Minimally invasive orthodontics: elastodontic therapy in a growing patient affected by Dentinogenesis Imperfecta

AIM: The aim of the study was to report the use of an elastodontic therapy in a growing patient affected by Dentinogenesis Imperfecta, second class malocclusion, deep bite and lower arch crowding from the deciduous dentition to permanent one. CASE REPORT: At first, the 5-year-old patient was treated with an elastodontic device known as "Nite-Guide". When the patient was 7 years old, during her first permanent molars and incisors eruption and after optimal house-practices, an Occlus-o-Guide Series G was placed at night and on daylight (two hours a day) performing exercises aimed to activate facial muscles and facilitate the deep bite reopening. At 9 years of age, with totally deep bite resolution, she used the Occluso-Guide only at night to hold down previous results and follow patient's dental growth. At 11 years of age, after successful teeth switching, we prescribed an Occlus-o-Guide Series N, which is functional for permanent dentition and guaranteed an eruptive guide for last dental elements. CONCLUSIONS: This clinic case could be considered an example of approach for all those patients with systemic and/or dental diseases that do not allow adequate dental retention, which is necessary for most orthodontic appliances; elastodontic devices do not require adequate dental retention and define a minimum intervention on the surfaces of the teeth

Alternative Method for Posterior Lumbar Discectomy and Development of Associated Bench Top Test

A discectomy is a common surgical procedure performed to remove the fibrous disc material between adjacent vertebrae in the spine, known as vertebral disc. Current methods and tools used in discectomies are time consuming and potentially dangerous, with opportunity for human error. There is a need for a new method of disc removal that can improve clinical results by reducing surgical times, preventing damage to surrounding anatomy, and more thoroughly removing the vertebral disc. A reduction in surgery times and increase of effective disc removal will help to increase success, recovery, and spinal fusion rates. This project aims to provide a prototype instrument and associated bench top test focused on providing a more streamlined and successful discectomy procedure from the posterior approach while mitigating the risks associated with human error. Collaboration with industry experts resulted in the modification of commonly-used pituitary rongeurs to include in-line aspiration through surgical tubing. This development improves upon the current surgical technique by eliminating the need to remove the instrument from the patient, thus reducing time requirements and preventing the need for additional training. Current discectomy methods require up to three hours for a full disc removal under optimal conditions. This method aims to reduce that requirement by approximately half. In addition, research into synthetic disc material, coupled with available 3D printing technology, has yielded a bench top test that can be used in regulatory validation and proof of concept. This test aims to recreate disc anatomy without requiring access to expensive and single-use cadavers.https://scholarscompass.vcu.edu/capstone/1195/thumbnail.jp

An overview of selected orthodontic treatment need indices

Orthodontics is a fast developing science as well as the field of medicine in general. The attempt of this book is to propose new possibilities and new ways of thinking about Orthodontics beside the ones presented in established and outstanding publications available elsewhere. Some of the presented chapters transmit basic information, other clinical experiences and further offer even a window to the future. In the hands of the reader this book could provide an useful tool for the exploration of the application of information, knowledge and belief to some orthodontic topics and questions

Early mandibular canine-lateral incisor transposition: case report

Purpose. The main aim of the present study is to present a case of mandibular transposition between lateral incisor and canine in a paediatric patient. Materials and methods. A fixed multibracket orthodontic treatment was performed by means of a modified welded arch as to correct the transposition and obtaining a class I functional and symmetrical occlusion, also thanks to the early diagnosis of the eruption anomaly. Results. Our case report shows that a satisfactory treatment of mandibular transpositions is obtained when detected at an early stage of the tooth development. Conclusions. The main treatment options to be taken into consideration in case of a mandibular transposition are two: correcting the transposition or aligning it leaving the dental elements in their transposed order; in both cases, the followups show a stable condition, maintained without relapses. Several factors, such as age of the patient, occlusion, aesthetics, patient’s collaboration, periodontal support and duration of treatment have to be considered as to prevent potential damage to dental elements and support appliances. The choice between the two treatment approaches for mandibular lateral incisor/canine transpositions mainly depends on the time the anomaly is detected

Beak deformities in north Patagonian birds

Within the last decade, many individuals of several bird species with abnormal and strange beaks deformationshave been reported from Alaska, United States, and from United Kingdom and Ireland. Different forms of beakdeformities were observed, but the causes of these abnormalities are unknown. We report beak deformities in twospecies of birds in northwestern Patagonia, Argentina: Austral Thrush (Turdus falcklandii) and Patagonian Mockingbird(Mimus patagonicus). Between 2013 and 2016, we captured individuals of White‐crested Elaenia (Elaenia albiceps, N= 305), Rufous‐collared Sparrow (Zonotrichia capensis, N = 119), Austral Thrush (N = 100), Black‐chinned Siskin (Spinusbarbata, N = 64), Patagonian Sierra‐Finch (Phrygilus patagonicus, N = 48) and Gray‐hooded Sierra‐Finch (Phrygilusgayi, N = 40) in surroundings of Esquel city, located in western Patagonia, Chubut province, and quantified the prevalenceof beak deformities. Only adult Austral Thrushes (5 out of 78; 6.41%) showed abnormal beaks. Neither juvenilethrushes (N = 22) nor the other five species showed beak deformations. Austral Thrushes with beak deformationswere also observed and photographed (but not captured) in other areas around the city. We also photographed onePatagonian Mockingbird with an abnormal beak near Las Plumas Village, Chubut province. Beak deformities variedfrom light to severe, and also in their form. Most of them were characterized by an elongated and often decurvedupper mandible, producing an overbite; in other individuals both mandibles were elongated and sometimes crossedor had a pronounced gap. Most affected birds showed signs of improper preening, and one of them was malnourished.All of these characteristics are similar to those described for birds affected by avian keratin disorder in NorthAmerica. Further research is needed to detect potential presence of other species with beak deformities in Patagonia,to find out possible causes of such deformities, and to determine whether these anomalies are associated with naturalhabitats or urban environments.Fil: Gorosito, Cristian Andrés. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; ArgentinaFil: Gonda, Héctor Eduardo. Centro de Investigación y Extensión Forestal Andino Patagónico; Argentina. Universidad Nacional de la Patagonia "san Juan Bosco". Facultad de Ingeniería - Sede Esquel; ArgentinaFil: Cueto, Víctor. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Patagonia Norte. Centro de Investigación Esquel de Montaña y Estepa Patagóica. Universidad Nacional de la Patagonia "San Juan Bosco". Facultad de Ciencias Naturales - Sede Esquel. Centro de Investigación Esquel de Montaña y Estepa Patagónica; Argentin

Moving an incisor across the midline: A treatment alternative in an adolescent patient

A 13-year-old sought treatment for a severely compromised maxillary left central incisor and an impacted fully developed left canine. Extraction of both teeth became necessary. As the key component of the revised comprehensive treatment plan, the right maxillary central incisor was moved into the position of the left central incisor. All other maxillary teeth were moved mesially to close any gaps. Active orthodontic treatment was completed after 34 months. Frenectomy, minor periodontal surgeries, and bonded lingual retainers were used to improve aesthetics and stabilize the tooth positions. The patient was pleased with the treatment outcome. Cone-beam computed tomography provided evidence that the tooth movement was accompanied by a deviation of the most anterior portion of the median palatine suture. This observation may make relapse more likely if long-term retention cannot be ensured. Root resorption was not observed as a consequence of the major tooth movement. (Am J Orthod Dentofacial Orthop 2011;139:533-43

Hubungan Antara Overjet Dan Overbite dengan Status Psikososial Dewasa Awal Mahasiswa Fakultas Ekonomi dan Bisnis Universitas Muhammadiyah Surakarta Tahun 2014

Oklusi merupakan gerakan maksila dan mandibula gigi yang saling berkontak. Hubungan gigi saat oklusi normal dipengaruhi posisi overjet dan overbite. Besar overjet dan overbite dapat terlihat jelas ketika berbicara atau berinteraksi dengan orang lain. Hal ini dapat menyebabkan pengaruhnya dalam status psikososial seseorang. Kualitas hidup dewasa awal terjadi dengan kemantapan jati diri dan merupakan masa reproduktif, yang merupakan masa peralihan dari remaja ke dewasa. Berbagai penelitian tentang dampak gigi terhadap status psikososial telah banyak dilakukan. Meskipun demikian penelitian seperti ini masih jarang di Indonesia khususnya di Surakarta. Oleh karena itu, perlu dilakukan penelitian agar memperoleh data mengenai hubungan overjet dan overbite dengan status psikososial khususnya pada dewasa awal. Tujuan dari penelitian ini adalah untuk mengetahui hubungan antara overjet dan overbite dengan status psikososial dewasa awal mahasiswa Fakultas Ekonomi dan Bisnis Universitas Muhammadiyah Surakarta. Penelitian ini merupakan penelitian observasional analitik. Digunakan 96 sampel dewasa awal mahasiswa FEB Universitas Muhammadiyah Surakarta berusia 20-25 tahun, untuk diukur besar overjet dan overbite tiap mahasiswa. Kemudian pengisian kuesioner menggunakan PIDAQ (Psychosocial Impact of Dental Aesthetics Questionnaire) untuk melihat persepsi responden mengenai giginya. Data dianalisis dengan uji korelasi Spearman. Hasil dari penelitan menunjukkan korelasi overjet dan status psikososial sangat lemah, tidak signifikan, namun searah, dengan nilai p = 0,284 (>0,05) dan r = 0,110. Korelasi antara overbite dan status psikososial sangat lemah, tidak signifikan, dan tidak searah, dengan nilai p = 0,908 (>0,05) dan r = -0,012. Kesimpulan dari penelitian adalah terdapat hubungan yang tidak bermakna antara overjet dan overbite dengan status psikososial dewasa awal mahasiswa FEB Universitas Muhammadiyah Surakarta tahun 2014

Orthodontic treatment need and prevalence of malocclusions in the Orthodontic Unit of "Sapienza - University of Rome" : a six - year clinical experience

AIM The objective of this epidemiological survey was to investigate the dental-skeletal features of subjects attending the Public Dental Service in U.O.C. (Orthodontic Department of “La Sapienza University of Rome) and compare them with the existing body of evidence coming from other surveys. Accordingly, the Index of Orthodontic Treatment Need (I.O.T.N.) was employed, in order to achieve a common framework to allow the shaping of public health prevention practices. MATERIALS & METHODS A sample of 3491 subjects in the Orthodontic Department of “La Sapienza- University of Rome” (UOC) was evaluated with the adoption of I.O.T.N. to define malocclusion severity. RESULTS In the result analysis, it was observed that class II malocclusion was more frequent in the sample (40%), and a large part of the examined population also presented mandibular dental crowding (43%), increased overjet (41%), increased overbite (38%). Only 26,44% (20,17% IOTN 4; 6,27% IOTN 5) had strong need for orthodontic treatment. CONCLUSION The realization of epidemiologic investigations to establish priority for treatment need is therefore particularly useful, not only to estimate the prevalence of some clinical conditions in the observed population, but also to plan targeted interventions, such as interceptive and corrective therapies in growing children. CLINICAL SIGNIFICANCE These interventions could solve specific clinical situations and/or prevent their escalation. Only in this way it’s possible to avoid fragmenting the limited resources available, using them for patients with an objective need