Nederlands tijdschrift voor tandheelkunde最新文献

The aetiology of thalassaemia lies in a defect in the synthesis of 1 of the 2 chains, alpha or beta, of the haemoglobin molecule. This failure primarily results in haemolytic anaemia, which is the main clinical feature of the disorder. As a consequence of this haemolysis, erythropoiesis is stimulated, which in turn leads to morphological changes in the bone and hypertrophy of other organs. Radiographic findings reveal a decrease in cortical thickness accompanied by trabecular reduction in the bone, including the facial bones. Commonly, no local treatment is required in the field of maxillofacial or dental care.

During food intake, 3 groups of muscles are active in coordinating the movements of the mandible and the hyoid bone: masticatory muscles, suprahyoid muscles and infrahyoid muscles. The mandibular nerve innervates the masticatory muscles. The mandibular nerve, the facial nerve and the cervical plexus innervate the suprahyoid muscles. The cervical plexus also innervates the infrahyoid muscles. Overuse of the masticatory muscles by clenching or grinding teeth, for example can result in temporomandibular dysfunction, which is characterized by muscle pain, and is often paired with limited mouth opening and headaches. Treatment is generally conservative and often interdisciplinary in nature. A key component of therapy involves increasing the patient s awareness of parafunctional oral habits.

For many dentists working in oral care for highly vulnerable elderly in Wlz care institutions, it is not always clear how to provide optimal care and what is or isn t expected of them in terms of actions or decisions. Oral care for this group differs from regular oral care in a standard dental practice, where the relationship between the caregiver and the patient is typically one-on-one. In care institutions, multiple parties are involved in the care of a single patient, and various factors must be considered when providing treatment. In addition to caring for the patient, dentists must also take into account legal representatives, geriatric specialists, care staff, and laws and regulations, such as the Care and Coercion Act (Wet zorg en dwang). Therefore, oral care for elderly in care institutions is fundamentally always a form of multidisciplinary care. This guideline has been written by a group of experts and aims not only to support oral care providers in Wlz institutions but also to create uniformity in how oral care should be provided.

Mastic is a resin derived from the mastic tree (Pistacia lentiscus). The scent of mastic is known to have a stimulating effect on salivary secretion. The present study aimed to measure the effect of chewing mastic on various salivary parameters. For comparison, chewing parafilm, a tasteless wax, and a commercially available chewing gum were included. This study was conducted with 35 participants. Saliva samples were collected on 3 separate days, with each participant receiving 1 of the 3 chewing stimuli on each study day. Salivary flow rate, pH, and spinnbarkeit were determined. The results showed that chewing mastic, like chewing gum, increased salivary flow and pH compared to chewing parafilm. Chewing mastic resulted in the highest increase in salivary pH. In all cases, spinnbarkeit decreased after chewing; this effect was least pronounced when chewing gum.

Each orthodontic abnormality has its own ideal moment of referral. For this reason it is important to recognize which orthodontic abnormalities require attention at each dental phase. This article provides an overview of the most relevant orthodontic abnormalities per dental phase and the corresponding time of referral and/or intervention on the basis of rules of thumb and the Orthodontics Checklist . The checklist provides an overview of the developmental phases of the dentition, each with its own orthodontic issues. In order to promote clinical use, an online version is available for reference.

The development of fixed orthodontic appliances has a long history. Archaeological finds suggest Egyptian and Etruscan civilizations made use of techniques for stabilizing and moving teeth. In the 18th century, Pierre Fauchard laid the foundation for modern orthodontics; he was followed by Edward Angle, who introduced a systematic approach in the 19th century. Innovations such as the edgewise bracket, the Begg technique and the acid-etch technique have increased the efficiency and predictability of treatments. Modern developments include self-ligating brackets, improved wires and skeletal anchorage techniques. The steady progress within orthodontics focuses on optimizing forces, patient comfort and duration of treatment. Scientific and technological innovations have contributed to more effective orthodontic corrections and highlight the dynamic nature of the field.

Orthodontic diagnostics are based on medical history and clinical examination, and involve more than mere classification. Various diagnostic systems help structure the assessment of skeletal, dental, and functional abnormalities. In addition to traditional classifications such as Angle s, aesthetic and 3D aspects are becoming increasingly important. Technological developments, such as artificial intelligence and deep learning, enhance the reliability of measurements and classifications, although challenges with accuracy and transparency persist. While artificial intelligence can accelerate and enrich the diagnostic process, particularly for less experienced practitioners, it is no substitute for clinical assessment. Complex cases require human interpretation and interdisciplinary collaboration. Ultimately, treatment decisions depend on the interaction between patient and practitioner.

10.5177/ntvt.2025.12.25010.

A patient s orthodontic history, along with the patient s medical history, forms the basis for thorough orthodontic diagnosis and treatment planning. Attention is paid to the patient s care needs, medical and genetic factors, dental history, habits, and psychosocial development. A good interviewing technique is essential to obtaining valuable information. Clinical examination includes extraoral and intraoral assessment, functional examination, radiographic examination, and model analysis, carefully considering tooth position, symmetry, occlusion, and growth. Digital tools can support this work but never replace the professional responsibilities of the orthodontist. Orthodontic diagnosis requires an integrated approach, necessitating multidisciplinary collaboration in complex cases to achieve safe and effective treatment outcomes.

Caries is one of the most common chronic diseases in children. Despite advice and guidelines, caries prevalence is alarmingly high in the Netherlands. Research suggests that family factors, such as family composition, may play a role in children's oral health. This study focused on the relationship between family composition and oral health in five-year-old children in the Netherlands. The central research question is, To what extent do family size and birth position influence the oral health of 5-year-old children in the Netherlands? This specifically examined whether family expansion affects a child's oral health and to what extent there is a difference between the oral health of only children and children with siblings.