Evaluation of Different Materials Used for Fabrication of Complete Digital Denture

Abstract

Utilization of computer-aided design/computer-aided manufacturing (CAD/CAM) rapidly increases in dental medicine. Making of computer-engineered complete denture is based on scanning of patient data, designing of prosthesis and milling or rapid prototyping. This is digital denture, term that includes innovative devices, software programmes and corresponding materials. Industrially polymerized cross-linked polymethyl methacrylate (PMMA) is the material used for fabrication of digital denture. The aim of this study is to analyze the different cross-linked PMMA used for fabrication of CAD/CAM complete denture.

In-vitro Comparative Evaluation for the Surface Properties and Impact Strength of CAD/CAM Milled, 3D Printed, and Polyamide Denture Base Resins

“…This decrease may be due to the fabrication process of prepolymerized resin blocks, where it is fabricated at high temperature and under appropriate pressure which improved degree of conversion and lesser residual monomer. Therefore, the prepolymerized resin exhibited little shrinkage, porosity, or free monomers,[ 12 ] similar to Rosca et al findings. [ 13 ]…”

“…These enhance the fracture resistance and increase the lifetime of the denture for the patient. [ 12 ] In contrast, the inferior IS of 3D-printed resin could be related to the 3D printing processing technique (printed resin, light polymerization and printing method, and parameters), which could result in improper bonding between the successive polymerized layers, a high amount of residual monomer, and air bubbles, which is a matter of concern as it affects the physical properties of the resulted denture. [ 24 25 26 27 ]…”

Assessment of Conventionally and Digitally Fabricated Complete Dentures: A Comprehensive Review

“…The CECDs showed a more precise base fit, better clinical retention, and a minimized occurrence of denture-related traumatic lesions [ 4 , 31 , 41 , 42 ]. Steinmassl et al reported that the milled digital removable complete denture demonstrated a significant increase and improvement in retention, fitting [ 30 ], and higher dimensional accuracy, contour, fitting, extension, and stability compared to the conventionally fabricated CDs [ 40 , 43 , 44 ]. However, in a pilot cohort screening, Bidra et al stated that about 50% of participants did not record retention, adaptation, and stability as having a good or excellent outcome [ 22 ].…”

“…Alhallak and Nankali stated that the biocompatibility of CECDs still requires better follow-up and documentation [ 63 ]. Data storage allows for a quick replacement of dentures when they are missing or damaged [ 43 , 44 , 56 ]. Additionally, the time needed for the manufacturing and processing of CECDs was only two visits, resulting in one less hour of chair time for the dentist and five hours less time for the dental laboratory.…”

Comparative Study on Two Methods Used in Obtaining 3D Printed Dental Models

“…3D printing and intraoral scanning represent topics of great interest in the modern scientific research, showing a significant development [31][32][33][34], with extremely promising perspectives; therefore, the dentistry of the future has every chance to become "3D printedˮ, and the acquisition of the necessary data for the elaboration and implementation of the treatment plans shall be mostly or -perhaps -exclusively done in the dental office.…”