The Experts below are selected from a list of 309 Experts worldwide ranked by ideXlab platform

Matthias Hannig - One of the best experts on this subject based on the ideXlab platform.

  • exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Mean background air particle concentrations for the patient were 3.3 × 103 and 1.3 × 103 pt/cm3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 106, P-CDS 4.6 × 106, P-HVE 2.4 × 104; using rubber dam: PC-NS 3.6 × 106, PC-CDS 3.3 × 105, PC-HVE 2.2 × 105. The particle exposures of the dentist were the following: D-NS 9.7 × 105, D-CDS 1.8 × 105, D-HVE 1.6 × 104. The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

  • Exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Objectives Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. Materials and methods A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Results Mean background air particle concentrations for the patient were 3.3 × 10^3 and 1.3 × 10^3 pt/cm^3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 10^6, P-CDS 4.6 × 10^6, P-HVE 2.4 × 10^4; using rubber dam: PC-NS 3.6 × 10^6, PC-CDS 3.3 × 10^5, PC-HVE 2.2 × 10^5. The particle exposures of the dentist were the following: D-NS 9.7 × 10^5, D-CDS 1.8 × 10^5, D-HVE 1.6 × 10^4. Conclusions The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Clinical relevance Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

Stefan Rupf - One of the best experts on this subject based on the ideXlab platform.

  • exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Mean background air particle concentrations for the patient were 3.3 × 103 and 1.3 × 103 pt/cm3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 106, P-CDS 4.6 × 106, P-HVE 2.4 × 104; using rubber dam: PC-NS 3.6 × 106, PC-CDS 3.3 × 105, PC-HVE 2.2 × 105. The particle exposures of the dentist were the following: D-NS 9.7 × 105, D-CDS 1.8 × 105, D-HVE 1.6 × 104. The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

  • Exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Objectives Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. Materials and methods A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Results Mean background air particle concentrations for the patient were 3.3 × 10^3 and 1.3 × 10^3 pt/cm^3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 10^6, P-CDS 4.6 × 10^6, P-HVE 2.4 × 10^4; using rubber dam: PC-NS 3.6 × 10^6, PC-CDS 3.3 × 10^5, PC-HVE 2.2 × 10^5. The particle exposures of the dentist were the following: D-NS 9.7 × 10^5, D-CDS 1.8 × 10^5, D-HVE 1.6 × 10^4. Conclusions The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Clinical relevance Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

L Paglia - One of the best experts on this subject based on the ideXlab platform.

  • SARS-CoV-2 Infection among the Dental Staff from Lombardy Region, Italy
    International journal of environmental research and public health, 2021
    Co-Authors: Silvano Gallus, Luca Paroni, Riccardo Aiuto, Davide Maria Battaglia, Rolando Crippa, Nicolò Carugo, Matteo Beretta, Lorenzo Balsano, L Paglia
    Abstract:

    Dentists have been supposed to be among the healthcare workers at greatest risk of SARS-CoV-2 infection. However, scant data are available on the issue. The aim of this study is to quantify the SARS-CoV-2 antibody prevalence and determinants in a sample of dentists, Dental hygienists, and other personnel employed among the Dental Staff in Lombardy region. We used an accurate rapid diagnostic test kit detecting immunoglobulins (Ig) in 504 adults. Of the 499 participants who obtained a valid antibody test, 54 (10.8%) had a SARS-CoV-2 positive test (0.4% IgM+, 1.8% both IgM+ and IgG+, and 8.6% IgG+). A statistically significant association with infection was found for geographic area (compared to Milan, adjusted odds ratio was 2.79, 95% confidence interval, CI: 1.01–7.68 for eastern and 2.82, 95% CI: 1.34–5.94, for southern Lombardy). The clinical Staff did not result positive to SARS-CoV-2 more frequently than the administrative Staff. This is the first study using antibody test in the Dental Staff personnel. It shows that the prevalence of SARS-CoV-2 infection in Lombardy region was around 10%, in line with estimates on other healthcare professionals. Despite the close physical contact with the patient, dentists have been able to scrupulously manage and effectively use protective devices.

Volker Harth - One of the best experts on this subject based on the ideXlab platform.

  • exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Mean background air particle concentrations for the patient were 3.3 × 103 and 1.3 × 103 pt/cm3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 106, P-CDS 4.6 × 106, P-HVE 2.4 × 104; using rubber dam: PC-NS 3.6 × 106, PC-CDS 3.3 × 105, PC-HVE 2.2 × 105. The particle exposures of the dentist were the following: D-NS 9.7 × 105, D-CDS 1.8 × 105, D-HVE 1.6 × 104. The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

  • Exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Objectives Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. Materials and methods A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Results Mean background air particle concentrations for the patient were 3.3 × 10^3 and 1.3 × 10^3 pt/cm^3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 10^6, P-CDS 4.6 × 10^6, P-HVE 2.4 × 10^4; using rubber dam: PC-NS 3.6 × 10^6, PC-CDS 3.3 × 10^5, PC-HVE 2.2 × 10^5. The particle exposures of the dentist were the following: D-NS 9.7 × 10^5, D-CDS 1.8 × 10^5, D-HVE 1.6 × 10^4. Conclusions The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Clinical relevance Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

Mei Fang Ong - One of the best experts on this subject based on the ideXlab platform.

  • exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Mean background air particle concentrations for the patient were 3.3 × 103 and 1.3 × 103 pt/cm3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 106, P-CDS 4.6 × 106, P-HVE 2.4 × 104; using rubber dam: PC-NS 3.6 × 106, PC-CDS 3.3 × 105, PC-HVE 2.2 × 105. The particle exposures of the dentist were the following: D-NS 9.7 × 105, D-CDS 1.8 × 105, D-HVE 1.6 × 104. The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.

  • Exposure of patient and Dental Staff to fine and ultrafine particles from scanning spray
    Clinical Oral Investigations, 2015
    Co-Authors: Stefan Rupf, Hendrik Berger, Axel Buchter, Volker Harth, Mei Fang Ong, Matthias Hannig
    Abstract:

    Objectives Sprays containing fine and ultrafine particles are commonly used for optical scanning. The aim of this study was to measure the particle exposure of patient and dentist during application of scanning spray and to evaluate measures for its reduction. Materials and methods A lower molar in a Dental simulator was powdered with scanning spray. Patient’s particle exposure was measured by a condensation particle counter in the nasal region of the simulator without (P) and with rubber dam (PC). Dentist’s exposure (D) was measured behind a surgical mask. Particle concentrations were determined 5-fold without suction (NS), using conventional Dental suction (CDS), or high volume evacuation (HVE). Results Mean background air particle concentrations for the patient were 3.3 × 10^3 and 1.3 × 10^3 pt/cm^3 for the dentist. Particle concentrations increased after spraying; mean cumulated additional particle exposures for the patient were the following: P-NS 7.2 × 10^6, P-CDS 4.6 × 10^6, P-HVE 2.4 × 10^4; using rubber dam: PC-NS 3.6 × 10^6, PC-CDS 3.3 × 10^5, PC-HVE 2.2 × 10^5. The particle exposures of the dentist were the following: D-NS 9.7 × 10^5, D-CDS 1.8 × 10^5, D-HVE 1.6 × 10^4. Conclusions The use of HVE is recommended to reduce exposure of patients and Dental Staff to fine and ultrafine particles when using scanning sprays. Clinical relevance Effective protection is available for Staff and patient by means of high volume evacuation. In patients suffering from obstructive lung diseases, the use of scanning sprays should be avoided altogether.