When a diagnostic challenge reveals a simple diagnosis: the role of the operating microscope in Oral Medicine - a case report.

Authors

  • Pedro Franco Ferreira Department of Oral & Maxillofacial Surgery, and Periodontology, Ribeirao Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil. https://orcid.org/0009-0000-5321-2291
  • Hugo Gaêta-Araujo Department of Stomatology, Public Health and Forensic Dentistry, Ribeirao Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil. https://orcid.org/0000-0001-5087-5022
  • Ana Carolina Fragoso Motta Department of Stomatology, Public Health and Forensic Dentistry, Ribeirao Preto School of Dentistry, University of São Paulo, Ribeirão Preto, SP, Brazil. https://orcid.org/0000-0002-3887-9239

DOI:

https://doi.org/10.5327/2525-5711.473

Keywords:

magnification, oral medicine, dental operating microscope, case report

Abstract

Magnification has been widely established in some fields of dentistry. However, its use in oral medicine is still incipient, and the available literature is scarce. This report describes the case of a 25-year-old male patient that was referred to our Oral Medicine clinic after a two-year diagnostic delay, presenting with a nodular lesion in the anterior maxilla and a history of severe pain and purulent drainage.  Conventional radiographic examination was inconclusive while cone-beam computed tomography and ultrasonography suggested either a cystic lesion or a chronic inflammatory process but failed to identify a clear etiological factor. Exploratory microsurgery using a dental operating microscope disclosed an untreated accessory canal, and histopathological analysis confirmed a lateral radicular cyst. In this case, conventional clinical and imaging examinations were insufficient to establish a definitive diagnosis. The dental operating microscope played a decisive role in revealing the lesion’s underlying cause and facilitating appropriate referral for treatment. This case highlights the potential value of magnification as a diagnostic adjunct in Oral Medicine.

References

[1] Pradeep S, Vinoddhine R. The role of magnification in endodontics. Annals and Essences of Dentistry. 2014;6(2):38-43.

[2] Gogiya RJ, Chandak MG, Modi RR, Bhutda P, Kela S, Chandak RM. Magnification in dentistry: A review. Int J Appl Dent Sci. 2018;4(2):89-93.

[3] Carr GB, Murgel CA. The use of the operating microscope in endodontics. Dent Clin North Am. 2010 Apr;54(2):191-214. doi: 10.1016/j.cden.2010.01.002.

[4] Shanelec DA, Tibbetts LS. A perspective on the future of periodontal microsurgery. Periodontol 2000. 1996 Jun;11:58-64. doi: 10.1111/j.1600-0757.1996.tb00183.x.

[5] Tilaveridis I, Lazaridou M, Lazaridis N. The use of magnification and microsurgical instruments for the excision of lower lip mucoceles. J Oral Maxillofac Surg. 2011 May;69(5):1408-10. doi: 10.1016/j.joms.2010.06.202.

[6] Zhang Y, Yuan P, Jiang H, Qiu X, Wang J, Luo X, et al. Application of medical magnifying loupes in diagnosis of oral mucosal diseases. Zhejiang Da Xue Xue Bao Yi Xue Ban. 2021 Apr 25;50(2):205-211. English. doi: 10.3724/zdxbyxb-2021-0132.

[7] Gynther GW, Rozell B, Heimdahl A. Direct oral microscopy and its value in diagnosing mucosal lesions: a pilot study. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2000 Aug;90(2):164-70. doi: 10.1067/moe.2000.105334.

[8] Ohri N, Kapoor C, Mohemmed RP, Vaidya S. An update on intraoral application of colposcopy. J Oral Maxillofac Pathol. 2014;18:403-10.

[9] Mahmoud SAM, Latif MKA, Dahmoush HM, Hussein EA. Diagnostic accuracy of colposcopic examination in patients with oral dysplastic lesions. Oral Surg Oral Med Oral Pathol Oral Radiol. 2020 Dec;130(6):692-699. doi: 10.1016/j.oooo.2020.08.019.

[10] Sanders JL, Houck RC. Dental Abscess. [Updated 2023 Feb 20]. In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2024 Jan. Available from: https://www.ncbi.nlm.nih.gov/books/NBK493149/

[11] PradeepKumar AR, Shemesh H, Jothilatha S, Vijayabharathi R, Jayalakshmi S, Kishen A. Diagnosis of vertical root fractures in restored endodontically treated teeth: A time-dependent retrospective cohort study. J Endod. 2016 Aug;42(8):1175-80. doi: 10.1016/j.joen.2016.04.012.

[12] Ong TK, Harun N, Lim TW. Cemental tear on maxillary anterior incisors: A description of clinical, radiographic, and histopathological features of two clinical cases. Eur Endod J. 2019 Apr 4;4(2):90-95. doi: 10.14744/eej.2019.13007.

[13] Vertucci FJ. Root canal anatomy of the human permanent teeth. Oral Surg Oral Med Oral Pathol. 1984 Nov;58(5):589-99. doi: 10.1016/0030-4220(84)90085-9.

[14] Nair PN. On the causes of persistent apical periodontitis: a review. Int Endod J. 2006 Apr;39(4):249-81. doi: 10.1111/j.1365-2591.2006.01099.x.

[15] Siqueira JF Jr. Aetiology of root canal treatment failure: why well-treated teeth can fail. Int Endod J. 2001 Jan;34(1):1-10. doi: 10.1046/j.1365-2591.2001.00396.x.

[16] Pimenta Carvalho S, Estrela C, Franco EV. Clinical Differential Diagnosis between Nonodontogenic and Endodontic Radiolucent Lesions in Periapical Location: A Critical Review. Iran Endod J. 2021 Summer;16(3):150-157. doi: 10.22037/iej.v16i3.32572.

[17] Shilkofski JA, Khan OA, Salib NK. Non-Hodgkin’s lymphoma of the anterior maxilla mimicking a chronic apical abscess. J Endod. 2020 Sep;46(9):1330-1336. doi: 10.1016/j.joen.2020.06.010.

[18] Wongpattaraworakul W, Krongbaramee T, Lanzel EA, Hellstein JW, Teixeira FB. Hematolymphoid neoplasm mimicking endodontic lesions: case series and review of the literature. Oral Surg Oral Med Oral Pathol Oral Radiol. 2024 Aug 5:S2212-4403(24)00406-1. doi: 10.1016/j.oooo.2024.07.011.

[19] Zheng FY, Qiu JY, Liao KH, Lin NC. Oral rhabdomyosarcoma, a rare malignant tumor mimicking an endodontic-periodontal lesion in an adult patient: a case report. BMC Oral Health. 2024 Jan 16;24(1):92. doi: 10.1186/s12903-024-03875-w.

[20] Srirangarajan S, Shashidara R, Ramya R, Harika S, Pritham SN, Ravi RJ, et al. Mistaken identity of polymorphous low-grade adenocarcinoma treated as periapical lesion in anterior maxilla: A case report. Aust Endod J. 2023 Sep;49 Suppl 1:470-475. doi: 10.1111/aej.12723.

[21] Dube K, Dube A, Jain P, Ghosh S, Paul B, Bhatnagar N. Maxillary mucinous adenocarcinoma mimicking a lesion of endodontic origin: A rare case report. Eur Endod J. 2023 Jan;8(1):101-104. doi: 10.14744/eej.2022.29200.

[22] Pires MD, Martins JNR, Dias GS, Doutel D, Ordinola-Zapata R. Osteosarcoma of the anterior maxilla mimicking a periapical pathology: A case report. Aust Endod J. 2021 Dec;47(3):656-663. doi: 10.1111/aej.12491.

[23] Stevenson MD, Dunlap CA, Shin M, Oza S, Lai GS. Invasive oral squamous cell carcinoma mimicking a dentoalveolar abscess: Report of a case in a 14-year-old patient. J Endod. 2024 May 28:S0099-2399(24)00335-2. doi: 10.1016/j.joen.2024.05.011.

[24] Patel S, Durack C, Abella F, Shemesh H, Roig M, Lemberg K. Cone beam computed tomography in Endodontics - a review. Int Endod J. 2015 Jan;48(1):3-15. doi: 10.1111/iej.12270.

[25] Brüllmann D, Schulze RK. Spatial resolution in CBCT machines for dental/maxillofacial applications-what do we know today? Dentomaxillofac Radiol. 2015;44(1):20140204. doi: 10.1259/dmfr.20140204.

[26] Joshi PS, Pol J, Sudesh AS. Ultrasonography - A diagnostic modality for oral and maxillofacial diseases. Contemp Clin Dent. 2014 Jul;5(3):345-51. doi: 10.4103/0976-237X.137942.

[27] Marcello Scotti F, Stuepp RT, Leonardi Dutra-Horstmann K, Modolo F, Gusmão Paraiso Cavalcanti M. Accuracy of MRI, CT, and Ultrasound imaging on thickness and depth of oral primary carcinomas invasion: a systematic review. Dentomaxillofac Radiol. 2022 Jul 1;51(5):20210291. doi: 10.1259/dmfr.20210291.

[28] Perrin P, Eichenberger M, Neuhaus KW, Lussi A. Visual acuity and magnification devices in dentistry. Swiss Dent J. 2016;126(3):222-235. English, German. doi: 10.61872/sdj-2016-03-142.

[29] Medeiros YL, Neto JBC, Alves FA. Operating Microscope in the Analysis of Localized Juvenile Spongiotic Gingival Hyperplasia. Oral Dis. 2025 Dec;31(12):3417-3419. doi: 10.1111/odi.70031. Epub 2025 Jul 13. PMID: 41832607; PMCID: PMC12989046.

[30] Setzer FC, Kohli MR, Shah SB, Karabucak B, Kim S. Outcome of endodontic surgery: a meta-analysis of the literature--Part 2: Comparison of endodontic microsurgical techniques with and without the use of higher magnification. J Endod. 2012 Jan;38(1):1-10. doi: 10.1016/j.joen.2011.09.021.

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Published

2026-08-03

How to Cite

1.
Ferreira PF, Gaêta-Araujo H, Motta ACF. When a diagnostic challenge reveals a simple diagnosis: the role of the operating microscope in Oral Medicine - a case report. J Oral Diagn [Internet]. 2026 Aug. 3 [cited 2026 Aug. 25];. Available from: https://joraldiagnosis.com/revista/article/view/473

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Case Report