Related Experiment Video
Updated: Jul 19, 2026
08:00
Colorimetric Assessment of Deiodinase 1 Activity in Human Liver Microsomes Using the Sandell-Kolthoff Reaction
Published on: April 10, 2026
IOTN (DHC): is it supported by evidence?
1Walsall Manor Hospital, Moat Road, Walsall WS2 9PS, UK.
Dental Update
|November 8, 2006
Summary
The Index of Orthodontic Treatment Need (IOTN) may not reliably predict future dental health issues from malocclusion. Alternative indices focusing on aesthetics and patient perception are better for assessing orthodontic needs.
Area of Science:
- Dental Public Health
- Orthodontics
- Epidemiology
Background:
- Malocclusion traits are foundational to the Index of Orthodontic Treatment Need (IOTN) classification.
- Assessing orthodontic treatment need requires reliable predictors of potential dental health impact.
Purpose of the Study:
- To review the evidence linking malocclusion traits with dental disease.
- To evaluate the reliability of IOTN in predicting the future impact of malocclusion.
- To identify more appropriate indices for assessing orthodontic treatment need.
Main Methods:
- Systematic review of evidence connecting malocclusion traits and dental disease.
- Critical analysis of the Index of Orthodontic Treatment Need (IOTN) as a predictive tool.
- Comparison of IOTN with alternative indices considering aesthetic impairment and patient perception.
Main Results:
- The evidence linking common malocclusion traits to dental disease is variable.
- IOTN demonstrates limitations as a predictor of the future impact of malocclusion on dental health.
- Alternative indices incorporating aesthetic concerns and patient views appear more suitable.
Conclusions:
- IOTN's predictive capability for future dental health impact from malocclusion is questionable.
- Indices prioritizing aesthetic impairment and patient-reported outcomes are more appropriate for assessing orthodontic needs.
- Practitioners must recognize IOTN's limitations, particularly concerning the Dental Health Component, despite its potential increased significance with new regulations.
Related Concept Videos
01:27Chronic Obstructive Pulmonary Disease-IV: Assessement and Diagnostic Studies
Assessing and diagnosing Chronic Obstructive Pulmonary Disease (COPD) involves a detailed approach that includes a comprehensive review of medical history, physical examination, and a variety of diagnostic tests. This thorough evaluation is essential to ensure an accurate diagnosis and guide effective management strategies.
Medical History
Medical History
01:22Heart Failure VI: Adjunct Therapies
Additional therapies for treating patients with heart failure (HF) may include procedural interventions, supplemental oxygen, the management of sleep disorders, and nutritional therapy.Procedural InterventionsImplantable Cardioverter-Defibrillator: For patients at risk of life-threatening arrhythmias due to severe left ventricular dysfunction, an Implantable Cardioverter-Defibrillator (ICD) can detect and terminate these arrhythmias, preventing sudden cardiac death and improving survival rates.
01:22Nursing Diagnosis
Following assessment, a nursing diagnosis is the next step in the nursing process. It begins after the nurse has collected and recorded the patient data. The purpose of diagnosing is to identify how the client responds to actual or potential health processes, identify factors that bestow or that cause health problems, the etiologies, and identify resources or strengths the individual, group, or community can draw on to prevent or resolve problems.
The nursing diagnosis focuses on evidence-based...
The nursing diagnosis focuses on evidence-based...
01:30Cardiomyopathy II: Dilated Cardiomyopathy
Dilated cardiomyopathy, or DCM, is a progressive myocardial disorder characterized by ventricular chamber dilation and contractile dysfunction.EtiologyVarious factors can cause DCM, including hypertension and heavy alcohol intake, which contribute to the weakening and enlargement of the heart muscle. Viral infections, such as Coxsackievirus B, adenoviruses, and influenza, can lead to DCM by causing inflammation and damage to heart tissue. Certain chemotherapeutic agents, including daunorubicin,...