Assessment of the Knowledge about Routine Laboratory Procedures in Fabrication of Fixed Dental Prostheses amongst Dental Laboratories in Western Maharashtra Region

Abstract

BACKGROUND The success of fixed dental prosthesis (FDPs) delivered to the patients depends upon the implementation of appropriate laboratory procedures and dental materials which are required during fabrication of that prosthesis. Inappropriate technique during its fabrication may not always hamper the esthetic end results or fit, but may also hamper the longevity as well. Thus, knowledge about the dental materials as well as the basic laboratory procedures among the dental laboratories should be regularly assessed to assure good quality work. This survey was conducted to assess the knowledge among laboratory technicians regarding the routinely used laboratory procedures and materials for fabrication of FDPs in dental laboratories in Western Maharashtra region with the help of a validated questionnaire. METHODS An electronic survey was conducted with the help of a validated questionnaire that was circulated to 49 laboratories in Western Maharashtra region. The feedback was gathered from laboratory technicians and was then statistically analysed to achieve the objectives of the study. RESULTS 48.8 % of laboratories confirmed that technicians working for them were registered under the state council. 51 % agreed that they only used dental materials that were American Dental Association (ADA) specified. The most common gypsum product for pouring of impressions was dental stone. 65.9 % of the technicians agreed that they inspected the cast before starting the fabrication procedure. Die preparation and ditching procedure was done by 52.9 % and 35.7 % laboratories respectively. Only 38.1 % agreed of using beryllium free alloy ingots; in 66.7 % laboratories, ceramic work was carried out in a separate ceramic room with 76.2 % having adequate ventilation provisions. CONCLUSIONS Response of technicians in Western Maharashtra region regarding their knowledge about basic laboratory procedures in FDP fabrication indicates several areas of weakness. Avoiding such inadequacy in laboratories can significantly reduce FDP failure rates. KEY WORDS Fixed Dental Prosthesis, Dental Laboratory, Survey