Compariative evaluation of effect of chemical and Er,Cr:YSGG –assisted laser- bleaching on increasing of dentin sensitivity

Status

Recruiting

Phases

Unknown

Study type

Interventional

Source

IRCT

Registry ID

IRCT20190106042255N1

Enrollment

Registered

2019-03-03

Start date

2019-02-20

Completion date

Unknown

Last updated

2019-03-25

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

Conditions

tooth bleaching.

Interventions

Intervention 1: Intervention group: chemical bleaching. Intervention 2: Intervention group: Er,Cr:YSGG –assisted laser- bleaching.

Eligibility

Sex/Gender

All

Age

18 Years to No maximum

Inclusion criteria

Inclusion criteria: Having 12 anterior teeth without filling and caries in upper and lower jaw Having 18 years old at least Having no tooth sensitivity No usege of antisensitivity productions at least 6 weeks befor treatment No usege of analgesics 72 hours befor treatment having good general and oral health

Exclusion criteria

Exclusion criteria: Women in pregnancy and nursing Severe internal discolouration (Tetracycline stain,Felorosis,pulpless teeth) Having history of tooth whitening and antisensitivity treatment Having tooth sensitivity Having poor general and oral health Smoking Having periodontal disease or undertreatment Having parafunctional habits like bruxism Usage of orthodontics appliance

Design outcomes

Primary

Measure	Time frame
Dentin sensitivity. Timepoint: befor treatment, immediately after, 24 hours after , 1 week after and 1 month after treatment. Method of measurement: VAS analyse chart.	—

Countries

Iran (Islamic Republic of)

Contacts

Public ContactMaryam Poulaki

Hamedan University of Medical Sciences

poulaki.mp7@gmail.com+98 81 3831 6830

Outcome results

None listed

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