Response shift in oral health‐related quality of life measurement in patients with partial edentulism

Abstract

The purposes of this study were to determine whether a response shift was observable after partial denture treatment and to identify the predictors that influenced the response shift magnitude and direction. A total of 173 consecutive patients with no more than eight missing teeth who received implant-supported, fixed or removable partial dentures at Okayama University Dental Hospital were asked to complete a full-version Oral Health-Related Quality of Life (OHRQoL) questionnaire before (pre-test) and after treatment (post-test). Additionally, a short form (then-test) consisting of seven questions selected from the full version had its reliability verified and was utilised to retrospectively assess the pre-treatment OHRQoL status. The difference between the summary scores of the then-test and the pre-test determined the response shift magnitude and direction. The then-test mean score (22·9 ± 6·6) was significantly lower (worse OHRQoL) than that of the pre-test (26·4 ± 5·2). The response shift effect size was of moderate magnitude and negative direction (d = -0·78). A multiple regression analysis showed that age (younger patients) (P < 0·01), number of replaced teeth (fewer) (P < 0·01) and pre-test scores (lower) (P < 0·01) were the significant predictors for response shift. In conclusion, a response shift phenomenon with negative and moderate effect size was observed after partial denture treatment. The significant predictor variables were young age, fewer numbers of replaced teeth and lower pre-test scores.

Patient‐reported outcome and its association with attachment type and bone volume in mandibular implant overdenture

“…Studies have also shown that simple comparison between before and after treatment score might show paradoxical findings because of variations in patient's internal standards of quality of life (Kimura et al 2012;Reissmann et al 2012). Such response shifts are considered crucial component in treatment outcome, as it might also affect the scoring pattern observed in our study over time.…”

“…Studies have also shown that simple comparison between before and after treatment score might show paradoxical findings because of variations in patient's internal standards of quality of life (Kimura et al. ; Reissmann et al. ).…”

Oral health‐related quality of life of removable partial denture wearers and related factors

“…Kimura et al found younger patients treated with RPD have less OHRQoL. Such outcome could be attributed to higher social demand and self-concerns with aesthetics and oral function in comparison with older patients (18). On the other hand, older patients are more experienced to function with missing teeth (19).…”

Impact of mandibular implant prostheses on the oral health‐related quality of life in partially and completely edentulous patients

“…; Kimura et al. ). OHRQoL is an effective and widely used instrument to measure the impact of treatment from the patients' point of view.…”