View related articlesView Crossmark data increase [1,2]. However, there is still a lack of information for the Portuguese population for this issue. This exploratory study aimed to evaluate the relationship between patient perception of OHRQoL and the severity of dental malocclusion in a Portuguese sample. Materials and methods: This work was approved by the Egas Moniz Ethics Committee. This cross-sectional observational study involved patients that sought orthodontic treatment between January and April 2019, at the Orthodontic Care Consultation of Egas Moniz Dental Clinic (Monte de Caparica -Almada, Portugal). Exclusion criteria were patients with severe diseases, craniofacial abnormalities, cognitive deficits, caries, periodontal diseases, and previous orthodontic treatment history. A total of 19 patients were enrolled in the study. OHRQoL was assessed by application of the Oral Health Impact Profile -Portuguese validated version [3] and dental malocclusion through the Index of Complexity, Outcome and Need (ICON) [4]. Based on the ICON score, patients were categorised as: in need of treatment (ICON > 43) or not (ICON 43). Resulting data were submitted to descriptive and inferential statistical analysis. Results: The sample included 7 (37%) males and 12 (63%) females, with a mean age of 27.9 years. Overall OHIP-14 score ranged from 0 to 49 and ICON score from 13 to 75 (9 (47.4%) subjects with ICON > 43 and 10 (52.6%) with ICON 43). Total OHIP-14 score and all seven median domain scores were not found to be significantly different (p ¼ .113 to p ¼ .968), when comparing both groups. Discussion and conclusions: OHRQoL was not found to be significantly different when considering the severity of dental malocclusion. Overall, results highlight a difference between patients' self-perception of clinical condition impact in OHRQoL when compared to a clinical expertise judgement.
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