[Estilo de vida, hábitos de higiene oral y autopercepción del estado anímico en estudiantes de Odontología de la Comunidad de Madrid durante la pandemia de la COVID-19: ¿pudo la pandemia tener algún efecto favorable?] / Lifestyle, oral hygiene habits and self-perception of mood in Dental students of the Community of Madrid during the COVID-19 pandemic: could the pandemic have any favorable effect?

OBJECTIVE: The COVID-19 pandemic and its control measures seem to have altered the vital dynamics of the population. It was justifiable, therefore, to try to specify the impact on lifestyle, oral hygiene and mood, in specific groups, such as dental university students in Madrid, who were accessible to us. METHODS: An anonymous and voluntary cross-sectional observational study was carried out in the first fortnight of December 2021, through an ad hoc online questionnaire, in dentistry students from the Autonomous Community of Madrid. Descriptive analysis of the variables was performed and the associations and significance were assessed using Chi-square and T-student. RESULTS: There were received seventy-two surveys. 82% were women and 18% men, with 23±3 years of mean age. 94% had good oral hygiene habits that improved with the pandemic. Their usual diet was varied and complete. Women consumed less meat (p=0.014) and more fruit (p=0.066), habits that they maintained, and men have improved with an increase in fruits (p<0.002), vegetables and legumes (p<0.003) in the pandemic. Tobacco (23,4%) and alcohol (54%) consumption decreased in confinement and increase in post-confinement. 36% increased their physical activity, initially low, especially in post-confinement. CONCLUSIONS: The students in the sample have good oral hygiene and eating habits, which they keep and even improve with the pandemic, including an increase in physical exercise in a significant fraction of the sample. The confinement affect the mood and social relationships, even altering the sleep of women, with an increase in night awakenings, especially in post-confinement.

OBJECTIVE: La pandemia de la COVID-19 y sus medidas de control parecen haber alterado la dinámica vital de la población. Fue justificable, por tanto, tratar de precisar el impacto sobre el estilo de vida, la higiene bucodental y el estado anímico, en grupos específicos, como estudiantes universitarios de Odontología de Madrid, que nos eran accesibles. METHODS: Se realizó un estudio observacional transversal anónimo y voluntario en la primera quincena de diciembre de 2021, mediante cuestionario online ad hoc, en estudiantes de Odontología de universidades de la Comunidad Autónoma de Madrid (CAM). Se realizó análisis descriptivo de las variables y se valoraron las asociaciones y significación con Chi-cuadrado y T-student. RESULTS: Se recibieron setenta y dos encuestas. El 82% eran mujeres y el 18% varones, con 23±3 años de media. El 94% tenía buenos hábitos de higiene oral, que mejoraron con la pandemia. Su dieta habitual era variada y completa. Las mujeres consumían menos carne (p=0,014) y más fruta (p=0,066), hábitos que mantenían, y mejoraron los varones con incremento en frutas (p<0,002), verduras y legumbres (p<0,003) en la pandemia. El consumo de tabaco (23,4%) y alcohol (54%) disminuyó en confinamiento y subió en postconfinamiento. Un 36% aumentó, especialmente en postconfinamiento, su actividad física, antes baja. CONCLUSIONS: Los estudiantes de la muestra tienen buenos hábitos de higiene oral y alimentación que mantienen e incluso mejoran con la pandemia, incluido un incremento del ejercicio físico en una fracción importante de la muestra. El confinamiento afecta al estado anímico y las relaciones sociales, llegando a alterar el sueño de las mujeres, con aumento de despertares nocturnos, sobre todo, en postconfinamiento.

Estilo de vida, hábitos de higiene oral y autopercepción del estado anímico en estudiantes de Odontología de la Comunidad de Madrid durante la pandemia de la COVID-19: ¿pudo la pandemia tener algún efecto favorable? / Lifestyle, oral hygiene habits and self-perception of mood in Dental students of the Community of Madrid during the COVID-19 pandemic: could the pandemic have any favorable effect?

Fundamentos: La pandemia de la COVID-19 y sus medidas de control parecen haber alterado la dinámica vital de la población. Fue justificable, por tanto, tratar de precisar el impacto sobre el estilo de vida, la higiene bucodental y el estado anímico, en grupos específicos, como estudiantes universitarios de Odontología de Madrid, que nos eran accesibles.Métodos: Se realizó un estudio observacional transversal anónimo y voluntario en la primera quincena de diciembre de 2021, mediante cuestionario online ad hoc, en estudiantes de Odontología de universidades de la Comunidad Autónoma de Madrid (CAM). Se realizó análisis descriptivo de las variables y se valoraron las asociaciones y significación con Chi-cuadrado y T-student. Resultados: Se recibieron setenta y dos encuestas. El 82% eran mujeres y el 18% varones, con 23±3 años de media. El 94% tenía buenos hábitos de higiene oral, que mejoraron con la pandemia. Su dieta habitual era variada y completa. Las mujeres consumían menos carne (p=0,014) y más fruta (p=0,066), hábitos que mantenían, y mejoraron los varones con incremento en frutas (p<0,002), verduras y legumbres (p<0,003) en la pandemia. El consumo de tabaco (23,4%) y alcohol (54%) disminuyó en confinamiento y subió en postconfinamiento. Un 36% aumentó, especialmente en postconfinamiento, su actividad física, antes baja. Conclusiones: Los estudiantes de la muestra tienen buenos hábitos de higiene oral y alimentación que mantienen e incluso mejoran con la pandemia, incluido un incremento del ejercicio físico en una fracción importante de la muestra. El confinamiento afecta al estado anímico y las relaciones sociales, llegando a alterar el sueño de las mujeres, con aumento de despertares nocturnos, sobre todo, en postconfinamiento.(AU)

Background: The COVID-19 pandemic and its control measures seem to have altered the vital dynamics of the population. It was justifiable, therefore, to try to specify the impact on lifestyle, oral hygiene and mood, in specific groups, such as dental university students in Madrid, who were accessible to us. Methods: An anonymous and voluntary cross-sectional observational study was carried out in the first fortnight of December 2021, through an ad hoc online questionnaire, in dentistry students from the Autonomous Community of Madrid. Descriptive analysis of the variables was performed and the associations and significance were assessed using Chi-square and T-student. Results: There were received seventy-two surveys. 82% were women and 18% men, with 23±3 years of mean age. 94% had good oral hygiene habits that improved with the pandemic. Their usual diet was varied and complete. Women consumed less meat (p=0.014) and more fruit (p=0.066), habits that they maintained, and men have improved with an increase in fruits (p<0.002), vegetables and legumes (p<0.003) in the pandemic. Tobacco (23,4%) and alcohol (54%) consumption decreased in confinement and increase in post-confinement. 36% increased their physical activity, initially low, especially in post-confinement. Conclusions: The students in the sample have good oral hygiene and eating habits, which they keep and even improve with the pandemic, including an increase in physical exercise in a significant fraction of the sample. The confinement affect the mood and social relationships, even altering the sleep of women, with an increase in night awakenings, especially in post-confinement.(AU)

The pattern of lip cancer occurrence over the 1990-2011 period in public hospitals in Madrid, Spain.

BACKGROUND: Some regions of Spain along with Canada and Australia have the highest rates of lip cancer in the world. The objective of this study was to examine the trends in the pattern of occurrence of lip cancer in Madrid, Spain. METHODS: Data were extracted from the Central Tumour Registry of Madrid, between 1990 and 2011. Variables examined were age, sex, topographic and morphological location and tumour histology. Two consecutive periods, 1990-2001 and 2002-2011, were studied by descriptive and analytical methods, and the data from the two periods were statistically compared. RESULTS: A total of 881 cases were registered during the period 1990-2011. Comparing data between the two periods (1990-2001 and 2002-2011), subtle variations in age, histology and location were noted. Gender ratios remained constant. The mean age increased from 66.3 to 69.7 years (P < 0.05). In the second period, the histological distribution showed an increase in frequency of basal cell carcinoma, from 2.1% to 4.7%, while the frequency of squamous cell carcinomas remained constant. Basal cell carcinoma no longer predominantly occurred in women, decreasing from 80% to 21.1% (P < 0.001). The distribution by gender of squamous cell carcinoma had become more equal due an increase in its frequency in women (P < 0.001). Frequency of tumours on lip mucosa and commissure had increased between the two periods (P < 0.004). CONCLUSIONS: The pattern of lip cancer reported to Public Hospitals of Madrid is changing: declining rates are noted since 2001-02. However, it is necessary to monitor these data to confirm the observed trends in future years.

Maxillary growth in a congenital cleft palate canine model for surgical research.

We have recently presented the Old Spanish Pointer dog, with a 15-20% spontaneous congenital cleft palate rate, as a unique experimental model of this disease. This study aimed to describe the cleft palate of these dogs for surgical research purposes and to determine whether congenital cleft palate influences maxillofacial growth. Seven newborn Old Spanish Pointer dogs of both sexes, comprising a cleft palate group (n = 4) and a normal palate group (n = 3), were fed using the same technique. Macroscopic photographs and plaster casts from the palate, lateral radiographs and computer tomograms of the skull were taken sequentially over 41 weeks, starting at week 5. The cleft morphology, the size and the tissue characteristics in these dogs resembled the human cleft better than current available animal models. During growth, the cleft width varies. Most of the transverse and longitudinal measures of the palate were statistically lower in the cleft palate group. The cleft palate group showed hypoplasia of the naso-maxillary complex. This model of congenital cleft palate seems suitable for surgical research purposes. A reduced maxillofacial pre- and post-natal development is associated to the congenital cleft palate in the Old Spanish Pointer dog.

Immunolocalization of Smad-4 in developing molar roots of alendronate-treated rats.

INTRODUCTION: During root formation, Smad-4 plays a key role during the epithelial-mesenchymal interactions and the Hertwig's epithelial root sheath (HERS) apical proliferation. The root formation and eruption of rat molars is impeded by alendronate treatment due to the inhibition of bone resortion by this drug. The present study aimed to examine the structures affected in the developing root and immunodetect the presence of Smad-4 in rats treated with alendronate. METHODS: Newborn Wistar rats were daily injected 2.5 mg/kg alendronate (ALN) during 9, 12 and 30 days. The controls (CON) were injected with saline. The maxillae were fixed and embedded in paraffin or Spurr resin. Paraffin sections were incubated in Smad-4 antibody that was labelled with DAB. The ultrathin sections were examined in a transmission electron microscope. RESULTS: In ALN, a short portion of root dentine was formed; the epithelial diaphragm (ED) and the dental follicle (DF) were disorganized by the contact of bone trabeculae. The (CON) molar roots developed normally. Smad-4 labelling was detected in the cytoplasm of fibroblasts and cementoblasts adjacent to the cementum in CON; in ALN group, few ED cells presented weak immunolabelling. Ultrastructurally, the ED and DF appeared disrupted due to the presence of thin bone trabeculae between its cells. It resulted in the lack of apical proliferation of HERS and, consequently, arrest of root formation. CONCLUSION: The immunodetection of Smad-4 in the DF cells of ALN specimens indicates that the signalling for the differentiation of these cells into cementum-forming fibroblasts and cementoblasts occurs, despite the impairment of root elongation.

Injection and adhesion palatoplasty: a preliminary study in a canine model.

BACKGROUND: Raising mucoperiosteal flaps in traditional palatoplasty impairs mid-facial growth. Hyaluronic acid-based hydrogels have been successfully tested for minimally invasive craniofacial bone generation in vivo as carriers of bone morphogenetic protein-2 (BMP-2). We aimed to develop a novel flapless technique for cleft palate repair by injecting a BMP-2 containing hydrogel. MATERIAL AND METHODS: Dog pups with congenital cleft palate were either non-treated (n=4) or treated with two-flap palatoplasty (n=6) or with the proposed injection/adhesion technique (n=5). The experimental approach was to inject a hyaluronic acid-based hydrogel containing hydroxyapatite and BMP-2 subperiosteally at the cleft palate margins of pups aged six weeks. At week ten, a thin strip of the medial edge mucosa was removed and the margins were closed directly. Occlusal photographs and computed tomography (CT) scans were obtained up to week 20. RESULTS: Four weeks after the gel injection the cleft palate margins had reached the midline and engineered bone had enlarged the palatal bones. Removal of the medial edge mucosa and suturing allowed complete closure of the cleft. Compared to traditional palatoplasty, the injection/adhesion technique was easier, and the post-surgical recovery was faster. CT on week 20 revealed some overlapping or "bending" of palatal shelves in the two-flap repair group, which was not observed in the experimental nor control groups. CONCLUSION: A minimally invasive technique for cleft palate repair upon injectable scaffolds in a dog model of congenital cleft palate is feasible. Results suggest better growth of palatal bones. This represents an attractive clinical alternative to traditional palatoplasty for cleft palate patients.

A new technique for feeding dogs with a congenital cleft palate for surgical research.

In humans, cleft palate (CP) is one of the most common malformations. Although surgeons use palatoplasty to close CP defects in children, its consequences for subsequent facial growth have prompted investigations into other novel surgical alternatives. The animal models of CP used to evaluate new surgical treatments are frequently obtained by creating surgically induced clefts in adult dogs. This procedure has been ethically criticized due to its severity and questionable value as an animal model for human CP. Dogs born with a congenital CP would be much better for this purpose, provided they developed CP at a sufficient rate and could be fed. Up until now, feeding these pups carried the risk of aspiration pneumonia, while impeding normal suckling and chewing, and thus compromising orofacial growth. We developed a technique for feeding dog pups with CP from birth to the time of surgery using two old Spanish pointer dog pups bearing a complete CP. This dog strain develops CP in 15-20% of the offspring spontaneously. Custom-made feeding teats and palatal prostheses adapted to the pups' palates were made from thermoplastic plates. This feeding technique allowed lactation, eating and drinking in the pups with CP, with only sporadic rhinitis. To determine whether the use of this palatal prosthesis interferes with palatal growth, the palates of three littermate German shorthaired pointer pups without CP, either wearing or not wearing (controls) the prosthesis, were measured. The results showed that the permanent use of this prosthesis does not impede palatal growth in the pups.