Amelogenesis imperfecta (AI) is defined as an interruption of enamel formation due to genetic inheritance. To prevent malfunction of the masticatory system and an unaesthetic appearance, various treatment options are described. While restoration with a compomer in the anterior region and stainless steel crowns in the posterior region is recommended for deciduous dentition, the challenges when treating such structural defects in mixed or permanent dentition are changing teeth and growing jaw, allowing only temporary restoration. The purpose of this case report is to demonstrate oral rehabilitation from mixed to permanent dentition. The dentition of a 7-year-old patient with AI type I and a 12-year-old patient with AI type II was restored under general anesthesia to improve their poor aesthetics and increase vertical dimension, which are related to problems with self-confidence and reduced oral health quality of life. These two cases show the complexity of dental care for structural anomalies of genetic origin and the challenges in rehabilitating the different phases of dentition.

Parents of children with congenital heart disease (CHD) seem to underestimate the importance of optimized oral health. The low priority for a good oral hygiene and a healthy diet can be a risk factor for odontogenic bacteremia and infective endocarditis. The aim of this study was the evaluation of the disease awareness and dental knowledge of the parents using a questionnaire. Therefore, parents from 107 children with CHD and a healthy control group (HCG) consisting of 101 children both aged 2 to 6 years were asked to complete a questionnaire containing items about the general health, oral hygiene behavior, preventive measures, dental visits and intake of potential drinks and cariogenic nutrition of their child. The results of the present study show that the CHD group had a poorer oral health behavior than the HCG. Healthy children brushed their teeth significantly more often (65.4%) than the CHD children (45.1%). Only 75% of CHD children used fluorides in their daily life in comparison to 86.6% of the healthy children, 8.7% of their parents neglected completely fluoride supplementation. Of all CHD children 23.1% in comparison to 8.1% of the controls had never visited a dentist before. Furthermore, the daily consumption of cariogenic food and drinks was generally higher in the CHD group. These findings demonstrate a need for improvement in parental knowledge of the efficiency of different measures to improve dental health. This important oral health for CHD children from the early stage of life is obvious, especially regarding their risk for odontogenic bacteria and infective endocarditis.

It is recognized that children with congenital heart disease (CHD) are predisposed to having poorer oral health. Therefore, the purpose of this study was to evaluate the effectiveness of an interdisciplinary preventive oral hygiene program (POHP) for children with CHD. The aim was the reduction of the incidence of dental caries, as well as improvement of oral hygiene. The total number of participants in this study was 107 children with CHD aged between two to six years. At baseline, these children were compared to a healthy control group (HCG) of 101 children of similar age from five preschools in Giessen, Germany. All examinations were carried out before the introduction of a standardized POHP. The Quigley/Hein Plaque- (QHI), Silness/Loe Gingival- (GI) and Gingival Hyperplasia Index (GHI) were determined. Starting with baseline, the described procedures were repeated in the CHD group during two follow-ups after three and six months. In the first examination, compared to controls, CHD children showed a significantly (p < 0.05) poorer oral hygiene (QHI: 2.6; GI: 0.3; GHI: 0.2). All oral hygiene parameters (QHI, GI, GHI) of the CHD group improved significantly over the whole period of the preventive program (p < 0.05). These results demonstrated an improvement in CHD children involved in a standardized POHP. The data with regard to the general health of these risk patients, including prevention of endocarditis, demonstrate the necessity of an interdisciplinary approach between pediatric cardiologists, pediatricians and dentists.

Oral bacteria have been associated with several systemic diseases. Moreover, the abundance of bacteria associated with caries has been found to be higher in patients with congenital heart disease (CHD) than in healthy control groups (HCGs). Therefore, this study aimed to evaluate the dental microbiota in children with CHD compared to a HCG. The aim was to describe and compare the carious microbiome regarding the composition, diversity, and taxonomic patterns in these two groups. Twenty children with CHD and a HCG aged between two and six years participated. All of them were affected by early childhood caries. Microbiome profiling indicated that Fusobacterium, Prevotella, Capnocytophaga, and Oribacterium were more abundant in the CHD group, whereas Lactobacillus and Rothia were predominant in the HCG. Furthermore, microbiome analysis revealed three distinct clusters for the CHD and HCG samples. In the first cluster, we found mainly the genera Lactobacillus and Coriobacteriaceae. The second cluster showed a higher relative abundance of the genus Actinomyces and a more diverse composition consisting of more genera with a smaller relative lot. The third cluster was characterized by two genera, Streptococcus and Veillonella. These data can help us to understand the oral microbial community structures involved in caries and endodontic infections of pre-school children in relation to the general health of these high-risk patients.

Zusammenfassung: Die Molaren-Inzisiven-Hypomineralisation (MIH) stellt den behandelnden Zahnarzt und Kieferorthopäden vor schwierige Therapieentscheidungen. Einerseits stellt der Zahnerhalt die höchste Priorität dar, ist aber bei einer großflächigen Zerstörung des Zahnes, oft begleitet mit ausgeprägten Hypersensitivitäten, nicht immer zu gewährleisten. Der vorliegende Patientenfall skizziert einen Therapieansatz, bei dem die vier Sechsjahrmolaren aufgrund von MIH sehr frühzeitig im Alter von 8,9 Jahren extrahiert wurden. Der hier durchgeführte Lückenschluss wurde mit dem kombiniert myofunktionell-kieferorthopädischen Behandlungskonzept mykie (= myofunktionelle Kieferorthopädie) unterstützt. Space Closure After Extraction of Permanent First Molars with molar incisor hypomineralization Supported by the Myofunctional-Orthodontic Therapy Concept mykie – A Case Report