Needs assessment and research priorities in the oral and dental health with health promotion approach in Iran
Esmail Rafie1, Mazyar Karamali1, Mohammadkarim Bahadori2, Mohsen Yazdanian1, Ramin Ravangard3
1 Research Center for Prevention of Oral and Dental Diseases, Baqiyatallah University of Medical Sciences, Tehran, Iran
2 Health Management Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran
3 Health Human Resources Research Center, School of Management and Information Sciences, Shiraz University of Medical Sciences, Shiraz, Iran
|Date of Submission||06-Sep-2018|
|Date of Acceptance||27-Jan-2019|
|Date of Web Publication||14-May-2019|
Dr. Mohammadkarim Bahadori
Health Management Research Center, Baqiyatallah University of Medical Sciences, Tehran
Source of Support: None, Conflict of Interest: None
BACKGROUND: Today, the scope of dental activities is a broad range from the needs assessment for epidemiological studies to the implementation of comprehensive programs for the prevention of oral diseases at various levels of the society. This study aimed to identify and prioritize the need researches in the field of oral and dental health in a dental hospital in Tehran, Iran.
METHODS: This applied research was a mixed methods study carried out in Tehran, Iran, in 2018. The data gathering tool included a data collection form used for reviewing the documents, a semi-structured interview, and an open questionnaire. MAXQDA 10.0, Expert Choice 11.0, and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) software were used for analyzing the collected data.
RESULTS: After analyzing the results of the qualitative phase, 171 research topics in 6 areas were obtained, including 44 topics in “dental clinical care and treatment,” 37 topics in “health and prevention,” 19 topics in “education and health promotion,” 37 topics in “management of dental care delivery,” 16 topics in “policy and its requirements,” and 18 topics in “dentistry materials, equipment and technologies.”
CONCLUSION: According to the results, it can be recommended that the research resources should be allocated based on the priorities identified by the present study so that the studied hospital has the highest dynamic performance in achieving its goals and objectives.
Keywords: Analytical hierarchy process, dental health, dental hospital, oral, research needs assessment, Technique for Order of Preference by Similarity to Ideal Solution
|How to cite this article:|
Rafie E, Karamali M, Bahadori M, Yazdanian M, Ravangard R. Needs assessment and research priorities in the oral and dental health with health promotion approach in Iran. J Edu Health Promot 2019;8:93
|How to cite this URL:|
Rafie E, Karamali M, Bahadori M, Yazdanian M, Ravangard R. Needs assessment and research priorities in the oral and dental health with health promotion approach in Iran. J Edu Health Promot [serial online] 2019 [cited 2019 May 23];8:93. Available from: http://www.jehp.net/text.asp?2019/8/1/93/258136
| Introduction|| |
Oral and dental health has been considered as an essential component of public health, and the findings of various studies have confirmed its relationship with physical, psychological, and social dimensions of health. Given the relationship between oral diseases and the lifestyle and quality of life, it can be said that oral health affects various dimensions of the individuals' life.,,, Oral and dental problems are paid special attention in public health and prevention dentistry for many reasons. These diseases are almost universal and rarely can be found anyone who has not been affected by them throughout his/her lives.
Providing oral health services in dental centers and hospitals around the world faces many problems. Insufficient specialists, resource constraints such as limited financial and workforce, patients' issues, and lack of basic required infrastructure are some barriers to the provision of oral health care for the community. Equity in the access to health-care facilities for all people in order to maintain and promote their health can be ensured if the health-related systems conduct needs assessment studies on the issues and problems of the target community.,
Understanding the needs provides a good opportunity for designing targeted programs to meet the desired needs. In this regard, the patient-centered approach and studying the outcomes of personal and social problems resulting from oral and dental diseases have been paid special attention. However, in the past, because of the information gap between the patients and dentists, the disease biomedical and specialist-focused approach was dominant. Therefore, the scope of dental activities is a broad range from the needs assessment for epidemiological studies to the implementation of comprehensive programs for the prevention of oral diseases at various levels of the society.,
Conducting researches in the field of health by producing new knowledge through better science and technology and providing evidence-based decision-making not only improves lifestyles and promotes health but also is a necessity for social and economic development. Therefore, it seems that the first step in achieving sustainable development is to understand the urgent need to advance the researches on health., Considering the need for a logical link between researches and needs, first, problems should be identified, and then, given the resource constraints, the research priorities should be determined., Today, many experts and scholars believe that the researches are the basis for new knowledge creation and have a special role in solving problems with which a system faces.
According to Bader et al., given the financing the researches in the field of dentistry, it is expected that the findings lead to significant improvements in oral health. Unfortunately, studies carried out in the field of oral and dental health, in comparison with those in other fields of medical and health sciences, are not in line with the actual and practical needs because dental literature is influenced by observational studies, short-term studies, surveys, and technical reports. On the other hand, the reason for the lack of researches in this field is often related to the budget constraints. For instance, the Australian National Health and Medical Research Council annually approves nearly $ 700 million for conducting health and medical researches, and despite the costs of dental care, for example, $ 9 billion in 2013, the dental research budget has not mentioned as a priority area. While between 2011 and 2015, cancer, mental health, diabetes, and cardiovascular diseases have received the largest share of this budget.,
The results of the Celeste et al.'s study show that the focus of oral and dental health researches has been on the tooth decay and children and adolescents' health care, and in recent years, the focus of such studies on the health behaviors, health education promotion, quality of life, and socioeconomic factors has increased. Due to the diversity and scope of health issues and also resource constraints, it is impossible to work in all these areas and to meet all the research needs of the community., On the other hand, Chalmers and Glasziou in their study state that almost 85% of investment in the research field is wasted because of the lack of prioritization and low compliance with stakeholders' needs. The proper prioritization of future researches will increase the value of research, especially at the time of resource constraints. It is also argued that the necessity of prioritizing researches is to systematically promote the scientific basis of each field and stimulate and direct national and institutional research efforts.
Determining research priorities is a dynamic process in which many organizations and institutions involve and is known as a method for resource allocation.,, The needs assessment approaches and research prioritization techniques such as the Delphi method, analytical hierarchy process (AHP), and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) as some tools for the research planners are being expanded and used.,,
One of the vital and sustainable indicators of research priority setting is to have an explicit strategy and a clear framework based on which the research achievements are monitored. What is important in the needs assessment process is the agreement of all stakeholders on the list of priorities which should ideally be provided with the participation of stakeholders and users such as decision-makers, policy-makers, and managers.,,,,, Choosing a suitable model can facilitate and increase the accuracy and credibility of the needs assessment process. This study aimed to identify and prioritize the required researches in the field of oral and dental health based on a goal- and health-oriented hybrid approach with the participation of all stakeholders in a dental hospital in Tehran, Iran, in 2018.
| Materials and Methods|| |
This was an applied and mixed methods study carried out in two successive qualitative and quantitative phases in a dental hospital in Tehran, Iran, in 2018. [Table 1] summarizes the study processes and methods and tools used for collecting and analyzing data in each phase.
The study sample consisted of library documents (15 documents), as well as 70 stakeholders and patients of the dental hospital in Tehran selected using the purposive sampling method. A list of stakeholders was determined using the guidelines of the Council on Health Research for Development (COHRED) in two main groups of service providers (25 experts, policy-makers, and managers) and service recipients (45 patients).
In the qualitative phase, the data gathering tool included a data collection form used for reviewing the documents, a semi-structured interview manual, and an open questionnaire. In order to determine the most important issues and the current and future needs in the field of oral and dental health in the studied dental hospital, review of documents and semi-structured interviews with 10 service recipients and providers were conducted and also the required data were collected using a researcher-made open questionnaire filled out by 60 study samples. The questions of the interviews and the open questionnaire were designed based on the goal-oriented and health-oriented hybrid approach, and the qualitative method was used to approve the face validity of the questionnaire. The initial questionnaire was sent to five university experts and the studied dental hospital managers. The experts' opinions were taken to examine the level of difficulty in understanding the phrases and words, assess the appropriateness of the items and their relationships, and determine the likelihood of ambiguity and insufficient perceptions of the phrases and words and their meanings, and some minor changes were made to the questionnaire. The interviews were recorded by a tape recorder, and to minimize bias and errors, conducting all interviews and processing and analyzing data were done only by one person. On average, each interview lasted 62 min.
The qualitative results were analyzed using MAXQDA 10.0 software through deductive (directed) content analysis method. In this method, the codes and themes are determined using the systematic classification process, in which the main categories and codes are identified based on the available theory, conceptual model or framework, previous studies of the researchers, and the results of previous studies in the studied field.,
After analyzing the interviews and the responses to the questionnaire's items in the qualitative phase, the most important issues related to the dental and oral health and the challenges of the studied dental hospital were determined, and the required research topics were identified using the hybrid approach.
In the quantitative phase, the topics of each dimension were determined in a separate questionnaire and by getting the experts and stakeholders' opinions. Each research topic was determined and its importance was identified according to the scoring criteria based on the COHRED criteria, including the alignment with the policies and objectives of the studied dental hospital, feasibility, time priority, applicability of the results, and the scores considered, i.e., “1 = not important” to 5 = extremely important.” The AHP was used to weigh the criteria.
The researchers first designed the hierarchical tree and weighted the criteria using the AHP technique. Finally, research topics were ranked based on their level of importance using TOPSIS, which is one of the multiattribute decision-making (MADM) techniques. In this method, n options are evaluated by m indexes. This technique is based on the notion that the selected option should have the least distance from the positive ideal solution (the best possible solution) and the maximum distance from the negative ideal solution (the worst possible solution). In other words, the distances between a factor and the positive or negative ideal solutions, which are the criteria for ranking and prioritizing the studied factors, are assessed. Given the unique features and capabilities of some MADM techniques, some experts and scientists have used the AHP and TOPSIS techniques in the research processes.,,, The proposed topics were given to the studied hospital experts and managers in the form of a researcher-made questionnaire in order to prioritize them based on the criteria. In the quantitative phase, Expert Choice 11.0 and TOPSIS software were used.
The present study was approved by the Ethical Committee of Baqiyatallah University of Medical Sciences (Ethical Code: IR.BMSU.REC.283). Written informed consent was obtained from all participants in this study, and all of them were assured of the confidentiality of their information, characteristics, and responses.
| Results|| |
The results showed that most of the participants were male (62.9%), whose mean ages were 44 ± 5 in the service providers and 37 ± 5 in the recipients. The majority of the service providers had a PhD degree (32%), and most of the service recipients had a BSc's degree (35.56%). After analyzing the results of the qualitative phase, including the analyses of interviews, responses to the questionnaire's items, and participants' viewpoints on the problems and future of the oral and dental health and the challenges of the studied dental hospital, 171 research topics in 6 areas were obtained [Figure 1].
The studied COHRED criteria were weighted and ranked using the AHP technique as follows: alignment with the policies and objectives of the dental hospital, applicability of the results, time priority, and feasibility with the score of 0.347, 0.296, 0.261, and 0.096, respectively.
On the basis of weighted criteria, the research topics in each dimension were ranked using TOPSIS technique. The results of ranking research topics in each six areas from the studied experts and stakeholders' viewpoint showed that “Reviewing the status of evidence-based dentistry (EBD)” (CL: 0.714) in the dimension of dental clinical care and treatment, “Development of the protocols for the oral health and prevention of dental diseases in specific patients such as the diabetics, etc.” (CL: 0.726) in the dimension of health and prevention, “Study of the dentists' training and education effects on the oral health of dental hospital patients” (CL: 0.716) in the dimension of education and health promotion, “Designing a comprehensive pattern for evaluating the satisfaction of dental care recipients” (CL: 0.734) in the dimension of management of dental care delivery, “Development of standards for evaluating and assessing the health-oriented dental hospital” (CL: 0.665) in the dimension of policy and its requirements, and “The health technology assessment (HTA) study of using laser technology in dental treatments” (CL: 0.705) in the dimension of dentistry materials, equipment and technologies had the highest ranks. The first four research topics in each dimension have been presented in [Table 2].
|Table 2: Technique for Order of Preference by Similarity to Ideal Solution ranks of the oral and dental health research topics in each studied dimension|
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| Discussion|| |
Needs assessment is considered as the first step in understanding and identifying problems., A large part of the research planning process is devoted to the research needs assessment. In a strategic needs assessment, the external and internal factors affecting the organization's performance are examined, and the gaps between the current and desired situations are identified. Filling this gap is essential for the long-term success of an organization. In the present study, six areas and 171 research topics were determined and prioritized based on the strategic plan of the dental hospital for the development of health-oriented dentistry, as well as the macro-organizational, supraorganizational, and national orientations. The strength of the present study is to assess the needs and provide the long-term solutions for the existing issues or new functional needs and solve the problems that affect the core processes of product development and service delivery.
Various approaches are used to assess the needs. Although these approaches vary and different methods are used to obtain the necessary information in each approach, it is important that the methods should appropriately be selected. Shirinbak et al., Ajjawi et al., Bahadori et al., Kolahi et al., and Malekafzali et al. determined the research priorities of different fields and organizations through applying different methods. Considering the recommendations in recent studies for the use of hybrid approaches and the great use of them in recent years, in the current study also, a hybrid approach was used for needs assessment and prioritization of the required researches based on the studied dental hospital's vision and objectives.
Priority setting is an important process in the management of health researches in the countries, whose importance will be double when financial and human resources are limited. One of the important reasons for priority setting is that it is known as a resource allocation method. What is currently visible in many organizations is the complexity and difficulty of decision-making in the field of researches so that there is a growing pressure on research organizations to improve the efficiency and effectiveness of their research programs.
In the process of research needs assessment, after identifying research needs and setting priorities, a specific budget should be allocated to the research projects based on the certain criteria, the most important one of which can be the importance and role of researches in solving problems, aligning with goals, removing the concerns of interest groups and organizations, and cost-benefit analyses.,
In the Akhavan Moghadam et al.'s study, some criteria such as time priority, applicability of the results, alignment with the organizational goals and objectives, feasibility, and helping to encourage the scientific development of medical faculties were used to prioritize the research topics. Furthermore, Bahadori et al. in their study used the criteria of time priority, applicability of the results, alignment with the organizational goals and objectives, and feasibility. In the present study, first, the criteria for prioritizing were determined using literature review, the COHRED criteria framework, paying attention to the studied hospital's missions and goals, and the experts' opinions, and then, the ranking of research topics was done using the MADM model. In the Montibeller et al.'s study, the MADM has been mentioned as an effective tool for prioritizing research projects.
According to the results, in the dimension of dental clinical care and treatment, “Reviewing the status of evidence-based dentistry (EBD)” and “Study of the common dental clinical errors and their causes at the studied dental hospital” were the high priorities. The results of the Haghgoo and Rasouli's study (2016) showed that the how treatment was managed (41.7%) and the lowest percentage of complaints were about the dentist's diagnosis and treatment plan (2.9%), which were in accordance with the results of the present study, in which the dental errors and their management was the second priority in the dimension of dental clinical care and treatment.
In the current study and considering the important role of health, prevention, and health promotion and according to the health-oriented approach of the studied hospital and upstream organizational policies in two areas of “health and prevention” and “health education and promotion,” 53 research topics were determined and prioritized. The results of Akbari et al. study demonstrated that paying attention to the wide range of oral and dental care needs of the narcotic drug abusers and planning their dental treatment were essential. Based on the results of the present study, “Development of the protocols for the oral health and prevention of dental diseases in specific patients such as the diabetics, etc.” in the dimension of health and prevention was the first priority.
“Study of the dentists' training and education effects on the oral health of patients referred to the studied dental hospital” and “Vocational needs assessment of staff and dentists at the health-oriented dental hospital” were two high priority research topics in the dimension of education and health promotion in the present study, which is similar to the results of the Lee et al.'s study. Some results of Mohebbi and Esfandiyar's study on the teaching and providing community dentistry courses for dental students confirm the results of the present study. However, the results of another study showed that the educational materials related to the oral and dental health had a low percentage of mass media content in Iran and did not cover all educational needs in this area.
The research needs assessment approach in the present study was to pay attention to the needs of the target population, and accordingly, “Designing a comprehensive pattern for evaluating the satisfaction of dental care recipients” in the dimension of management of dental care delivery has the highest priority, which is line with the results of the Daryazadeh et al. study.
Some results of the present study in the dimension of management of dental care delivery in the field of dentists' practical experiences are similar to the results of the Kopycka-Kedzierawski et al.' study. The results obtained in the dimension of dentistry materials, equipment and technologies are consistent with those of the Dziedzic et al.'s study. In this dimension, one of the high priority topics was “Study of the use of stem cells in the root canal therapies,” which was similar to the results of the Miran et al.' study.
| Conclusion|| |
Research needs assessment is the key point and the beginning of the research management process. Determining research priorities plays an important role in preventing waste of resources and conducting researches based on the real needs. The research topics prioritized in the present study, based on the studied hospital's strategic goals and policies, can meet the mission of service development and can be dynamic to fulfill the health-oriented dental missions. Finally, it can be recommended that the research resources should be allocated according to such priorities so that the studied hospital has the highest dynamic performance in achieving its goals and objectives.
This article was extracted from a research project approved by the Baqiyatallah University of Medical Sciences (Ethical Code: IR.BMSU.REC.1396.686). The researchers would like to thank all the managers and experts working in the studied dental hospital for their kind cooperation with the researchers in collecting and analyzing data.
Financial support and sponsorship
Conflicts of interest
There are no conflicts of interest.
| References|| |
Whelton H, Fox C. Advances in the prevention of oral disease; the role of the international association for dental research. BMC Oral Health 2015;15 Suppl 1:S8.
Rahmati-Najarkolaei F, Rahnama P, Fesharaki M, Yahaghi H, Yaghoubi M. Eterminants of dental health behaviors of Iranian students based on the health belief model (HBM). Shiraz E Med J 2016;17:7-8.
Salehimehr G, Nobahar S, Hosseini-Zijoud S, Yari S. Comparison of physical & chemical properties of angelus mta and new endodontic restorative material. J Appl Pharm Sci 2014;4:105-9.
Kumar S, Gupta A, Dixit A, Solanki K, Balasubramanyam G, Duraiswamy P, et al.
Factors that effect dental caries status of medical students in Udaipur city, India. Int J Dent Hyg 2010;8:110-5.
Shirinbak I, Basir Shabestari B, Mokhtari H. Assessment of dental treatment needs in chemically veterans in Zanjan, Iran. J Mil Med 2017;19:468-75.
Tong D, Dawson J, Love R. Factors affecting oral health status in an elderly military veteran population in New Zealand. J Mil Vet Health 2010;18:12-7.
Vahedian-Azimi A, Alhani F, Goharimogaddam K, Madani S, Naderi A, Hajiesmaeili M. Effect of family-centered empowerment model on the quality of life in patients with myocardial infarction: A clinical trial study. J Nurs Educ 2015;4:8-22.
Nilchian F, Skini M, Jabbarifar SE, Soheilipour Sh. Identification of educational needs to promote oral health from the standpoint of patients referring to Shariati dental clinic in Isfahan: A qualitative research. J Isfahan Dent Sch 2012;5:790-7.
Shabestari SB, Shirinbak I, Azadarmaki R. A comprehensive look at oromaxillofacial and laryngopharyngeal cancers. Cancer Genetics and Psychotherapy. Cham: Springer; 2017. p. 531-87.
Bahadori M, Izadi M, Karamali M, Teymourzadeh E. Research priorities in a military health organization using multi-criteria decision making technique. J Mil Med 2014;16:34-77.
Bahadori M, Teimourzadeh E, Farzaneh A, Nejati M. Prioritizing research needs: Insights from a healthcare organization in Iran. Arch Pharm Pract 2011;2:135-40.
Jones B, Lightfoot A, De Marco M, Isler MR, Ammerman A, Nelson D, et al.
Community-responsive research priorities: Health research infrastructure. Prog Community Health Partnersh 2012;6:339-48.
Ramelet AS, Gill F; ACCCN Paediatric Intensive Care Special Interest Group. A delphi study on national PICU nursing research priorities in Australia and New Zealand. Aust Crit Care 2012;25:41-57.
Bader J, Ismali A, Clarkson J. Evidence-based dentistry and the dental research community. J Dent Res 1999;78:1480-3.
Estai S, Bunt Y, Kanagasingam M. Tennant, Dental research: Quality and sustainability. Br Dent J 2017;222:323.
Oakley M, Vieira AR. The endangered clinical teacher scholar: Will this eliminate discovery from the dental school environment? J Dent Res 2008;87:200-2.
Celeste RK, Broadbent JM, Moyses SJ. Half-century of dental public health research: Bibliometric analysis of world scientific trends. Community Dent Oral Epidemiol 2016;44:557-63.
Kolahi A, Sohrabi M, Abdollahi M, Soori H. Setting research priority in Shahid Beheshti University of medical sciences: Methods, challenges, limitations. Pejouhandeh 2010;15:143-51.
Chalmers I, Bracken MB, Djulbegovic B, Garattini S, Grant J, Gülmezoglu AM, et al.
How to increase value and reduce waste when research priorities are set. Lancet 2014;383:156-65.
Chalmers I, Glasziou P. Avoidable waste in the production and reporting of research evidence. Lancet 2009;374:86-9.
Dechartres A, Ravaud P. Better prioritization to increase research value and decrease waste. BMC Med 2015;13:244.
Forrest JL, Spolarich AE. A delphi study to update the American dental hygienists' national dental hygiene research agenda. J Dent Hyg 2009;83:18-32.
Ghaffar A. Setting research priorities by applying the combined approach matrix. Indian J Med Res 2009;129:368-75.
] [Full text]
Sibbald SL, Singer PA, Upshur R, Martin DK. Priority setting: What constitutes success? A conceptual framework for successful priority setting. BMC Health Serv Res 2009;9:43.
Bahadori M, Ravangard R, Farzaneh A, Hakimzadeh S. Research needs assessment in the health insurance organization: Level of health care provider. Electron Physician 2009;3:436-41.
Ajjawi R, Barton KL, Dennis AA, Rees CE. Developing a national dental education research strategy: Priorities, barriers and enablers. BMJ Open 2017;7:e013129.
Dennis AA, Cleland JA, Johnston P, Ker JS, Lough M, Rees CE, et al.
Exploring stakeholders' views of medical education research priorities: A national survey. Med Educ 2014;48:1078-91.
Hodges BD, Albert M, Arweiler D, Akseer S, Bandiera G, Byrne N, et al.
The future of medical education: A Canadian environmental scan. Med Educ 2011;45:95-106.
Wilkinson TJ, Weller JM, McKimm J, O'Connor BJ, Pinnock RE, Poole PJ, et al.
Programmatic research in medical education: A national collaboration. N Z Med J 2010;123:24-33.
Palmer N, Batchelor P. Informing research in primary dental care: Setting priorities. Prim Dent Care 2006;13:85-90.
Bahadori M, Babaei M, Mehrabian F. Prioritization of factors influencing job motivation in employees of a military center using analytical hierarchy process (AHP). J Mil Med 2013;14:1-8.
Bahadori M, Ibrahimipour H, Farzaneh A. The challenges of supervision on providing health services from the viewpoint of the insurer: A qualitative study. Int J Collaborative Res Intern Med Pub Health 2012;4:1673-85.
Hsieh HF, Shannon SE. Three approaches to qualitative content analysis. Qual Health Res 2005;15:1277-88.
Wang J, Fan K, Wang W. Integration of fuzzy AHP and FPP with topsis methodology for aeroengine health assessment. Expert Syst Appl 2010;37:8516-26.
Lin C, Tsai M. Location choice for direct foreign investment in new hospitals in China by using ANP and TOPSIS. Qual Quant 2010;44:375-9.
Akhavan Moghadam J, Alishiri G, Lak M, Ghodarzi H, Madani SJ, Zarei A, Sohrabi A, et al.
Need assessment and priority setting of strategic researches for scientific development of a medical faculty. J Mil Med 2017;19:91-8.
Karimi G, Damari B, Gharabaghian A, Rahbari M, Vafaeean V, Salemi E. Assessment and research prioritiesof the Iranian blood organization research center. Sci J Iran Blood Transfus Organ 2005;2:123-34.
Gupta K, Sleezer C, Russ-Eft D. A practical Guide to Needs Assessment. San Francisco: Wiley; 2007.
Malekafzali H, Eftekhari MB, Peykari, N, Sadat Gholami F, Djalali nia Sh, Owlia P, et al
. Research assessment of iranian medical universities, an experience from a developing country. Iran J Public Health 2009;38:47-9.
Hung HL, Altschuld JW, Lee YF. Methodological and conceptual issues confronting a cross-country delphi study of educational program evaluation. Eval Program Plann 2008;31:191-8.
Montibeller G, Franco A, Lord E, Liglesias A. Struturing resource allocation decisions: A frameworke for buildingmulti-criteria portfolio models with area-grouped option. Eur J Oper Res 2009;199:846-856.
Haghgoo R, Rasouli R. Evaluation of dental complaints in tehran medical council between 2005 and 2012. J Dent Med Tehran Univ Med Sci 2016;29:144-50.
Akbari M, Makarem A, Hosseini F, Fazel A. Evaluation of oral health status and dental need assessment in narcotic drug abusers. J Mash Dent Sch 2015;39:191-200.
Lee C, Chen M, Powell M. Organisational change to health promoting hospitals: A review of the literature. Springer Sci Rev 2013;1:13-23.
Mohebbi S, Esfandiyar M. The effect of the theoretical course of community oral health on the oral health prevention knowledge, attitude and self-reported practice in dental school students at tehran university of medical sciences. J Dent Med Tehran Univ Med Sci 2012;24:245-51.
Soheilipour S, Saied-Moallemi Z, Ahmadi M. Evaluation of the mass media coverage of oral health-related issues in Iran in 2011-2012. J Isfahan Dent Sch 2014;10:262-75.
Daryazadeh S, Jafari A, Kuhpayehzadeh J, Shajari J. Evaluation of restorative treatment need in dental services: Based on community needs running title: Evaluation of restorative treatment need in dental services. Q J Sabzevar Univ Med Sci 2014;21:416-23.
Kopycka-Kedzierawski DT, Meyerowitz C, Litaker MS, Chonowski S, Heft MW, Gordan VV, et al.
Management of dentin hypersensitivity by national dental practice-based research network practitioners: Results from a questionnaire administered prior to initiation of a clinical study on this topic. BMC Oral Health 2017;17:41.
Dziedzic K, Zubrzycka-Wróbel J, Józwik J, Barszcz B, Siwak P, Chałas R. Research on tribiological properties of dental composite material. Adv Sci Technol Res J 2016;10:144-9.
Miran S, Mitsiadis TA, Pagella P. Innovative dental stem cell-based research approaches: The future of dentistry. Stem Cells Int 2016;2016:7231038.
[Table 1], [Table 2]