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CompletedNCT07896707Updated Oct 27, 2026

ASSESSMENT OF ORAL HEALTH AND ORAL HEALTH-RELATED QUALITY OF LIFE IN PATIENTS AGED 12-18 YEARS WITH EATING DISORDERS

An observational study in Eating Disorder NOS, sponsored by Ondokuz Mayıs University. Completed at 1 site in Turkey (Türkiye). Open to participants aged 12 Years to 18 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-10-27.

Sponsored by Ondokuz Mayıs University · Observational

Updated Oct 27, 2026Newly registeredGo to Updates ↓
Study type
Observational
Model
Ecologic or community
Time perspective
Cross-sectional
Enrollment
24
Ages
12 Years to 18 Years
Sex
All
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Study summary

Although numerous instruments are available to assess oral health-related quality of life (OHRQoL) in adults, there is a paucity of studies evaluating the impact of oral health on quality of life in children and adolescents. In Türkiye, no study has been conducted to assess oral health-related quality of life in patients with eating disorders.

The aim of this study is to evaluate and compare the oral health status of individuals diagnosed with eating disorders and healthy individuals without an eating disorder diagnosis using various clinical indices, as well as to assess oral health-related quality of life through questionnaires completed by both patients and their parents.

At the conclusion of the study, the treatment needs of the patients will be communicated to both the patients and their parents, and the patients will be referred to the departments of pediatric dentistry and other relevant specialties at a university hospital to receive the necessary dental treatments.

Read the detailed description

Eating disorders are serious psychiatric conditions associated with substantial morbidity and mortality, leading to significant impairments in somatic health and psychosocial functioning (1). Anorexia nervosa and bulimia nervosa are eating disorders characterized by an intense fear of weight gain, maladaptive weight control behaviors, and marked disturbances in body image (2). Because many of these complications can adversely affect quality of life and the overall management of eating disorders, it is essential to understand, monitor, and treat their secondary mental, systemic, and oral health-related effects (3).

Eating disorders are characterized by alterations in eating behaviors that may lead to deterioration in oral health and damage to dental hard tissues (4). However, the existing literature includes only a limited number of reports focusing on oral health outcomes in patients diagnosed with eating disorders at the age of 20 years (5,6). Oral diseases, such as dental caries and periodontal conditions, have physical, economic, social, and psychological consequences and may negatively affect oral function and overall quality of life (7).

Oral health-related quality of life (OHRQoL) refers to an individual's perception of the impact of oral health on daily life and encompasses the effects of oral conditions on functional capacity as well as emotional and social well-being (8). Previous studies have demonstrated a strong association between dental caries and OHRQoL in children (9). However, no studies conducted in Türkiye have evaluated OHRQoL in patients with eating disorders.

Therefore, by assessing the oral health status of patients with eating disorders using established oral health parameters reported in the literature and comparing OHRQoL outcomes with those of healthy controls, this study aims to contribute to the existing literature by providing a comparative evaluation of oral health status within the framework of OHRQoL in patients with eating disorders.

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Conditions studied

  • Eating Disorder NOS

Keywords

  • quality of life
  • eating disorder
  • oral health
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In context

Feeding and Eating Disorders

756 studies on the registry are indexed under Feeding and Eating Disorders; 161 are open to participants now.

This study's enrollment of 24 is below the median of 100 across 185 observational studies indexed under Feeding and Eating Disorders.

Browse Feeding and Eating Disorders studies →

Lead sponsor

Ondokuz Mayıs University is the lead sponsor of 275 studies on the registry; 68 are open to participants now.

Counted across the registry records on this site, refreshed daily.

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Who can participate

Ages eligible
12 Years to 18 Years
Sexes eligible
All
Accepts healthy volunteers
Yes
Sampling method
Non-probability sample

Study population

The study population consists of children and adolescents aged between 12 and 18 years. The population is divided into two groups: a study group and a control group.

The study group comprises children and adolescents diagnosed with eating disorders (anorexia nervosa and/or bulimia nervosa) according to DSM-5 criteria, who were referred to and followed at the Child and Adolescent Psychiatry Clinic of Ondokuz Mayıs University Faculty of Medicine.

The control group consists of physically and psychologically healthy children and adolescents without any diagnosis of eating disorders or other psychiatric disorders, who presented to the Faculty of Dentistry of Ondokuz Mayıs University.

Participants in both groups were selected within the 12-18 age range in accordance with the predefined inclusion and exclusion criteria. The study population includes only individuals for whom written informed consent was obtained from parents or legal guardians and assent was obtained from the children or a

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Study Group (Eating Disorder Group):
  • Children and adolescents aged between 12 and 18 years.
  • A clinical diagnosis of an eating disorder (including anorexia nervosa and/or bulimia nervosa) established by a child and adolescent psychiatrist according to DSM-5 criteria.
  • Follow-up at the Child and Adolescent Psychiatry Clinic of Ondokuz Mayıs University Faculty of Medicine.

Ability to cooperate with clinical oral examination procedures.

Provision of written informed consent by parents or legal guardians and assent by the child/adolescent.

Control Group:

Children and adolescents aged between 12 and 18 years.

Absence of any current or previous diagnosis of an eating disorder.

Absence of diagnosed psychiatric disorders as determined by medical history.

Physical and psychological health status deemed normal.

Referral to the Faculty of Dentistry of Ondokuz Mayıs University for routine dental examination or treatment.

Ability to cooperate with clinical oral examination procedures.

Provision of written informed consent by parents or legal guardians and assent by the child/adolescent.

Exclusion criteria

Exclusion Criteria:

  • Presence of systemic diseases or medical conditions known to affect oral health (e.g., diabetes mellitus, congenital metabolic disorders, autoimmune diseases).
  • History of medications that may influence salivary flow, dental hard tissues, or gingival health (e.g., long-term corticosteroids, antiepileptic drugs, antidepressants causing xerostomia).
  • Presence of syndromic conditions or developmental disorders affecting craniofacial structures.
  • Ongoing orthodontic treatment or presence of fixed orthodontic appliances.
  • History of maxillofacial trauma or oral surgery within the last six months.

Use of removable prosthetic appliances.

  • Inability or unwillingness of the child/adolescent or legal guardian to provide informed consent/assent.
  • Incomplete questionnaire data or inability to complete the OHIP-14 questionnaire.
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Study design

Observational model
Ecologic or community
Time perspective
Cross-sectional
Enrollment
24 participants (actual)
Patient registry
No

Groups and cohorts

  • 1. group

    Study Group (Eating Disorder Group)

    Other: general oral health interventions and scales

  • 2. group

    Control Group (healthy group without eating disorders)

    Other: general oral health interventions and scales

Interventions

  • Othergeneral oral health interventions and scales

    What distinguishes this study from others is the nature of the control group and the fact that the specified scales are used together for the first time.The study group consists of children and adolescents diagnosed with eating disorders who were referred to the Child and Adolescent Psychiatry Clinic of Ondokuz Mayıs University Faculty of Medicine. The control group comprises physically and psychologically healthy children and adolescents who presented to the Faculty of Dentistry of Ondokuz Mayıs University. Participants in both groups will be selected within the age range of 12-18 years. All participating children, adolescents, and their legal guardians will be informed both verbally and in writing about the aim of the study, participation criteria, applied procedures, potential benefits, and possible risks. In addition, a questionnaire assessing sociodemographic characteristics, nutrition-related factors, dietary habits, and oral hygiene practices will be completed jointly by the ch

    Also known as: plate index, gingival index, DMFT, CAST, BEWE, OHIP-14

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What researchers measure

Primary outcomes

  1. Oral Health-Related Quality of Life (OHRQoL)

    The primary outcome measure of this study is the assessment of oral health-related quality of life in children and adolescents with eating disorders compared with healthy controls. Oral health-related quality of life will be evaluated using the Oral Health Impact Profile-14 (OHIP-14) questionnaire, and group comparisons will be performed based on total OHIP-14 scores. Higher OHIP-14 scores indicate increased severity of oral health problems and poorer quality of life.

    Time frame: Through study completion, an average of 1 month.

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Study locations

1 site
  • Ondokuz Mayis University
    Samsun, Atakum 55200, Turkey (Türkiye)
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References and documents

Publications

  • 1) Mitchell JE. Medical comorbidity and medical complications associated with binge-eating disorder. Int J Eat Disord. 2016;49(3):319-23. 2) Castillo M, Weiselberg E. Bulimia nervosa/purging disorder. Curr Probl Pediatr Adolesc Health Care. 2017 Apr;47(4):85-94. 3) Galmiche M, Déchelotte P, Lambert G, Tavolacci MP. Prevalence of eating disorders over the 2000-2018 period: a systematic literature review. Am J Clin Nutr. 2019 May;109(5):1402-13. 4) Garbin CAS, Martins RJ, Belila NM, Garbin AJI. Oral manifestations in patients with anorexia and bulimia nervosa: a systematic review. J Public Health. 2019;28:765-71. 5) Andrade R, Gonçalves-Pinho M, Roma-Torres A, Brandão I. Treatment of anorexia nervosa: the importance of disease progression in the prognosis. Acta Med Portuguesa. (2017) 30:517-23. doi: 10.20344/amp.8963 6) Resmark G, Herpertz S, Herpertz-Dahlmann B, Zeeck A. Treatment of anorexia nervosa-new evidence-based guidelines. J Clin Med. (2019) 8:153. doi: 10.3390/jcm8020153 7) Naito M, Yuasa H, Nomura Y, Nakayama T, Hamajima N, Hanada N. Oral health status and health-related quality of life: a systematic review. J Oral Sci. 2006;48(1):1-7. 8) Kragt L, van der Tas JT, Moll HA, et al. Early caries predicts low oral health-related quality of life at a later age. Caries Res. 2016;50(5):471-479. 9) Chaffee BW, Rodrigues PH, Kramer PF, Vitolo MR, Feldens CA. Oral health-related quality-of-life scores differ by socioeconomic status and caries experience. Community Dent Oral Epidemiol. 2017;45(3):216-224 10) Allen PF (2003). Sep 08. Assessment of oral health related quality of life. Health Qual Life Outcomes 1: 40 11) Hellstrom, I. (1977). Oral complications in anorexia nervosa. Scand J Dent Res. 8: 71-76 12) Hurst, P.S., LACEY, L.H., CRİSP, A.H. (1977). Teeth, vomiting and diet: a study of the dental characteristics of seventeen anorexia nervosa patients. Postgrad Med J., 53: 298-305. 13) Bartlett D, Ganss C, Lussi A. Basic Erosive Wear Examination (BEWE): a new scori

Individual participant data

Plan to share: No

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Timeline

1 registry update since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from May 2026 to primary completion in May 2026, 0 months.

How these figures are worked out, and which studies are left out of them.

Registered
Jan 2, 2026
First posted
Oct 27, 2026
StartActual
May 1, 2026
Primary completionActual
May 15, 2026
CompletionActual
Oct 20, 2026
Last update
Oct 27, 2026
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
Registered
First appeared on the registry. No changes since
Oct 27, 2026
Show all 1 update
  1. Oct 27, 2026
    First appeared on the registry

From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗

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Registry details

Key details

Study ID
NCT07896707
Responsible party
Elif Buse Kaplan (Research Assistant, Ondokuz Mayıs University) — Principal investigator
First posted
Oct 27, 2026
Start date
May 1, 2026
Primary completion
May 15, 2026
Completion
Oct 20, 2026
Last update
Oct 27, 2026

Study contacts

elif buse k kaplan, research assistant
principal investigator · Ondokuz Mayıs Üniversity

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

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This study is completed, as verified in May 2026. You cannot join it, but the record below documents what was studied.

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