This exploratory qualitative study was undertaken at the Syrian Virtual University from April to June 2025. The modified Delphi technique was used to reach a consensus on the competencies for the undergraduate endodontics curriculum.

The consultation group included 5 Syrian members holding a PhD in endodontics and working in academic roles at various universities. Additionally, experts were either Syrians or held equivalent qualifications, possessed at least a specialist certificate (Syrian board) in endodontics, and they were currently actively involved in clinical, academic, and/or administrative practice inside or outside Syria.

The principal researcher (MS) developed a preliminary list of endodontic competencies based on a literature review [28-30]. Individuals' consultation meetings were then held via telephone or social media platforms, lasting at least 15 minutes each, and conducted at least twice with each consultant. These meetings reviewed the initial list of competencies, allowing for modifications and additions. The consultation meetings produced a final list of 54 competencies divided into 19 knowledge, 21 skills, and 14 attitude items. A structured questionnaire was developed using Google Forms, consisting of six sections: (1) an introductory letter explaining the study’s objectives, confidentiality assurance, participation instructions, and consent acknowledgement; (2) demographic data, including name, age, gender, nationality, workplace, years of experience, academic qualifications, and practice type; (3,4,5) the initial lists of knowledge, skills, and attitudes competencies in the third, fourth, and fifth sections, respectively; and (6) a free-text section for respondents to suggest additional competencies (Multimedia Appendix 1).

The Delphi methodology was conducted in 2 rounds to identify the essential endodontic competencies for undergraduate dental students in Syrian dental schools. The principal researcher MS invited 98 endodontists who met the expert panel criteria to participate, with 73 accepting the invitation. To ensure a national consensus, these experts represented dental schools from both public and private universities across Syria. Participants rated each competency on a 5-point Likert scale reflecting its importance: 1 (not important at all), 2 (not important), 3 (unsure), 4 (important), and 5 (very important). Consensus was defined as over 80% agreement or a mean score above 4.20 [25,31].

Strict deadlines were set to maintain study momentum while allowing participant flexibility with accountability to ensure a smooth and efficient progression through its phases [32]. The first Delphi round lasted 3 weeks, starting on May 2, 2025, with reminders sent to nonrespondents on the 5th, 10th, and 15th. Competencies scoring above 4.20 in the first round, along with those suggested through free-text comments, were included in the second round. The second round had a 2-week deadline, with reminders on days 5 and 10 for those who had not responded.

Data analysis was performed using the SPSS package (version 27; IBM Corp). The survey's reliability was assessed using Cronbach α, and descriptive statistics, including the mean, standard deviation, and standard error, were calculated.

Ethical approval was obtained from the research committee of the Syrian Virtual University (455/0, dated April 27, 2025). Informed consent was obtained from all participating consultants and experts before the study.

The findings of this study support a national consensus among experts regarding the core competencies required in endodontics at the undergraduate level in Syria. A set of 31 competencies was established, comprising 9 knowledge, 13 skills, and 9 attitudes.

There is no universally accepted definition of endodontic competency for the new general dentist [33]. Moreover, there are currently no national or international guidelines for undergraduate endodontic education specifying the essential materials and equipment that students should be competent in using [34]. This study was conducted to address that gap.

Developing a national or international framework for undergraduate endodontic education can help educators reach consensus and implement best practices in education and endodontics [29]. Clearly defining the required materials and equipment is crucial for standardized practical training [34]. The primary goal of undergraduate endodontic education is to produce competent clinicians who understand the basic science of endodontics and recognize limitations, ensuring safe general dental practice. Clinical training should also emphasize the appropriate use of treatment consent and case difficulty assessment [29], which were listed in the core competencies in this study.

While CBME shows promise, implementation faces real challenges: resistance to change, budget constraints, and difficulty assessing competencies like attitudes. To succeed, institutions should involve stakeholders in redesign efforts, pursue external funding, and employ diverse assessment methods—including observation and simulation—to evaluate competency development more comprehensively [35].

According to a systematic review, questionnaires are the most widely used tool for identifying required competencies in medical education worldwide [24]. This aligns with the approach taken in this study.

The Delphi technique is among the most widely used techniques for defining competencies in medical education, offering many advantages over other decision-making methods. It stimulates a sense of responsibility and supports acceptance of consensus outcomes, minimizing bias from dominant individuals. This enhances the reliability and validity of the required core competencies [15,25]. A modified Delphi method incorporating consultation meetings with endodontic consultants was preferred for its accuracy and efficiency in identifying initial competencies and selecting experts. These meetings were conducted individually to prevent the influence of more senior or dominant consultants on others' opinions. The survey’s results validated the consultation group, as all 27 excluded competencies were rated within the ”important“ range, except 3, which were in the ”unsure“ range. Notably, none of the 4 competencies proposed by participants in the first round were approved in the second round.

The diverse backgrounds of the participants contributed to a well-rounded and unbiased consensus on core endodontics competencies tailored to the needs of a Syrian society. Despite this diversity, the low standard deviation across both questionnaires indicates a strong agreement and minimal variation in opinions. The small standard error demonstrates that the mean ratings of the experts’ opinions closely matched the approved means (Table 2). Finally, Cronbach α results confirm the internal consistency and reliability of the survey in both rounds (Table 3).

Medical literature suggests a sample size of approximately 20 individuals for this type of study [36], though larger sample sizes tend to yield more accurate results [37]. In this study, the sample size was sufficiently large, with at least 38 participants, whereas most similar studies typically involve 15-30 participants [38].

While multi-round studies with large samples often struggle with declining response rates—potentially undermining consensus credibility—our study achieves more than 70% response rate (38 of 53 participants), which meets or exceeds the standard benchmark many researchers consider essential for robust consensus findings [39,40].

The use of an electronic questionnaire via Google Forms was chosen to save time, effort, and cost. Nair et al [41] suggested strategies to improve survey response rates, including sending reminders at specific time intervals, an approach that was successfully implemented in this study, resulting in significant increases in responses after each reminder. Two rounds were adopted because no new competencies were added in the second round, and less than 9% of competencies were excluded. Jünger et al [42] stated in his methodological study that most Delphi-based research is satisfied with 2 rounds, which aligns with the procedure followed in this study. The threshold for accepting a competency as essential (must know) was set at a mean score above 4.20. Jünger et al [42] explained that the researcher determines this cutoff based on the nature and objectives of the research. This approach is consistent with similar studies identifying core competencies within specific medical specialties [18,32,40].

Twenty competencies, representing 37% of those proposed by the researcher and consultants, were excluded after the first round—a notably large proportion. This is because the primary references used to develop these competencies, especially as reported by Baaij et al [28] from the ESE, do not differentiate between the basic competencies required in undergraduate versus postgraduate endodontics, as the vast majority of European countries do not recognize endodontics as a separate, independent specialty, but instead, they consider it as part of a general dentist's responsibilities [43,44]. Furthermore, these competencies were intended as recommendations for undergraduate endodontics curricula rather than essential competencies that students should master before graduation.

The [28] framework established 3 competency levels: be competent, have knowledge, and be familiar with. This study mirrors most ”be competent“ items, with 2 notable exceptions: managing uncertainty and maintaining pulp vitality were rated as “important“ by our expert panel. This distinction reflects expert opinion that these advanced competencies fall outside the general dentistry scope and are more appropriately reserved for endodontic specialists.

It is worth noting that 85% of the excluded competencies were still rated within the “important” category. These can be interpreted as important competencies for the student, and ”it is good to know,“ but they are not essential to master them at the undergraduate level.

By the end of the second round, 7 competencies were further excluded, including all 4 additional competencies suggested by participants. The remaining 3 competencies were close to the inclusion threshold for core competencies (Table 2).

Despite extensive research on identifying competencies in endodontics, no prior studies have directly addressed this topic comprehensively [29]. However, several institutions involved in medical and dental education such as the American Association of Endodontics, Association of Canadian Faculties of Dentistry, Canadian Medical Education Directives for Specialists, Commission of Dental Accreditation of Canada, ESE, General Dental Council, and the Saudi Commission for Health Specialties have provided guidelines for designing undergraduate or residency-level endodontic curricula.

The ESE recommended essential undergraduate endodontic competencies [28]. While this study identifies competencies that align closely with ESE's recommendations, the division of competency domains and the method of determining the competencies differ significantly. The ESE did not use a questionnaire nor distinguish between undergraduate and postgraduate endodontics, reflecting the absence of endodontic specialization in most European countries.

The study has some limitations that should be considered. Involving additional stakeholders such as students, patients, and health care or education administrators, through interviews rather than questionnaires, could enrich the findings but would also broaden the study's scope and complicate data analysis. So it would be preferable to build upon the results of this study, which relied on the endodontists’ opinions, with further studies targeting the views of other stakeholders to determine their needs and perspectives based on these findings.

Additionally, assigning numerical values 1-5 to responses may not capture the nuances of expert input; for example, a professor with more than 30 years of experience carries the same weight as a recent graduate. Nevertheless, including a range of perspectives across generations is important to ensure balanced and unbiased results. The high degree of harmony in opinions among the experts’ panel indicates an implicit agreement on the core competencies that a graduate should possess as a graduation requirement.

This study identifies the essential endodontics competencies for undergraduate education in Syria by using a modified Delphi method. Further studies involving a broader range of stakeholders should be considered to confirm the results. Additionally, developing an international framework for undergraduate endodontics competencies through collaboration with researchers worldwide would be beneficial. The final list of the identified competencies provides a framework for developing a formal competency-based endodontics curriculum for the undergraduate stage, which can assist students in achieving the required standards and advancing the adoption of CBME in Syria and other similar settings.

A similar study must be conducted to identify the core competencies required for the postgraduate stage in endodontics in Syria. This would clearly differentiate between undergraduate and postgraduate endodontic requirements.

This study employs a modified Delphi method to identify essential endodontics competencies for undergraduate dental education in Syria. The resulting competency framework has been established as a foundation for developing a competency-based endodontics curriculum that supports students in meeting established standards and advancing CBME adoption across Syria and comparable contexts.

To strengthen these findings, broader stakeholder engagement is needed to validate the competency list. It is recommended that the research scope be expanded by including diverse stakeholders to confirm and refine results. Additionally, an international competency framework should be established through collaborative efforts with global researchers to ensure consistency and align best practices across regions.

Implementation of this framework should incorporate continuous assessment strategies, including clinical observation; multi-source feedback from patients, peers, and students; and learner self-assessment to monitor competency development and identify areas for improvement. These varied assessment methods enable timely intervention and support the transition toward CBME in Syria and similar settings.

Finally, a parallel study should be conducted to identify core competencies for postgraduate endodontics training in Syria. This research would create clear differentiation between undergraduate and graduate-level requirements, establishing a coherent progression pathway for dental professionals and ensuring comprehensive competency development across all training stages.