Comparison Between Radiographs, White and Fluorescent Images in the Diagnosis and Treatment Decisions for Occlusal Caries: An Ex Vivo Study

ABSTRACT Objective: To compare the agreement of images in white light (WL), fluorescence (FL), and digital radiographs (DR), on the diagnosis and treatment decisions for occlusal caries lesions against a micro-CT gold standard. Material and Methods: Ten extracted third molars, with enamel and/or dentin caries (ICDAS 2-4), were included. Occlusal surface images were acquired with an intraoral camera (SoproLife®) in WL and FL modes. DR was obtained using an intraoral X-ray and a semi-direct digital system. A total of 780 images were needed, organized in a template, to be later examined by twenty-six dentists invited to compose the study. The Generalized Estimation Equations model was used to compare the proportions of the correct answers between the three methods and the gold standard. When significant, Bonferroni post-hoc test was used to identify differences (α=5%). Results: Most of the examiners were specialists (76.9%) with 14.5 years of experience. All diagnostic methods were similar and showed low agreement (DR 12.7%, WL 16.5%, and FL 16.5%) compared with gold standard caries diagnostic scores. Regarding treatment decisions, mean agreement for all diagnostic methods was higher (43.2%; p<0.001), and among all methods, WL (48.1%) and FL (51.2%) modes performed better than DR (30.4%, p<0.001). Conclusion: SoproLife® images could help clinicians to propose rational, minimally invasive treatments for occlusal caries lesions.

Validación del instrumento para determinación de prevalencia de celulitis facial y su relación con la caries dental en pacientes de 5 a 9 años de edad / Validation of the instrument for the determination of prevalence of facial cellulite and its relationship with cariesdental in patients from 5 to 9 years of age

La celulitis facial odontogénica es comúnmente observada en las salas de emergencia hospitalarias en los pacientes pediátricos debido a la caries dental. Objetivo: Validar el instrumento de prevalencia de celulitis facial y su relación con la caries dental en pacientes de 5 a 9 años de edad en el Hospital General IESS Milagro. Materiales y métodos: Enfoque mixto cuantitativa y cualitativa, tipo de investigación de campo, corte transversal, descriptivo, no experimental, se realizó un plan piloto de 15 pacientes pediátricos, un instrumento cuantitativo (Ficha de recolección de datos) contó con 9 expertos para un juicio de expertos y en el instrumento cualitativo (Entrevista) contó con 6 expertos para la validación del instrumento en total son de 15 profesionales en salud, calificando Validez, Pertinencia y Coherencia. Resultados: El instrumento cuantitativo tiene una puntuación de 80,85 de confiablidad y el instrumento cualitativo tiene una puntuación de 87,11 de confiablidad. En el instrumento cuantitativo se determinó la prevalencia de celulitis facial de niños de 5 a 9 años de edad, género masculino (80%), rango de 7 a 8 años (53,3%), cita por primera vez (60%), antecedente referencial caries dental (93,3%), diagnóstico CIES10 fue el L032 celulitis de la cara (93,3%), región afectada en la zona submandibular (73,3%), prevalencia de caries dental, molares deciduos (93,3%), no registran antecedentes de buena salud (73,3%), tratamientos odontológicos de prevención al año ninguna (80%), causa frecuente en la aparición de celulitis facial, la necrosis pulpar K041. Conclusión: La validación del instrumento tuvo un grado de confiabilidad muy buena y su cifra de alfa de Cronbach alto, la misma que da seguridad y confianza, gracias a la calificación de los jueces que revisaron cada detalle(AU)

Odontogenic facial cellulite is commonly observed in hospital emergency rooms in pediatric patients due to the dental caries. Objective: to validate the facial cellulite prevalence instrument and its relationship with dental caries in patients from 5 to 9 years of age in the IESS Miracle General Hospital. Materials and methods: mixed approach quantitative and qualitative, type of field research, cross section, descriptive, non-experimental, a pilot plan of 15 patients was carried out ediatric patients, a quantitative instrument (data collection form) counted with 9 experts for an expert judgment and in the qualitative instrument (Interview) had 6 experts for the validation of the instrument in total they are of 15 health professionals, qualifying Validity, Relevance and Coherence. Results: the quantitative instrument has a score of 80.85 of reliability and the qualitative instrument has a score of 87.11 out of reliability. In the quantitative instrument, the prevalence of facial cellulite in children 5 to 9 years of age, male gender (80%), range 7 to 8 years old (53.3%), appointment for the first time (60%), referential history dental caries (93.3%), CIES10 diagnosis was L032 facial cellulite (93.3%), affected region in the submandibular area (73.3%), prevalence of dental caries, deciduous molars (93.3%), do not record a history of good health (73.3%), preventive dental treatments per year none (80%), frequent cause in the appearance of facial cellulitis, pulpal necrosis K041. Conclusion: the validation of the instrument had a very high degree of reliability. good and its high Cronbach's alpha figure, the same one that gives security and confidence, thanks to the rating of the judges who reviewed every detail(AU)

Prevalence of impacted mandibular third molars and its association with distal caries in mandibular second molars using cone beam computed tomography / Prevalencia de terceros molares mandibulares impactados y su asociación con caries distales en segundos molares mandibulares mediante tomografía computarizada de haz cónico

This study evaluated the prevalence and eruption's pattern of impacted mandibular third molars (IMTM) and the influence of their eruption status on the distal caries of mandibular second molars (MSM) using cone-beam computed tomography (CBCT). Material and methods: CBCT images taken for different purposes in private dental practices were analyzed retrospectively. Radiographic assessment included: prevalence of IMTM, degree of angulation, level of impaction and type of IMTM. Furthermore, the distance between the cement-enamel junctions (CEJ) of second and third molars and the occurrence of caries lesion on the distal surface of MSM was also evaluated. Data were analyzed by chi square test and logistic regression was used to find the association between distal caries of MSM and eruption status of IMTM. Results: Three hundred and eight CBCTs were screened, the prevalence of IMTM was 36.88% and their angulation degree were mostly less than 90º (mesioangular). Amongst those with impaction, 58 subjects (43%) had distal caries on MSM, 29.6% in females and 30.4% in the age group 19-27 years. Caries on the distal side of MSM were significantly associated with age, level and type of impaction, angulation degree and CEJ distances (p<0.05). Conclusions: The prevalence of IMTM is high (36.88%) and there are significant relationships between angulation degree, level and type of impaction, and CEJ distances with caries on the distal side of MSM.

Introducción: Este estudio evaluó la prevalencia y el patrón de erupción de terceros molares mandibulares impactados (TMMI), y la influencia de su estado de erupción en la caries distal de los segundos molares mandibulares (SMM) mediante tomografía computarizada de haz cónico (TCHC). Material y métodos: se analizaron retrospectivamente las imágenes de TCHC tomadas para diferentes fines en prácticas dentales privadas. La evaluación radiográfica incluyó: prevalencia de TMMI, grado de angulación, nivel de impacto y tipo de TMMI. Además, también se evaluó la distancia entre la unión amelocementaria (UAC) de los segundos y terceros molares y la aparición de lesión de caries en la superficie distal de SMM. Los datos se analizaron mediante la prueba de chi cuadrado y se usó la regresión logística para evaluar asociaciones entre la caries distal de SMM y el estado de erupción de TMMI. Resultados: Se examinaron 308 TCHC, la prevalencia de TMMI fue de 36.88% y su grado de angulación fue mayoritariamente menor a 90º (mesioangular). Entre aquellos con impacto, 58 sujetos (43%) tenían caries distales en los SMM, 29.6% eran mujeres y 30.4% pertenecieron al grupo de edad de 19-27 años. Las caries en el lado distal de MSM se asociaron significativamente con la edad, el nivel y el tipo de impactación, el grado de angulación y las distancias UAC (p<0.05). Conclusiones: la prevalencia de TMMI es alta (36.88%) y existen relaciones significativas entre el grado de angulación, el nivel y el tipo de impacto, y las distancias UAC con presencia de caries en el lado distal de los SMM.

Associação entre o tempo cirúrgico e infecção pós-operatória na exodontia de terceiros molares / Association between surgical time and postoperative infection in third molar surgery

Introdução: Os quadros de infecção constituem a principal complicação associada a exodontia de terceiros molares. Apesar da baixa incidência, em torno de 10%, tendo em vista o grande número de procedimentos realizados em todo o mundo, o número absoluto de casos de infecção também tende a ser elevado. Apesar disso, o uso rotineiro de antibiótico profilático tem sido questionado em função da sua eficácia, efeitos colaterais, custo e principalmente pela crescente emergência de microorganismos resistentes. Na tentativa de racionalizar o uso de antibióticos, diversos trabalhos tem procurado estimar o risco de infecção baseado em aspectos relacionados ao paciente, ao procedimento cirúrgico e às características anatômicas e radiográficos do dente porém, tendo em vista o grande número de variáveis envolvidas e à forte interação entre elas, não se conseguiu, ainda, um modelo capaz de ponderar de forma confiável e reprodutível todas essas variáveis. Supondo que o tempo cirúrgico possa fazer essa ponderação, o objetivo deste estudo foi tentar correlacionar o tempo cirúrgico

e o índice de infecção pós-operatória na exodontia de terceiros molares. Material e métodos: Foram realizadas 349 cirurgias em 197 pacientes saudáveis com indicação de exodontia de ao menos um terceiro molar. Todos os pacientes foram operados com a mesma técnica cirúrgica e dose única de antibiótico pré-operatório. A variável primária do estudo foi o tempo cirúrgico e o desfecho a presença ou ausência de infecção de acordo com os parâmetros clínicos definidos pelo "Center for Disease Control" (CDC). Também foram avaliados a interação entre idade, gênero, posição do dente e experiência do cirurgião com o tempo cirúrgico. Resultados: A incidência de infecção foi de 4,6% e houve uma clara associação entre tempo cirúrgico e infecção, inclusive na análise multivariada (OR=1,017, IC95% =[ 1,001; 1,034 ], p=0,043), sendo que todos os casos infectados tiveram tempo cirúrgico superior a 30 minutos. Conclusões: O tempo cirúrgico pode ser usado como indicador de risco para infecção na exodontia de terceiros molares podendo definir a conduta de antibioticoterapia pós-operatória.

Introduction: Postoperative infection is the most common complication associated with third molar extraction. Despite the low incidence, around 10%, considering the large number of surgerys performed around the world, the absolute number of postoperative infections also tends to be high. Nevertheless, the routine use of prophylactic antibiotics is controversy, due to its side effects, cost, and mainly by the increasing emergence of resistant microorganisms. In attempt to rationalize antibiotics prescription, several studies have tried to estimate the postoperative infection risk based on patient related aspects, surgical procedure and tooth anatomical and radiographic characteristics but with little succsess, because of the large number of variables involved and their strong interaction. The aim of this study is to correlate the surgical procedure time and the postoperative infection rate in third molar surgery. Methods: We performed 349 surgeries in 197 healthy

patients with at least one third molar to be removed. All patients were operated with the same surgical technique and single-dose preoperative antibiotic. The primary variable was the surgical time and the outcome, the presence or absence of infection according to the clinical parameters defined by the "Center for Disease Control" (CDC). We also assessed patients age, gender, tooth posítion and surgeon experience. Results: The incidence of infection was 4.6% and there was a clear association between operative time and infection, even in the multivariate analysis (OR = 1.017, 95% CI = [1.001, 1.034], p = 0.043), and all infected cases had surgeries lasting more than 30 minutes. Conclusions: Operating time can be used as an risk indicator for infection in third molar surgery and thus can define the postoperative antibiotic therapy.

Detección de microorganismos anaerobios en pacientes con pericoronaritis y sensibilidad a los antimicrobianos / Anaerobic microorganisms detection in patients with pericoronaritis and antimicrobial susceptibility

El propósito de este estudio fue la identificación de microorganismos anaerobios más frecuentemente encontrados en pericoronaritis y realizar pruebas de sensibilidad a los antimicrobianos. Se estudiaron los sacos pericoronarios del tercer molar en 20 pacientes. De las muestras recogidas en los 20 pacientes que presentaron pericoronaritis, solo en 7 (35%) hubo crecimiento de microorganismos anaerobios estrictos mientras que en los 13 restantes (65%) no se detectaron estos. En cuanto a las 12 cepas aisladas del saco pericoronario de los 7 pacientes, el microorganismo más frecuentemente encontrado fue Bifidobacterium spp en 5 casos (42%), Bifidobacterium adolescentis en 2 casos (17%), Veillonella spp en dos casos también (17%), Prevotella melaninogenica en 1 caso (8%), 1 caso Prevotella loescheii (8%) y en 1 caso a Prevotella oralis (8%). De los resultados obtenidos las bacterias anaerobias estrictas detectadas a partir de muestras de sacos pericoronarios fueron: Bifidobacterium spp., B. adolescentis, Veillonella spp, P. loeschii, P. melaninogenica y P. oralis.