Christiano Santos, DDS, MS, PhD

Assistant Professor, Department of Diagnosis & Oral Health - Radiology and Imaging Sciences


School of Dentistry, 501 S. Preston St., Room 149M

Education

  • PhD in Dental Sciences - University of Sao Paulo, Brazil, 2010
  • MS in Dentistry - Federal University of Bahia, Brazil 2008
  • DDS - School of Dentistry, Federal University of Bahia, 2004

Teaching Areas

  • Instructor - Oral and Maxillofacial Radiology

Professional Memberships and Affiliations

  • International Association of Dentomaxillofacial Radiology
  • Brazilian Association of Oral Radiology

Research Interests and Current Projects

  • Cone beam computed tomography

  • Imaging

Publications

Selected Journal Articles:
  • Marinho-Vieira LE, Pinheiro MCR, Freitas DQ, Jacobs R, Oliveira-Santos C, Sverzut AT, Oliveira ML. Evaluation of gingival thickness obtained from intraoral scanning registration with cone beam computed tomography at different acquisition modes. Oral Surg Oral Med Oral Pathol Oral Radiol  (2024). https://doi.org/10.1016/j.oooo.2024.08.005
  • Poleti ML, Paes da Silva Ramos Fernandes LM, Oliveira-Santos C, Capelozza AL, Chinellato LE, Rubira-Bullen IR. Anatomical variation of the maxillary sinus in cone beam computed tomography. Case Rep Dent. 2014;2014:707261. doi: 10.1155/2014/707261. https://pubmed.ncbi.nlm.nih.gov/24707410/ 
  • Capel CP, da Motta RJG, Pauwels R, Gaêta-Araujo H, Oliveira-Santos C, Tirapelli C. Effect of metal artifact reduction level on the assessment of dental implant positioning by cone-beam computed tomography. Dentomaxillofacial Radiology, 2024. https://doi.org/10.1093/dmfr/twae008 
  • Silva TP, Andrade-Bortoletto MFS, Ocampo TSC, Alencar-Palha C, Bornstein MM, Oliveira-Santos C, Oliveira ML. Performance of a commercially available Generative Pre-trained Transformer (GPT) in describing radiolucent lesions in panoramic radiographs and establishing differential diagnoses. Clin Oral Invest 28, 204 (2024). https://doi.org/10.1007/s00784-024-05587-5 
  • Silva TP, Pinheiro MCR, Freitas DQ, Gaêta-Araujo H, Oliveira-Santos C. Assessment of accuracy and reproducibility of cephalometric identification performed by human examiners and two AI-driven tracing applications. Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology (2024). https://www.sciencedirect.com/science/article/pii/S2212440324000178 
  • Silva TP, Ocampo TSC, da Silva CDAP, Oliveira-Santos C, Takeshita WM, de Oliveira ML. ChatGPT: A tool for scientific writing or a threat to integrity? The British Journal of Radiology 0 0:0https://www.birpublications.org/doi/10.1259/bjr.20230430  
  • Dantas CE, Parise FJH, Bastos CP, Gaeta-Araujo H, Moreira ML, Neves FB, Pedrazzi V, Oliveira-Santos C, Tirapelli C. Retromolar canal diagnosed by cone beam computed tomography and its influence on inferior alveolar nerve block. Odovtos-Int J Dent Sc. 2023;25 (1):135-141. https://www.medigraphic.com/cgi-bin/new/resumen.cgi?IDARTICULO=109838
  • Gaeta-Araujo H, Pinheiro MCR, Leite AF, de Faria Vasconcelos K, Jacobs R, Oliveira-Santos C. Radiographic perception of anatomical structures and bony changes in oncologic patients under antiresorptive therapy. Support Care Cancer 31, 149 (2023). https://doi.org/10.1007/s00520-023-07613-w 
  • Ramage A, Gutierrez BL, Fischer K, Sekula M, Santaella GM, Scarfe WC, Brasil DM, Oliveira-Santos C. Filtered back projection vs. iterative reconstruction for CBCT: Effects on image noise and processing time. Dentomaxillofacial Radiology (2023). https://www.birpublications.org/doi/abs/10.1259/dmfr.20230109.
  • de Freitas BN, Mendonça LM, Cruvinel PB, Lacerda TJ, Leite FGJ, Oliveira-Santos C, Tirapelli C. Comparison of intraoral scanning and CBCT to generate digital and 3D-printed casts by Fused Deposition Modeling and Digital Light Processing. Journal of Dentistry, 2022. https://doi.org/10.1016/j.jdent.2022.104387   
  • Costa ED, Gaêta-Araujo H, Reis LO, Cascante-Sequeira D, Brasil DM, Oliveira-Santos C, Freitas DQ. Does the angulation between the maxillary central incisors and the nasopalatine canal differ among sagittal and vertical skeletal patterns? A CBCT study. International Orthodontics, 2022. https://www.sciencedirect.com/science/article/pii/S1761722722000365
  • Gaeta-Araujo H, Oliveira-Santos N, Reis LO, Nascimento EHL, Oliveira-Santos C. Automatic exposure compensation of digital radiographic technologies does not affect alveolar bone level measurement. Oral Radiology (2022), accepted manuscript. https://doi.org/10.1007/s11282-022-00599-x
  • Oliveira-Santos N, Gaeta-Araujo H, Ruiz DC, Nascimento EHL, Cral WG, Oliveira-Santos C, Groppo FC. The impact of digital filters on the diagnosis of simulated root resorptions in digital radiographic systems. Clinical Oral Investigations (2022), accepted manuscript. https://doi.org/10.1007/s00784-022-04438-5.
  • Rodrigues CT, Jacobs R, Vasconcelos KF, Lambrechts P, Rubira-Bullen IRF, Gaêta-Araujo H,  Oliveira-Santos C, Duarte MAH.  Influence of CBCT-based volumetric distortion and beam hardening artefacts on the assessment of root canal filling quality in isthmus-containing molars. Dentomaxillofacial Radiology 2021; 50(5): 20200503. DOI: 10.1259/dmfr.20200503.
  • Mancini AXM, Santos MUC, Tirapelli C, Pauwels R, Oliveira-Santos C.  Artefacts at different distances from titanium and zirconia implants in cone-beam computed tomography: effect of tube current and metal artefact reduction. Clinical Oral Investigations 2021; 25:5087-94. DOI: 10.1007/s00784-021-03821-y.
  • Mendonca LM, Gaêta-Araujo H, Cruvinel PB, Tosin IW, Azenha MR, Ferraz MP, Oliveira-Santos C, Tirapelli C.  Can diagnostic changes caused by cone beam computed tomography alter the clinical decision in impacted lower third molar treatment plan? Dentomaxillofacial Radiology 2021; 50(4): 20200412. DOI: 10.1259/dmfr.20200412.

  • Cascante-Sequeira D, Gaêta-Araujo H, Peroni LV, Oliveira-Santos C, Haiter-Neto F.  Development and validation of two new image receptor-holding devices for overlapping reduction of proximal surfaces in bitewing radiography: a preclinical study. Dentomaxillofacial Radiology 2021; 50(4): 20200449. DOI: 10.1259/dmfr.20200449.

  • Wanderley VA, Nascimento EHL, Gaêta-Araujo H, Oliveira-Santos C, Freitas DQ, Oliveira ML.  Combined Use of 2 Cone-beam Computed Tomography Scans in the Assessment of Vertical Root Fracture in Teeth with Intracanal Materials. Journal of Endodontics 2021; 47(7):1132-7. DOI: 10.1016/j.joen.2021.04.001.

  • Gaêta-Araujo H, Leite AF, Vasconcelos KF, Coropciuc R, Politis C, Jacobs R, Oliveira-Santos C.  Why do some extraction sites develop medication-related osteonecrosis of the jaw and others do not? A within-patient study assessing radiographic predictors. International Journal of Oral Implantology 2021; 14(1):87-98.

  • Gaêta-Araujo H, Moreira-Souza L, Asprino L, Oliveira-Santos C.  Is peripheral cortication of intraosseous lesions accurately displayed on panoramic radiography? Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology 2020; 130(6):725-30.. DOI: 10.1016/j.oooo.2020.06.008.

  • Gaêta-Araujo H, Oliveira-Santos N, Mancini AXM, Oliveira ML, Oliveira-Santos C. Retrospective assessment of dental implant-related perforations of relevant anatomical structures and inadequate spacing between implants/teeth using cone-beam computed tomography. Clinical Oral Investigations 2020;24(9):3281-8. DOI: 10.1007/s00784-020-03205-8.

  • Gaêta-Araujo H, Silva MB, Tirapelli C, Freitas DQ, Oliveira-Santos C. Detection of the gubernacular canal and its attachment to the dental follicle may indicate an abnormal eruption status. The Angle Orthodontist (2019) 89 (5): 781–787. DOI: 10.2319/090518-651.1.

  • Oliveira-Santos C, Tirapelli C, Rodrigues CT, Domaneschi C, Monteiro SAC. Interactive audience response systems in oral and maxillofacial radiology undergraduate lectures. European Journal of Dental Education 2018;22(1):e63-9. DOI: 10.1111/EJE.12258.

  • Da Silva RJ, Valadares Souza CV, Souza GA, Ambrosano GMB, Freitas DQ, Sant’Ana E, Oliveira-Santos C. Changes in condylar volume and joint spaces after orthognathic surgery. International Journal of Oral & Maxillofacial Surgery 2018;47(4):511-7 DOI: 10.1016/j.ijom.2017.10.012.

  • Gaêta-Araujo H, Souza GQS, Freitas DQ, Oliveira-Santos C. Optimization of Tube Current in Cone-beam Computed Tomography for the Detection of Vertical Root Fractures with Different Intracanal Materials. Journal of Endodontics 2017;43(10):1668-73 DOI: 0.1016/j.joen.2017.04.003.

  • Brito ACR, Nejaim Y, Freitas DQ, Oliveira-Santos C. Panoramic radiographs underestimate extensions of the anterior loop and mandibular incisive canal. Imaging Science in Dentistry 2016;46(3):159-65. DOI: 10.5624/isd.2016.46.3.159.

  • Pauwels R, Seynaeve L, Henriques JCG, Oliveira-Santos C, Souza PC, Westphalen FH, Rubira-Bullen IRF, Ribeiro-Rotta RF, Rockenbach MIB, Haiter-Neto F, Pittayapat P, Bosmans H, Bogaerts R, Jacobs R. Optimization of dental CBCT exposures through mAs reduction. Dentomaxillofacial Radiology 2015; 44:20150108. DOI: 10.1259/dmfr.20150108

  • Motta ACF, Macedo LD, Santos GG, Guerreiro CT, Ferrari T, Oliveira TFL, Santos PSS, Oliveira-Santos C, Ricz, HMA, Xavier SP, Iannetta O. Quantitative ultrasound at the hand phalanges in patients with bisphosphonate-related osteonecrosis of the jaws. Brazilian Oral Research 2015; 29: 1-9. DOI: 10.1590/1807-3107BOR-2015.vol29.0106

  • Oliveira-Santos C, Rubira-Bullen IR, Monteiro SA, León JE, Jacobs, R. Neurovascular anatomical variations in the anterior palate observed on CBCT images. Clinical Oral Implants Research 2013; 24(9):1044-8. DOI: 10.1111/j.1600-0501.2012.02497.x.

  • Oliveira-Santos C, Souza PHC, Couto-Berti AS, Stinkens L, Moyaert K, Rubira-Bullen IRF, Jacobs R. Assessment of variations of the mandibular canal through cone beam computed tomography. Clinical Oral Investigations 2012; 16:387-93. DOI: 10.1007/s00784-011-0544-9.