effect of laser on pulp histology

comparison of the effect of the use of the two types of laser Nd:YAG(1064nm) and Er:YAG(2940nm) on histologic changes of the premolars human pulp during removal of ceramic brackets (clinical trial)

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20110212005804N6

Enrollment

Registered

2019-12-21

Start date

2019-02-01

Completion date

Unknown

Last updated

2020-01-13

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

Conditions

pulpitis. Pulpitis

Interventions

Intervention 1: First intervention group: Er: YAG laser with 2940 nm wavelength (Fotona, Slovenia) will be used for bracket debonding. The parameters are based on device pre-sets as follows: 1.2 W, 60

Eligibility

Sex/Gender

All

Age

12 Years to 30 Years

Inclusion criteria

Inclusion criteria: Patients with at least two premolar teeth in a single jaw that need to be extracted for orthodontic treatment.

Exclusion criteria

Exclusion criteria: Patients with systemic problems that modify the treatment procedure Patients taking any systemic medicine Teeth with cracks, existing restorations, caries and hypocalcification. Any radicular lesion in clinical or radiographic examination The tooth sensitivity to cold, heat, or bite pressure on the teeth

Design outcomes

Primary

Measure	Time frame
Histologic changes. Timepoint: Immediately after laser irradiation and bracket debonding the teeth are extracted and sent for preparation and histological evaluation. Method of measurement: ?The specimens will be evaluated according to ISO7405 standard.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactDr Mahta Fazlyab

Islamic Azad University

dr.mfazlyab@gmail.com+98 21 2256 4571

Outcome results

None listed

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