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Recurrence in Gingival Pigmentation thrapy

Comparison of Recurrent Rate of Gingival Pigmentation after Treatment by Liquid Nitrogen and cryoprob in 18 Months Follow up in people who have anterior physiologic gingival pigmentation

Status
Active, not recruiting
Phases
Phase 3
Study type
Interventional
Source
IRCT
Registry ID
IRCT2013022512594N1
Enrollment
52
Registered
2013-07-22
Start date
2011-02-04
Completion date
Unknown
Last updated
2018-02-22

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Gingival Pigmentation. Disorder of gingiva and edentulous alveolar ridge, unspecified

Interventions

Intervention 1: The anterior sextant of lower jaw was used as a control group (without any intervention). Intervention 2: In this clinical trial Two types of cryogen were used: liquid nitrogen and nit
each segment was treated randomly by swab dipped in liquid nitrogen and cryoprob that connected to the nitrous oxide cylinder. Each method was performed only once for each patient , and just for a few
Treatment - Devices
The anterior sextant of lower jaw was used as a control group (without any intervention).
In this clinical trial Two types of cryogen were used: liquid nitrogen and nitrous oxide with No specific concentration or specific dose, that connected to the pigmented gingiva. The anterior

Sponsors

Vice Chancellor for Research, Dental School, Khorasgan Branch, Islamic Azad University
Lead Sponsor

Eligibility

Sex/Gender
All

Inclusion criteria

Inclusion criteria: Inclusion Criteria physiologic melanin pigmentation of the gingiva Exclusion Criteria Gingival pigmentation of any systemic disease;Pigmentation caused by certain medications such as antimalarial drugs;anti-bacterial drug Smoking; Gingivitis; known hypersensitivity to the liquid nitrogen and N2O.

Exclusion criteria

Exclusion criteria:

Design outcomes

Primary

MeasureTime frame
Gingiva melanin Pigmentation rate. Timepoint: pretreatment, 2week, 1, 3, 6, 9, 12, 15, 18months after the treatment. Method of measurement: using color analyzing systems of RGB and CMYK with photoshop software.

Secondary

MeasureTime frame
Mean of the value of Gingival Pigmentation. Timepoint: pretreatment, 2week, 1, 3, 6, 9, 12, 15, 18 months after the treatment. Method of measurement: color analyzing systems of RGB and CMYK with photoshop software.

Countries

Iran (Islamic Republic of)

Contacts

Public ContactSaba Badihi

Dental School, Khorasgan Branch, Islamic Azad University

s.badihi@khuisf.ac.ir+98 31 1234 5917

Outcome results

None listed

Source: IRCT (via WHO ICTRP) · Data processed: Feb 4, 2026