Introduction: To simulate removing luting agent remnants from crowns fixed onto implant-abutment analogs using a standardized machine-driven protocol including a scaler and air polishing or sonic.
Material And Methods: A motor-driven device was constructed that controlled the rotational speed of the specimens, machining distance, contact pressure, and working time. A standardized layer of cement (Provicol, VOCO; Cuxhaven, G; Ketac Cem, 3MEspe; Seefeld, G; or Rely X Unicem, 3MEspe, Seefeld, G) was placed onto the finishing line of the crowns luted onto titanium-abutment analogs. The cement layer was scaled with a fresh titanium scaler maneuvered by the motor-driven device and treated with air polishing or sonic. Protocol 1: Scaling only for 20s, 40s, or 60s; n=20; protocol 2: 40s of scaling plus 20s of air polishing; protocol 3: 20s of scaling plus 40s of air polishing; protocol 4: 20s of scaling plus 40s of sonic; protocol 5: 40s of scaling plus 20s of sonic; protocols 2-5: n=10. Cement remnants were counted digitally as "percentage of remnants".
Statistics: mean, standard deviation, Bonferroni post hoc tests; α=0.05.
Results: Ketac Cem was easily removed by scaling only and Provicol by scaling and air polishing, but the self-adhesive resin composite cement Rely X Unicem was not removable with the device. Only remnants of Provicol could be significantly reduced by further treatment after scaling (p<0.001).
Conclusion: The presented motor-driven device enables reproducible investigations of various cleaning protocols and is thus useful to create an overview of cleaning protocols needed for the different types of cement.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.jmbbm.2021.104584 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Ultra-High Sensitivity Methane Gas Sensor Based on Cryptophane-A Thin Film Depositing in Double D-Shaped Photonic Crystal Fiber Using the Vernier Effect.
Sensors (Basel)
December 2024
State Key Laboratory of Metastable Materials Science & Technology and Key Laboratory for Microstructural Material Physics of Hebei Province, School of Science, Yanshan University, Qinhuangdao 066004, China.
Methane gas leakage can lead to pollution problems, such as rising ambient temperature. In this paper, the Vernier effect of a double D-shaped photonic crystal fiber (PCF) in a Sagnac interferometer (SI) is proposed for the accurate detection of mixed methane gas content in the gas. The optical fiber structure of the effective sensing in the sensing SI loop and the effective sensing in the reference SI loop are the same.
View Article and Find Full Text PDFImplant Surface Decontamination Methods That Can Impact Implant Wettability.
Materials (Basel)
December 2024
Department of Prosthodontics and Digital Technology, School of Dental Medicine, Stony Brook University, Stony Brook, NY 11794, USA.
This review addresses the effects of various decontamination methods on the wettability of titanium and zirconia dental implants. Despite extensive research on surface wettability, there is still a significant gap in understanding how different decontamination techniques impact the inherent wettability of these surfaces. Although the literature presents inconsistent findings on the efficacy of decontamination methods such as lasers, air-polishing, UV light, and chemical treatments, the reviewed studies suggest that decontamination alters in vitro hydrophilicity.
View Article and Find Full Text PDFGingival Margin Damage During Supragingival Dental Polishing by Inexperienced Operator-Pilot Study.
J Funct Biomater
December 2024
Department of Veterinary Anatomy, Histology and Embryology, Faculty of Veterinary Medicine, Trakia University, 6000 Stara Zagora, Bulgaria.
Background: Supragingival polishing is a crucial part of nonsurgical periodontal therapy. In recent years, air polishing has been used for this purpose, introducing different polishing powders. The purpose of the following study was to investigate the damage to the gingival margin during air polishing by an inexperienced operator.
View Article and Find Full Text PDFColour Changes and Surface Roughness After Air-Polishing for Tobacco Stain Removal.
Int Dent J
December 2024
Department of Dental and Oral Medicine and Cranio-maxillofacial and Oral Surgery, University Hospital for Conservative Dentistry and Periodontology, Medical University of Innsbruck, Innsbruck, Austria.
Introduction And Aims: We aimed to investigate the efficacy of air-polishing in restoring the original tooth colour of standardised tobacco-stained tooth specimens.
Methods: Seventy-two specimens consisting of half dentine and half enamel were daily exposed to the smoke of five cigarettes in an automated smoking chamber. Four repetitions of a 14-day smoking cycle were performed.
Efficacy of Erythritol Air Polishing for Inducing Initial Healing of Shallow-to-Moderate Periodontal Pockets and Restoring Gingival Crevicular Fluid β-Catenin, 8-Hydroxy-Deoxyguanosine and Total Antioxidant Capacity: A Split-Mouth Randomised Clinical Trial.
Int J Dent Hyg
December 2024
Department of Periodontics, College of Dentistry, University of Baghdad, Baghdad, Iraq.
Objective: To evaluate the efficacy of subgingival erythritol powder air polishing (EPAP) for inducing initial healing of shallow-to-moderate periodontal pockets and its effect on gingival crevicular fluid (GCF) β-catenin, 8-hydroxy-deoxyguanosine (8-OHdG) and total antioxidant capacity (TAC) levels.
Methods: This randomised, split-mouth clinical trial involved 22 periodontitis patients. Periodontal pockets (4-6 mm) were treated either by scaling and root planing (control) or EPAP followed by subgingival instrumentation 1 month later (test).
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!