Developing a short form of Oral Health Impact Profile (OHIP) for dental aesthetics: OHIP-aesthetic.
OBJECTIVE
To develop and evaluate shortened forms of the Oral Health Impact Profile (OHIP) for discriminating dental aesthetics problems and evaluating dental aesthetic outcomes.


METHODS
Eighty-seven subjects self-completed the 49-item OHIP at baseline and 63 at follow up (8 weeks later), with the intervention of applying an array of tooth-whitening products. Expert-based approach and regression analysis (on baseline data) were undertaken to derive two subset questionnaires (OHIP-conceptual and OHIP-regression). Their discriminatory ability for dental aesthetics and their responsiveness to tooth whitening were compared with the original OHIP-49, Slade's OHIP-14 and a Chinese short-form version of OHIP.


RESULTS
The measures developed were strongly associated with self-rating of dental aesthetics (P < 0.001) unlike OHIP-49 (P = 0.03) or other OHIP short forms (P > 0.05). The measures were also reliable (Cronbach's alpha 0.86) and comparable with the other OHIP forms. In terms of effect size, OHIP-conceptual was more effective in measuring changes than the one based on the regression analysis, the original OHIP-49, OHIP-14 and the Chinese version of the short-form OHIP. It also exhibited a less susceptibility to floor effects than other OHIP forms.


CONCLUSIONS
A modified short form of the OHIP derived (OHIP-conceptual) was the most favorable in discriminating dental aesthetics, was reliable and most sensitive to the dental aesthetics intervention - tooth whitening.
Wong
Anthony H H
AH
Periodontology & Public Health, Faculty of Dentistry, University of Hong Kong, Hong Kong SAR, China.
Cheung
C S
CS
McGrath
Colman
C
D001294:Attitude to Health; D004955:Esthetics, Dental; D005500:Follow-Up Studies; D006801:Humans; D017060:Patient Satisfaction; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D011795:Surveys and Questionnaires; D014073:Tooth Bleaching / Q000009:adverse effects / Q000295:instrumentation / Q000379:methods; D014075:Tooth Discoloration / Q000628:therapy; D016896:Treatment Outcome