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Clinician/Patient-Reported Outcomes and Their Association After Root Canal Treatment
Jasmine Wong1, Angeline Hui Cheng Lee1, Gary Shun Pan Cheung2
1Faculty of Dentistry, The University of Hong Kong, Hong Kong SAR.
Introduction:
The relationship between clinician-reported outcome measures (CROM) and patient-reported outcome measures (PROM) after root canal treatment is poorly understood. Oral health-related quality of life (OHRQOL) is a crucial PROM. Determination of the minimal important difference (MID) is critical for determining patients' perspective of treatment effectiveness, but the MID required to perceive any meaningful change in the OHRQOL after root canal treatment remains unclear. The aim of this prospective study was to investigate the relationship between the clinical outcome and OHRQOL after root canal treatment and to determine the corresponding MID values.
Methods:
Patients (N = 64) requiring primary nonsurgical root canal treatment were recruited. Clinical and radiographic (cone-beam computed tomography) assessment of treatment outcomes was performed at the 12-month follow-up. OHRQOL and pain were evaluated preoperatively and at the 12-month follow-up using the Oral Health Impact Profile-14 and visual analog scale, respectively. P < .05 was considered statistically significant. MID was assessed using distribution- and anchor-based approaches.
Results:
The final analysis included 47 patients. The clinical outcome was favorable for 92.6% of teeth. OHRQOL and pain showed significant improvement after treatment (P < .001). No significant association was found between clinical outcome and OHRQOL (P > .05). The mean Oral Health Impact Profile-14 score change (ie, 13.6) was greater than the range of MID values determined.
Conclusions:
Root canal treatment significantly improves OHRQOL. Improvement in the OHRQOL score was greater than the MID values determined, implying a clinically significant change. However, PROM (OHRQOL) does not appear to be correlated with CROM.
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