Oral Impacts on Daily Performances (OIDP)
Oral Impacts on Daily Performances · Also known as: OIDP, Oral Impacts on Daily Performances (OIDP)
The Oral Impacts on Daily Performances (OIDP) is an 8-item interview-administered instrument measuring the functional and social impact of oral conditions on everyday activities. Developed by Adulyanon and Sheiham in 1997, it captures how oral problems (pain, difficulty eating, appearance concerns) disrupt routine daily performances such as eating, speaking, cleaning teeth, sleeping, smiling, and work concentration. The OIDP is particularly valuable in developing countries and resource-limited settings where functional impairment is the primary concern.
Read the full method
Sign in with a free account to read this section.
Method map
The neighbourhood of related methods — select a node to explore.
When to use it
The OIDP is used in epidemiological surveys, particularly in developing countries, to assess oral health burden and prioritize treatment resources to populations with greatest functional impairment. It is valuable in evaluating interventions (preventive programs, restorative treatment, orthodontics) where functional and quality-of-life benefit is an outcome. The OIDP is also used in clinical research comparing oral health status across populations and identifying disparities in both disease and experienced impact. It complements clinical indices (DMF-T, bleeding on probing) by capturing the patient-centred burden underlying clinical findings.
Strengths & limitations
- Directly measures functional impact: captures disruption to everyday activities rather than disease presence, reflecting patient experience and disability perspective aligned with WHO ICF framework
- Psychometrically valid with good internal consistency (Cronbach α = 0.73-0.84) and acceptable test-retest reliability (ICC = 0.70-0.80) across populations
- Developed and extensively validated in low-resource and developing country settings (Thailand, Brazil, India, Kenya); highly relevant for resource allocation in primary care
- Sensitive to intervention effects: demonstrates improvement in OIDP following restorative treatment, preventive programs, or prosthetic rehabilitation
- Socially and culturally appropriate for lay populations; interview format accommodates low literacy levels and diverse languages
- Interview-administered; requires trained staff and face-to-face contact, limiting feasibility in large surveys; self-completion versions exist but require validation
- Recall period (6 months) may miss acute impacts or subtle changes; respondents may forget intermittent symptoms
- Frequency × severity multiplication method assumes linear relationship; nonlinear weighting schemes have been proposed but lack consensus
- Does not distinguish causality: respondents may attribute functional limitation to oral causes when other factors (systemic illness, aging) contribute; clinical validation needed
Frequently asked
How is OIDP different from OHIP-14?
Both measure oral health-related quality of life, but with different emphases. OHIP-14 focuses on frequency of impacts (e.g., 'How often did you have difficulty eating?') across 7 dimensions. OIDP assesses functional performances and weighs both frequency and severity; used more in epidemiological surveys, especially in developing countries. OIDP is shorter (8 items vs. 14) and interview-administered.
Can OIDP be self-completed rather than interview-administered?
Self-completion versions exist and are used in some studies for efficiency, particularly in literate populations. However, the original instrument was interview-administered; self-completion may introduce different response biases and has not been validated to the same extent as interview format. Interview administration is preferred for research.
What is the minimal clinically important difference (MCID) for OIDP?
MCID has not been formally established for OIDP. Conservative estimates based on similar quality-of-life measures suggest a change of 10-15 percentage points represents clinically meaningful improvement. Raw change of 3-4 points on the 0-96 scale is also used.
How does OIDP perform in elderly edentulous populations?
OIDP has been validated in older adults with complete dentures, measuring functional impact of denture fit and satisfaction. Items remain relevant (eating, speaking, appearance); denture-related impacts are captured. Some studies modify language to reference 'dentures' rather than 'teeth'.
Sources
- Adulyanon, S., & Sheiham, A. (1997). Oral impacts on daily performances. In G. D. Slade (Ed.), Measuring Oral Health and Quality of Life (pp. 151-160). Chapel Hill: University of North Carolina. link ↗
How to cite this page
ScholarGate. (2026, June 3). Oral Impacts on Daily Performances. ScholarGate. https://scholargate.app/en/dentistry/oral-impacts-daily-performance
Which method?
Set this method beside its closest kin and read them side by side — the library lays the books on the table; the choice is yours.
Compare side by side →