Analyzing the Effect of Disinfection Additives on the Linear Dimensional Stability of Dental Alginate Impressions: A Quasi-Experimental Comparative Study
For patients and families
In plain language
An automatic summary of structured registry data. It is an orientation aid, not a substitute for the official protocol or a physician assessment.
- What is being studied
- The protocol lists: Alginate mixed with distilled water, 0.2% Chlorhexidine + Alginate, 1% Chitosan + Alginate, 0.2% Silver Nitrate + Alginate.
- Who it may be relevant to
- Registry conditions: Dimensional Changes. Basic parameters: from 60 Minutes · All.
- What needs checking
- Age, condition and sex are only basic indicators. Prior treatment, laboratory values and other mandatory requirements appear in the eligibility criteria below.
- Where it takes place
- Center list to be confirmed — check the primary protocol.
- Next step
- Save the trial, show it to the treating physician, and confirm current recruitment with the study center. Costs, documents and travel →
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Overview
This quasi-experimental comparative study investigates the effects of incorporating various self-disinfecting agents-0.2% Chlorhexidine (CHX), 1% Chitosan solution, 0.2% Silver Nitrate (AgNO3), green-synthesized Silver Nanoparticles (AgNPs), and 15% PVP-Iodine-on the linear dimensional stability of dental alginate impressions. Alginate is widely used in dentistry but is prone to dimensional changes and contamination. This study aims to assess whether integrating these disinfectants can reduce microbial risks without compromising the material's dimensional accuracy, thereby improving infection control and the precision of dental prostheses
Interventions
- Other Alginate mixed with distilled water
Alginate will be mixed with distilled water only, without any disinfectant additive, to serve as the control for comparison - Other 0.2% Chlorhexidine + Alginate
Alginate will be mixed with 0.2% Chlorhexidine solution to evaluate its effect on the linear dimensional stability of alginate impressions - Other 1% Chitosan + Alginate
Alginate will be mixed with 1% Chitosan solution to assess its influence on the linear dimensional stability of alginate impressions - Other 0.2% Silver Nitrate + Alginate
Alginate will be mixed with 0.2% Silver Nitrate solution to determine its effect on the dimensional stability of alginate impressions - Other Green-synthesized Silver Nanoparticles + Alginate
Alginate will be mixed with a solution of green-synthesized Silver Nanoparticles to investigate its effect on the dimensional stability of alginate impressions - Other 15% Povidone-Iodine + Alginate
Alginate will be mixed with 15% Povidone-Iodine solution to analyze its influence on the dimensional stability of alginate impressions
Primary outcome measures
- Linear Dimensional Stability of Alginate Impressions [Time frame: 1 hour after impression making and cast pouring]
Eligibility criteria
Inclusion criteria
- Dental stone casts free from excessive porosity, fractures, or other visible defects that could affect dimensional stability measurements.
- Typodont models with intact maxillary arch configurations.
Exclusion criteria
- Distorted impressions, under-extended impressions, impressions that detach from the tray before pouring, and impressions with voids, on visual inspection.
- Dental cast with a fracture component, incomplete pouring, and those with voids or bubbles.
Criteria are shown verbatim from the registry (in English). Final eligibility is always assessed by the study center.
Healthy volunteers: No
Study design
- Allocation
- Non-randomized
- Model
- Parallel assignment
- Masking
- Single blind
- Primary purpose
- Basic science
Study locations
Center list to be confirmed — check the primary protocol.
Identifiers
NCT: NCT06899672 · AIDM/ERC/10/2024/01