Luiz Evaristo Ricci Volpato | Universidade De Cuiaba (original) (raw)

Papers by Luiz Evaristo Ricci Volpato

World Journal of Dentistry, 2017

Introduction This study aimed to evaluate the occurrence of radiodermatitis in patients undergoin... more Introduction This study aimed to evaluate the occurrence of radiodermatitis in patients undergoing radiotherapy in the head and neck. Materials and methods Thirty-eight patients were evaluated 6 months after the end of radiotherapy to treat cancer in the head and neck region. The radiodermatitis was clinically classified as absent, acute, or chronic. Data, such as age, sex, race/ color, drinking and smoking habits, number of radiotherapy sessions, and conduction of adjuvant chemotherapy were also obtained. Fisher's exact test and Pearson's test were used to analyze the correlation of the independent variables and the presence of radiodermatitis. Results The mean age of the patients was 59.71 (± 10.67), and 29 (76.3%) were men, 24 (63.2%) were non-white race/ color, 28 (63.7%) were alcohol consumers, and 33 (86.8%) were smokers. The average number of radiotherapy sessions was 37.26 (± 7.66); 30 (78.9%) patients underwent chemotherapy; and 26 (68.4%) had chronic radiodermatiti...

RGO - Revista Gaúcha de Odontologia, 2016

Objective To assess the prevalence of epidermoid carcinoma cases, georeference their locations, a... more Objective To assess the prevalence of epidermoid carcinoma cases, georeference their locations, and seek to correlate them to areas with higher agricultural production and use of pesticides. Methods This was a cross-sectional, descriptive and retrospective study conducted by searching the histopathological reports with confirmed diagnosis of epidermoid carcinoma of the mouth issued from August 2005 to December 2011 by the public oral pathology laboratory of the State of Mato Grosso, Brazil. Data were plotted with the IBM SPSS Statistics software and spatial analysis used the ArcGIS 10.1 software. Results There were a higher number of diagnoses in 2007 (26.6%); 99 cases (75%) of patients were male; 96 cases (72.8%) were patients aged between 41 and 70 years; and the cities of Cuiabá, Várzea Grande and Rondonópolis respectively showed the highest number of occurrences. Conclusion No relationship was found between the occurrence of cases of epidermoid carcinoma and the municipalities w...

ISRN Dentistry, 2011

It is extremely important to assess variations between the most used radiographs in dental practi... more It is extremely important to assess variations between the most used radiographs in dental practice, since minimum distortion on obtained images may change diagnosis, treatment plan, and prognosis for the patient. For this, the distance between the enamel-cementum junction and the alveolar bone crest was measured on conventional and digitized periapical, bitewing, and panoramic radiographs and compared among them. From a total of 1484 records, 39 sets of radiographs that fulfilled the inclusion criteria of the study sample were selected. The measurements were grouped according to the intensity of bone loss. Statistically significant difference was found in the averages of the measurements assessed in radiographs with absence of bone loss between conventional panoramic and periapical radiographs, between digitized panoramic and periapical radiographs and between digitized bitewing and panoramic radiographs. By analyzing the results of this work and considering the research protocol u...

Introduction: Lymphangioma is a congenital malformation of the lymphatic system often from birth ... more Introduction: Lymphangioma is a congenital malformation of the lymphatic system often from birth to the age of two years. It commonly affects the head and neck region, but is rare in the oral cavity. objective: To describe the case of a patient with two lesions in the oral cavity whose biopsy for diagnosis of the lesions progressed to life-threatening complication. Case Report: A male, five-year-old patient, with two intra-oral lesions, one at the tongue and another in the mouth floor, attended for diagnosis and treatment accompanied by his parents. After incisional biopsy for diagnosis of the lesion on the dorsum of the tongue, the patient evolved with severe lymphoedema of tongue, progressing every day, with the risk of airway obstruction. The patient was initially treated with antibiotics and corticosteroids, and from the sixth day on laser therapy was instituted aiming to activate the lymphatic drainage of the region. The lymphoedema decreased considerably after the first sessio...

When root resorption of incisors occurs due to impaction of maxillary canines, several factors in... more When root resorption of incisors occurs due to impaction of maxillary canines, several factors interfere in the treatment plan, such as the location and severity of root resorption, canine position, lack of space and dental development stage. The case of severe root resorption of permanent maxillary incisors caused by bilaterally impacted permanent maxillary canines and its multidisciplinary therapeutic approach in a 12-year-old girl is presented. After clinical and imaging examination, a treatment plan was outlined including preservation of primary canines, extraction of the permanent maxillary right canine and permanent maxillary left lateral incisor followed by its replacement with the orthodontically tractioned permanent canine and esthetic restoration of the permanent maxillary anterior teeth. One year after treatment, the result was satisfactory and the remaining teeth were still asymptomatic. The risk of root resorption in children with impacted permanent maxillary canines sh...

World Journal of Dentistry

Introduction: This study aimed to evaluate the occurrence of radiodermatitis in patients undergoi... more Introduction: This study aimed to evaluate the occurrence of radiodermatitis in patients undergoing radiotherapy in the head and neck. Materials and methods: Thirty-eight patients were evaluated 6 months after the end of radiotherapy to treat cancer in the head and neck region. The radiodermatitis was clinically classified as absent, acute, or chronic. Data, such as age, sex, race/ color, drinking and smoking habits, number of radiotherapy sessions, and conduction of adjuvant chemotherapy were also obtained. Fisher's exact test and Pearson's test were used to analyze the correlation of the independent variables and the presence of radiodermatitis. Results: The mean age of the patients was 59.71 (± 10.67), and 29 (76.3%) were men, 24 (63.2%) were non-white race/ color, 28 (63.7%) were alcohol consumers, and 33 (86.8%) were smokers. The average number of radiotherapy sessions was 37.26 (± 7.66); 30 (78.9%) patients underwent chemotherapy; and 26 (68.4%) had chronic radiodermatitis. The only variable statistically related to the occurrence of radiodermatitis in the patients was smoking. Conclusion: Radiodermatite was quite prevalent among the studied patients and was directly related to the smoking habit.

Journal of Health Sciences

This study aimed to analyze the salivary flow of irradiated patients for the head and neck cancer... more This study aimed to analyze the salivary flow of irradiated patients for the head and neck cancer treatment after the conclusion of their treatment, and to compare it to the salivary flow of a group of non-irradiated patients. The salivary flow measurement was performed using the stimulated saliva analysis technique by masticatory action. The data collected were organized in planning using the Microsoft Excel program and then analyzed through the program IBM SPSS 20.0. The independent T-test was used to compare the median values between the groups that had normal distribution. 54 patients were evaluated, 18 from Group 1, of irradiated patients with an average time of ending radiotherapy of 11 months; and 36 patients from Group 2, with non-cancerous and non-irradiated patients. The mean salivary flow of Group 1 patients was 0.39 (± 0.85) and 100% of the patients expelled less than 3.5mL of saliva after stimulation for five minutes. Among the patients from Group 2, the mean salivary f...

Supportive Care in Cancer

Case Reports in Pathology

Background. Field cancerization is a phenomenon in which prolonged exposure to carcinogens induce... more Background. Field cancerization is a phenomenon in which prolonged exposure to carcinogens induces changes throughout the epithelium leaving the field ready for the appearance of premalignant or malignant lesions. These alterations can promote the development of multiple carcinomas and explain the appearance of recurrences and second primary tumors. The objective of this study was to report the case of a patient who developed six oral cavity tumors in five years of treatment and, also, demonstrate the immunohistochemical changes for p53 and Ki-67, routinely used to assess dysplasic regions. Case Report. When altered, p53 and Ki-67 suggest the presence of field cancers, an area with genetically altered cells, presenting a high risk of developing premalignant and malignant lesions. This phenomenon explains the recurrence of malignant neoplasms after tumor resections. Conclusion. In addition, early identification of potentially malignant lesions in cases of second primary tumors is ess...

Revista Odontológica do Brasil Central

Objetivo: Este trabalho teve como objetivo traçar o perfil dos pacientes especiais atendidos em a... more Objetivo: Este trabalho teve como objetivo traçar o perfil dos pacientes especiais atendidos em ambiente hospitalar em Mato Grosso (MT). Material e método: A pesquisa foi realizada através de prontuários de pacientes especiais atendidos nos anos de 2016, 2017 e 2018 no Centro Estadual de Odontologia para Pacientes Especiais (CEOPE), Cuiabá- MT. Os parâmetros analisados foram: sexo (masculino e feminino), idade, condição clínica prévia (doenças metabólicas; condição de déficit cognitivo; doenças psíquicas; sequelas físicas permanentes e má formação congênita), tipo da anestesia geral, local, não realizado), e dos procedimentos realizados (invasivos; não invasivos; ambos), e se recebe ou não cuidados em residência. Resultados: Os pacientes atendidos em ambiente hospitalar eram em sua maioria do sexo masculino 28 (60,86%). A faixa etária mais prevalente foi adulta (entre 19 e 59 anos) com 31 pacientes (67,39%). A condição clínica prévia mais frequente entre os pacientes foi doenças crô...

BioMed Research International

Objective. The aim of the present study was to characterize a novel resin-based monoblock endodon... more Objective. The aim of the present study was to characterize a novel resin-based monoblock endodontic obturation system consisting of a polymeric cone and a resin-based endodontic sealer. Methods. The preliminary tests performed for the experimental cone were as follows: cohesive strength, dimensional stability, standardization of the diameter and taper, calcium ion release, and radiopacity, for the characterization of the experimental sealer, film thickness and flow tests were performed. Tests were performed according to the American National Standards Institute/American Dental Association (ANSI/ADA) Standards Nos. 57 and 78. The experimental cone was compared to gutta-percha, whereas the experimental sealer was compared to AH Plus. Data were analyzed by Student’s t-test (α = 0.05). Results. The experimental cone had superior values for cohesive strength and dimensional stability compared to gutta-percha. Regarding calcium ion release, the experimental system continued to release ca...

Journal of Oral Implantology

This case report describes the rehabilitation of a patient who received dental implants in trauma... more This case report describes the rehabilitation of a patient who received dental implants in traumatic bone cyst areas (TBC). A 24-year-old male patient sought dental treatment for the bilateral absence of the mandibular second premolars. Radiographic examination revealed bilateral large radiolucent images in the mandible body. Surgical exploration confirmed the diagnosis of TBC. Rehabilitation with dental implants was performed using different approaches on each side. One cystic cavity was filled with blood clot and allogenic bone graft; the other was filled only with blood clot. After 5 years, the implants are osseointegrated and functioning. The filling of the traumatic bone cyst cavity with local blood clot in contact with the implant presented clinical and radiographic success similar to that obtained with filling with bone graft in the same patient. Thus, in this patient, the blood clot-only approach can be considered as a viable, safe-low cost alternative to blood clot and graf...

Forensic science international, 2017

Teeth are widely used samples in forensic human genetic identification due to their persistence a... more Teeth are widely used samples in forensic human genetic identification due to their persistence and practical sampling and processing. Their processing, however, has changed very little in the last 20 years, usually including powdering or pulverization of the tooth. The objective of this study was to present demineralized root tips as DNA sources while, at the same time, not involving powdering the samples or expensive equipment for teeth processing. One to five teeth from each of 20 unidentified human bodies recovered from midwest Brazil were analyzed. Whole teeth were demineralized in EDTA solution with daily solution change. After a maximum of approximately seven days, the final millimeters of the root tip was excised. This portion of the sample was used for DNA extraction through a conventional organic protocol. DNA quantification and STR amplification were performed using commercial kits followed by capillary electrophoresis on 3130 or 3500 genetic analyzers. For 60% of the uni...

Annals of maxillofacial surgery

Pierre Robin sequence (PRS) is characterized by the triad micrognathia, glossoptosis, and airway ... more Pierre Robin sequence (PRS) is characterized by the triad micrognathia, glossoptosis, and airway obstruction, commonly associated with cleft palate. This study reports the case of a patient with characteristics consistent with the diagnosis of PRS in the 1(st) week of life. To stabilize the airway, oro-tracheal intubation was performed without success, followed by tracheostomy and glossopexy and after a small improvement in symptoms, it was decided to perform the mandibular distraction osteogenesis (MDO). At the age of 6, her maxillofacial development was within expectations, with patent airway, the presence of deciduous teeth, and without neurological impairment. The MDO described in this case allowed patient's respiratory and feeding improvement, thus avoiding episodes of cyanosis, allowing timely removal of the tracheostomy and glossopexy, and execution of palatoplasty at the right time. While it is uncertain whether MDO will replace the possible need for future orthognathic ...

Pediatric dentistry, Jan 15, 2017

The purpose of this study was to examine the rate of dental caries and the periodontal status of ... more The purpose of this study was to examine the rate of dental caries and the periodontal status of children and adolescents with cleft lip and palate (CLP) and to compare them with gender- and age-matched control subjects. A total of 156 five- to 18-year-olds, with or without CLP, were examined for dental caries (decayed, missing and filled permanent teeth and primary surfaces [DMFT and dmfs, respectively] indices), plaque index (PI), the gingival bleeding index (BI), clinical attachment level (CAL), and probing pocket depth (PPD). Diagnoses of gingivitis (localized and generalized) and periodontitis (mild, moderate, and advanced) were performed. Characteristics such as gender, age group, cleft type, socioeconomic status, dental occlusion, and the use of orthodontic appliance were analyzed. DMFT and dmfs scores were significantly higher in the control group. The PI, BI, and PPD indices were higher in the CLP group. Respectively, in individuals with and without CLP, 49 percent and 75 p...

The Open Dentistry Journal, 2016

Background: Lipoma is a benign neoplasm originated from adipose cells circumscribed by connective... more Background: Lipoma is a benign neoplasm originated from adipose cells circumscribed by connective tissue. This neoplasm represents about 1% to 4.4% of all oral benign tumors and it is rarely located in the palate area. Objective: This case reports the occurrence of an oral lipoma in the hard palate of a 57-year-old woman and discusses its etiology and treatment. Case Report: The treatment consisted in the total resection of the lesion and laser therapy. The patient is being followed up for forty three months with no signs of recurrence. Conclusion: Lipoma in hard palate is a rare entity that may be associated with endocrine factors and local inflammation.

International Dental Journal, 2016

Training culturally competent graduates who can practice effectively in a multicultural environme... more Training culturally competent graduates who can practice effectively in a multicultural environment is a goal of contemporary dental education. The Global Oral Health Initiative is a network of dental schools seeking to promote global dentistry as a component of cultural competency training. Before initiating international student exchanges, a survey was conducted to assess students&amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; awareness of global dentistry and interest in cross-national clerkships. A 22-question, YES/NO survey was distributed to 3,487 dental students at eight schools in seven countries. The questions probed students about their school&amp;amp;amp;amp;amp;amp;amp;amp;amp;#39;s commitment to enhance their education by promoting global dentistry, volunteerism and philanthropy. The data were analysed using Vassarstats statistical software. In total, 2,371 students (67.9%) completed the survey. Cultural diversity was seen as an important component of dental education by 72.8% of the students, with two-thirds (66.9%) acknowledging that their training provided preparation for understanding the oral health care needs of disparate peoples. A high proportion (87.9%) agreed that volunteerism and philanthropy are important qualities of a well-rounded dentist, but only about one-third felt that their school supported these behaviours (36.2%) or demonstrated a commitment to promote global dentistry (35.5%). In addition, 87.4% felt that dental schools are morally bound to improve oral health care in marginalised global communities and should provide students with international exchange missions (91%), which would enhance their cultural competency (88.9%) and encourage their participation in charitable missions after graduation (67.6%). The study suggests that dental students would value international exchanges, which may enhance students&amp;amp;amp;amp;amp;amp;amp;amp;amp;#39; knowledge and self-awareness related to cultural competence.

Case Reports in Dentistry, 2016

Peripheral giant cell granuloma (PGCG) is a nonneoplastic lesion that may affect any region of th... more Peripheral giant cell granuloma (PGCG) is a nonneoplastic lesion that may affect any region of the gingiva or alveolar mucosa of edentulous and toothed areas, preferentially in the mandible and rarely occurring in children. This report describes the clinical and histopathological findings of a PGCG diagnosed in the maxilla of a 9-year-old boy associated with a tooth erupting improperly and a traumatic habit. The patient did not present anything noteworthy on extraoral physical examination or medical history, but the habit of picking his teeth and “poking” the gingiva. The oral lesion consisted of an asymptomatic, rounded, pink colored, smooth surface, soft tissue injury with fibrous consistency and approximated size of 1.5 cm located in the attached gingiva between the upper left permanent lateral incisor and the primary canine of the same side. Excisional biopsy was performed through curettage and removal of the periosteum, periodontal ligament, and curettage of the involved teeth ...

International Journal of Surgery Case Reports, 2016

INTRODUCTION: Osteoblastoma is a rare benign bone tumor with locally aggressive behavior in some ... more INTRODUCTION: Osteoblastoma is a rare benign bone tumor with locally aggressive behavior in some cases; however, with rare malignant transformations. A case of osteoblastoma in a seven-year-old patient's mandible is presented. PRESENTATION OF CASE: After the diagnosis, the patient underwent two stages of treatment. In the first intervention, an intralesional curettage was performed as well as a marsupialization of the lesion, in order to reduce its volume and allow a second and more conservative surgical period. In the second surgery, after reducing the lesion, enucleation and rigid internal fixation of the mandible were performed. DISCUSSION: The treatment has proven to be satisfactory, without recurrence of the injury for two years, when the patient suffered a car accident that caused the synthetic material to fracture. Conclusion: The internal fixation was surgically replaced and the patient is being monitored after six years of the initial intervention, without presenting further changes.