A randomised controlled trial to assess whether smoking cessation instruction provided by orthodontists to teenage orthodontic patients is beneficial

A randomised controlled trial of smoking cessation instruction in teenage orthodontic patients

Status

Active, not recruiting

Phases

Unknown

Study type

Interventional

Source

ISRCTN

Registry ID

ISRCTN79526387

Enrollment

200

Registered

2009-03-30

Start date

2009-02-01

Completion date

Unknown

Last updated

2016-10-17

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

Conditions

Smoking, malocclusion Mental and Behavioural Disorders Mental and behavioural disorders due to use of tobacco

Interventions

The smoking cessation instruction will be verbal from the orthodontist along with pictorial information. The orthodontist will discuss with the patient an information sheet containing facts regarding

Eligibility

Sex/Gender

All

Inclusion criteria

Inclusion criteria: 1. Orthodontic patients (both males and females) 11-18 years at start of study 2. About to start or undergoing orthodontic treatment with fixed or removable orthodontic appliances 3. Parental agreement to the child's participation in the study and that the child has full confidentiality regarding their smoking status (if child under 16)

Exclusion criteria

Exclusion criteria: Lack of consent - parental or child

Design outcomes

Primary

Measure	Time frame
Smoking status is measured at 6 and 12 months.	—

Secondary

Measure	Time frame
No secondary outcome measures	—

Countries

United Kingdom

Outcome results

None listed

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