Plain English Summary
Background and study aims
In the 21st century there is an urgent need to apply new strategies to prevent allergic diseases among children. Children with gum disease (gingivitis) often have house dust mite allergy. A strategy to eliminate the substance that causes the allergic reaction (allergen) could be dental scaling and root planning.
This study aims to investigate the beneficial effects of 6 months dental scaling and root planning at reducing the negative reaction to the dust mite allergy.
Who can participate?
Children aged 6-16 years with gingivitis and house dustmite allergy
What does the study involve?
Participants are randomly allocated to one of two groups. Those in the first group receive a monthly session for a scaling and root planning program. Those in the second group receive standard treatment, which includes a toothpaste and monthly consultation with an experienced doctor. This lasts for 6 months. Participants in the second group can then receive the intervention program too.
Participants have a blood sample taken at the start, and after the 6 months.
What are the possible benefits and risks of participating?
Participants benefit from free dental consultation and examination, free scaling and root planning from well-experienced dentists, along with a research subject’s fee. A possible risk of participating in this study is hematoma caused by phlebotomist, since we would like to carry blood sample twice
Where is the study run from?
Faculty of Dental Medicine Universitas Airlangga - Dr. Soetomo General Hospital (Indonesia)
When is the study starting and how long is it expected to run for?
January 2017 – December 2017
Who is funding the study?
Faculty of Dental Medicine, Universitas Airlangga (Indonesia)
Who is the main contact?
Sindy Cornelia Nelwan (Scientific)
Effect of Comprehensive Six Months Dental Scaling and Root Planning To Improve Biomolecular Markers of Atopy in Gingivitis Children with House Dust Mite Allergy
Dental scaling and root planning may improve biomolecular markers of atopy by decreasing level of IgE and IgG4 in subjects serum.
Dr. Soetomo General Hospital Ethics Committee for Health Research, 20/01/2017, ref: 20/Panke.KKE/I/2017
Investigator-initiated randomized non-blinded placebo-controlled trial with two-group pretest and repeated posttest superiority-group experimental design
Primary study design
Secondary study design
Randomised controlled trial
Patient information sheet
Not available in web format, please use the contact details below to request a patient information sheet
Participants are randomly allocated to one of two groups. Those in the intervention group receive a comprehensive 6 months dental scaling and root planning treatment program, as well as standard treatment. Scaling and Root Planning is performed by a well-experienced physician from Department of Pediatric Dentistry, Faculty of Dental Medicine Universitas Airlangga - Dr. Soetomo General Hospital, using an ultrasonic scaler. Participants attend a dental session monthly.
Those in the control group receive only standard treatment.
Standard treatment includes toothpaste containing fluoride and triclosan, and monthly consultation with a well-experienced physician.
Primary outcome measure
IgE is measured from a blood sample at baseline and 6 months
Secondary outcome measures
IgG4 is measured from a blood sample at baseline and 6 months
Overall trial start date
Overall trial end date
Reason abandoned (if study stopped)
Participant inclusion criteria
1. Children aged 6-16 years of any gender and ethnicity
2. Diagnosed with HDM allergies by positive skin-prick test
3. Diagnosed with gingivitis by >2 plaque index according to Silness-Löe criteria
4. High baseline IgE titer (>90 pg/ml), suggesting a positive childhood allergic potency
5. Understand and able to cooperate to the research protocol
6. Parents give voluntary, signed written consent in accordance with our institutional policies
Target number of participants
Total final enrolment
Participant exclusion criteria
1. Taking any antihistamines or steroid which commonly interferes with results of skin-prick within one month
2. Previously experienced any immunotherapy procedures
3. Previously experienced dental scaling and root planning within 6 months
4. Presence of low grade fever due to infections rather than gingivitis
5. Recent blood disorders or congenital abnormalities
6. Any medical conditions that may be harmful if involved in this study
Recruitment start date
Recruitment end date
Countries of recruitment
Trial participating centre
Dr. Soetomo General Hospital
Jalan Mayjen Prof. Dr. Moestopo 6-8
Trial participating centre
Jalan Mayjen Prof. Dr. Moestopo 47
Faculty of Dental Medicine Universitas Airlangga
Funding Body Type
Funding Body Subtype
Results and Publications
Publication and dissemination plan
Intended publication at Periodontology 2000
IPD sharing statement:
The datasets generated during and/or analysed during the current study are/will be available upon request from Author Sindy Cornelia Nelwan (email@example.com)
Intention to publish date
Participant level data
Available on request
Basic results (scientific)
2020 results in https://www.ncbi.nlm.nih.gov/pubmed/32054426 (added 17/02/2020)