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Tanu Gupta
Ashish Choudhary
Anurag Hasti
Prabhakar Gupta


Infection Control, Surface Roughness, Dimensional Stability, Dental Plaster, Dental Stone, Die Stone


Introduction- Infection control attitudes at dental clinics and dental labs are changing as a result of the increased understanding of the hazards of cross-contamination with hepatitis B virus (HBV) and human immunodeficiency virus (HIV).

Objective-To examine how well dental stone, die stone, and plaster of Paris models cleaned using the spray approach and included with Glutaraldehyde reproduce surface detail and dimensional stability in their experiments.

 Methodology- In-vitro experimental study was conducted in the Department of Prosthodontics and Crown And Bridge, Teerthanker Mahaveer Dental College And Research Centre, TMU, Moradabad to evaluate and compare the effect of glutaraldehyde on the dimensional stability and surface roughness of die stone, dental stone and dental plaster. Sample size was 100, contact profilometer was used to measure the surface roughness and Vision Inspecting system was used to measure the dimensional stability of the samples.

 Results- The significant difference in plaster between the three groups was observed between Control and Incorporation groups (S.R high in Incorporation group) spray and Incorporation groups (S.R high in Incorporation group), for Dental Plaster and stone, there is no significant difference in dimension between the three techniques. For die stone alone, a significant difference was observed.

 Conclusion- in our study found that surface roughness of dental plaster and die stone was higher and dimensional stability of die stone was lower after it was disinfected with glutaraldehyde, however spray disinfection has no ill effect on physical properties of gypsum products, further studies and more researches are required to improve the effectiveness of spray disinfection.

Keywords- Infection Control, Surface Roughness, Dimensional Stability, Dental Plaster, Dental Stone, Die Stone, Glutaraldehyde, Spray, Incorporation Technique

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