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BACKGROUND AND OBJECTIVE: As elsewhere in the world, the prevalence of periodontitis in stages I-II is high in the Latin American population, this scenario emphasizes the need for identification of urgent needs for allocating adequate resources to provide diagnosis, prevention, and treatment of these diseases. The aim of this Delphi study was to predict the trends in periodontology/periodontics in the Latin American region by the year 2030. METHODS: A steering committee and an advisory group of experts in periodontology/periodontics were selected from 16 countries. An open questionnaire of 60 questions was validated and used following the Delphi methodology. RESULTS: Two hundred and twenty-five experts from Latin America answered the two rounds of the questionnaire. Moderate to strong consensus was reached on 45 questions (75%). The prediction was that the prevalence of gingivitis and periodontitis in stages I and II will be maintained, the importance of the link with systemic diseases will increase, and the impact of prevention and periodontal treatment will also increase, mainly in the private sector. There was a strong consensus that plastic and regenerative surgical procedures will increase, as well as the demand for training in the specialty of periodontology. CONCLUSIONS: The present study has provided relevant and useful information on predictions in periodontology/periodontics in Latin America, with important level of consensus among experts. It has been predicted that periodontitis will still be a highly prevalent disease, and its links with other medical conditions should demand more attention by health authorities to develop adequate prevention and management policies and strategies.

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The aim of this systematic review was to evaluate the methodological quality and the consistency of recommendations of clinical practice guidelines (CPGs) in Periodontology. An electronic search was conducted in two databases, MEDLINE and EMBASE, eight CPGs databases, and home pages of scientific societies in Periodontology up to April 2022. Three reviewers independently assessed methodological quality using the AGREE II instrument. In addition, we evaluated the consistency of the recommendations. Eleven CPGs were included, and the topics developed focused on prevention, diagnosis, risk factors, surgical and non-surgical periodontal treatment, antimicrobial therapy, root coverage, and maintenance. We found that the AGREE domains 2 (Stakeholder involvement) and 5 (Applicability) obtained the lowest scores. Domains 1 (Scope and purpose), 3 (Rigor of development) and 4 (Clarity of presentation) obtained the highest scores among the evaluated CPGs. The clinical recommendations for treatment of periodontal diseases were mostly consistent. Overall, the quality of CPGs used in periodontics was high. There was consistency of recommendations in specific fields. These findings may help researchers to promote CPGs focused on different fields of periodontics that have not yet been developed. Furthermore, the clinician will be able to make better clinical decisions.

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Abstract The aim of this systematic review was to evaluate the methodological quality and the consistency of recommendations of clinical practice guidelines (CPGs) in Periodontology. An electronic search was conducted in two databases, MEDLINE and EMBASE, eight CPGs databases, and home pages of scientific societies in Periodontology up to April 2022. Three reviewers independently assessed methodological quality using the AGREE II instrument. In addition, we evaluated the consistency of the recommendations. Eleven CPGs were included, and the topics developed focused on prevention, diagnosis, risk factors, surgical and non-surgical periodontal treatment, antimicrobial therapy, root coverage, and maintenance. We found that the AGREE domains 2 (Stakeholder involvement) and 5 (Applicability) obtained the lowest scores. Domains 1 (Scope and purpose), 3 (Rigor of development) and 4 (Clarity of presentation) obtained the highest scores among the evaluated CPGs. The clinical recommendations for treatment of periodontal diseases were mostly consistent. Overall, the quality of CPGs used in periodontics was high. There was consistency of recommendations in specific fields. These findings may help researchers to promote CPGs focused on different fields of periodontics that have not yet been developed. Furthermore, the clinician will be able to make better clinical decisions.

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OBJECTIVE: To identify and describe unusual soft tissue complications of periodontal plastic surgery procedures at the recipient site after periodontal grafts. MATERIALS AND METHODS: Two independent reviewers performed a comprehensive search in MEDLINE, Cochrane, periodontics journals, reference lists, and grey literature for articles dated up to July 2021. Publications related to surgical interventions only around the teeth with an unusual complication at the recipient site were selected. No restrictions were made in the number of cases, follow-up period, or language. The Cochrane Collaboration's tool for assessing risk of bias, the Newcastle-Ottawa Scale (NOS), and two validated case report/series checklists were used to critically appraise the studies. RESULTS: A total of 1434 articles were examined, of which 28 met the inclusion criteria: one RCT, two cohort studies, and twenty-five case reports/series. The periodontal plastic surgery procedures described in these articles were conducted to treat lack of attached gingiva and gingival recessions. The following unusual complications were found: bone exostosis, epithelial inclusion, root resorption, abscess, overgrowth, "liver clot" formation, and oroantral communication. CONCLUSION: Bone exostosis and epithelial inclusions were the most prevalent unusual complications following treatment with subepithelial connective tissue graft, free gingival graft, and acellular dermal matrix allograft. Due to the nature of the reports, the clinical recommendations for diagnosis and treatment cannot be homogenized. Clinical studies reporting complications are required to develop management protocols (PROSPERO CRD42021230875). CLINICAL RELEVANCE: Clinicians need to know the main complications that can occur in mucogingival surgeries as well as their clinical management to provide a successful and predictable treatment.

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BACKGROUND: The socket seal surgery (SSS) technique is a common alternative for the management of the post-extraction sockets that requires a primary closure of the wound to promote proper regeneration and ridge preservation. OBJECTIVE: To learn about the effect of different SSS techniques on alveolar ridge preservation MATERIAL AND METHODS: Two independent and calibrated reviewers conducted an electronic search in PubMed, Cochrane, and Web of Science for randomized clinical trials (RCT) published up to June 2020. The evaluation of the risk of bias in the included studies was carried out following the Cochrane manual for interventions of systematic reviews, version 5.1.0. A meta-analysis of ridge width changes at - 1, - 3, and - 5 mm cutoff points from bone crest was conducted using a random-effects model. The risk of types I and II errors against accrued data was appraised obtaining the required information size using a trial sequential analysis package (TSA). RESULTS: A total of 135 sockets located in the esthetic zone were evaluated with a minimum of a 3-month follow-up after tooth extraction in 6 RCTs. The evaluated SSS techniques were free gingival graft (FGG), collagen matrix (CM), collagen sponge (CS), acellular dermal matrix (ADM), and polytetrafluoroethylene membrane (PTFEm). The FGG in sockets without bone filling showed significant results in preserving both buccal and lingual bone height (- 1.42 mm in the experimental group versus - 0.01 in the control group). The comparison of CM and FGG with bone filling did not show clinical differences in terms of dimensional bone changes. No clinical differences were found in either width or gingival thickness when comparing CM and CS. The meta-analyses of RW changes comparing CM versus FGG showed no significant differences, but a trend for lessening horizontal reduction at - 1, - 3, and - 5 mm in favor of FGG. The TSA showed that accrued data did not reach the required information size, and more evidence is required for clinical significance inferences. CONCLUSIONS: There are several predictable SSS techniques to improve clinical results in ridge preservation. More clinical studies in the form of clinical trials are required to demonstrate the superiority of one technique over another.

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RESUMEN: Comparar mediante una revisión sistemática los resultados clínicos de los procedimientos de cirugía plástica periodontal/periimplantar (CP) con injerto de tejido blando autógeno (ITB) obtenido del área lateral del paladar (ALP) versus del área de la tuberosidad (AT). Se realizó una búsqueda electrónica de ensayos clínicos en la base de datos Medline/Pubmed, Cochrane y las revistas de Periodoncia e Implantes de mayor impacto según la Web of Science, para hallar artículos publicados hasta abril del 2020. Se valoró el riesgo de sesgo de los artículos añadidos según el manual Cochrane Versión 5.1.0 para ensayos clínicos aleatorizados y la escala Newcastle-Ottawa para ensayos clínicos controlados. De una muestra inicial de 930 artículos, cuatro ensayos clínicos (tres aleatorizados) fueron incluidos en el presente estudio, donde se realizaron un total de 87 CP alrededor de piezas e implantes dentales, de las cuales 42 cirugías fueron realizadas con ITB del ALP y 45 cirugías con ITB del AT, se evaluó los resultados desde las 8 semanas hasta los 12 meses. No se hallaron diferencias estadísticamente significativas en los resultados clínicos entre ambos grupos, se mejoró el fenotipo gingival en la zona receptora para el grupo que obtuvo el ITB del AT y el nivel del dolor del sitio donador del AT fue menor en las dos primeras semanas que el sitio donante del ALP. Los estudios incluidos manifestaron un bajo riesgo de sesgo en promedio. Ambas áreas donantes de injerto de tejido blando proporcionan resultados clínicos similares, el injerto del área de la tuberosidad mejora el fenotipo gingival de la zona receptora y reduce el dolor post operatorio en las primeras semanas del sitio donador.

ABSTRACT: The objective of the study was to compare, through a systematic review, the clinical results of periodontal / peri-implant plastic surgery (CP) procedures with autogenous soft tissue graft (ITB) obtained from the lateral palate area (ALP) versus the tuberosity area (AT). We conducted an electronic search of clinical trials in the Medline/Pubmed, Cochrane database and the journals of Periodontics and Implants with the greatest impact according to the Web of Science, to find articles published until April 2020. The risk of bias of the articles added was assessed according to the Cochrane Manual Version 5.1.0 for randomized clinical trials and the Newcastle-Ottawa scale for controlled clinical trials. From the initial sample of 930 articles, four clinical trials were included (three randomized) in the present study, where a total of 87 PC were performed around dental pieces and implants, of which 42 surgeries were performed with ITB of the ALP and 45 surgeries with ITB of the AT, the results were evaluated from the 8 weeks to 12 months. No statistically significant differences were found in the clinical results between the two groups, the gingival phenotype in the receiving area was improved for the group that obtained the ITB of the AT and the level of pain at the donor site was lower in the first two weeks than the ALP donor site. The studies showed a lowrisk of bias on average. Both soft tissue graft donor areas provide similar clinical results, grafting the tuberosity area improves the gingival phenotype of the recipient area and reduces post-operative pain of the donor site in the first few weeks.

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Objetivos: Evaluar el efecto del tratamiento periodontal sobre la artritis reumatoide. Material y Métodos: Se realizó una búsqueda electrónica de ensayos clínicos publicados desde junio de 2009 hasta junio de 2014 en PUBMED, Cochrane y manual en las revistas de Periodoncia con más alto factor de impacto según el ISI web of science: Journal of Clinical Periodontology, Journal of Periodontology, Journal of Periodontal Research y The international Journal of Periodontics and Restorative Dentistry. La búsqueda fue realizada por dos operadores calibrados de manera independiente. Resultados: Se encontraron cuatro artículos del tipo ensayos clínicos, tres randomizados y uno controlado. El tratamiento periodontal redujo los signos y síntomas de la artritis reumatoidea mediante la valoración de marcadores séricos. La evaluación del riesgo de sesgo de los artículos incluídos fue alto. Conclusiones: Aparentemente la terapia periodontal aunada a la terapia sistémica de la artritis reumatoidea mejora el estado sistémico del paciente.

Objectives: To evaluate the effect of periodontal treatment on rheumatoid arthritis. Material and Methods: An electronic search was realized in PubMed, The Cochrane Library and manual search of the most important journals of Periodontology with the highest impact factor according to the ISI web of science: Journal of Clinical Periodontology, Journal of Periodontology, Journal of Periodontal Research and The International Journal of Periodontics and Restorative Dentistry. The search was performed by two operators independently calibrated. Results: We found four clinical trials, three of them were randomized and one was controlled. The periodontal treatment reduced the signs and symptoms of rheumatoid arthritis by assessing serum markers. Assessment of risk of bias of included articles was high. Conclusions: Apparently periodontal therapy combined with systemic therapy of rheumatoid arthritis improve patient status.

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La literatura periodontal contiene numerosas descripciones de procedimientos quirúrgicos diseñados para el recubrimiento radicular en dientes con recesión gingival, basados en injertos autógenos provenientes del paladar o de la tuberosidad. Actualmente, existen otras alternativas que disminuyen la morbilidad postoperatoria con buenos resultados funcionales y estéticos mediante el uso de matriz dérmica acelular (MDA) y matriz de colágeno porcino (MC), las cuales han venido siendo probadas en multiples ensayos clinicos. En la presente serie de casos se describen dos técnicas de recubrimiento radicular para recesiones múltiples utilizando MDA y MC. Se reportan dos pacientes: un primer caso con problemas estéticos en el sector anterosuperior debido a recesiones gingivales y restauraciones en mal estado que recibió MDA (AlloDerm (MR)). El segundo paciente presentaba sensibilidad en el sector anteroinferior además de escasa cantidad de encía queratinizada , la cual recibió MC (Mucograft®). Se obtuvieron resultados favorables en ambos casos demostrando buenos resultados clínicos en el recubrimiento de recesiones gingivales múltiples; considerándolos como una buena alternativa frente a los injertos gingivales autógenos.

Periodontal literature contains numerous descriptions of surgical procedures designed for covering teeth root gingival recession, based on autogenous grafts from the palate or tuberosity. Currently, there are other alternatives that reduce postoperative pain with good functional and aesthetic results; such as the use of acellular dermal matrix (ADM) and Porcine collagen matrix (CM); which have been being tested in multiple clinical trials. Describe two techniques of root coverage for multiple recessions: ADM and CM. This case series present a patient with anterior esthetic problems in the sector due to gingival re- cession and old restoration, which received ADM (AlloDerm ®). Another patient with tenderness in the anterior sector due to poor keratinized gingiva, which received graft CM (Mucograft(MR)). We had favorable results in both cases. Both treatments have shown good clinical results in covering multiple gingival recessions; considering them as a good alternative to autogenous free gingival grafts.

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La Odontología Basada en Evidencia es la aplicación clínica de las mejores evidencias científicas basadas en la experiencia del operador y en las expectativas del paciente. Estas evidencias científicas se presentan día a día en revistas indexadas alrededor del mundo con una actualización constante. El objetivo de la presente revisión es presentar y describir las características de las revistas de mayor impacto científico en el área de Odontología sirviendo como base para la mejor toma de decisiones clínicas en nuestros pacientes. La búsqueda de la información se realizó según el Indice de factor de impacto del ISI Web of Science 2014.

Evidence-Based Dentistry is the clinical application of the best scientific evidence based on operator experience and patient expectations. This everyday scientific evidence presented in indexed journals around the world with constantly updated. The aim of this review is to present and describe the characteristics of the scientific impact of journals in the field of Dentistry serving as a basis for better clinical decision making in our patients. The search for information was made according to index impact factor ISI Web of Science 2014.

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La enfermedad periodontal es una enfermedad inflamatoria destructiva crónica que afecta a los tejidos de soporte del diente y es una de las infecciones crónicas más prevalentes en los humanos con la capacidad de inducir la producción de citocinas proinflamatorias, interviniendo en la regulación de las respuestas inflamatorias que aumentan los niveles de IL-6 y PCR, que da como resultado la activación de las células inflamatorias y endoteliales, pudiendo dar lugar a disfunción endotelial.La disfunción eréctil se define como la incapacidad persistente de lograr y mantener una erección suficiente para permitir una relación sexual satisfactoria y puede ser una manifestación temprana de la arteria coronaria y de la enfermedad vascular periférica, por lo que debe considerarse también como una señal de peligro potencial de la enfermedad cardiovascular. El enlace entre enfermedad periodontal y disfunción eréctil aún está en investigación y la información es muy limitada. Existen factores de riesgo (tabaco, diabetes mellitus y enfermedades cardíacas) compartidos por la disfunción eréctil y la periodontitis crónica que contribuyen a la disfunción endotelial. El objetivo de la presente revisión es dar a conocer la posible relación entre la enfermedad periodontal y la disfunción eréctil y las variables confundentes entre esta relación mediante una revisión de la literatura.

Periodontal disease is a chronic inflammatory destructive disease that affects the tissue supporting the teeth, and is one of the most prevalent chronic infections in humans. It can induce the production of pro-inflammatory cytokines, intervening in the regulation of inflammatory responses affecting the IL-6 and C-reactive protein, and finally activates inflammatory cells and endothelial cells. This can lead to endothelial dysfunction. Erectile dysfunction is defined as the persistent inability to achieve and maintain an erection sufficient to permit satisfactory sexual intercourse and can be an early manifestation of coronary artery and peripheral vascular disease, and should therefore be considered also as a potential warning sign for cardiovascular disease. The link between periodontal disease and erectile dysfunction is still under investigation and the information is very limited. There are risk factors (smoking, diabetes mellitus, and heart disease) shared by erectile dysfunction and chronic periodontitis that contribute to endothelial dysfunction. The aim of this review is to provide plausibility between periodontal disease and erectile dysfunction and confounding variables between this relationship through a literature review.

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The aim of this study was to compare the bone density of bone defects treated with lyophilizated amniotic membrane (LAM) and collagen Membrane (CM), at 3 and 5 weeks. Two bone defects of 4 mm in diameter and 6 mm deep were created in left distal femoral diaphysis of New Zealand rabbits (n = 12). The animals were randomly divided into 2 groups. One of the defects was covered with lyophilized amniotic membrane (Rosa Chambergo Tissue Bank/National Institute of Child Health-IPEN, Lima, Peru) or collagen Membrane (Dentium Co, Seoul, Korea). The second was left uncovered (NC). The rabbits were killed after 3 and 5 weeks (3 rabbits/period). The results showed a high bone density and repair of the defect by new bone. The tomographic study revealed that the bone density of the defects treated with LAM at 3 weeks was equivalent to the density obtained with CM and higher density compared with NC (p <0.05). At 5 weeks, the bone density obtained with LAM was more than density CM and NC (p <0.05). The histomorphometric study showed no significant differences between LAM and CM at 3 and 5 weeks (p> 0.05). The results show that lyophilizated amniotic membrane provides bone density equal or higher to the collagen membrane.

El propósito de este estudio fue comparar la densidad ósea (DO) de defectos óseos tratados con membrana amniótica liofilizada (MAL) y membrana de colágeno (MC), a las 3 y 5 semanas. Se crearon dos defectos óseos, de 4 mm de diámetro y 6 mm de profundidad, en la diáfisis femoral distal izquierda de conejos Nueva Zelanda (n=12). Los animales fueron divididos aleatoriamente en 2 grupos. Uno de los defectos fue cubierto con membrana amniótica liofilizada (Banco de tejidos Rosa Chambergo/INSN-IPEN, Lima, Perú) o membrana de colágeno (Dentium Co, Seoul, Korea). El segundo se dejó sin cubrir (NC). Los conejos fueron sacrificados después de 3 y 5 semanas (3 conejos/periodo). Los resultados mostraron una alta DO y reparación del defecto por hueso neoformado. El estudio tomográfico reveló que la DO de los defectos tratados con MAL a las 3 semanas fue comparable a la densidad obtenida con MC y mayor comparado con la densidad de NC (p<0,05); mientras que a las 5 semanas fue mayor a la densidad de MC y NC (p<0,05). El estudio histomorfométrico no mostró diferencias significativas entre MAL y MC a las 3 y 5 semanas (p>0,05). Los resultados muestran que la membrana amniótica liofilizada brinda densidad ósea comparable o mayor que la membrana de colágeno.

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Estrus synchronization induces cows to gather in sexually active groups (SAGs) composed of females displaying mounting activity. Although this technique promotes the enhancement of sexual behavior, there are cows in estrus (CE) that delay estrus expression and also cows not displaying estrus (CNDE) even in the presence of a preovulatory follicle (PF). To elucidate the physiological mechanisms of the delay in the onset of estrus or absence of estrus behavior, an observational study was undertaken in 17 Bos indicus cows treated with exogenous progesterone (CIDR) to synchronize estrus and to monitor follicular growth and its steroidogenic activity. After SAGs formation, cows were ovariectomized at 24, 48, and 72 h post-CIDR. Among ovariectomized groups there were only 9 CE which: 1) showed differences in the onset of estrus; 2) displayed distinctive follicular growth patterns; and 3) at 72 h produced the highest intrafollicular estradiol concentration, and showed a linear trend to increase expression of P450scc and P450arom. Comparison of CE vs. CNDE showed that: 1) both groups had progesterone levels indicative of cyclic activity, and a PF which grew at a similar rate and size; 2) CE showed a stronger association between time and growth; and 3) CE produced more intrafollicular estradiol and progesterone, together with the expression of higher levels of P450arom. Results suggest that pending on the pattern of growth of the PF and its steroidogenic potential to produce estradiol, the onset and expression of estrus behavior may be delayed probably until the establishment of the appropriate conditions to ensure ovulation.

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The objective of this study was to determine if the technique of embryo transfer in cattle can be commercially feasible in a region situated in the humid tropics of Mexico. Twenty-six Bos taurus and twenty-six Bos indicus cows were estrous synchronized and superovulated to obtain a total of 80 embryos of both sub-species. Embryos were classified using stereoscopic microscopy based on established criteria. Nine dual-purpose farms situated in the tropics of Mexico were chosen to provide ten recipient cows each to transfer one embryo per cow. The females were transferred using a fixed-time protocol after verifying the presence of a corpus luteum on the seventh day after the end of hormonal treatment. Pregnancy diagnosis was carried out 28 days after embryo transfer by ultrasonography. Estimation of the cost was determined by calculating the expenses for preparation of the donor and embryo recovery, which were US $633 and US $589 for B. taurus and B. indicus, respectively. The cost of each embryo was determined considering the number of transferable embryos recovered, which was 3.8 on mean. The cost of each conception was calculated taking into account the percentage of pregnant animals (27% on mean), and the cost for preparing donor and recipient cows, for transferring embryo. The overall cost per gestation was US $1,447. Considering a 50:50 ratio of male to female born, the cost for a replacement heifer calf was US $2,894, which surpassed by far the commercial cost of a crossbred ready-to-bred heifer normally used as replacement (approximately US $900).

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Se realizan determinaciones de colilglicina (CG) en ayunas y después de la prueba de sobrecarga de grasa (PSG), en embarazadas normales y en enfermas con diagnóstico de colestasia intrahepática del embarazo (CIE). En el grupo de embarazo normal el valor promedio de CG en ayunas fue 0,193 ug/ml, y después de la referida prueba (PSG), de 0,206 ug/ml, siendo el valor máximo normal, 0,7 ug/ml. En los casos de CIE los cálculos de CG basales y después de la referida prueba permitió dividir a las pacientes de tres grupos, a saber: grupo A, con niveles basales y posprandiales elevados; grupo B, con niveles basales normales y posprandiales elevados, y grupo C, con diagnóstico de CIE y valores previos alterados, en el cual sucesivas ensayos en ayuas pueden ser normales, esto es, "negativos falsos", pero persistiendo alteradas las pruebas posprandiales. Se observan diferencias significativas al comparar los valores de CG del grupo C (p <0,001) con el grupo control y con el grupo A. El valor previo máximo de las pacientes con CIE, tanto nivel previo como posprandial fue sobre 50 ug/ml, esto es, más de 250 veces sobre el valor promedio del grupo control (en ayunas, 0,193 ug/ml y posprandial (PSG) 0,206 ug/ml)

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