Elution of the monomers from composite material polymerized using halogen lamp was significantly greater as compared to curing with diode lamps.

(1) Background: This pilot retrospective cohort research study regarded the frequency of the prevalence of molar-incisor hypomineralization (MIH) in a population of Silesian children in Poland. The evaluation of the potential environmental etiological factors was performed and the correlation between the environmental factors and MIH was analyzed. (2) Methods: A total of 613 children were randomly enrolled in the pilot study (9.0 years ± 1.9). A survey was carried out with mothers regarding the potential exposure to environmental etiological factors of MIH in their children. The patients’ clinical assessments were carried out in the dental unit. (3) Results: The frequency of prevalence of MIH in the population of Silesian children was established at the level of 6.2% (p < 0.05). MIH symptoms were significantly associated with otitis in early childhood (OR = 2.50), atopic dermatitis (OR = 5.69), and premature delivery before 38 weeks of pregnancy (OR = 2.88). (4) Conclusions: MIH was observed in 6.2% of the population of Silesian children, and there was a relationship between environmental risk factors such as otitis, atopic dermatitis, premature birth, and MIH expression. Therefore, further research is needed to determine the influence of pre-, peri-, postnatal, and prophylactic factors on the frequency and severity of MIH symptoms in children.

In recent years, an increase in children diagnosed with molar incisor hypomineralization (MIH) has been observed. Children with MIH show a high failure rate with conservative treatment. The ICON® system (DMG, Hamburg, Germany), which is an infiltration of decalcified lesions with resin, may strengthen the tooth structure, improve its aesthetics, and cure hypersensitivity. The following article is a systematic review based on the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) protocol. Scientific articles in the PubMed and Google Scholar databases describing the use of the ICON system in the treatment of MIH published in the years 2012–2022 were analyzed. Two independent study authors selected publications that show that the ICON system can be used during the treatment of children with MIH. So far, in the literature, there are no standardized protocols for the dental treatment of patients with hypomineralization of the incisors using the ICON system. Therefore, clinicians rarely use this method of treatment. The ICON system may be successfully used to infiltrate tooth decalcification in children with MIH. However, the depth of infiltration and the achievement of enamel hardness after such therapy are not precisely defined.

Introduction. The mechanisms determining the final tooth shape and size are still not well understood. Knowing the precise time of an antineoplastic management and analyzing the subsequent complications resulting from the said harmful therapy may be helpful in finding out more about dental development. Aim of the study. To analyze the process of tooth germ growth on the basis of examination of patients treated with chemotherapy. Materials and methods. A total of ten cancer survivors with tooth agenesis and microdontia were interviewed and underwent clinical and radiographic examinations. Results. In all, 38 disturbed teeth were revealed: 11 missing germs (1 first premolar, 5 second premolars, 3 second molars and 2 lateral incisors) and 27 microdontic teeth (9 first and 5 second premolars, 9 second molars, 2 lateral incisors and 2 third molars). Selected patients underwent cancer treatment between 9 months and 10 years of age. In the majority of cases the age at diagnosis slightly preceded the average time when the mineralization of affected teeth began. Conclusions. Cytotoxic therapy may be responsible for the damage to ectodermal germ cells resulting, among others in hypodontia and microdontia. These abnormalities have been described as occurring at the initiation and bud stage, respectively. Taking into account that chemotherapy was most often administered to the examined patients shortly before tooth germ mineralization, it seems possible the anomalies might have occurred at the later stage of tooth development.

WprowadzenieRozszczep podniebienia jest jedną z najczęstszych wad rozwojowych twarzoczaszki, polegającą na braku ciągłości anatomicznej i niedorozwoju tej struktury. Powoduje ponadto liczne zaburzenia czynnościowe (oddychania, ssania, połykania, żucia i mowy) oraz sprzyja infekcjom dróg oddechowych i ucha środkowegoCel pracyPrzedstawienie na podstawie piśmiennictwa różnych metod leczenia rozszczepu podniebienia, zarówno leczenia protetycznego przy zastosowaniu obturatorów, jak i leczenia chirurgicznego.PodsumowanieRozszczep podniebienia, podobnie jak inne choroby, prawdopodobnie znany był ludzkości od początku jej istnienia. Na przestrzeni wieków podejmowano wiele prób wyleczenia tej wady lub zniwelowania efektów ubocznych. Obecnie obowiązuje wielospecjalistyczny model leczenia rozszczepu podniebienia.