Materials for Fixed Dental Prostheses Produced by Digital Manufacturing and Gingival Health: Literature Review

Activity: Talk or presentation types › Oral presentation

Description

To analyze the last 10 years of research on the effects of digital (CAD/CAM) fixed prostheses manufacturing methods and materials on soft tissue health.. Literature search was conducted electronically in databases EBSCO, Science Direct, PubMed, Cochrane Library for the time period 2012 to 2022 including publications in English. Key words: marginal fit, periodontium, CAD/CAM, clinical outcomes, bleeding on probing, composite resins, gingival response, plaque index, gingival index, pocket depths, monolithic lithium disilicate, gingival biotype, milling, three dimensional printing, zirconia, metal, PMMA using the words in various combinations.. A total of 427 articles were selected. The number of clinical studies according to the materials used: zirconia (65 articles), lithium disilicate (40 articles), composite (36 articles), PMMA (25 articles), metal (19 articles). More information about CAD/CAM milling technique (210 articles), less about 3D printing (32 articles), information about traditional manufacturing methods (casting, layering by hand) used in comparative studies. The articles were analyzed including prospective, randomized controlled and retrospective studies where the condition of periodontal or peri-implant tissues were evaluated simultaneously with the evaluation of the clinical results of the materials. The mentioned biological parameters - plaque index, bleeding on probing, pocket depth, technical parameters– marginal fit, surface roughness. The average research time in scientific articles was from 6 months to 1 year.. Study results with variability in surface roughness (increased surface roughness for SLS composite) and marginal fit (horizontal overhang for zirconia crowns) are noted as clinically acceptable relative to biological parameters (bleeding on probing). The CAD/CAM milling technique has decreased negative impact on soft tissues. Research into 3D printed prostheses continues due to the fact that some materials (PMMA) show inadequate biocompatibility. It is recommended to extend the research period to obtain a long-term results.
Period29 Mar 2023
Event titleRSU International Research Conference 2023: Knowledge for Use in Practice
Event typeConference
OrganiserRīga Stradiņš University
LocationRiga, LatviaShow on map
Degree of RecognitionInternational

Related content