Objectives To assess the prognosis for early‐stage oral squamous cell carcinoma according to tumor depth of invasion (DOI). Methods This study was logged in the PROSPERO database under protocol # CRD42017059976. The search was conducted in six electronic databases up to May 2019. Fixed‐effects meta‐analysis was performed for the calculation of the odds ratio (OR) and respective 95% CI. Primary outcomes were lymph node metastasis, recurrence, and survival. Heterogeneity was calculated by the I2 test. The certainty of evidence was assessed by Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach. Results Twenty‐seven studies were included (19 in the meta‐analysis) with 2,404 patients with a mean of 60 years of age. High tumor DOI is associated with a greater chance of presenting lymph node metastasis, regardless of the cutoff point for DOI (13 meta‐analysis; OR 1.69–53.08), recurrence (five meta‐analysis; OR 1.22–3.83), and lower chance of survival (1 meta‐analysis; OR 0.49). The certainty of evidence varied from very low to low. Conclusions Tumor DOI is a good prognosticator for early‐stage OSCC. The findings of the current meta‐analysis highlight the clinical relevance of DOI and corroborate its incorporation for staging OSCC.

a b s t r a c tAdenomatoid odontogenic tumor (AOT) is a rare odontogenic tumor with limited growth and usually associated with an unerupted permanent tooth. It is a benign lesion, with a low rate of recurrence after surgical treatment. This is a case report of an 11-year-old female with an asymptomatic tumor growth on the maxilla and palatal displacement of the lateral incisor. A unilocular lesion surrounding the coronal impacted right upper canine and the displacement of premolars were observed radiographically. After incisional biopsy, the tumor was diagnosed as AOT. The enucleation of the lesion and the removal of the impacted canine was performed. Four months later, the patient had not shown any signs of recurrence and was referred for orthodontic treatment. New surgical procedure was performed to remove the gums that covered the premolars to promote their eruption. Five years later, the premolars are in position in the dental arch and there are no signs of recurrence of the lesion. (Rev Port Estomatol Med Dent Cir Maxilofac. 2017;58(2):126-131) © 2017 Sociedade Portuguesa de Estomatologia e Medicina Dentária. Published by SPEMD. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/). rev port estomatol med dent cir maxilofac. 2017;58(2): 126-131 r e s u m o Tratamento cirúrgico de Tumor Odontogénico Adenomatóide: Acompanhamento de 5 anos Palavras-chave: Tumor odontogênico adenomatóide Dente impactado Tumores odontogênicos Cirurgia oral O tumor odontogênico adenomatóide (TOA) é um tumor raro com crescimento limitado egeralmente associado a um dente permanente não erupcionado. É uma lesão benigna, com baixa taxa de recorrência após tratamento cirúrgico. Relato de caso de uma menina de 11 anos de idade com crescimento tumoral assintomático na maxila e deslocamento palatino do incisivo lateral. Radiograficamente, foi observada uma lesão unilocular em torno da coroa do canino superior direito impactado e deslocamento dos pré-molares. Após a biópsia inci-sional, o tumor foi diagnosticado como TOA. A enucleação da lesão e do canino impactado foi realizada. Quatro meses depois, o paciente não apresentou sinais de recorrência e foi encaminhado para tratamento ortodôntico. Um novo procedimento cirúrgico foi realizado para remover a gengiva que cobria os pré-molares para promover sua erupção. Após cinco anos, os pré-molares encontram-se em posição no arco dentário e não existem sinais de recorrência da lesão. (Rev Port Estomatol Med Dent Cir Maxilofac. 2017;58(2):126-131)

The objective of this research was to use the Dental Satisfaction Questionnaire to determine the level of patient’s satisfaction who come to the School of Dentistry of the University of Costa Rica.  The research was conducted with the entire population of patients who received dental care in the Undergraduate Student Clinics of the School of Dentistry between April and September 2021. A digital survey was generated with the questions of the DSQ and sociodemographic variables, which was sent by email.  Descriptive statistics were performed to establish the absolute and relative frequency, as well as measures of central tendency and variability, according to the nature of the variables. The Kolmogorov-Smirnov test was used in the conformity assessment of the data for the normal distribution. The relationships between the scores obtained from the Dental Satisfaction Questionnaire and the sociodemographic variables were analyzed using the Mann-Whitney U Test and the Kruskal-Wallis Test. A response rate of 36% was obtained. 98.5% of the subjects were satisfied with the services received. There was a statistically significant difference between the frequency of visits and the dental satisfaction scale (p=0.001). The scoring by type of clinic with regards to access, pain management, cost and availability were statistically significant (p=0.001, p=0.014, p=0.001, p=0.001, respectively). The differences in the relationship between the age groups and access was significant (p=0.014); in addition to that between education level and cost (p=0.001). A large majority of patients who come to the services of the School of Dentistry UCR are satisfied with the service received.

The e®ect of metal-free chromophores on dye-sensitized solar cell performance is investigated. Solid state dye-sensitized solar cells (ssDSCs) using di®erent molecular sensitizers based on triphenylamine (TPA) with thiophene linkers and di®erent alkyl chain in the donor unit have been characterized using impedance spectroscopy (IS). We show that di®erent molecular structures play a fundamental role on solar cell performance, by the e®ect produced on TiO 2 conduction band position and in the recombination rate. Dye structure and its electronic properties are the main factors that control the recombination, the capacitance and the e±ciency of the cells. A clear trend between the performance of the cell and the optimization level of the blocking e®ect of ‡ ‡ Corresponding author. 1440005-1NANO: Brief Reports and Reviews Vol. 9, No. 5 (2014) the dye structure has been identi¯ed in the solid state solar cells with Spiro-OMeTAD hole conductor.

The aim of this study was to determine the average age and sequence of eruption of permanent dentition in the school population of the province of Cartago, Costa Rica. Methods: A cross-sectional observational study included children between the ages of 5 and 12 from public and private schools. Clinical examination was performed, and the presence or absence of permanent teeth recorded. Statistical analysis: An estimation of means of eruption was used through binary variables, building the probabilities of the presence of a dental piece through a logistic regression. Results: 833 children were examined: 433 (51.90%) girls and 400 (48.10%) boys. The permanent teeth erupt first in the female sex; however, this difference is not statistically significant. The maxilla eruption sequence for girls was 6-1-2-4-3-5-7 on both sides; for boys, the sequence of eruption was 6-1-2-4-5-3-7 for the right side and 6-1-2-4-3-5-7 for the left side. In the jaw, the sequence in boys was 6-1-2-3-4-5-7, and in girls, 1-6-2-3-4-5-7. Conclusions: For the first time, at the Central American Level, the pattern of permanent dentition eruption could be established. The age of permanent dental eruption does not vary according to sex in this population.