نتایج جستجو برای: Dental Polishing

تعداد نتایج: 165186  

2017
Carla Kozmacs Britta Hollmann Wolfgang H. Arnold Ella Naumova Andree Piwowarczyk

This pilot study evaluates the surface roughness of monolithic zirconia crowns after chairside polishing by different dental practitioner groups. Four practitioner groups (group I: dental clinical students (n = 6); group II: dentists < 2 years post-qualification experience (n = 6); group III: dentists > 2 years post-qualification experience (n = 6) and group IV: dental technicians (n = 6)) were...

Journal: :Brazilian dental journal 2006
Guilherme Brião Camacho Dionísio Vinha Heitor Panzeri Tomio Nonaka Mariane Gonçalves

During fabrication of bonded ceramic restorations, cervical adaptation, occlusal adjustment and final finishing/polishing are procedures to be performed at the dental office after adhesive cementation. Final adjustments may result in loss of ceramic glaze, which requires new polishing of the ceramic surface, with special attention for selection of adequate materials and instruments. The purpose...

Journal: :Industrial health 2002
Tae Seok Kim Hyoung-Ah Kim Yong Heo Yonggyu Park Chung-Yill Park Young-Man Roh

Dental technicians are exposed to various dusts in working laboratories. This study was conducted to measure level of silica in the respirable dust generated from dental fixed prosthodontics manufacturing processes using Fourier Transform Infrared Spectroscopy (FTIR), and to compare their occurrence of respiratory symptoms with that of non-dental hospital workers (control group). Respirable dus...

Journal: :Journal of dental hygiene : JDH 2014
Gayle McCombs Daniel M Russell

PURPOSE Dental professionals suffer from a high prevalence of work-related musculoskeletal disorders (MSD). Dental hygienists in particular have a high prevalence of pain in the forearms and hands. The objective of this study was to compare 1 cordless handpiece to 2 corded handpieces during simulated tooth polishing in terms of the muscle loads (recorded as electromyography (EMG) activity), dur...

2002
Z. M. Yan T. W. Guo Y. M. Zhang Z. C. Li

Titanium is an ideal material for use in prosthodontics because of its biocompatibility, corrosion resistance, and mechanical strength combined with its lightweight. Recently the use of titanium and titanium alloys for fixed restorations has increased substantially, mainly due to the improvement of techniques for the casting titanium and its alloys. This article reviewed the studies on titanium...

2010
Clement C. Azodo Adebola O. Ehizele Agnes Umoh Patrick I. Ojehanon Osagie Akhionbare Robinson Okechukwu Lawrence Igbinosa

OBJECTIVE To determine the perceived oral health status and treatment needs of Nigerian dental therapists in training and dental technology students. METHODS A descriptive cross-sectional study of students from Federal School of Dental Therapy and Technology Enugu, Nigeria was conducted using self-administered questionnaire to obtain information on demography, self-reported oral health status...

Journal: :Journal of clinical periodontology 1986
B A Smith G S Shanbour R G Caffesse E C Morrison J D Dennison

The purpose of this study was: to determine whether polishing standardized proximal root surfaces with dental floss, Superfloss, wood and plastic interdental cleaners, using a polishing paste, produces any significant change on root surface roughness; and to determine the effectiveness of different number of strokes in polishing. 80 tooth specimens were prepared, 10 in each of 8 sample groups. ...

Journal: :Brazilian dental journal 2004
Alessandra Marçal Agostinho Paula Regina Miyoshi Nelson Gnoatto Helena de Freitas Oliveira Paranhos Luciene Cristina de Figueiredo Sérgio Luiz Salvador

Polishing of dental prostheses can cause a dangerous cycle of cross-contamination involving dentists, laboratory technicians, patients and auxiliary personnel. The aim of this study was to show the microbial contamination in the dental laboratory during the polishing procedure of complete dentures. For this purpose, 4 experiments were conducted. Experiment I -- Determination of the total colony...

2010
Marco Salerno Luca Giacomelli Giacomo Derchi Niranjan Patra Alberto Diaspro

BACKGROUND Surface roughness is the main factor determining bacterial adhesion, biofilm growth and plaque formation on the dental surfaces in vivo. Air-polishing of dental surfaces removes biofilm but can also damage the surface by increasing its roughness. The purpose of this study was to investigate the surface damage of different conditions of air-polishing performed in vitro on a recently i...

2010
Işil SARIKAYA Ahmet Umut GÜLER

OBJECTIVE The purpose of this study was to evaluate the effects of different polishing techniques on the surface roughness of dental porcelains. MATERIAL AND METHODS Fifty-five cylindirical specimens (15x2 mm) were prepared for each feldspathic (Vita VMK 95, Ceramco III) and low-fusing dental porcelain (Matchmaker). Fifty-five specimens of machinable feldspathic porcelain blocks (Vitablocs Ma...

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