Analyzing the Effect of Disinfection Additives on the Linear Dimensional Stability of Dental Alginate Impressions: A Quasi-Experimental Comparative Study

Altamash Institute of Dental Medicine

Status: Not yet enrolling

Conditions: Dimensional Changes

Treatments: Other: 15% Povidone-Iodine + Alginate; Other: 0.2% Silver Nitrate + Alginate; Other: 1% Chitosan + Alginate; Other: Green-synthesized Silver Nanoparticles + Alginate; Other: 0.2% Chlorhexidine + Alginate; Other: Alginate mixed with distilled water

Study type: Interventional

Funder types: Other

Identifiers

NCT06899672

AIDM/ERC/10/2024/01

Details and patient eligibility

About

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

Enrollment: 96 estimated patients

Sex: All

Ages: 60+ minutes old

Volunteers: No Healthy Volunteers

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.

Trial design

Primary purpose: Basic Science

Allocation: Non-Randomized

Interventional model: Parallel Assignment

Masking: Single Blind

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96 participants in 6 patient groups

Control Group (Distilled Water)

Experimental group

Description:

Participants (specimens) will receive alginate mixed with distilled water without any disinfectant, serving as the baseline group

Treatment:

Other: Alginate mixed with distilled water

CHX Group (0.2% Chlorhexidine)

Experimental group

Description:

Participants (specimens) will receive alginate mixed with 0.2% Chlorhexidine solution to assess its effect on dimensional stability

Treatment:

Other: 0.2% Chlorhexidine + Alginate

Chitosan Group (1% Chitosan)

Experimental group

Description:

Participants (specimens) will receive alginate mixed with 1% Chitosan solution to evaluate its effect on dimensional stability

Treatment:

Other: 1% Chitosan + Alginate

Silver Nitrate Group (0.2% Silver Nitrate)

Experimental group

Description:

Participants (specimens) will receive alginate mixed with 0.2% Silver Nitrate solution to evaluate its effect on dimensional stability

Treatment:

Other: 0.2% Silver Nitrate + Alginate

Silver Nanoparticles Group (Green-Synthesized AgNPs)

Experimental group

Description:

Participants (specimens) will receive alginate mixed with green-synthesized silver nanoparticles to investigate its impact on dimensional stability

Treatment:

Other: Green-synthesized Silver Nanoparticles + Alginate

PVP-Iodine Group (15% Povidone-Iodine)

Experimental group

Description:

Participants (specimens) will receive alginate mixed with 15% Povidone-Iodine solution to determine its effect on dimensional stability

Treatment:

Other: 15% Povidone-Iodine + Alginate