Effective endodontic treatment relies on a number of decisions from the clinician. From initial case selection through to each product implemented as treatment is executed, every step of the journey requires careful consideration.
Evidence-based decision-making is key to ensuring that the most successful techniques, equipment and materials are employed, delivering excellent clinical outcomes for the patient.[i] This all begins with a comprehensive assessment and meticulous treatment planning.
The foundations of success
As is applicable in any dental discipline, success in endodontics requires a comprehensive assessment and diagnostic process. Digital imaging is integral to this initial treatment phase,[ii] with periapical radiographs or CBCT evidence providing precise visualisation of the problem. The latter is particularly important in more complex cases.[iii] This would typically be accompanied by pulp vitality testing, which is proven to be a highly accurate method for determining pulp health.[iv]
The data captured from these combined tests will inform the clinician as to possible treatment solutions, ensuring appropriate case selection and thorough treatment planning for endodontic therapy. Visual aids are also shown to be advantageous in improving patient understanding of their oral health status and their need for treatment, as well as positively influencing their overall health literacy.[v] Given that patients tend to be more fearful about upcoming endodontic treatment compared to other dental procedures,[vi] an enhanced understanding of what will happen may help to alleviate some of their concerns.[vii]
The first decision is to determine the prognosis of the tooth, indicating whether endodontic therapy or implant placement is more suitable for the case. From here, the clinical technique will need to be established and communicated with the patient.
Clinical approach
The clinical approach selected will be informed by various factors detected during the assessment. These include the number of identified canals, the curvature of the canals, the proximity to any nerves or other major anatomical structures, and the presence of any calcified or sclerosed canals.
There is a growing body of research that supports the use of guided endodontics. The digitally-driven approach has been associated with enhanced outcomes in a variety of clinical situations.[viii] The benefits of a guided approach include reduced treatment time, more accurate and safer treatment, as well as allowing success independent of the clinician’s experience, where static guides are used.[ix]
Whether providing conventional or guided endodontics, an effective obturation technique is essential for ensuring the necessary sealing of the root canal to prevent reinfection. This can often be challenged by irregularities in canal shape or number, and accessory foramina, among other factors, making this step in the treatment process a potential reason for endodontic treatment failure.[x]
Treatment tools
To complement the clinical technique and ensure each step in the treatment sequence can be performed accurately, instrument selection is crucial. Given that separated files are a significant cause of endodontic retreatment, the strength and flexibility of instruments used must be evaluated. This is especially important when working within the apical third of a tooth, which is associated with an instrument failure rate of 21% compared to just 9% in the middle and coronal third.[xi]
Also, in terms of instruments, rotary file systems have gained popularity in recent years. While the literature suggests that they offer no additional cleaning efficacy compared to hand files, they may provide better canal shaping. When applied in appropriate cases, this could lead to an enhanced quality of treatment in less time.[xii]
Obturation materials are another area to optimise for excellent treatment results, whether performing primary endodontics or retreatments. Effectively filled root canals, within 0-2mm from the apical limit, combined with high-quality coronal restorations, are associated with improved clinical outcomes.[xiii] With access to a filling material that is easy to handle and place accurately, this is made more achievable in more cases.
The ROEKO GuttaFlow 2 from COLTENE, for example, features excellent flow properties and minimal shrinkage to facilitate simple and precise placement. It optimises workflow efficiency by providing gutta-percha and sealer in a single application, while its radiopacity makes on-going monitoring straightforward. With confidence that a tight seal is achieved, clinicians can trust the ROEKO GuttaFlow 2 in a broad range of endodontic scenarios.
Evidence-based endodontics
There are several decision-making opportunities for clinicians throughout endodontic treatment. Each one must be judged based on the assessment data collected, the clinician’s experience and the patient’s unique situation. An evidence-based strategy is crucial for optimising outcomes and delivering the best possible patient experience.
For more on COLTENE, visit www.colteneuk.com/GuttaFlow email info.uk@coltene.com or call 0800 254 5115.
Nicolas Coomber – COLTENE National Account & Marketing Manager
[i] Mohamed A, Steier L. Uncertain Decision-Making in Primary Root Canal Treatment. J Evid Based Dent Pract. 2017 Sep;17(3):205-215. doi: 10.1016/j.jebdp.2017.01.001. Epub 2017 Jan 28. PMID: 28865817.
[ii] Sarsam, W., Davies, J. & Al-Salehi, S. The role of imaging in endodontics. Br Dent J 238, 448–457 (2025). https://doi.org/10.1038/s41415-025-8511-z
[iii] Tay KX, Lim LZ, Goh BKC, Yu VSH. Influence of cone beam computed tomography on endodontic treatment planning: A systematic review. J Dent. 2022 Dec;127:104353. doi: 10.1016/j.jdent.2022.104353. Epub 2022 Oct 30. PMID: 36349644.
[iv] Patro S, Meto A, Mohanty A, Chopra V, Miglani S, Das A, Luke AM, Hadi DA, Meto A, Fiorillo L, et al. Diagnostic Accuracy of Pulp Vitality Tests and Pulp Sensibility Tests for Assessing Pulpal Health in Permanent Teeth: A Systematic Review and Meta-Analysis. International Journal of Environmental Research and Public Health. 2022; 19(15):9599. https://doi.org/10.3390/ijerph19159599
[v] Galmarini E, Marciano L, Schulz PJ. The effectiveness of visual-based interventions on health literacy in health care: a systematic review and meta-analysis. BMC Health Serv Res. 2024 Jun 11;24(1):718. doi: 10.1186/s12913-024-11138-1. PMID: 38862966; PMCID: PMC11165863.
[vi] Huynh R, Peters CI, Zafar S, Peters OA. Evaluating the stress of root canal treatment in patients and dentists compared to other dental treatments: A systematic review and meta-analysis. Eur J Oral Sci. 2023; 131:e12941. https://doi.org/10.1111/eos.12941
[vii] Hoffmann B, Erwood K, Ncomanzi S, Fischer V, O’Brien D, Lee A. Management strategies for adult patients with dental anxiety in the dental clinic: a systematic review. Aust Dent J. 2022 Mar;67 Suppl 1(Suppl 1):S3-S13. doi: 10.1111/adj.12926. Epub 2022 Jul 12. PMID: 35735746; PMCID: PMC9796536.
[viii] Samiei M, Sabanik P, Tavakkoli Avval S. Guided Endodontics for Non-surgical Root Canal Retreatment: A Systematic Review. Iran Endod J. 2025;20(1):e3. doi: 10.22037/iej.v20i1.46903. Epub 2025 Jan 1. PMID: 39935861; PMCID: PMC11808322.
[ix] Kulinkovych-Levchuk K, Pecci-Lloret MP, Castelo-Baz P, Pecci-Lloret MR, Oñate-Sánchez RE. Guided Endodontics: A Literature Review. International Journal of Environmental Research and Public Health. 2022; 19(21):13900. https://doi.org/10.3390/ijerph192113900
[x] Marconi, Daniel & Silva, Giovana & Weissheimer, Theodoro & Silva, Isadora & Barcelos, Gabriel & Thomasi Jahnke, Leonardo & Skupien, Jovito & Só, Marcus & Rosa, Ricardo. (2022). Influence of the root canal filling technique on the success rate of primary endodontic treatments: a systematic review. Restorative Dentistry & Endodontics. 47. 10.5395/rde.2022.47.e40.
[xi] Dioguardi M, Dello Russo C, Scarano F, Esperouz F, Ballini A, Sovereto D, Alovisi M, Martella A, Lo Muzio L. Analysis of Endodontic Successes and Failures in the Removal of Fractured Endodontic Instruments during Retreatment: A Systematic Review, Meta-Analysis, and Trial Sequential Analysis. Healthcare (Basel). 2024 Jul 11;12(14):1390. doi: 10.3390/healthcare12141390. PMID: 39057533; PMCID: PMC11276083.
[xii] Panchal V, Jeevanandan G, et al. Comparison between the Effectiveness of Rotary and Manual Instrumentation in Primary Teeth: A Systematic Review. Int J Clin Pediatr Dent 2019;12(4):340–346.
[xiii] Piñas-Alonzo, R., Bello, R., Hernández, A. et al. Clinical outcomes and prognostic factors in endodontic treatment: a systematic review from 2002-2022. Br Dent J (2025). https://doi.org/10.1038/s41415-025-8639-x
