD/CAM techniques for denture fabrication. 3D printing offers potential advantages like diminished waste and increased production efficiency. Limited research exists on printed denture resins, particularly regarding their susceptibility to C. albicans adhesion and the subsequent risk of denture stomatitis. This study investigates the impact of resin types (3D printed VS conventional denture base resin) and finishing protocols on surface roughness and adhesion of C. albicans.
Employing the XTT-assay and Colony Forming Unit count, both denture types were scrutinized for C. albicans biofilm formation at 24 and 48 hours, alongside surface roughness assessments.
Results suggest that the unpolished 3D-printed resin exhibits significantly higher C. albicans adhesion and surface roughness compared to conventional PMMA denture resin. Interestingly, curing a coat of the same liquid 3D-printable material onto an unpolished 3D-printed base significantly reduced both parameters.
This study sheds light on how clinicians could employ 3D-printed materials in their removable prosthodontic practice.
トピックス
●3D Printing
●CAD/CAM
●polymethylmethacrylate
Denture stomatitis, a prevalent inflammatory condition affecting up to 70% of denture wearers, is frequently associated with Candida albicans adhesion to the denture base. While traditional processing of denture resin facilitates C. albicans adherence, advancements in digital dentistry have introduced CAD/CAM techniques for denture fabrication. 3D printing offers potential advantages like diminished waste and increased production efficiency. Limited research exists on printed denture resins, particularly regarding their susceptibility to C. albicans adhesion and the subsequent risk of denture stomatitis. This study investigates the impact of resin types (3D printed VS conventional denture base resin) and finishing protocols on surface roughness and adhesion of C. albicans.
Employing the XTT-assay and Colony Forming Unit count, both denture types were scrutinized for C. albicans biofilm formation at 24 and 48 hours, alongside surface roughness assessments.
Results suggest that the unpolished 3D-printed resin exhibits significantly higher C. albicans adhesion and surface roughness compared to conventional PMMA denture resin. Interestingly, curing a coat of the same liquid 3D-printable material onto an unpolished 3D-printed base significantly reduced both parameters.
This study sheds light on how clinicians could employ 3D-printed materials in their removable prosthodontic practice.
トピックス
●3D Printing
●CAD/CAM
●polymethylmethacrylate