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Correlation between Clinical and Histologic Pulp Diagnoses
Abstract
Introduction Clinicians routinely face conditions in which they have to decide whether the dental pulp can be saved or not. This study evaluated how reliable the clinical diagnosis of normal pulp/reversible pulpitis (savable pulp) or irreversible pulpitis (nonsavable pulp) is when compared with the histologic diagnosis. Methods The study material consisted of 95 teeth collected consecutively in a general practice over a 5-year period and extracted for reasons not related to this study. Based on clinical criteria, teeth were categorized as having normal pulps, reversible pulpitis, or irreversible pulpitis. The former 2 were grouped together because they represent similar conditions in terms of prognosis. Teeth were processed for histologic and histobacteriologic analyses, and pulps were categorized as healthy, reversibly inflamed, or irreversibly inflamed according to defined criteria. The number of matching clinical/histologic diagnosis was recorded. Results The clinical diagnosis of normal pulp/reversible pulpitis matched the histologic diagnosis in 57 of 59 (96.6%) teeth. Correspondence of the clinical and histologic diagnosis of irreversible pulpitis occurred in 27 of 32 (84.4%) cases. Infection advancing to the pulp tissue was a common finding in teeth with irreversible pulpitis but was never observed in normal/reversibly inflamed pulps. Conclusions Findings using defined criteria for clinical and histologic classification of pulp conditions revealed a good agreement, especially for cases with no disease or reversible disease. This means that the classification of pulp conditions as normal pulps, reversible pulpitis, and irreversible pulpitis has high chances of guiding the correct therapy in the large majority of cases. However, there is still a need for refined and improved means for reliable pulp diagnosis.
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“Future research should focus on establishing clearer correlations between clinical symptoms and histological status of the pulp, as current evidence shows significant discrepancies between these parameters [25].”
From Consensus‐Based Recommendations on Pulp Therapies in Primary and Permanent Teeth: IAPD Porto Forum (2026) · cites this paper as [25]
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“Furthermore, endodontically treated teeth without visible radiographic signs of apical periodontitis can still be infected (Molander et al. 1998, Ricucci et al. 2014).”
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“As the caries process has progressed into the pulp and has bacterial infiltrate with accompanying pathological change (Demant et al., 2021; Ricucci et al., 2014), removal of pulp tissue either in a partial pulpotomy (Taha & Khazali, 2017) or full pulpotomy procedure is indicated (Simon et al.”
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“The presence of spontaneous or severe preoperative pain does not always indicate that the pulp is not capable of repair (3, 4), and deep carious lesions are not unconditionally related to an irreversible pattern of pulpal injury (5, 6).”
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“…(GFs) previously identified as being released from dentine by endodontic irrigants and dental materials (Finkelman et al., 1990; Cassidy et al., 1997; Roberts-Clark and Smith, 2000; Duque et al., 2006; Graham et al., 2006; Tomson et al., 2007), as well as other novel GFs (Duncan et al., 2017).”
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“Previous studies of patients with irreversible pulpitis have provided in vivo experimental and histological findings that suggest the pulpal inflammation is principally contained within the coronal pulp tissue and not generalized throughout the pulp (Tønder & Kvinnsland 1983, Ricucci et al. 2014).”
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Vital pulp therapy in carious pulp–exposed permanent teeth: an umbrella review
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MMP-9 Levels and NaOCl Lavage in Randomized Trial on Direct Pulp Capping
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“accompanied by the infiltration of the pulp tissue with bacteria, neutrophils, and subsequent microabscess formation (Langeland 1987; Ricucci et al. 2014).”
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“However, improved methods are required for the diagnosis of irreversible pulpitis (Ricucci et al. 2014).”
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“Recently, these clinical diagnoses have been shown to align well with histological diagnoses in the majority of cases (Ricucci et al., 2014); therefore, obtaining comprehensive information from teeth with deep caries is crucial in order to guide decisionmaking in vital pulp treatments, including…”
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Targeted Endodontic Microsurgery: A Retrospective Outcomes Assessment of 24 Cases.
Buniag, A. G., Pratt, A. M., & Ray, J. J. (2021) · Journal of Endodontics · doi:10.1016/j.joen.2021.01.007 · Cited by 31
Arruda-Vasconcelos, R., Louzada, L., Feres, M., Tomson, P., Cooper, P., & Gomes, B. (2020) · International Endodontic Journal · doi:10.1111/iej.13402 · Cited by 30
MMP-9 in Dentinal Fluid Correlates with Caries Lesion Depth
Ballal, N. V., Rao, S., Bagheri, A., Bhat, V. R., Attin, T., & Zehnder, M. (2017) · Caries Research · doi:10.1159/000479040 · Cited by 42
“However, because the deep cavities assessed in this study were from teeth without spontaneous pain, it is unlikely that any of these had irreversible pulpitis [Ricucci et al., 2014].”
BackgroundAnshida, V., Kumari, R., Murthy, C. S., & Samuel, A. (2020) · Journal of Oral and Maxillofacial Pathology · doi:10.4103/jomfp.jomfp_34_20 · Cited by 37
“[43] This is because PMN infiltration and associated soft‐tissue breakdown are the key factors in histologically discerning reversible and irreversible pulpitis.[44,45] PMNs that serve as the first cellular barrier to bacterial invasion, in addition to destroying bacteria, destroy the surrounding tissues by secreting…”
BackgroundMunir, A., Zehnder, M., & Rechenberg, D. (2020) · Journal of Clinical Medicine · doi:10.3390/jcm9040984 · Cited by 29
“From a histological point of view this makes sense, as the infection advances from the crown towards the root [50].”
BackgroundTziafas, D. (2019) · Journal of Endodontics · doi:10.1016/j.joen.2018.12.002 · Cited by 29
A Diagnostic Insight of Dental Pulp Testing Methods in Pediatric Dentistry
Igna, A., Mircioagă, D., Boariu, M., & Stratul, S. (2022) · Medicina · doi:10.3390/medicina58050665 · Cited by 28
“A study investigating the correlation of symptoms with the histological appearance of the pulp demonstrated that the classification of pulp conditions as normal, reversible, and irreversible pulpitis (based on treatment prognosis) has high chances of guiding the correct therapy in most cases, especially the ones with…”
BackgroundAlfaisal, Y., Idris, G., Peters, O. A., Zafar, S., Nagendrababu, V., & Peters, C. I. (2024) · International Endodontic Journal · doi:10.1111/iej.14036 · Cited by 32
Lee, C. S., Ramsey, A. A., Brito-Gariepy, H. D., Michot, B., Podborits, E., Melnyk, J., & Gibbs, J. (2017) · Molecular Pain · doi:10.1177/1744806917715173 · Cited by 27
“The clinical diagnosis that defines this etiology is irreversible pulpitis, and it is often, but not always, extremely painful.(4,5) As the infection progresses throughout the pulpal tissue, the pulp degenerates and ultimately becomes completely necrotic, while the inflammation continues to spread in the periodontal t…”
BackgroundFourier Transform Infrared Imaging analysis of dental pulp inflammatory diseases.
Giorgini, E., Sabbatini, S., Conti, C., Rubini, C., Rocchetti, R., Fioroni, M., Memè, L., & Orilisi, G. (2017) · Oral Diseases · doi:10.1111/odi.12635 · Cited by 27
“The hallmark features of irreversible pulpitis are an advanced degenerative process of the pulp and the presence of a continuous pain that may be initiated by cold, but is also more reliably produced by heat (Levin et al, 2009; Michelson and Holland, 2002; Ricucci et al, 2014; Keiser et al, 2002).”
BackgroundGene expression profile of pulpitis
Galicia, J. C., Henson, B., Parker, J. S., & KHAN, A. A. (2016) · Genes and Immunity · doi:10.1038/gene.2016.14 · Cited by 39
Komora, P., Vámos, O., Gede, N., Hegyi, P., Kelemen, K., Galvács, A., Varga, G., Kerémi, B., & Vág, J. (2024) · Scientific Reports · doi:10.1038/s41598-024-69367-7 · Cited by 26
Bioceramic Materials in Clinical Endodontics
Drukteinis, S., & Camilleri, J. (2021) · doi:10.1007/978-3-030-58170-1 · Cited by 26
Buzoglu, H. D., Ozcan, M., Bozdemir, O., Akkurt, K. S. A., Zeybek, N. D., & Bayazıt, Y. (2023) · Clinical Oral Investigations · doi:10.1007/s00784-023-05203-y · Cited by 25
“Ricucci et al. [32] stated that there is localized pulp necrosis in the carious pulp exposure site, which is considered an indicator of irreversible pulpitis, as in this study, and beyond that, the coronal pulp maybe with little inflammation or may be surrounded by PMNL and chronic inflammatory…”
ResultAzim, A. A., Merdad, K. A., & Peters, O. (2022) · International Endodontic Journal · doi:10.1111/iej.13816 · Cited by 25
“The objective finding, however, would be clinical and radiographic signs of caries as shown in histological studies (Ricucci et al., 2014).”
BackgroundMethodAbuelniel, G., Duggal, M., Duggal, S., & Kabel, N. (2021) · European Journal of Paediatric Dentistry · doi:10.23804/ejpd.2021.22.01.04 · Cited by 25
“Although a history of pain, and bleeding from the amputation site, amongst other clinical indicators can give a reasonable indication whether there is inflammation present in the radicular pulp, this is not always accurate [Aguilar, Linsuwanont, 2010; Ricucci et al., 2014].”
Silva, E. J. N. L., Pinto, K. P., Riche, F. N. S. J., Carestiato, M. G. H., Martins, J. N. R., Duncan, H. F., VERSIANI, M. A., & De‐Deus, G. A. (2025) · International Endodontic Journal · doi:10.1111/iej.14210 · Cited by 22
Louzada, L., Hildebrand, H., Neuhaus, K. W., & Duncan, H. (2024) · International Endodontic Journal · doi:10.1111/iej.14149 · Cited by 24
“Coronal pulpotomy, on the other hand, generally eliminates all inflammatory pulp tissue even in cases of irreversible pulpitis as the tissue in the root is generally free of inflammatory change (Ricucci et al., 2014).”
Fibroblast membrane-camouflaged nanoparticles for inflammation treatment in the early stage
Sun, L., He, L., Wu, W., Luo, L., Han, M., Liu, Y., Shi, S., Zhong, K., Yang, J., & Li, J. (2021) · International Journal of Oral Science · doi:10.1038/s41368-021-00144-2 · Cited by 28
“Early pulpitis is characterized by inflammation localized to the coronal pulp, and it was selected as an early inflammation model.(31) To determine the early pulpitis triggered by LPS in vivo, histologic observations were conducted at different time points (24, 48, and 72 h) (Fig.”
BackgroundCharacterization of Root Canal Microbiota in Teeth Diagnosed with Irreversible Pulpitis.
Zahran, S., Witherden, E. A., Mannocci, F., & Koller, G. (2020) · Journal of Endodontics · doi:10.1016/j.joen.2020.12.009 · Cited by 24
Chung, M., Lee, S., Chen, D., Kim, U., Kim, Y., Kim, S., & Kim, E. (2019) · Materials · doi:10.3390/ma12081259 · Cited by 24
Zhu, L., Liu, W., Deng, X., Chen, Z., Chen, J., & Qian, W. (2024) · BMC Oral Health · doi:10.1186/s12903-024-05011-0 · Cited by 23
“According to the histologic study of Ricucci et al., clinical signs and symptoms of patient are not well correlated with the actual extent of inflammation of the exposed pulp [27].”
Metadata
- Authors
- Ricucci, D., Loghin, S., & Siqueira, J. F.
- Affiliations
- Estácio (Brazil) (BR)
- Corresponding author
- Ricucci, Domenico
- Venue
- Journal of Endodontics
- Publisher
- Elsevier BV
- Published
- 2014-12
- Volume
- 40
- Issue
- 12
- Pages
- 1932-1939
- ISSN
- 0099-2399 (ISSN-L)
- OpenAlex
- W2079366348
- Cited by
- 477
- References
- 0
- Citations by year
- 2026: 60 · 2025: 58 · 2024: 77 · 2023: 61 · 2022: 55 · 2021: 43 · 2020: 39 · 2019: 28 · 2018: 18 · 2017: 13 · 2016: 17 · 2015: 7
- FWCI
- 14.63
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Journal of Endodontics (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Dentistry › Oral Surgery › Endodontics and Root Canal Treatments
- Health Sciences › Dentistry › General Dentistry › Dental materials and restorations
- Health Sciences › Dentistry › General Dentistry › Oral Health Pathology and Treatment
- Keywords
- diagnosis, histopathological diagnosis, pulp diagnosis, reversible pulpitis, irreversible pulpitis, pulpitis, pulp infection, endodontic treatment
- MeSH terms
- Adolescent, Adult, Aged, Bacteria, Composite Resins, Dental Amalgam, Dental Caries, Dental Materials, Dental Pulp, Dental Pulp Necrosis, Dental Pulp Test, Dental Restoration, Permanent, Dentin, Dentin, Secondary, Diagnosis, Differential, Female, Humans, Male, Middle Aged, Odontoblasts, Prognosis, Pulpitis, Young Adult
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