Evaluation of Gingival Displacement Methods

Summary

This clinical study is being conducted to compare four different methods used to temporarily push the gums away from the teeth during dental procedures. This process, called gingival displacement, is important for dentists to clearly see and work around the tooth when placing crowns or taking impressions. The four methods being studied include: A retraction cord soaked in a special solution, A retraction paste in a capsule, A retraction paste applied with a cap, A soft tissue laser (called a diode laser). Each method is applied to teeth that need crown treatment. The goal is to find out which method moves the gum tissue the most effectively, and which one causes the least bleeding. Fifty-two teeth in total were treated using one of these four methods. Before and after treatment, gum measurements were taken to evaluate how much the gums moved and how much bleeding occurred. By studying these methods, the researchers hope to help dentists choose the most effective and least invasive technique for each patient's needs.

Conditions

• Gingival Displacement

Interventions

PROCEDURE

Retraction cord

A thin cord (type "00") was soaked in 15% ferric sulfate ferric sulfate hemostatic solution and carefully packed into the gingival sulcus. After 3 minutes, the cord was removed and the sulcus was rinsed. This is a traditional mechanical gingival displacement method.

PROCEDURE

Retraction paste in capsule form

A retraction paste was applied using a capsule tip placed around the gingival margin. The paste remained in place for 3 minutes and was then rinsed off with air-water spray. This is a non-traumatic chemical displacement technique.

PROCEDURE

Retraction paste in injector form

Retractrion paste in injector form with compression cap (15% aluminum chloride) was injected into the sulcus, and a cotton compression cap was placed over the tooth. Patients gently bit on the cap for 3 minutes to apply pressure. Afterward, the paste and cap were removed and the area was rinsed. This method combines chemical and slight mechanical displacement.

PROCEDURE

Diode Laser

A 810-nm diode laser with a 400-micron fiber optic tip was used in contact mode to ablate the sulcular epithelium. The laser was operated at 1.0 W with pulsed settings. The procedure was completed by wiping the area with saline to remove residues. This technique enables precise, bloodless gingival retraction with minimal trauma.

Sponsors & Collaborators

• Zonguldak Bulent Ecevit University

  lead OTHER

Principal Investigators

• Seda CENGİZ, DDS, Phd · Professor, Counsellor for Education of Turkish Embassy in Vienna, Prinz-Eugen, Vienna, Austria.

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

NONE

Model

PARALLEL

Eligibility

Min Age

18 Years

Sex

ALL

Healthy Volunteers

Yes

Timeline & Regulatory

Start

2015-12-31

Primary Completion

2016-03-31

Completion

2016-03-31