Maria Eugenia Guerrero
@unmsm.edu.pe
Medico Surgical Stomatology
Universidad Nacional Mayor de San Marcos
Dr. Maria Eugenia Guerrero is working as full professor at Universidad Nacional mayor de San Marcos in Lima, Perú. Dr. Guerrero graduated as a dentist at Saint Mary Catholic University in Perú. In 2004 she won the Belgian Technical Cooperation grant and travelled to Belgium to perform a Master in Medical Sciences. She was an ITI Scholar at the University of Geneva, Switzerland. She further received the Interfaculty Council for Development Co-operation (IRO, KU Leuven) grant to continue her PhD studies at the Oral Imaging Center and the OMFS IMPATH research group (Oral & Maxillofacial Surgery – Dept Imaging and Pathology) at the KU Leuven. Her research interests include Oral Imaging, Periodontics and Dental Implants
RESEARCH INTERESTS
Cone-beam CT, dental implants, Periodontology, third molar
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Jesus Cabanillas, Ruth Risco, Arnaldo Munive-Degregori, Maria Eugenia Guerrero, Franco Mauricio, and Frank Mayta-Tovalino
Medknow
Abstract Aim: This narrative review aimed at identifying the existing scientific literature investigating periodontitis and neuropathic diseases. Materials and Methods: A search of the literature published between 2000 and 2022 was carried out in the electronic databases of Scopus and PubMed. Studies in which the eligible articles were mainly published in English were included. Descriptive correlational studies, case–control studies, comparative studies, and cohort studies were also included. The following main keywords were used: “Neuropathic diseases,” “Periodontitis,” “Alzheimer’s disease,” and “Porphyromonas gingivalis.” Results: This narrative review found that cognitively impaired persons with severe periodontitis had a higher prevalence and incidence of periodontal diseases than the rest of the population. A significant positive correlation of salivary interleukin (IL)-1beta and immediate recall scores involved in cognition was also evident. It indicates that the most investigated parameter was whether there is any common link between periodontal disease and neurodegeneration. No randomized controlled clinical studies were found in the current literature review. Conclusions: Based on the literature reviewed, there is currently no strong scientific evidence to support or discourage the cause–effect relationship of periodontal diseases and neurodegenerative diseases.
Allisson Zarate-Reyes, Yris Chavez-Lazo, Maria Eugenia Guerrero, Novaldy Wahjudianto, and Dian Agustin Wahjuningrum
Elsevier BV
Carlos Quispe-Vicuna, Miguel Cabanillas-Lazo, Carlomagno Villarreal-Inca, Maria Eugenia Guerrero, John Barja-Ore, Abigail Temoche, and Frank Mayta-Tovalino
Medsci Publications
Background: COVID-19 has generated new gaps in knowledge, which in turn has had a significant impact on different areas of research, one of these being Reproductive Medicine. However, to date, no analysis of publications on this topic has been identified. Therefore, the aim of this study was to perform a bibliometric analysis of the worldwide scientific production of COVID-19 in Reproductive Medicine. Method: We conducted an advanced bibliographic search in the Scopus database to identify articles on COVID-19 and Reproductive Medicine from 2019 to May 2022. The collected data was analyzed with Scival software, and the results were presented through summary tables. Result: A total of 737 publications were collected and analyzed, of which 594 were original articles and 143 reviews. Leila V. Adamyan and Sechenov First Moscow State Medical University (Russia) were the most productive author and institution, respectively. The European Journal of Obstetrics, Gynecology and Reproductive Biology was the journal with the highest number of publications. In addition to that, we report a steady increase in the number of publications between 2020 and 2021, especially of articles published in first quartile (Q1) journals. Finally, although most of the publications had only national collaboration, the highest impact was found in those studies with international collaboration. Conclusion: The scientific production on Reproductive Medicine and COVID-19 has reported a steady increase in recent years, especially in Q1 journals, which evidences a special interest in the subject by the scientific community. However, since new articles on COVID-19 are constantly being published, we recommend future bibliometric analyses to better analyze the topic.
Edith Perez, Liliana Salinas, Roman Mendoza, Maria Eugenia Guerrero, Jose Oliva, and Frank Mayta-Tovalino
Medknow
Abstract Aims and Objectives: The aim of this study was to describe the mechanism of dental implants osseointegration in patients with congenital and degenerative genetic bone disorders. Materials and Methods: A PubMed and Scopus documents search was carried out between November 2021 in the, using words such as “osseointegration,” “degenerative disease,” “congenital disease,” and “dental implants.” Results: The thirteen articles selected dealt with dental implants osseointegration in patients with congenital and degenerative bone disorders. The influence and repercussion of these diseases on the bone system, as well as the osseointegration process were described from healing to bone remodeling. In addition, certain articles described some considerations to improve the osseointegration process in patients suffering from these types of conditions. Conclusions: Within the limitations of this literature review we can conclude that osseointegration in patients with ectodermal dysplasia and osteoporosis could be achieved. However, the planning process for dental implant placement in these patients should be more meticulous and individualized considering the degree of tissue involvement as well as the patient’s age and skeletal development compared to systemically healthy patients.
Paola Manrique, Andrés Agurto, and María Eugenia Guerrero
Universidad de Costa Rica
The purpose of this study was to compare the average distances from the root apices of the first molars, second molars, and second premolars to the mandibular canal according to sex in the Peruvian population using cone-beam computed tomography (CBCT). Eighty CBCT scans of Peruvian patients aged from 15-80 years were examined. After locating the mandibular canal, measurements of the vertical distances from the mandibular canal to the apices of the second premolars, as well as the first molars and second molars, were made. For the statistical analysis, Student’s t test was used for both paired and unpaired samples, with a significance level of p<0.05. On the right side, the second molar presented a mean distance of 3.99mm for males and 2.87mm for females, showing a significant difference (p<0.05). When compared bilaterally, no significant differences were found (p>0.05) between the distances from the apices of the second premolars and the first and second molars to the mandibular canal. However, for the second premolars and second molars on the left side, the values were higher, with averages of 5.52mm and 3.75mm, respectively.The mesial roots of the second molars were closer to the mandibular canal. In addition, women showed shorter distances than men.
Frank Mayta-Tovalino, John Barja-Ore, Yesenia Retamozo-Siancas, Alicia Fernandez-Giusti, MariaEugenia Guerrero, and Arnaldo Munive-Degregori
Medknow
Frank Mayta-Tovalino, Cristhel Juarez, Luis Langa, Roman Mendoza, MariaE Guerrero, and Jose Oliva
Medknow
Aim: The aim of this article is to describe the existing scientific literature on photodynamic therapy (PDT) effectiveness for peri-implantitis treatment. Materials and Methods: A date-restricted electronic search strategy was performed in PubMed and Scopus databases. The following words were used: “peri-implant photodynamic therapy,” “photodynamic therapy in implantology,” “effectives of photodynamic therapy in peri-implantitis,” “Antimicrobial Photodynamic Therapy,” “Photodynamic Therapy for the treatment of peri-implantitis,” and “Mechanical debridement and photodynamic therapy in implantology.”Results: Of the 15 articles, 13 articles were selected, of which 11 were prospective and experimental studies and 2 were longitudinal. The PDT effectiveness of peri-implantitis inflammation treatment was the most reported and investigated. Conclusion: There is scientific evidence that may support the use of PDT for peri-implantitis treatments. However, even more studies would still be needed to have solid evidence.
Frank Mayta-Tovalino, Carlos Quispe-Vicuña, Miguel Cabanillas-Lazo, Arnaldo Munive-Degregori, Maria Eugenia Guerrero, and Roman Mendoza
Elsevier BV
José Carlos Rosas-Díaz, Violeta Malpartida-Carrillo, Nancy Edith Córdova-Limaylla, Maria Eugenia Guerrero, Jerson Jimmy Palomino-Zorrilla, Luis Adolfo Cervantes-Ganoza, and César Félix Cayo-Rojas
Medknow
Abstract Aim: Stability measured by resonance frequency analysis (RFA) is an important factor to be considered in the success of dental implant treatments, which can be evaluated from the implant stability quotient (ISQ). The aim of the present case series was to map the RFA during healing of implants with nanostructured hydroxyapatite surface to describe the behavior of ISQ values related to individual factors. Materials and Methods: Twenty-three implants were placed in eight patients by conventional surgical protocol, and ISQ values were monitored from the day of implant placement until week 20. To obtain the ISQ values, an Osstell device was used and the placed implants were grouped in proportional amounts to describe the ISQ behavior considering the length (≤10 or >10 mm), the diameter (3.5 or 4.3 mm), the insertion torque (<40 N-cm or ≥40 N-cm), and the placement area (maxilla or mandible). Results: All the implants assessed decreased their values in the first 3 weeks after placement. Subsequently, the ISQ values increased by amounts similar to those obtained at the time of the placement and even more. Implants with length >10 mm, diameter 4.3 mm, and insertion torque ≥40 N-cm showed the highest ISQ values. Conclusions: A decrease in the ISQ values of dental implants with nanostructured hydroxyapatite surface was evidenced between weeks 2 and 3 considering length, diameter, insertion torque, and maxillary or mandibular placement site.
Frank Mayta-Tovalino, Javier Puchuri-Lopez, Manuel Galvez-Sandoval, MariaE Guerrero, Arnaldo Munive-Degregori, Cesar Mauricio-Vilchez, and John Barja-Ore
Medknow
BACKGROUND: Healthcare workers are under significant constant stress as a result of the coronavirus disease 2019 (COVID-19) pandemic. The aim of this study, therefore, was to analyze bibliometrically the impact, trend, and characteristics of scientific production related to the mental health of health professionals during the COVID-19 pandemic. MATERIALS AND METHODS: A bibliometric analysis of the scientific production on the mental health of health professionals and COVID-19 in Scopus from December 2019 to December 2021 was performed. An advanced search was designed using Boolean operators in Scopus and applied in April 2022. The metadata was entered into Microsoft Excel for the elaboration of the tables, SciVal to obtain the bibliometric indicators, and VosViewer to plot collaborative networks. RESULTS: A total of 1393 manuscripts, 1007 of which met the eligibility criteria, were found on the mental health of health workers and COVID-19. The country with the highest academic production was the United States and Harvard University with 27 manuscripts as the most productive institution. The scientific journal with the highest scientific production was the International Journal of Environmental Research and Public Health with 138 manuscripts and 1580 citations, and the author with the most citations per publication was Carnnasi Claudia with 69.8. CONCLUSION: The countries with the highest economic income occupy the first places in scientific production on the mental health of health workers during the COVID-19 pandemic, with the United States as the leader. There is a gap in the scientific knowledge on the mental health of healthcare workers during the COVID-19 pandemic in middle- and low-income countries.
R. Alvarez-Medina, ME. Guerrero, NE. Córdova-Limaylla, LE. López-Llamosas, JL. Huamaní-Echaccaya, JJ. Palomino-Zorrilla, and JC. Rosas-Díaz
Medicina Oral, S.L.
Background The purpose was to evaluate the variation in thickness and early healing of the donor area of the palate with the placement of a collagen sponge and the use of fibrin-rich plasma (L-PRF). Material and Methods Thirty patients who required mucogingival surgery treatment were selected and distributed into 2 groups. After obtaining the free palate graft, L-PRF was placed in Group A, and a collagen sponge was placed in Group B. The healing process of the palate was evaluated at 24 hours and 7, 14, 21 and 28 days postsurgery. The thickness of the donor area (palate) was evaluated using an acrylic splint. These measurements were made before and 4 months after surgery. Results In the collagen sponge group, less gain of the palatal mucosa was observed, with a mean difference of 0.1 ± 0.8 mm (CI: −0.341–0.518) (p=0.691), whereas in the fibrin-rich plasma group, a mean difference of 0.0 ± 0.5 mm (CI: −0.229–0.229) (p=0.934) was found; however, when comparing the gain of the palatal mucosa in both groups, no significant difference was observed (p=0.932). The healing index at 24 hours indicated the presence of clots, on Day 28 vascularisation and total epithelialisation (100.0%), and finally, the collagen sponge group on Day 14 presented 93.3% partial vascularisation of connective tissue and 33.3% L-PRF (p=0.001). Conclusions There was no statistically significant difference in the thickness of the palatal mucosa after the use of L-PRF and the collagen sponge. Key words:Palate thickness, connective tissue graft, fibrin-rich plasma, collagen sponge, palate healing.
Frank Mayta-Tovalino, Carlos Quispe-Vicuna, Miguel Cabanillas-Lazo, John Barja-Ore, Cesar Mauricio-Vilchez, MariaEugenia Guerrero, and Arnaldo Munive-Degregori
Medknow
Frank Mayta-Tovalino, Arnaldo Munive-Degregori, Silvia Luza, FlorC Cárdenas-Mariño, MariaEugenia Guerrero, and John Barja-Ore
Medknow
Frank Mayta-Tovalino, Josmel Pacheco-Mendoza, Daniel Alvitez-Temoche, Juan Alvítez, John Barja-Ore, Arnaldo Munive-Degregori, and Maria Eugenia Guerrero
Elsevier BV
Frank Mayta-Tovalino, Alicia Fernandez-Giusti, Cesar Mauricio-Vilchez, John Barja-Ore, Maria Eugenia Guerrero, and Yesenia Retamozo-Siancas
Elsevier BV
Carlos Quispe-Vicuña, Miguel Cabanillas-Lazo, Maria Eugenia Guerrero, Franco Mauricio, John Barja-Ore, and Frank Mayta-Tovalino
Elsevier BV
Frank Mayta-Tovalino, Miguel Cabanillas-Lazo, Carlos Quispe-Vicuña, Milagros Pascual-Guevara, John Barja-Ore, MariaEugenia Guerrero, and Arnaldo Munive-Degregori
Medknow
Background: Tuberculosis is one of the leading causes of death worldwide affecting mainly low- and middle-income countries. Therefore, the objective is to analyze the bibliometric characteristics of the application of artificial intelligence (AI) in tuberculosis in Scopus. Methods: A bibliometric study, the Scopus database was used using a search strategy composed of controlled and free terms regarding tuberculosis and AI. The search fields “TITLE,” “ABSTRACT,” and “AUTHKEY” were used to find the terms. The collected data were analyzed with Scival software. Bibliometric data were described through the figures and tables summarized by absolute values and percentages. Results: Thousand and forty-one documents were collected and analyzed. Yudong Zhang was the author with the highest scientific production; however, K. C. Santosh had the greatest impact. Anna University (India) was the institution with the highest number of published papers. Most papers were published in the first quartile. The United States led the scientific production. Articles with international collaboration had the highest impact. Conclusion: Articles related to tuberculosis and AI are mostly published in first quartile journals, which would reflect the need and interest worldwide. Although countries with a high incidence of new cases of tuberculosis are among the most productive, those with the highest reported drug resistance need greater support and collaboration.
Frank Mayta-Tovalino, Carlos Quispe-Vicuña, Miguel Cabanillas-Lazo, Arnaldo Munive-Degregori, Maria Eugenia Guerrero, and Roman Mendoza
Elsevier BV
Frank Mayta-Tovalino, Josmel Pacheco-Mendoza, Daniel Alvitez-Temoche, Roman Mendoza, Franco Mauricio, John Barja-Ore, and Maria Eugenia Guerrero
Hindawi Limited
Objective. To evaluate Peruvian scientific publications in dentistry according to sex disparity (2011-2020). Methods. This was a retrospective bibliometric study. The unit of analysis was made up of Peruvian dentistry publications indexed in the Scopus database during the last 10 years. Records with metadata (410) corresponding to the period 2011-2020 were downloaded and standardized and refined by analyzing the metadata. The search strategy was developed based on the individual profiles of each Peruvian institution that has a dental school or college. It was evaluated according to the AF-ID of each institution in the Scopus database. In addition, the information provided by the Scopus SciVal tool was used. Finally, publications, impact, and collaboration indicators were used, such as total number per document, per author, average of citations, h -index, collaboration rate, number of institutions, the Source Normalized Impact per Paper indicator, the CiteScore, and the Scopus Field-Weighted Citation Impact. Results. The greatest increase was evident in 2018, with 2019 and 2020 being the maximum peak of scientific publication growth. However, sustained growth has not been evidenced in relation to the female sex. The analysis of coauthorship by the authors revealed four large clusters, of which the first three were represented by male researchers, such as Arriola-Guillen L., Mayta-Tovalino F., and Mendoza-Azpur G., and one by a female, Guerrero María E. Evaluating the national scientific publication in dentistry according to the CiteScore, it was found that most of the publications (145) from Peru were published in Q4 journals, although 90 manuscripts were published in Q1 journals. Conclusions. The Peruvian national dental publication in the last 10 years was mainly supported by male dentists, which invites us to reflect on the need to equalize opportunities so that female researchers can also reduce these gaps.
Miguel Cabanillas-Lazo, Carlos Quispe-Vicuña, John Barja-Ore, Alicia Fernandez-Giusti, Arnaldo Munive-Degregori, Yesenia Retamozo-Siancas, Maria Eugenia Guerrero, and Frank Mayta-Tovalino
Hindawi Limited
Objective. To perform a bibliometric analysis of scientific production related to gut microbiota and Parkinson’s disease between 2011 and 2020. Methods. A descriptive, retrospective, cross-sectional, and bibliometric study was carried out. The Scopus database was used as a source to evaluate the worldwide scientific production on intestinal microbiota and its relationship with Parkinson’s disease. Data were extracted from Scopus using a formula developed with thesaurus terms MeSH (Medline) and Emtree (Embase). Results. A total of 591 documents were found. The retrieved manuscripts received an average of 41.9 citations per document. Four of the 10 most productive authors were Italian. The University of Helsinki (Finland) was the institution with the highest scientific production (19 papers) and the highest impact (5921 citations). In terms of productivity and impact, Movement Disorders ranked first with 38 papers and 2782 citations, and those papers published in Q1 quartile journals exceeded the sum of the remaining quartiles. Papers with international collaboration were the most cited. Keyword analysis showed that the terms Parkinson Disease, Disease, and Intestine Flora were the most frequent. Conclusion. The number of papers on Parkinson’s disease and gut microbiota has been increasing; however, high-quality journals maintain the same high publication rate. International collaboration from high-income countries played an important role in the impact generated by the publications.
Alejandra Torres-Loyola, Carlos Rojas-Arana, Arnaldo Munive-Degregori, Maria Eugenia Guerrero, Franco Mauricio, Josmel Pacheco-Mendoza, and Frank Mayta-Tovalino
Hindawi Limited
Objective. To perform a bibliometric analysis of the scientific research on the development of vaccines against dental caries. Methods. An extraction of the scientific production published on the development of vaccines against dental caries between 2011 and 2020 was carried out from the Scopus database. Microsoft Excel was used for the elaboration of tables and SciVal for the bibliometric analysis of the data, which were divided into indicators of production, impact, and collaboration. Finally, VOSviewer was used for co-occurrence analysis of keywords and collaborative networks. Results. 106 studies were retrieved from the Scopus database, which were conducted on the development of dental caries vaccines within the years 2011–2020. Wuhan University, in China, was the university with the highest scientific production on the subject, with 4 publications. Regarding the most productive journals, the first place was occupied by the Journal of Dental Research with 7 publications. Regarding the most productive journals, the first place was occupied by the Journal of Dental Research with 7 publications. The highest percentage of the documents analyzed was in quartile 1 journals and in the national collaboration pattern. Conclusion. Most of the manuscripts regarding the development of vaccines against dental caries were published in China and in Q1 quartile journals. In addition, Yan Huimin, Yang Jingyi, Zhou Dihan, Yang Yi, Li Yuhong and Fan Mingwen were found to top the list of most productive authors. The Journal of Dental Research was also identified as the most productive and cited journal.