Mariana Rocha Nadaes
@universidadedevassouras.edu.br
Professor, Department of Dentistry
University of Vassouras
EDUCATION
Graduated from the Faculty of Dentistry of the Universidade Federal Fluminense (2012), postgraduate Lato Sensu in Radiology and Dental Imaging from the Faculty of Dentistry of the Federal University of Juiz de Fora (2013), graduated from Stricto Sensu, Master's degree in Dental Clinic by the Faculty of Dentistry of the Federal University of Juiz de Fora (2015) and postgraduate Stricto Sensu, PhD level, in Dental Radiology by the Faculty of Dentistry of Piracicaba of the State University of Campinas (2018).
RESEARCH INTERESTS
Has experience in Dentistry, focusing on Dental Radiology and Oral Diagnosis. Currently performs teaching activities at the University of Vassouras.
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
M.R. Nadaes, L.P. Lagos de Melo, F. Haiter Neto, and D.Q. Freitas
Elsevier BV
The aim of this study was to evaluate whether a correlation exists between temporal bone pneumatization and the morphology of the articular eminence and glenoid fossa. A sample of 100 cone beam computed tomography scans was used, for a total of 200 temporomandibular joints (TMJ). Paracoronal and parasagittal images of the TMJ were evaluated by two examiners. For all TMJ, pneumatization was classified in the mid-lateral direction using a score of 0 or 1, and in the anteroposterior direction using a score ranging from 0 to 3. The inclination and height of the articular eminence and the thickness of the roof of the glenoid fossa were obtained. Pneumatization was found in the mid-lateral direction in 83.5% of the cases and in the anteroposterior direction in 88%. The age of the patient and side did not influence the prevalence or degree of pneumatization (P=0.051-0.953), but female patients showed more pneumatization in the mid-lateral direction than male patients (P=0.014). The presence of pneumatization did not affect articular eminence and mandibular fossa morphology. It is concluded that the presence and extent of pneumatization of the TMJ temporal component does not affect its morphology. However, professionals should be aware of the high prevalence of pneumatization and take this into account when performing TMJ assessment.
Guilherme Fantini Ferreira, Larissa Pereira Lagos de Melo, Mariana Rocha Nadaes, Fernanda Maria Mazoni Reis, Fernanda Miori Pascon, and Deborah Queiroz Freitas
Universidade Estadual de Campinas
Aim: To evaluate the performance of three digital radiographic systems in the analysis of root canal filling quality using different intracanal materials for primary teeth. Methods: Twenty-five bovine teeth were divided into 5 groups: Calen® combined with iodoform; Calen® combined with zinc oxide; zinc oxide and eugenol; UltraCal®XS, and 2% chlorhexidine combined with Ca(OH)2 + zinc oxide. Periapical radiographs were obtained with the VistaScan, Express, and SnapShot systems. The quality of the images was evaluated objectively (radiopacity) and subjectively (apical sealing and filling homogeneity). As the reference standard, the teeth were scanned with a micro-CT device. Results: Radiopacity differed among the radiographic systems and materials tested. In general, the greatest difference was observed between the Express and VistaScan systems; Calen® combined with iodoform resulted in the highest radiopacity. The radiographic systems did not differ in terms of homogeneity. However, Calen® combined with iodoform differed from the other materials and exhibited the best results. Regarding apical sealing, the SnapShot system and Calen® combined with zinc oxide provided the best results. Conclusion: Direct digital systems show better performance in evaluating the quality of endodontic treatment in primary teeth and should be preferred for this purpose.
Eduarda Helena Leandro Nascimento, Anne Caroline Costa Oenning, Mariana Rocha Nadaes, Gláucia Maria Bovi Ambrosano, Francisco Haiter-Neto, and Deborah Queiroz Freitas
Elsevier BV
PURPOSE
This study aimed to investigate the prevalence of juxta-apical radiolucency (JAR), assessing its association with third molar status and describing its radiologic features through panoramic radiography.
MATERIALS AND METHODS
We evaluated 1,050 radiographs (1,830 third molars) for the presence of JAR. The JAR and control groups were classified according to the third molar's angulation, impaction, and root development. The presence of radiographic signs of proximity between the mandibular canal and third molar and the imaging features of JAR also were recorded.
RESULTS
JAR was identified in 116 patients (11%) and 130 third molars (7.1%), being significantly associated with female patients and with the second and third decades of life. There also was an association with teeth with a vertical angulation and complete root formation. Radiographic signs of proximity to the mandibular canal were absent in 66.2% of JAR cases. In most cases, there was lamina dura in the juxta-apical area that appeared to overlap the mandibular canal and to have a cortical outline.
CONCLUSIONS
JAR is not a rare imaging finding. Given its possible relationship with nerve injuries and its differential diagnostic possibilities, knowing the characteristics of JAR is important to assist professionals in treatment planning and making the correct diagnosis.
Eduarda Helena Leandro Nascimento, Anne Caroline Costa Oenning, Mariana Rocha Nadaes, Gláucia Maria Bovi Ambrosano, Francisco Haiter-Neto, and Deborah Queiroz Freitas
Elsevier BV
PURPOSE
This study aimed to investigate the prevalence of juxta-apical radiolucency (JAR), assessing its association with third molar status and describing its radiologic features through panoramic radiography.
MATERIALS AND METHODS
We evaluated 1,050 radiographs (1,830 third molars) for the presence of JAR. The JAR and control groups were classified according to the third molar's angulation, impaction, and root development. The presence of radiographic signs of proximity between the mandibular canal and third molar and the imaging features of JAR also were recorded.
RESULTS
JAR was identified in 116 patients (11%) and 130 third molars (7.1%), being significantly associated with female patients and with the second and third decades of life. There also was an association with teeth with a vertical angulation and complete root formation. Radiographic signs of proximity to the mandibular canal were absent in 66.2% of JAR cases. In most cases, there was lamina dura in the juxta-apical area that appeared to overlap the mandibular canal and to have a cortical outline.
CONCLUSIONS
JAR is not a rare imaging finding. Given its possible relationship with nerve injuries and its differential diagnostic possibilities, knowing the characteristics of JAR is important to assist professionals in treatment planning and making the correct diagnosis.
O.D. Gonçalves, S. Boldt, M. Nadaes, and K.L. Devito
Elsevier BV
Abstract In this work we calculate the ratio between scattered and transmitted photons (STRR) by a water cylinder reaching a detector matrix element (DME) in a flat array of detectors, similar to the used in cone beam tomography (CBCT), as a function of the field of view (FOV) and the irradiated volume of the scanned object. We perform the calculation by obtaining an equation to determine the scattered and transmitted radiation and building a computer code in order to calculate the contribution of all voxels of the sample. We compare calculated results with the shades of gray in a central slice of a tomography obtained from a cylindrical glass container filled with distilled water. The tomography was performed with an I-CAT tomograph (Imaging Science International), from the Department of Dental Clinic – Oral Radiology, Universidade Federal de Juiz de Fora. The shade of gray (voxel gray value – VGV) was obtained using the software provided with the I-CAT. The experimental results show a general behavior compatible with theoretical previsions attesting the validity of the method used to calculate the scattering contributions from simple scattering theories in cone beam tomography. The results also attest to the impossibility of obtaining Hounsfield values from a CBCT.
Larissa Pereira Lagos de Melo, Anne Caroline Costa Oenning, Mariana Rocha Nadaes, Yuri Nejaim, Frederico Sampaio Neves, Matheus Lima Oliveira, and Deborah Queiroz Freitas
Elsevier BV
OBJECTIVES
The aim of the study was to assess the influence of cone beam computed tomography (CBCT) acquisition parameters on the evaluation of mandibular third molars and their relationship to the mandibular canal.
STUDY DESIGN
Eight dry human mandibles with 13 mandibular third molars were scanned with one CBCT unit. Voxel size (0.2 and 0.3 mm), field of view (FOV) size (12 × 8.5 cm and 5 × 5 cm), and number of basis images (450 and 720) were the variables studied. Two examiners evaluated the images, and the resulting data were compared through McNemar, McNemar-Bowker, and Student t tests. Additionally, dosimetry was determined for all protocols tested, and radiation doses were compared through analysis of variance.
RESULTS
The variables did not influence evaluation of mandibular third molars, except for voxel size, when assessing contact between the tooth and the mandibular canal (P = .021). Although FOV and number of basis images affected radiation dose, voxel size did not.
CONCLUSIONS
FOV size and number of basis images did not influence the evaluation of mandibular third molars and their relationship to the mandibular canal in the CBCT unit used. Conversely, smaller voxel size affected the assessment of contact between the tooth and the mandibular canal. In units in which voxel size does not influence radiation dose, the most appropriate CBCT protocol is the one using a smaller voxel size and delivering the lowest radiation dose to the patient.
Eduarda Helena Leandro Nascimento, Anne Caroline Costa Oenning, Mariana Rocha Nadaes, Gláucia Maria Bovi Ambrosano, Francisco Haiter-Neto, and Deborah Queiroz Freitas
Elsevier BV
OBJECTIVE
To evaluate the relation of juxta-apical radiolucency (JAR) to the mandibular canal and cortical plates on cone beam computed tomography images, as well as to assess whether the presence of JAR is related to the position of the mandibular canal.
STUDY DESIGN
Forty-seven JAR cases were evaluated by cone beam computed tomography. JAR position and its relationship to the mandibular canal and cortical plates were investigated. The position of the mandibular canal was recorded and compared with a control group. Descriptive analyses and χ2 tests were performed.
RESULTS
A significant association was established between JAR and the position of the mandibular canal (P = .0193), which was positioned lingually in 59.6% of JAR cases. In most cases, JAR was located distal to the tooth (66%) and in contact with the mandibular canal, either with (53.2%) or without (40.4%) preservation of the cortical border of the canal. In 22 cases (46.8%), thinning of cortical plates was observed, but no statistical differences were found between buccal and lingual sides (P = .5728).
CONCLUSIONS
The mandibular canal is located lingually in the third molar region in most JAR cases. JAR is located distal to the tooth and is generally in contact with the mandibular canal. These relations may increase the risk of nerve injury during surgical removal of third molars.
Leonardo Santos Antunes, Caroline Pelagio Raick Maués, Mariana Rocha Nadaes, Marcelo Castro Costa, Erika Calvano Küchler, and Lívia Azeredo Alves Antunes
Wiley
This study aimed to assess the impact of nonsyndromic oral cleft (NSOC) on families' quality of life (QoL) using the Brazilian version of the Family Impact Scale (B-FIS). A hospital-based case-control study was conducted with NSOC cases and unaffected controls recruited at Dental Clinic in Federal University. The mean B-FIS scores were 10.32 (SD 6.53) and 5.04 (SD 4.73), while the median scores were 9.00 and 3.50 (p < .05 Wilcoxon test), respectively, in case and control group. The "parental/family activity" subscale had the highest impact average score in case (5.62 SD 3.76) and control group (3.00 SD 3.08) (p < .05 Mann-Whitney test). The types of cleft with the most impact were cleft lip (12.00 SD 8.98) and cleft lip with cleft palate (11.06 SD 6.74). NSOC affects the QoL of families with children who have this condition; however, there were no remarkable differences between the groups.