Guía clínica para el tratamiento de lesiones endoperiodontales sin compromiso radicular en pacientes periodontales / Clinical practice guide for the treatment of endoperiodontal lesions without root compromise in periodontal patients

La comunicación patológica entre la pulpa y el pe-riodonto se denomina lesión endoperiodontal. Puede presentarse de forma aguda o crónica, y su mani-festación más común es la presencia de un absceso acompañado de dolor. Es importante realizar una detenida evaluación clínica y radiográfica para esta-blecer un correcto diagnóstico y plan de tratamiento. Por este motivo, el objetivo de esta guía es presentar un protocolo consensuado entre las Cátedras de Pe-riodoncia y Endodoncia de la Facultad de Odontología de la Universidad de Buenos Aires (FOUBA), para su tratamiento (AU)

The pathological communication between the pulp and the periodontium is called Endoperiodontal Lesion. It can be presented in an acutely or chronically form and its most common manifestation is the presence of an abscess accompanied by pain. It is important to carry out a careful clinical and radiographic evaluation to establish a correct diagnosis, prognosis, and treatment plan. For this reason, the objective of this guide is to present a consensus protocol between Periodontics and Endodontics Departments of the Faculty of Dentistry of the University of Buenos Aires (FOUBA) for their treatment (AU)

Root perforations: a review of diagnosis, prognosis and materials

Abstract: Root perforation results in the communication between root canal walls and periodontal space (external tooth surface). It is commonly caused by an operative procedural accident or pathological alteration (such as extensive dental caries, and external or internal inflammatory root resorption). Different factors may predispose to this communication, such as the presence of pulp stones, calcification, resorptions, tooth malposition (unusual inclination in the arch, tipping or rotation), an extra-coronal restoration or intracanal posts. The diagnosis of dental pulp and/or periapical tissue previous to root perforation is an important predictor of prognosis (including such issues as clinically healthy pulp, inflamed or infected pulp, primary or secondary infection, and presence or absence of intracanal post). Clinical and imaging exams are necessary to identify root perforation. Cone-beam computed tomography constitutes an important resource for the diagnosis and prognosis of this clinical condition. Clinical factors influencing the prognosis and healing of root perforations include its treatment timeline, extent and location. A small root perforation, sealed immediately and apical to the crest bone and epithelial attachment, presents with a better prognosis. The three most widely recommended materials to seal root perforations have been calcium hydroxide, mineral trioxide aggregate and calcium silicate cements. This review aimed to discuss contemporary therapeutic alternatives to treat root canal perforations. Accordingly, the essential aspects for repairing this deleterious tissue injury will be addressed, including its diagnosis, prognosis, and a discussion about the materials actually suggested to seal root canal perforation.

Influencia de tomografías de haz cónico en el plan de tratamiento de endodoncia en casos de elevado grado de dificultad / The influence of cone-beam computed tomographies on endodontic treatment planning in highly difficult cases

Introducción: el diagnóstico en endodoncia incorporó los estudios de tomografías de haz cónico (CBCT). Esnecesario entender el alcance y la utilidad de estos para saber cuándo solicitarlos. Objetivos: el objetivo de este estudio fue determinar la indicación de CBCT previa al tratamiento endodóntico y su relación con el nivel de dificultad del caso atratar. Métodos: se seleccionaron al azar 15 casos clínicos de alta dificultad derivados a tratamiento de endodoncia.Se realizó diagnóstico clínico y radiográfico. Se estimaron los recursos necesarios para el tratamiento con unformulario diseñado para ello. Se solicitó un estudio de CBCT. Una vez obtenido el estudio, el mismoprofesional que realizó el diagnóstico clínico navegó el software de visualización y llenó nuevamente el formulario. Fueron comparados los formularios previos y posteriores a las CBCT. Se establecieron las diferencias encontradas entre ellos. Resultados: todos los casos analizados tuvieron diferencias en la comparación entre los formularios. Conclusiones: el uso de CBCT en los casos de elevada dificultad permite un diseño de plan de tratamiento más preciso.

Introduction: the endodontic diagnosis includes the study of cone beam tomography (CBCT). It is necessary to understand the scope and usefulness of CBCTto know when to request it.Objectives: the aim of this study was to determine the requirement of CBCT before endodontic treatment and its connection with the level of difficulty that the case presents. Methods: 15 endodontic cases of high difficulty were taken randomly. Clinical and radiographic diagnosis was made. The necessary resourcesfor the treatment were estimated according to aspecially designed form. A CBCT study was request. Once the study was obtain, the same professionalwho performed the clinical diagnosis browsed the software to read CBCT results and filled a new form.Both CBCT forms need to be compared to establish differences between them. Results: all the cases analysed were compare, andshowed differences between the two forms. Conclusion: the use of CBCT in high difficult cases provides a more accurate design of the treatment plans.

Enfermedades pulpares y periapicales en estructuras dentales permanentes en pacientes con edades de seis-catorce años / Pulp and periapical diseases in permanent dental structures of patients aged six to fourteen years

Introducción: cuando las estructuras dentales permanentes tienen pulpas jóvenes e inmaduras, son más grandes y las paredes del canal radicular muy delgadas. Si estas son afectadas por alguna enfermedad pulpar o periapical, la integridad de la pulpa se ve dañada y consecuentemente el desarrollo radicular. Objetivo: identificar las enfermedades pulpares y periapicales en estructuras dentales permanentes y su grado de desarrollo según la clasificación de Patterson, de pacientes con edades de seis a catorce años. Métodos: estudio observacional descriptivo y transversal. De 357 pequeños que acudieron a la Unidad Universitaria de Inserción Social de la Universidad Autónoma de Yucatán, México, 2013, por afectaciones pulpar o periapical, 56 infantes presentaron estas, en estructuras dentales inmaduras permanentes. Los criterios de inclusión fueron: edad, estructura dentaria, enfermedades pulpares y periapicales, clasificación de Patterson para observar radiográficamente el grado de desarrollo radicular. Se proporcionó a los padres una carta de consentimiento informado, realizándoles un cuestionario con datos demográficos del niño. Al niño, se le preguntó su historia de dolor, se realizaron pruebas, exámenes clínicos y toma radiográfica. Con pruebas Ji-cuadrada se comparó la proporción de pacientes según: 1) estructura dentaria; 2) edad; 3) clasificación de Patterson; 4) enfermedad pulpar y periapical. Resultados: el 57 por ciento fueron niñas y 43 por ciento niños. El 15,69 por ciento de los infantes tuvo enfermedad pulpar y/o periapical en estructuras dentales permanentes presentándose con mayor frecuencia en el estadio 1, 2 y 3 de Patterson. Difirió significativamente (X2= 22,6429; p= 0,0004; g.l.= 5) la estructura dentaria afectada. La proporción de pacientes con enfermedad pulpar o periapical según edad difirió significativamente (X2= 30,75; p< 0,0001; g.l.= 6). La proporción de pacientes con alguna estructura dentaria permanente afectada según la clasificación de Patterson, difirió significativamente (X2= 7,75; p= 0,0208; g.l.= 2). Hubo diferencias estadísticas entre los tipos de enfermedades pulpares (X 2= 7,2; p= 0,0273; g.l.= 2), no difirió significativamente entre los tipos de enfermedades periapicales (X2= 1,4615; p=0,4815; g.l.= 2). Conclusiones: desde muy temprana edad los niños y niñas, están presentando mayor cantidad de enfermedades pulpares que periapicales en estructuras dentales permanentes aún sin terminar su desarrollo radicular, lo que pone en riesgo la conservación de sus dientes en la edad adulta, y afecta severamente el sistema estomatognático con probabilidad de padecer maloclusiones a temprana edad(AU)

Introduction: when permanent dental structures have young, immature pulps, they are bigger and their root canal walls are very thin. If they are affected by some pulp or periapical disease, damage is caused to pulp integrity and consequently to root development as well. Objective: identify pulp and periapical diseases in permanent dental structures of patients aged six to fourteen years, and their degree of development according to Patterson's classification. Methods: a cross-sectional observational descriptive study was conducted. Of the 357 children attending the Social Service University Unit at the Autonomous University of Yucatán, Mexico, in the year 2013, for pulp or periapical diseases, 56 presented them in immature permanent dental structures. The following inclusion criteria were applied: age, dental structure, pulp and periapical diseases, and Patterson's classification, to radiographically observe the degree of root development. Parents provided their informed consent in writing, and answered a questionnaire with personal details of the child. Children were asked about the antecedents of their pain, and underwent tests and clinical and radiographic examination. Chi-square tests were used to sort out the patients according to: 1) dental structure, 2) age, 3) Patterson's classification, 4) pulp and periapical disease. Results: 57 percent of the sample were girls and 43 percent were boys. 15.69 percent had pulp and/or periapical disease in permanent dental structures, with a higher prevalence of Patterson's stages 1, 2 and 3. The dental structure affected varied significantly (X2= 22.6429; p= 0.0004; g.l.= 5). The proportion of patients with pulp or periapical disease varied significantly with age (X2= 30.75; p< 0.0001; g.l.= 6). The proportion of patients with some permanent dental structure affected varied significantly according to Patterson's classification (X2= 7.75; p= 0.0208; g.l.= 2). Significant statistical differences were found between the types of pulp diseases (X2= 7.2; p= 0.0273; g.l.= 2), not between the types of periapical diseases (X2= 1.4615; p=0.4815; g.l.= 2). Conclusions: incidence of pulp diseases is higher than that of periapical diseases in very young children. These affect permanent dental structures with incomplete root development, jeopardizing tooth preservation in adult age and severely affecting the stomatognathic system with a potential for causing malocclusion at an early age(AU)

Investigations of the prevalence and virulence of Candida albicans in periodontal and endodontic lesions in diabetic and normoglycemic patients

Abstract Pulpal and periodontal tissues have similar microbiota that allows cross-contamination between the pulp and periodontal tissues. Objective The aim of this study was to investigate the prevalence of isolated Candida albicans from periodontal endodontic lesions in diabetic and normoglycemic patients, and the fungi's virulence in different atmospheric conditions. Material and Methods A case-control study was conducted on 15 patients with type 2 diabetes mellitus (G1) and 15 non-diabetics (G2) with periodontal endodontic lesions. Samples of root canals and periodontal pockets were plated on CHROMagar for later identification by polymerase chain reaction (PCR) and virulence test. Results C. albicans was identified in 79.2% and 20.8% of the 60 samples collected from diabetic and normoglycemic patients, respectively. Of the 30 samples collected from periodontal pockets, 13 showed a positive culture for C. albicans, with 77% belonging to G1 and 23% to G2. Of the 11 positive samples from root canals, 82% were from G1 and 18% from G2. Production of proteinase presented a precipitation zone Pz<0.63 of 100% in G1 and 72% in G2, in redox and negative (Pz=1), under anaerobic conditions in both groups. Hydrophobicity of the strains from G1 indicated 16.4% with low, 19.3% with moderate, and 64.3% with high hydrophobicity in redox. In G2, 42.2% had low, 39.8% had moderate, 18% had high hydrophobicity in redox. In anaerobic conditions, G1 showed 15.2% with low, 12.8% with moderate, and 72% with high hydrophobicity; in G2, 33.6% had low, 28.8% had moderate, and 37.6% had high hydrophobicity. There was statistical difference in the number of positive cultures between G1 and G2 (p<0.05) with predominance in G1. There was statistical difference for all virulence factors, except hemolysis (p=0.001). Conclusions Candida albicans was isolated more frequently and had higher virulence in diabetic patients.

radiographie numerique en endodontie

Radiography is essential for both endodontic diagnosis and treatment. Although conventional films are considered as the gold standard in dental radiology, advances in information and imaging technologies allowed the introduction of digital radiology in numerous dental offices. These devices have significant advantages especially for endodontics

Resinifying therapy in endodontics. A clinical and radiological evaluation.

Twenty one posterior teeth were selected at random from patients visiting outpatient Department of Punjab Govt. Dental College and Hospital, Amritsar. Out of twenty one treated teeth, seventeen had definite radiolucent area at periapex, three were non vital with no periapical radiolucent area and one tooth was vital with pulp exposure. All the teeth were treated with resinifying therapy. The treated teeth were examined after 3 months, 6 months and 9 months as regards pain on percussion, swelling and/or sinus formation. The teeth were radiographed on each follow up and the decrease/increase in radiolucency at the periapex were noted. Clinically all the treated teeth responded normal except for one which showed sinus formation after three months period of observation. This tooth was, however, retreated. Radiologically, the success rate after 9 months of observations was 84.1%. However, mean decrease in radiolucency was 2.1 mm after 3 months, 4.0 after 6 months and 5.8 after 9 months. Resinifying therapy is strongly advocated for posterior teeth with large periapical areas and also for vital teeth with pulp exposure where root canal therapy can be completed in single visit. Furthermore, the mechanism, indications and contraindication of this therapy are also discussed.