Dental Laboratories (dental + laboratory)

Distribution by Scientific Domains

Terms modified by Dental Laboratories

  • dental laboratory technician

  • Selected Abstracts


    Dentist Communication with the Dental Laboratory for Prosthodontic Treatment Using Implants

    JOURNAL OF PROSTHODONTICS, Issue 3 2006
    Zahra Afsharzand DMD
    Purpose: A questionnaire was sent to U.S. dental laboratories to evaluate the level of communication between dentists and laboratory technicians and to determine trends in procedures and materials used in fixed and removable implant restorations. Methods and Materials: Dental laboratories were randomly chosen from the National Association of Dental Laboratories for each of the 50 states. The questionnaire was mailed to the laboratory directors for 199 dental laboratories. One hundred fourteen dental laboratories returned the survey, yielding a response rate of 57%. Of those laboratories, 37 indicated that they did not participate in the fabrication of fixed implant restorations, yielding a response rate of 39%. Forty-two dental laboratories indicated that they did not participate in the fabrication of implant-retained overdenture prostheses, yielding a response rate of 36%. Results: Results from this survey show inadequate communication by dentists in completing work authorization forms. Custom trays are used more frequently for implant-retained overdenture impressions and stock trays for impressions of fixed implant prostheses. Poly(vinyl siloxane) is the material most commonly used for both fixed and removable implant-supported prostheses. Two implants with stud attachments are used more widely than those with bar attachments for implant-retained overdentures. Conclusions: Most laboratories working on implant prosthodontic cases report inadequate communication between the laboratory and dentists related to materials and techniques used in fabrication of implant restorations. [source]


    Communication Between the Dental Laboratory Technician and Dentist: Work Authorization for Fixed Partial Dentures

    JOURNAL OF PROSTHODONTICS, Issue 2 2006
    Zahra Afsharzand DMD
    Purpose: A questionnaire was sent to laboratory technicians to determine the level of communication between dentists and dental laboratories in specific areas of the work authorization forms for the fabrication of fixed partial dentures. Materials and Methods: A select number of dental laboratories were randomly chosen from the National Association of Dental Laboratories (NADL) for each of the 50 states. The questionnaire was mailed to the laboratory directors for a total of 199 dental laboratories. The survey asked questions pertaining to the following areas of work authorization: legibility and thoroughness of prescriptions, patient information, choice of materials for the prosthesis, design of the prosthesis, and shade description. For each question, the number of responses received was tabulated and converted to a percentage. Results: Of the 199 laboratories surveyed, 114 (57%) responded to the questionnaire. Results from this survey suggest that there is lack of communication between dentists and dental laboratories through work authorization forms regarding choice of metal alloy, type of porcelain to be used, and choice of margin and pontic design for the prosthesis. Conclusions: Information obtained from the responding laboratories included effectiveness of work authorization forms. There were some similar trends indicated by the large percentage of dental laboratories agreeing on lack of communication by the dentists as reflected by the work authorization forms. [source]


    Dentist Communication with the Dental Laboratory for Prosthodontic Treatment Using Implants

    JOURNAL OF PROSTHODONTICS, Issue 3 2006
    Zahra Afsharzand DMD
    Purpose: A questionnaire was sent to U.S. dental laboratories to evaluate the level of communication between dentists and laboratory technicians and to determine trends in procedures and materials used in fixed and removable implant restorations. Methods and Materials: Dental laboratories were randomly chosen from the National Association of Dental Laboratories for each of the 50 states. The questionnaire was mailed to the laboratory directors for 199 dental laboratories. One hundred fourteen dental laboratories returned the survey, yielding a response rate of 57%. Of those laboratories, 37 indicated that they did not participate in the fabrication of fixed implant restorations, yielding a response rate of 39%. Forty-two dental laboratories indicated that they did not participate in the fabrication of implant-retained overdenture prostheses, yielding a response rate of 36%. Results: Results from this survey show inadequate communication by dentists in completing work authorization forms. Custom trays are used more frequently for implant-retained overdenture impressions and stock trays for impressions of fixed implant prostheses. Poly(vinyl siloxane) is the material most commonly used for both fixed and removable implant-supported prostheses. Two implants with stud attachments are used more widely than those with bar attachments for implant-retained overdentures. Conclusions: Most laboratories working on implant prosthodontic cases report inadequate communication between the laboratory and dentists related to materials and techniques used in fabrication of implant restorations. [source]


    Communication Between the Dental Laboratory Technician and Dentist: Work Authorization for Fixed Partial Dentures

    JOURNAL OF PROSTHODONTICS, Issue 2 2006
    Zahra Afsharzand DMD
    Purpose: A questionnaire was sent to laboratory technicians to determine the level of communication between dentists and dental laboratories in specific areas of the work authorization forms for the fabrication of fixed partial dentures. Materials and Methods: A select number of dental laboratories were randomly chosen from the National Association of Dental Laboratories (NADL) for each of the 50 states. The questionnaire was mailed to the laboratory directors for a total of 199 dental laboratories. The survey asked questions pertaining to the following areas of work authorization: legibility and thoroughness of prescriptions, patient information, choice of materials for the prosthesis, design of the prosthesis, and shade description. For each question, the number of responses received was tabulated and converted to a percentage. Results: Of the 199 laboratories surveyed, 114 (57%) responded to the questionnaire. Results from this survey suggest that there is lack of communication between dentists and dental laboratories through work authorization forms regarding choice of metal alloy, type of porcelain to be used, and choice of margin and pontic design for the prosthesis. Conclusions: Information obtained from the responding laboratories included effectiveness of work authorization forms. There were some similar trends indicated by the large percentage of dental laboratories agreeing on lack of communication by the dentists as reflected by the work authorization forms. [source]


    Workplace air quality and lung function among dental laboratory technicians,

    AMERICAN JOURNAL OF INDUSTRIAL MEDICINE, Issue 2 2006
    Suh-Woan Hu DDS
    Abstract Background Dental laboratory technicians are exposed to dust and/or methyl methacrylate (MMA) in the workplace. Potential effects of the exposures on lung function merit further clarification. Methods This study measured lung function of 45 dental technicians, before and after shifts, on 3 workdays and monitored workplace concentrations of particulate matter with aerodynamic diameter less than 2.5 mm (PM2.5) and MMA in five dental laboratories in Taiwan. Base metals in particles were analyzed by X-ray fluorescence. Repeated measurement analysis was applied to estimate potential effects of PM2.5 on pulmonary function. Results PM2.5 ranged from 26 µg/m3 to 664 µg/m3 and levels of MMA were low in these laboratories. Nickel, cobalt, and chromium were detected in the particles. After controlling for important factors, PM2.5 was associated with a small decrease in forced vital capacity and forced expiratory flow in one second. Conclusion Workplace PM2.5 was associated with a non-significant decrease in lung function of dental technicians. Am. J. Ind. Med., 2006. © 2005 Wiley-Liss, Inc. [source]


    DTG thermal analyses and viscosity measurements of three commercial agar impression materials

    JOURNAL OF ORAL REHABILITATION, Issue 7 2002
    M. Taira
    Three commercial agar impression materials, two for clinical uses and one for dental laboratory, were examined for their thermal properties by differential thermogravimetric (DTG) thermal analyses and viscosity measurements. On DTG profiles, an endothermic peak along with weight loss at around 100 °C was observed on all three agar impression materials as a result of water evaporation. Two clinical agar impression materials were more susceptible to this trend than the remaining one dental laboratory agar impression material. The viscosity of three agar impression materials could be expressed in the exponential function of temperature. Viscosity at 46 °C of one dental laboratory agar impression material far exceeded those of two clinical agar impression materials. Monitoring the viscosity could facilitate the detailed analysis of setting process of agar impression materials upon cooling, and might be useful for future development of agar-based dental impression materials. [source]