Change of periodontal inflammatory indicators through a 4-week weight control intervention including caloric restriction and exercise training in young Koreans

ISRCTN ISRCTN86753073
DOI https://doi.org/10.1186/ISRCTN86753073
Secondary identifying numbers N/A
Submission date
27/07/2015
Registration date
14/08/2015
Last edited
17/12/2020
Recruitment status
No longer recruiting
Overall study status
Completed
Condition category
Nutritional, Metabolic, Endocrine
Prospectively registered
Protocol
Statistical analysis plan
Results
Individual participant data

Plain English summary of protocol

Background and study aims
The aim of this study was to examine the effects of a 4-week weight control program on periodontal (gum) health.

Who can participate?
Obese individuals in their twenties.

What does the study involve?
Participants stayed in the camp under surveillance for two hours of aerobic exercise, three hours of weight training, and a low salt, low fat diet. They were not allowed to have any private foods or drinks except water. We examined their dental plaque at the start and end of the study. We made no attempt to change the participants' toothbrushing method or frequency so as not to affect gum inflammation during the study.

What are the possible benefits and risks of participating?
Not provided at time of registration.

Where is the study run from?
Konyang University (South Korea).

When is the study starting and how long is it expected to run for?
September 2009 to June 2012.

Who is funding the study?
National Research Foundation of Korea (South Korea).

Who is the main contact?
Dr Soo-Jeong Hwang

Contact information

Dr Soo-Jeong Hwang
Scientific

Department of Dental Hygiene
College of Medical Science
Konyang University
Daejeon
302-718
Korea, South

Study information

Study designPre-post study
Primary study designInterventional
Secondary study designNon randomised study
Study setting(s)Other
Study typePrevention
Scientific titleChange of MMP-8, MMP-9, and IL-1beta in gingival crevicular fluid through a 4-week weight control intervention including caloric restriction and exercise training in young Koreans
Study objectivesObesity control can influence periodontal inflammation through systemic and local change.
Ethics approval(s)Ethical Committee of Konyang University Hospital, KYUH 13-89, KYUH 9-25
Health condition(s) or problem(s) studiedBody mass index of >25
InterventionThe subjects stayed in the camp under surveillance for two hours of aerobic exercise, three hours of weight training, and a low salt-low fat diet (≤1,300 kcal/day). They were not allowed to have any private foods or drinks except water. We examined the dental plaque index at the baseline and final state to serve as a proxy for the maintenance of the subjects' habitual oral health behavior. We made no attempt to change the subjects' toothbrushing method or frequency so as not to affect gingival inflammation during the program. Smoking was not prohibited to maintain the other conditions as confounding factors except weight control.
Intervention typeBehavioural
Primary outcome measureMMP-8, MMP-9, and IL-1beta in gingival crevicular fluid
Secondary outcome measuresGingival index
Overall study start date01/09/2009
Completion date01/06/2012

Eligibility

Participant type(s)Healthy volunteer
Age groupAdult
SexBoth
Target number of participants62
Total final enrolment41
Key inclusion criteriaObese individuals (body mass index of >25) aged 20 to 29 and 13 camp trainers of the same age
Key exclusion criteria1. Systemic disease exclusive of obesity
2. Use of steroidal or non-steroidal anti-inflammatory drugs or antibiotics in the last three months or during the program
3. Use of mouthwash in the last three months or during the program
4. Need of dental or medical treatment during the program
5. Fewer than 24 teeth
6. Sites with probing periodontal pocket depth (PD) > 3.5 mm
7. Self-directed dropout during the course of the weight-control program
Date of first enrolment01/06/2011
Date of final enrolment28/06/2011

Locations

Countries of recruitment

  • Korea, South

Study participating centre

Konyang University
Nonsan
320-711
Korea, South

Sponsor information

National Research Foundation of Korea
Government

201 Gajeong-Ro
Yuseong-Gu
Daejeon
305-754
Korea, South

ROR logo "ROR" https://ror.org/013aysd81

Funders

Funder type

Government

National Research Foundation of Korea
Private sector organisation / Trusts, charities, foundations (both public and private)
Alternative name(s)
한국연구재단이 창의적 연구와, National Research Foundation (South Korea), NRF
Location
Korea, South

Results and Publications

Intention to publish date30/09/2015
Individual participant data (IPD) Intention to shareYes
IPD sharing plan summaryAvailable on request
Publication and dissemination plan
IPD sharing plan

Study outputs

Output type Details Date created Date added Peer reviewed? Patient-facing?
Results article results 18/09/2015 17/12/2020 Yes No

Editorial Notes

17/12/2020: The following changes were made to the trial record:
1. Publication reference added.
2. The total final enrolment was added.