Online ISSN: 2515-8260

Keywords : Impression Materials


Preference of impression material and technique for complete denture treatment among the dental practitioners in Bhubaneswar: Questionnaire Based Survey

Sonali Perti; Shruti Vishal Dev; Sourav Kumar Pati; Dibyadeepika Mohapatra

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 8, Pages 4708-4717

Background & Aim: Proper impression procedure is essential for obtaining good retention,
support and stability for complete denture. With time various impression materials and
techniques have evolved, presently computer aided design/computer aided manufacturing
(CAD/CAM) technology in the field of removable complete denture prosthetics have
effectively reduced patient visits and decreased chair side time, thus expediting the
otherwise cumbersome process. Despite the advances, material choice usually relies on
personal preference and experience and varies from those taught in dental schools. This
study focuses on questionnaire-based survey to assess and know the impression materials
and techniques for complete dentures that are being followed by the dental practitioners
(DPs) in Bhubaneswar. Method: A total of 400 questionnaires were sent to dental
practitioners (DPs) in Bhubaneswar to assess and know the impression materials and
techniques for complete dentures that are preferred by them. Results: The results revealed
that general practitioner preferred using irreversible hydrocolloid for primary impression
and for secondary impressions Zinc oxide-eugenol (ZOE) was preferred material of choice
for impression making in complete denture. Conclusions: The survey reflects a diverse
range of clinician preferences but in the era of evidence based dentistry, clinical decision
making should be made on best available evidence with the fact in mind that patient
satisfaction and comfort is our ultimate goal.

DISINFECTION OF IMPRESSION MATERIAL- A REVIEW

Sree lakshmi S.B; Jayalakshmi Somasundram; R.V Geetha

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 1, Pages 978-985

Dental impressions are categorized under semi-critical objects in dental practice and require high level
disinfection or sterilization. Sterilization in an autoclave will compromise the dimensional accuracy of the
impression hence it is not feasible. Until 1991, the recommended procedure for disinfection of impression
was rinsing under running water with which only 40% of bacteria, viruses and fungi were removed and
potential for transmission of microorganisms remained there. In recent times, a pre wash of the impression
with running water is advocated first to cast off all particles, blood and saliva prior to active disinfection
procedure. Disinfection of dental impression should be a routine procedure in the dental office and dental
laboratory. However, most of the dental professionals in private clinics, hospitals, dental schools and
prosthetic laboratories are not following the required protocols for impression disinfection. Keeping in
view the above findings, it is of utmost importance to raise the level of awareness in dental professionals
involved in any process of handling, transportation, processing and storage of the dental impressions.
With this background ,the aim of this review is to generate an update on the various techniques of
impression disinfection along with their mechanism of action , dimensional stability ,cause of infection on
impression material and effects of disinfectant on impression materials.

Disinfection Of Impression Material - A Review

Sree lakshmi S.B; Jayalakshmi Somasundram; R.V Geetha

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 1, Pages 2451-2460

Dental impressions are categorized under semi-critical objects in dental practice and require high level disinfection or sterilization. Sterilization in an autoclave will compromise the dimensional accuracy of the impression hence it is not feasible. Until 1991, the recommended procedure for disinfection of impression was rinsing under running water with which only 40% of bacteria, viruses and fungi were removed and potential for transmission of microorganisms remained there. In recent times, a pre wash of the impression with running water is advocated first to cast off all particles, blood and saliva prior to active disinfection procedure. Disinfection of dental impression should be a routine procedure in the dental office and dental laboratory. However, most of the dental professionals in private clinics, hospitals, dental schools and prosthetic laboratories are not following the required protocols for impression disinfection. Keeping in view the above findings, it is of utmost importance to raise the level of awareness in dental professionals involved in any process of handling, transportation, processing and storage of the dental impressions.
With this background ,the aim of this review is to generate an update on the various techniques of impression disinfection along with their mechanism of action , dimensional stability ,cause of infection on impression material and effects of disinfectant on impression materials.