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Comparative evaluation of gingival displacement and inflammatory response using different retraction techniques - A
Madhurima Jain1, Sonali Taneja1, Setu Katyal1
1Department of Conservative Dentistry and Endodontics, ITS Dental College, Ghaziabad, Uttar Pradesh, India.
Journal of Conservative Dentistry and Endodontics
|December 1, 2025
Summary
Diode laser and retraction cord offer superior gingival displacement for dental impressions. However, laser and cordless methods provide less gingival inflammation, making them preferable for atraumatic tissue management.
Area of Science:
- Restorative Dentistry
- Periodontology
- Biomaterials
Background:
- Precise gingival retraction is essential for accurate dental impressions in restorative dentistry.
- Achieving adequate gingival displacement while minimizing tissue trauma is a significant clinical challenge.
Purpose of the Study:
- To compare gingival displacement using retraction cord, paste, gel, and diode laser.
- To assess gingival inflammation by measuring interleukin-1β (IL-1β) levels after retraction.
Main Methods:
- Four groups (n=20 each) used cord, paste, gel, or laser for gingival retraction.
- Gingival displacement measured via intraoral scanning and CAD/CAM software.
- Interleukin-1β (IL-1β) levels in gingival crevicular fluid analyzed using ELISA.
Main Results:
- All techniques achieved >0.22 mm displacement; laser yielded the most, followed by cord, paste, and gel.
- Cord retraction showed the highest inflammatory response (IL-1β levels).
- Paste, gel, and laser groups exhibited no significant IL-1β differences at day 1.
Conclusions:
- Laser and cord techniques provide effective gingival displacement.
- Laser and cordless methods result in less gingival inflammation, favoring atraumatic management.
