Prevalence and clinical presentation of molar incisor hypomineralisation among a population of children in the community of Madrid.

OBJECTIVE: The main objective of this study was to estimate the prevalence of molar incisor hypomineralisation (MIH), an alteration of tooth enamel with an estimated worldwide prevalence rate of 14%, among children using primary care services in the Community of Madrid, Spain. MATERIALS AND METHODS: This was a descriptive, cross-sectional and multicentre study. After calibrating all researchers and following the diagnostic criteria of the European Academy of Paediatric Dentistry (EAPD), children aged between 8 and 16 years who were users of the dental services at 8 primary oral health units of the Madrid Health Service (SERMAS) were included. The children underwent a dental examination, and the parents were asked to complete a questionnaire. RESULTS: The prevalence of MIH was 28.63% (CI: 24.61-32.65%). The age cohorts most affected by MIH were 8 years (21.4%) and 11 years (20.7%). The presence of MIH was greater among girls (85; 60.71%) than among boys (55; 39.28%). The mean number of affected teeth per patient was 4.46 ± 2.8. The most frequently affected molar was the upper right first molar (74.3%), and the upper left central incisor was the most affected incisor (37.85%). Opacities were the defects most frequently recorded (63.57%). CONCLUSIONS: The prevalence of MIH in this study is the highest of all relevant studies conducted in Spain.

Edpuzzle versus Moodle: Learning Tools in Pediatric Dentistry Practice: A Study Pilot.

The aim of the present study was to compare the results of two educational platforms for the development of Flipped Learning (FL) in the preclinical practices of paediatric dentistry: Edpuzzle and Moodle 3.4. Methods: Fifty students filled out a questionnaire on knowledge of pulp treatments in primary dentition (Pre-Q). They were divided into two groups: one watched a video on the pulpotomy technique before preclinical practice using Moodle 3.4 (group A) and the other used Edpuzzle (group B). On the day of practice, the students resolved any doubts with the teacher. Next, they performed a pulpotomy on an artificial tooth and answered the questionnaire again (Post-Q) together with a satisfaction survey. Results: In both groups, an increase in the number of correct answers was found in the Post-Q compared to the Pre-Q (p < 0.001), but with no significant differences between groups. The pulpotomy practice ratings were higher in group B, which used Edpuzzle (p < 0.001). In the satisfaction survey, we only found significant differences (p = 0.003) in access to the video, since 100% of the students in group A found it easy to view it through Moodle, unlike in group B. Conclusions: Our results suggest that the use of educational platforms specially designed for FL, such as Edpuzzle, can improve the qualifications of students in paediatric dentistry practices.

Evaluation of the Severity of Malocclusion in Children with Osteogenesis Imperfecta.

Occlusion is the way in which the dental arches are related to each other and depends on craniofacial growth and development. It is affected in patients with Osteogenesis Imperfecta (OI) who present altered craniofacial development. The malocclusion present in 49 patients diagnosed with different types of OI aged between 4 and 18 was studied. The control group of healthy people was matched for age, sex, and molar class. To study the mixed and permanent dentition, the American Board of Orthodontics (ABO) discrepancy Index was applied. The primary dentition was evaluated with a Temporary Dentition Occlusion Analysis proposed for this study. The OI group obtained higher scores in the Discrepancy Index than the control group, indicating a high difficulty of treatment. The most significant differences were found in types III and IV of the disease. Regarding the variables studied, the greatest differences were found in the presence of lateral open bite in patients with OI, and in the variable "others" (agenesis and ectopic eruption). The analysis of primary dentition did not show significant differences between the OI and control groups. Patients with OI have more severe malocclusions than their healthy peers. Malocclusion is related to the severity of the disease and may progress with age.