## 4 Discussion  
Quality of life (QoL) assessment has an important place in health care and has proven to be an endpoint in clinical studies conducted recently. The effects of illness on QoL can be related to the impairment, disability, and handicap models of disease [20]. QoL is considerably interlinked with oral health status. OHRQoL mainly focuses on those characteristics of human life that are affected by dental care and oral health [5]. Poor oral health produces impaired OHRQoL. The clinical manifestation of DS that develops with denture use has been shown previously to have a negative impact on OHRQoL [21]. This study assesses the effect of photobiomodulation therapy on OHRQoL in denture stomatitis patients. The outcome of the study accepts the working hypothesis. The present study focused on the examination of OHIP-EDENT questionnaire items to evaluate both poor and improved oral health-related quality of life in patients with DS treated with PBM (with a gallium-aluminum-arsenide (GaA1 As) diode laser). The score of various domains in the OHIP-EDENT scale was better in the post-treatment phase compared to the pre-treatment period. This finding was in accordance with previous results, as shown by [PERSON] et al. [19], where a-PDT was applied to treat DS patients. This study could not be compared with the current study in a true sense, as a subjective assessment of OHRQoL was not performed. A quality of life analysis post-treatment has been used with removable dentures, fixed partial dentures, dental implants, and oral hygiene by various investigators [1; 6; 21], but data on the photobiomodulation (PBM) management of DS patients are not available. The OHIP-EDENT scale items were divided into seven theoretical domains, namely functional limitation, pain, psychological discomfort, physical disability, psychological disability, social disability, and handicap [22]. In this study, oral health-related quality of life was better in patients treated with PBM. The functional limitation score of 10.87 \(\pm\) 3.83 was promising, obtained after PBM application, and its difference from the pretreatment scores was significant. Similarly, the physical pain, psychological discomfort, physical disability, and social disability scores were better post-PBM in both the denture and tissue applications, which explained why function, physical symptoms, and psychosocial symptoms significantly improved in the second round of PBM application by day 30 and onwards. This was well supported by the reduction in the CFU count on the denture surface. The CFU count was reduced by a factor of 10 from the baseline to day 60. The psychological disability and handicap scores of the patients were not improved after PBM application, and the mean scores were found to be similar. This finding was similar to studies conducted by [PERSON] et al. [23] and [PERSON] et al. [24], where patients with stomatitis were managed with steroids and immunosuppressive drugs. They found improvements in the quality of life of patients suffering from [PERSON]'s disease and recurrent aphthous stomatitis. However, the lack of data on OHRQoL assessment in stomatitis patients with PBM application does