In Vitro Study of the Surface Roughness, Hardness, and Absorption of an Injection-Molded Denture Base Polymer, Manufactured under Insufficient Mold Solidification

Chuchulska, Bozhana; Dimitrova, Mariya; Dochev, Boyan

doi:10.3390/app14072906

Cited by 2 publications

(1 citation statement)

References 59 publications

(59 reference statements)

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“…The prevalence of these challenges is underscored by research focusing on implant-retained complete dentures, which has identified fractures of denture teeth as a prominent and persistent concern. This concern is further compounded by the evolving landscape of removable prosthetics, characterized by a rising inclination toward utilizing multiple implants to support prostheses [15,16].…”

Section: Introductionmentioning

confidence: 99%

Fracture Resistance Analysis of 3D-Printed and Prefabricated Artificial Teeth for Removable Dentures

Dimitrova,

Kazakova,

Vlahova

2024

Preprint

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The integration of three-dimensional (3D) printed resin denture teeth represents a significant ad-vancement in digital dentistry. This study aimed to assess their ability to withstand chipping and indirect tensile fractures, comparing them with conventionally manufactured resin denture teeth. Four groups, each comprising 30 specimens, were examined: Group 1 featured 3D printed denture teeth (NextDent, 3D Systems, Soesterberg, The Netherlands), while the others included commer-cially obtained Ivostar Shade, SpofaDent Plus, and Major Super Lux teeth. Stereolithography 3D printing was utilized to produce methacrylate-based photopolymerized resin teeth models for Group 1, while the remaining groups were commercially sourced. Chipping and indirect tensile fracture tests were performed at a speed of 1 mm/min until fracture occurred. Statistical analysis was conducted using one-way analysis of variance (ANOVA) with Tukey's honestly significant difference multiple comparisons test (p < 0.05). Results indicated that 3D-printed teeth exhibited higher indirect tensile fracture resistance than Major Super Lux and Ivostar Shade but lower than SpofaDent Plus. Additionally, in the chipping test, buccal chipping occurred in 3D-printed resin teeth without distortion. In the indirect tensile test, the fracture line emerged near the loading point, extending cervically from the inner incline of both cusps. Overall, denture teeth produced via 3D printing with printable resin materials demonstrated sufficient fracture resistance, making them suitable for prosthetic applications.

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Section: Introductionmentioning

confidence: 99%

Fracture Resistance Analysis of 3D-Printed and Prefabricated Artificial Teeth for Removable Dentures

Dimitrova,

Kazakova,

Vlahova

2024

Preprint

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Assessment of CAD/CAM Fabrication Technologies for Post and Core Restorations—A Narrative Review

Dimitrova,

Vlahova,

Kazakova

2024

Medicina

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The primary objective of this study is to conduct a comprehensive review of the existing literature that discusses research on post and core restorations, covering aspects such as their composition, manufacturing methods, and clinical effectiveness. The methodology employed in this review encompasses the implementation of a well-defined search strategy, the establishment of criteria for inclusion and exclusion, and the selection of relevant studies to summarize their findings. To gather relevant literature published between 1993 and 2023, the research team conducted separate searches on PubMed, Web of Science, and Embase databases. In total, 168 titles were initially retrieved from these electronic databases. By applying the predefined exclusion criteria, the researchers identified 73 articles that specifically address the conventional and computer-aided design/computer-aided manufacturing (CAD/CAM) technologies employed in post and core restorations. These treatments are commonly employed to restore teeth that have received endodontic therapy and subsequently experienced loss of dental structure. The development of computerized technology for the creation of customized posts and cores has emerged as a straightforward and efficient alternative to traditional methods. The review synthesizes papers discussing the techniques and materials involved in CAD/CAM-based construction of post and cores. It explores strategies for restoring endodontically treated teeth, highlighting both direct and indirect approaches. Commonly mentioned materials include zirconia, composite resin, and hybrid ceramics. Despite the limited literature on CAD/CAM post and core procedures, the review emphasizes the necessity of further research to assess long-term outcomes and efficacy. Additionally, it suggests including implications for future research and clinical recommendations to enhance the depth and practical relevance of the review.

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In Vitro Study of the Surface Roughness, Hardness, and Absorption of an Injection-Molded Denture Base Polymer, Manufactured under Insufficient Mold Solidification

Cited by 2 publications

References 59 publications

Fracture Resistance Analysis of 3D-Printed and Prefabricated Artificial Teeth for Removable Dentures

Fracture Resistance Analysis of 3D-Printed and Prefabricated Artificial Teeth for Removable Dentures

Assessment of CAD/CAM Fabrication Technologies for Post and Core Restorations—A Narrative Review

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