Since 2004, marine biodiversity inventory data have been systematically collected with diving, video, and benthic sampling methods in Finland. To date, this collection of data consists of more than 194 000 spatially explicit observations, covering more than 280 aquatic genera, representing mainly macroalgae, vascular plants, water mosses, and invertebrates. We describe the data collection and storage methods, data extraction from national databases, and provide potential users a curated, open-access version of the inventory data.
View Article and Find Full Text PDFObjective: Remote teaching strategies have been widely adapted in recent years but their impact on dental students' learning outcomes is less well understood. The aim of this mixed-method pilot study was to examine the impact of remote teaching on undergraduate dental student's learning outcome as assessed by examination performance and student feedback in an orthodontics course.
Methods: Out of the lectures (19 in total), 10 were delivered remotely (live online lecture or video recording) and 9 as traditional classroom teaching in 2023.
Background: Cartilage-hair hypoplasia (CHH) is a rare syndromic immunodeficiency with metaphyseal chondrodysplasia and increased risk of malignancy. In this cross-sectional observational study, we examined HPV status and oral microbiome in individuals with CHH. Oral brush samples were collected from 20 individuals with CHH (aged 5-59 years) and 41 controls (1-69 years).
View Article and Find Full Text PDFObjectives: The aim of this observational cross-sectional one-centre study was to assess whether the previously described national orthodontic treatment practises and international recommendations are implemented in a public health care centre in Finland. We also assessed early treatment practices and appliances used.
Methods: The study group comprised 801 children born in 2011 and 2012 residing in the Riihimäki health centre catchment area in Finland, representing 80% of the age cohort.
Introduction: The aim of the study was to compare the effects of a 30 µg/day versus 10 µg/day vitamin D supplementation, given during the two first years of life, on oral health at the age of six to 7 years.
Methods: In 2013-2016, we conducted a randomized, double-blinded, clinical trial from age 2 weeks to 2 years of daily vitamin D3 supplementation (10 vs. 30 µg), including 975 healthy infants.
Acta Odontol Scand
March 2023
Conclusions: Our results imply that online teaching did not systematically improve or worsen the examination performance of undergraduate students of dentistry. Our findings have important policy implications for educational practices in the future. The observed annual grade variation might reflect the effectiveness of remote teaching, changes in students' performance, or non-systematic grading.
View Article and Find Full Text PDFFront Endocrinol (Lausanne)
February 2022
Background: Biallelic mutations in the non-coding RNA gene cause Cartilage-hair hypoplasia (CHH), a rare skeletal dysplasia in which the main phenotypic characteristic is severe progressive growth retardation.
Objective: This study compared the cranial dimensions of individuals with CHH to healthy subjects.
Methods: Lateral skull radiographs of 17 patients with CHH (age range 10 to 59 years) and 34 healthy individuals (age range 10 to 54 years) were analyzed for relative position of the jaws to skull base, craniofacial height and depth, as well as vertical growth pattern of the lower jaw, anterior cranial base angle, and the relationship between the cervical spine and skull base.
Objectives: To assess the quality and stability of orthodontic treatment outcome relative to the initial malocclusion.
Material And Methods: The study was performed in one public health care clinic in Finland. Study subjects comprised 51 orthodontic patients (age range 12.
Objective: This cross-sectional study compared tooth and dental arch dimensions of individuals with Osteogenesis imperfecta (OI) and healthy controls.
Material And Methods: The 37 OI patients and 37 controls were aged 10 to 74 years. Mesio-distal tooth size, dental arch dimensions, and palatal height were measured from dental models.
Background: Success of orthodontic removable appliance treatment relies on patient compliance. The aim of this quantitative and qualitative study was to explore the compliance and self-reported experience of adolescents in orthodontic treatment with headgear activator (HGA) or twin-block (TB) appliance.
Materials/methods: The study group comprised 52 adolescents with a mean age of 12.
Background: Patients with Osteogenesis imperfecta (OI) suffer from increased bone fracture tendency generally caused by a mutation in genes coding for type I collagen. OI is also characterized by numerous co-morbidities, and recent data from questionnaire studies suggest that these may include increased risk for sleep apnea, a finding that lacks clinical evidence from cohort studies. In this cross-sectional study, 25 adults with OI underwent clinical otorhinolaryngology examination as well as overnight polysomnography to address the question.
View Article and Find Full Text PDFBackground: Persisting fatigue has been reported to be a common complaint by individuals with connective tissue disorders, including Osteogenesis imperfecta (OI). This controlled study evaluated in an adult OI population the subjective experience of fatigue, affecting daily life. Sleep disturbances and chronic pain were examined as hypothesized underlying factors.
View Article and Find Full Text PDFBisphosphonates have established their role as medical therapy for pediatric osteogenesis imperfecta (OI) patients. Since bisphosphonates have also been shown to delay tooth development in animal models, we aimed to assess whether the medication has a similar effect on children with OI. In this cross-sectional study, bisphosphonate-treated OI patients of whom dental panoramic tomograph was taken between 3 and 16years of age formed the study group.
View Article and Find Full Text PDFObject: Cranial base pathology is a serious complication of osteogenesis imperfecta (OI). Our aim was to analyze whether bisphosphonate treatment, used to improve bone strength, could also prevent the development of craniocervical junction pathology (basilar impression, basilar invagination, or platybasia) in children with OI.
Methods: In this single-center retrospective study the authors analyzed the skull base morphology from lateral skull radiographs and midsagittal MR images (total of 94 images), obtained between the ages of 0 and 25 years in 39 bisphosphonate-treated OI patients.
Background: Joint hypermobility is a common clinical characteristic of patients with Osteogenesis imperfecta (OI), a disorder with serious comorbidities of scoliosis and cranial base anomalies. This study aimed at evaluating how prevalent joint hypermobility is in paediatric OI patients, and to find out whether it serves as a potential predictive marker of the different spinal complications; scoliosis and craniovertebral anomalies (basilar impression and basilar invagination).
Methods: In this cross-sectional one-center study we analysed retrospectively clinical patient records and radiographs of 47 OI patients, aged 1-19 years, some of whom were treated with bisphosphonates.
Pathology in the craniocervical junction is a serious complication of osteogenesis imperfecta (OI). Our aim was to analyze the prevalence and natural course of craniocervical junction anomalies in patients with OI during growth. In a one-center retrospective study, we analyzed lateral skull radiographs and midsagittal magnetic resonance images of 76 patients with either type I, III, or IV OI.
View Article and Find Full Text PDFCranial base abnormalities are an important complication of osteogenesis imperfecta (OI), a hereditary bone fragility disorder that in most patients is caused by mutations affecting collagen type I. To elucidate which clinical characteristics are associated with the occurrence of cranial base abnormalities in OI, we compared cephalometric results of 187 OI patients (median age 12.0 years, range 3.
View Article and Find Full Text PDFIntroduction: Abnormal configuration of the craniocervical junction in the form of basilar impression or invagination, with often-associated platybasia, is a clinically significant cause of neurological symptoms particularly in patients with inherited diseases affecting the connective tissue. To better understand the course of development of these basilar abnormalities and further define their diagnostic criteria in children, we analysed longitudinally changes in the vertical dimensions of the craniocervical junction and in the flexion of the anterior skull base in normal growing individuals.
Methods: The distance of the odontoid process to four reference lines and the anterior skull base angle was measured in consecutive series of at least five lateral skull radiographs of 30 females and 23 males.