Background: The oral health-related quality of life indicators are increasingly used to measure the impact of the oral conditions on quality of life. One of the most used indicators is the Oral Health Impact Profile (OHIP-14), but it has never been applied in Iran. The aim of this study was to validate the usage of OHIP-14 among Iranians.Methods: A cross-sectional study was performed in Kerman (Iran). A consecutive sample (n= 400) of the Kerman Dental School Clinics attending patients participated in this study. All participants self-completed the translated OHIP-14. Reliability analyses, validity tests, and responsiveness were carried out to evaluate the psychometric properties of the OHIP-14.Results: The reliability coefficient (Cronbach's alpha) of the OHIP-14 was above the recommended 0.7 threshold and considered excellent (alpha: 0.85). The coefficient of the test-retest reliability measured by ICC was 0.88 (CI 95%: 0.80- 0.93). Poorer oral condition was strongly associated with OHIP scores of the patients, supporting construct validity. Moreover, for evaluation of responsiveness, the ES was measured to be 0.43 and the SRM was 0.67.Conclusions: The Persian version of OHIP-14 is a precise, valid and reliable instrument for assessing oral health-related quality of life among Persian population.

Background: The need for assessment of oral health related quality of life has been increased over the last decades. The aim of this study was to develop a Persian version of the Oral Health Impact Profile (OHIP) -14 and to evaluate its reliability and validity for its use in Persian-speaking communities.Methods: The original version of the OHIP-14 was translated into the Persian language using the back-translation technique. To establish the reliability of the translated instrument, internal consistency and test-retest reliability trials were performed on 20 subjects (at 4-week intervals); Cronbach‘s alpha was used. One hundred sixty adults over 50 years of age who attended Health Care Centers in Sari and Babol were recruited to fill out the questionnaires and received a clinical examination by a single dentist. The socio­ demographic and oral health information was also collected.Results: The test-retest reliability was excellent (Cronbach‘s alpha=0.095). In the main study, Cronbach's reliability coefficient for all 14 questions in each dimension was more than 70%. The individuals in need of dental treatment showed significantly higher OHIP scores than the individuals not requiring treatment. The individuals with hopeless teeth, negative self-perceived oral had significantly higher OHIP scores.Conclusion: The Persian version of the OHIP-14 is a comprehensive and accurate instrument with acceptable reliability and validity for measuring oral healthœrelated quality of life.

Background and objectives: Oral health impact profile index (OHIP-14) is considered one of the most famous and reliable known strategies for identifying and evaluating various aspects of the quality of life associated with oral health. In spite of the developmental studies in this field, very few studies have implant-dependent prostheses recipients are a community of their own. In the present study, which is conducted in Iran for the first time, we intend to study the effect of using implant-dependent prostheses on the quality of life during 6 and 12 weeks. Materials and methods: The research was a descriptive cross-sectional study in which 126 patients referred to a number of dental clinics. The Implant-based Treatment Plan was considered for their prosthetic treatments. They are interviewed before the start of the treatment process and respond to questions from the OHIP-14 questionnaire. In addition, after the relative improvement of the site of implant surgery, the questionnaire was reinstated by the patients before the process of prosthetic rehabilitation was started. In the next stage, after receiving the prosthesis, after 6 weeks and then 12 weeks, the questionnaire was completed again. Results: The mean score of the questionnaire before the treatment was 39. 17, after the surgical stage, 41. 47, six weeks after the delivery of the prosthesis 30. 15 and 12 weeks after the delivery of the final prosthesis was 27. 87. The average of the total scores varied in different stages, increasing between the first and second stages, and then decreasing further, and the difference between the mean of the total scores in these sections was significant (P < 0. 0001). In other words, the quality of life associated with oral health in postoperative patients decreases somewhat and will increase significantly in post-delivery delivery of the final prosthesis. Conclusion: In conclusion, an increase in quality of life was observed after the completion of prosthetic reconstruction in all domains of OHIP-14. The patients with prosthesis receiving more than three units generally have better results in physical scales.

Background: Today, the impact of oral health on indicators of quality of life is of great importance. As few studies have evaluated dental students who are future dentists of a society, this study was performed to assess the impact of awareness on oral health-related quality of life on first, third-and sixth-year Shahid Beheshti dental students in 2017-2018. Methods: This descriptive cross-sectional and analytical study was conducted on 220 Shahid Beheshti dental students. The required data was collected by using a sociodemographic questionnaire (including gender, academic year indicating level of awareness, and GPA) and Persian version of oral health-related quality of life questionnaire, OHIP-14. The questionnaires’ scores were compared by one-way analysis of variance (ANOVA) or Welch’s t-test. Results: The average total score of OHIP-14 questionnaire in dental students was 8. 26 (SD=7. 41). A significant relationship between the academic year and oral health-related quality of life was not noticed except in “Psychological Discomfort” domain where oral health-related quality of life deteriorated with an increase in the academic year (p=0. 0001). Conclusion: Oral health-related quality of life in dental students did not change significantly with an increase in the academic year except in “Psychological Discomfort” domain.

Background: Reconstruction of teeth using partial or complete dentures is the only treatment for most edentulous patients. The duration of edentulism and the use of complete dentures can affect the patient’, s quality of life. Therefore, this study aimed to evaluate the quality of life associated with oral health in patients referring to the Prosthodontics Department, School of Dentistry, Sari, Iran. Methods: In total, 235 patients treated in the Prosthodontics Department, School of Dentistry, Sari, Iran were selected and studied in this descriptive-analytical cross-sectional study. The required information was collected using the Oral Health Impact Profile-14 questionnaire (OHIP-14). Data were analyzed through SPSS22 and using descriptive and analytical tests, such as Mann-Whitney, t test, one-way analysis of variance, and multivariate regression. Results: In total, 103 men (43. 8%) and 132 women (56. 2%) with mean age of 58 ±,10. 3 years participated in this study. The duration of denture use was between 3 and 108 months. The mean score of patients’,quality of life had a statistically significant relationship with the type of treated jaw, the type of removable prosthesis, and the duration of prosthesis use (P < 0. 05). However, no statistically significant relationship was observed between the mean score of quality of life with age and gender (P > 0. 05). Conclusion: Based on the obtained results, the quality of life was higher among those who used dentures for a longer period of time and also in patients with complete dentures. However, the quality of life was lower in people who used mandibular dentures, compared to other groups.