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INSTRUMENTS FOR ASSESSMENT OF OROFACIAL AESTHETICS, OROFACIAL FUNCTION, AND ORAL HEALTH RELATED QUALITY OF LIFE

Contact person: Pernilla Larsson
Responsible: Thomas List
Co-workers: Krister Nilner
Partner: Richard Ohrbach, University at Buffalo, USA Mike John, University of Minnesota,USA
Funding: Folktandvården i Östergötland
Timeframe: 2007-02-19 -- 2010-03-26
Research profile: Oral hälsa
Faculty/Department: Faculty of Odontology
Subject: Odontologi

The overall aim of this thesis was to develop methods to measure the concepts orofacial aesthetics, orofacial function, and oral health related quality of life (OHRQoL).
1). To translate Oral Health Impact Profile (OHIP) instrument into Swedish and evaluate reliability and validity of the Swedish version of the OHIP-S.
2). To develop a Jaw Functional Limitation Scale (JFLS) comprising three constructs and a global scale, based on the preliminary 8-item instrument, and to investigate content validity of the overall functional limitation construct, reliability, and generalizability.
3).To develop an instrument that measures self-reported oral aesthetics in patients with prosthodontic concerns.
4). To evaluate the reliability and validity of the Orofacial Aesthetic Scale (OAS) scores, in patients with prosthodontic concerns.
5). To (i) determine orofacial aesthetics in the adult general Swedish population, (ii) derive normative values for the OAS.

The reliability of the OHIP-S appears to be good and the validity acceptable. The instrument can differentiate between groups of patients with different kinds of functional limitation and healthy individuals. We recommend use of the OHIP-S in future studies.

A new organ-specific instrument, the JFLS-20, was developed and found to exhibit good reliability and validity for three constructs assessing limitations in mastication, jaw mobility, and verbal and emotional expression, augmenting the use of JFLS-8 for assessment of global functional limitation. The instrument is therefore recommended for both clinical and research use in patient groups with varying functional limitations of the jaw.

To measure orofacial aesthetics in patients with prosthodontic concerns is challenging in terms of scope and burden of assessment as well as comparability of findings with future assessments of the same patient and with other patients. The Orofacial Aesthetic Scale might provide a standardized approach with minimal burden to the patient and the health care professional. It may serve as an overview, suitable for use in daily practice as well as in research settings, about the magnitude and the components of the prosthodontic patient´s aesthetic impairment.

The Orofacial Aesthetic Scale was developed especially for prosthodontic patients and exhibits good score reliability and validity. We can therefore recommend the instrument for clinical and research use in prosthodontic patient groups.

The scores of the Orofacial Aesthetics Scale, shown valid and reliable in prosthodontic patients, is now also presented as national norms providing information of orofacial aesthetics in the adult Swedish population.

Larsson P, List T, Lundström I, Marcusson A, Ohrbach R. Reliability and validity of Swedish version of the Oral Health Impact Profile. Acta Odontol Scand 2004;62:147-152

Ohrbach R, Larsson P, List T. The Jaw Functional Limitation Scale: Development, reliability, and validity of 8-item and 20-item. Journal Orofacial Pain 2008. J Orofac Pain. 2008;22 :219-30.
Larsson P, John MT, Nilner K, Bondemark L, List T. Development of an Orofacial Aesthetic Scale in Prosthodontic Patients. Accepted for publication Int J Prosthodontics
Larsson P, John MT, Nilner K, List T. Reliability and Validity of an Orofacial Aesthetic Scale in Prosthodontic Patients. Accepted for publication Int J Prosthodontics

Senast uppdaterad av Magnus Jando