Nadia H Hasan, Njwan F Shehab, Amjad L Alhayaly, Muthanna S Ahmed
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引用次数: 0
Abstract
Aim: We investigated the impact of additive manufacturing (AM) techniques, specifically stereolithography (SLA) and digital light processing (DLP), on the optical properties and surface characteristics of resin-based materials used in restorative dentistry. With the increasing adoption of AM in dental applications, understanding the performance of these techniques under challenging conditions is essential.
Methods: Sixty resin specimens of Senertek P-Crown V2 were fabricated using both SLA and DLP technologies. We aimed to evaluate color stability, translucency, and texture of the surface following thermocycling and acidic aging treatments. Statistical analysis was assessed using nonparametric tests, including the Mann-Whitney U, Kruskal-Wallis, and independent sample t-tests, with the significance level set at P < 0.05.
Results: DLP samples demonstrated significantly greater color changes (ΔE values of 4.64 under thermocycling and 5.79 under acidic conditions) compared to SLA samples, which remained below the threshold of ΔE < 3.3, which is clinically acceptable in either condition. In addition, translucency values indicated inferior performance of DLP materials, especially after exposure to acidic environments. Surface roughness was also markedly higher in DLP.
Conclusion: SLA demonstrated superior color stability and surface quality compared to DLP. Optimizing the printing parameters and addressing unreacted monomers are essential for enhancing the resilience of dental repairs in challenging environments.
期刊介绍：
It is a journal aimed for research, scientific facts and details covering all specialties of dentistry with a good determination for exploring and sharing the knowledge in the medical and dental fraternity. The scope is therefore huge covering almost all streams of dentistry - starting from original studies, systematic reviews, narrative reviews, very unique case reports. Journal scope is not limited to these subjects and is more wider covering all specialities of dentistry follows: -Preventive and Community dentistry (Dental public health)- Endodontics- Oral and maxillofacial pathology- Oral and maxillofacial radiology- Oral and maxillofacial surgery (also called oral surgery)- Orthodontics and dentofacial orthopedics- Periodontology (also called periodontics)- Pediatric dentistry (also called pedodontics)- Prosthodontics (also called prosthetic dentistry)- Oral medicine- Special needs dentistry (also called special care dentistry)- Oral Biology- Forensic odontology- Geriatric dentistry or Geriodontics- Preventive and Social Medicine (Public health)- Our journal appreciates research articles pertaining with advancement of dentistry, preventive and community dentistry including oral epidemiology, oral health services research, oral health education and promotion, behavioral sciences related to dentistry, dental jurisprudence, ethics and oral health, economics, and quality assessment, recent advances in preventive dentistry and community dentistry.
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