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https://www.readbyqxmd.com/read/29333593/control-of-anterior-segment-using-an-antero-posterior-lingual-sliding-retraction-system-a-preliminary-cone-beam-ct-study
#1
Min Hwang, Hyo-Won Ahn, Soon-Yong Kwon, Jeong-Ho Choi, Seong-Hun Kim, Gerald Nelson
BACKGROUND: This study was performed to evaluate the treatment effects of the antero-posterior lingual retractor (APLR), focusing on the 3-dimensional (3D) tooth movement of the maxillary anterior teeth and their alveolar bone levels. METHODS: En masse retraction was performed using either the C-lingual retractor (CLR, C-group, n = 9) or the antero-posterior lingual retractor (APLR, AP-group, n = 8). We evaluated 3D movement of the maxillary anterior teeth and alveolar bone levels, root length of the central incisors, long axes of the maxillary canines, and occlusal plane changes from CBCT images...
January 15, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29333321/periodontal-wound-healing-following-reciprocal-autologous-root-transplantation-in-class-iii-furcation-defects
#2
Naoshi Takeuchi, Yoshinori Shirakata, Yukiya Shinohara, Kotaro Sena, Kazuyuki Noguchi
Purpose: Furcation involvement in the molars is difficult to treat, and has been recognized as a risk factor for tooth loss. Although periodontal regenerative therapies, including guided tissue regeneration and various types of bone grafts, have been applied to furcation defects, the effects of these treatments are limited, especially in large class III furcation defects. The purpose of this pilot study was to investigate the effect of reciprocal autologous root transplantation on periodontal wound healing and regeneration in class III furcation defects in dogs...
December 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29330841/delayed-replantation-of-an-avulsed-immature-permanent-incisor-and-apexification-using-a-novel-fast-setting-calcium-silicate-cement-containing-fluoride-a-3-year-follow-up-case-report
#3
A Vafaei, B Ranjkesh, L Erfanparast, H Løvschall
BACKGROUND: Traumatic tooth avulsion requires an urgent intervention to replant the tooth. Prolonged post-injury dry extra-oral conditions worsen the prognosis and increase the risk of root resorption. Fluoride has the potential to delay replacement resorption. Calcium silicate cements (CSC) are used to seal the root canal system and to stimulate periapical regeneration in immature open apex teeth (apexification). This report suggests the application of a novel fast-setting CSC with fluoride for apexification in an attempt to hinder root resorption...
January 12, 2018: European Archives of Paediatric Dentistry: Official Journal of the European Academy of Paediatric Dentistry
https://www.readbyqxmd.com/read/29324242/expression-profiling-of-the-dolichos-lablab-lectin-during-germination-and-development-of-the-seed
#4
Yashavanth L Vishweshwaraiah, Balaji Prakash, Lalitha R Gowda
The temporal expression of the field bean (Dolichos lablab) galactose specific lectin, DLL-II, during germination, post-germination and seed development was evaluated using Native-PAGE followed by activity staining, immunodetection and quantitative Real Time PCR (qPCR). A rapid and steep decline in the polyphenol oxidase (PPO) and hemagglutinating activity during the initial stages of germination, which did not correlate with the slow decline in total protein was observed. During post germination period, PPO and hemagglutination activities were negligible, whereas a rapid resorption of the protein was evident...
January 4, 2018: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/29314755/replanted-teeth-stored-in-a-newly-developed-powdered-coconut-water-formula
#5
Manuella Verdinelli de Paula Reis, Carlos José Soares, Priscilla Barbosa Ferreira Soares, Aletheia Moraes Rocha, Cristiane Clemente de Mello Salgueiro, Márcia Helena Niza Ramalho Sobral, Camilla Christian Gomes Moura
BACKGROUND/AIM: A newly developed powdered coconut water formulae (ACP-404) has been proposed to preserve periodontal ligament cell viability. The aim of this study was to investigate the periodontal healing of dog teeth replanted after storage in ACP-404 with two different osmolalities. MATERIALS AND METHODS: Sixty teeth of 10 adult beagle dogs were extracted and randomly subjected to the following protocols: immediate replantation after extraction (positive control); dry conditions (negative control); and storage in ACP-404 I (G1), ACP-404 II (G2), in coconut water long-shelf (G3), or in pH-neutralized coconut water long-shelf (G4) for 50 minutes before replantation...
January 5, 2018: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/29309349/clinical-findings-of-a-cantilever-iliac-bone-graft-for-secondary-correction-of-cleft-lip-nose-deformities
#6
Madoka Sugiyama, Takashi Nakatsuka, Hideto Saijo, Yuko Fujihara, Yuki Kanno, Atsuhiko Hikita, Tsuyoshi Takato, Kazuto Hoshi
The authors performed a cantilever iliac bone graft for the secondary correction of severe cleft lip-nose deformities after the completion of growth. For the purpose of clarifying effects of the cantilever iliac bone grafts and the adverse events with regard to their time course changes after this procedure, the authors retrospectively surveyed long-term morphologic changes in 65 cleft lip, alveolus, and palate patients in whom cleft lip-nose deformities were treated with a cantilever iliac bone graft (age at surgery: 14-45 years old)...
January 5, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29303756/external-resorption-of-a-maxillary-incisor-associated-with-a-canine-with-a-deviating-eruption-path-a-case-report
#7
Bráulio Pasternak-Júnior, Débora Delai, César Augusto Pereira Oliveira, Patrícia Maria Poli Kopper
The aim of this case report is to describe the treatment of an 11-year-old boy who was referred to an endodontist for evaluation of external inflammatory root resorption in the distal apical third of the permanent maxillary left lateral incisor, caused by deviation in the eruption path of the permanent maxillary left canine. The results of the pulpal sensitivity test of the permanent maxillary left lateral incisor were inconclusive and similar to those for the homologous tooth, so the endodontist opted for a clinical and radiographic follow-up...
January 2018: General Dentistry
https://www.readbyqxmd.com/read/29302879/effectiveness-of-en-masse-versus-two-step-retraction-a-systematic-review-and-meta-analysis
#8
REVIEW
Mumen Z Rizk, Hisham Mohammed, Omar Ismael, David R Bearn
BACKGROUND: This review aims to compare the effectiveness of en masse and two-step retraction methods during orthodontic space closure regarding anchorage preservation and anterior segment retraction and to assess their effect on the duration of treatment and root resorption. METHODS: An electronic search for potentially eligible randomized controlled trials and prospective controlled trials was performed in five electronic databases up to July 2017. The process of study selection, data extraction, and quality assessment was performed by two reviewers independently...
January 5, 2018: Progress in Orthodontics
https://www.readbyqxmd.com/read/29291387/a-pilot-study-of-the-metabolomic-profiles-of-saliva-from-female-orthodontic-patients-with-external-apical-root-resorption
#9
Jinling Zhou, Huimin Hu, Renhuan Huang
BACKGROUND: Orthodontically induced external apical root resorption (OIEARR) is one of the most severe complications of orthodontic treatment, which is hard to diagnose at early stage by merely radiographic examination. This study aimed to identify salivary metabolic products using unbiased metabolic profiling in order to discover biomarkers that may indicate OIEARR. MATERIALS AND METHODS: Unstimulated saliva samples were analyzed from 19 healthy orthodontic patients with EARR (n=8) and non-EARR (n=11)...
December 29, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29290679/heredity-genetics-and-orthodontics-how-much-has-this-research-really-helped
#10
James K Hartsfield, George Jeryn Jacob, Lorri Ann Morford
Uncovering the genetic factors that correlate with a clinical deviation of previously unknown etiology helps to diminish the unknown variation influencing the phenotype. Clinical studies, particularly those that consider the effects of an appliance or treatment regimen on growth, need to be a part of these types of genetic investigations in the future. While the day-to-day utilization of "testing" for genetic factors is not ready for practice yet, genetic testing for monogenic traits such as Primary Failure of Eruption (PFE) and Class III malocclusion is showing more promise as knowledge and technology advances...
December 2017: Seminars in Orthodontics
https://www.readbyqxmd.com/read/29287661/time-dependent-behavior-of-porcine-periodontal-ligament-a-combined-experimental-numeric-in-vitro-study
#11
Thomas Johannes Knaup, Cornelius Dirk, Susanne Reimann, Ludger Keilig, Meike Eschbach, Heike Korbmacher-Steiner, Christoph Bourauel
INTRODUCTION: The aim of this study was to analyze the time-dependent in-vitro behavior of the periodontal ligament (PDL) by determining the material parameters using specimens of porcine jawbone. Time-dependent material parameters to be determined were expected to complement the results from earlier biomechanical studies. METHODS: Five mandibular deciduous porcine premolars were analyzed in a combined experimental-numeric study. After selecting suitable specimens (excluding root resorption) and preparing the measurement system, the specimens were deflected by a distance of 0...
January 2018: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/29287156/evaluation-of-the-diagnostic-yield-of-dental-radiography-and-cone-beam-computed-tomography-for-the-identification-of-dental-disorders-in-small-to-medium-sized-brachycephalic-dogs
#12
Sophie Döring, Boaz Arzi, David C Hatcher, Philip H Kass, Frank J M Verstraete
OBJECTIVE To evaluate the diagnostic yield of dental radiography (Rad method) and cone-beam CT (CBCT) methods for the identification of 31 predefined dental disorders in brachycephalic dogs. ANIMALS 19 client-owned brachycephalic dogs admitted for evaluation and treatment of dental disease. PROCEDURES 31 predefined dental disorders were evaluated separately and scored by use of dental radiography and 3 CBCT software modules (serial CBCT slices and custom cross sections, tridimensional rendering, and reconstructed panoramic views)...
January 2018: American Journal of Veterinary Research
https://www.readbyqxmd.com/read/29282560/effects-of-corticopuncture-cp-and-low-level-laser-therapy-lllt-on-the-rate-of-tooth-movement-and-root-resorption-in-rats-using-micro-ct-evaluation
#13
Selly Sayuri Suzuki, Aguinaldo Silva Garcez, Patricia Oblitas Reese, Hideo Suzuki, Martha Simões Ribeiro, Won Moon
The aim of this study was to compare the rate of tooth displacement, quantity of root resorption, and alveolar bone changes in five groups: corticopuncture (CP), low-level laser therapy (LLLT), CP combined with LLLT (CP + LLLT), control (C), and negative control (NC). A total of 60 half-maxilla from 30 male Wistar rats (10 weeks old) were divided randomly into five groups: three (CP, LLLT, and CP + LLLT) test groups with different stimulation for accelerated-tooth-movement (ATM), one control (C) group, and one negative control (NC) group with no tooth movement...
December 27, 2017: Lasers in Medical Science
https://www.readbyqxmd.com/read/29280412/tooth-root-and-alveolar-bone-grey-values-derived-from-cone-beam-ct-imaging-in-maxillary-incisor-tooth-with-and-without-apical-root-resorption
#14
Marcio José da Silva Campos, Karine Simões Silva, Paula Moraes Lupatini, Marcelo Reis Fraga, Robert Willer Farinazzo Vitral
INTRODUCTION: In orthodontic treatment, an increased bone mineral density of the alveolar bone is considered as a risk factor for apical root resorption (ARR), whereas the mineral density of cementum has been associated with root protection against resorption. METHODS: This study aimed at evaluating the grey values (GVs) of the apical third of the root and of the alveolar bone adjacent to maxillary incisors with and without ARR in orthodontic patients. Twenty-one patients under treatment who presented one incisor with ARR and its corresponding contralateral without ARR were selected and submitted to cone-beam computed tomography...
December 27, 2017: Journal of Orthodontics
https://www.readbyqxmd.com/read/29279664/evaluation-of-intracanal-acetazolamide-in-late-reimplanted-rat-teeth
#15
Camila Paiva Perin, Vula Papalexiou, Aline Cristina Batista Rodrigues Johann, Natanael Henrique Ribeiro Mattos, Fernando Henrique Westphalen, Vânia Portela Ditzel Westphalen
Objective: The aim of this study was to evaluate the use of acetazolamide combined with different agents as intracanal medication in late reimplanted rat teeth. Materials and Methods: In 100 Wistar rats, divided into 5 groups of 20, one of the following medications was used: Acetazolamide liquid (AL); AL with calcium hydroxide powder (ALHC); acetazolamide powder with AL; acetazolamide powder with physiological solution; and calcium hydroxide with physiological solution (control)...
October 2017: European Journal of Dentistry
https://www.readbyqxmd.com/read/29279629/management-of-invasive-cervical-resorption-using-a-surgical-approach-followed-by-an-internal-approach-after-2-months-due-to-pulpal-involvement
#16
Marina Fernandes, Lilian Menezes, Ida De Ataide
Invasive cervical resorption (ICR) is an aggressive and invasive form of external tooth resorption that commences in the cervical region which can be managed using either a nonsurgical, surgical or a combination of nonsurgical and surgical approach. The restoration of resorptive defects having a coronal and radicular extent can be challenging as a single material cannot be used to restore the entire defect. This case presented with Heithersay's Class 3 ICR lesion in tooth #12, which was managed initially using a surgical approach and restoration of ICR defect with a combination of resin modified glass ionomer cement, composite resin and mineral trioxide aggregate (MTA)...
May 2017: Journal of Conservative Dentistry: JCD
https://www.readbyqxmd.com/read/29279573/effect-of-local-bone-marrow-stromal-cell-administration-on-ligature-induced-periodontitis-in-mice
#17
Shinya Iguchi, Daigo Suzuki, Eisuke Kawano, Takayuki Mashimo, Mikihito Kajiya, Taku Toriumi, Toshihisa Kawai, Hidemi Kurihara, Keitaro Isokawa, Shuichi Sato, Masaki Honda
Bone marrow-derived multipotent stromal cells (BMSCs) have potent antiinflammatory effects. This study aimed to investigate the antiinflammatory potential of BMSCs using a mouse model of ligature-induced periodontitis. BMSCs were isolated from the femurs and tibiae of mice. Periodontitis was induced by placing a ligature around the right maxillary second molar. After 3 days, the mice were administered BMSC in the gingiva of the mesial interdental papilla around the ligatured molar. The ligatured and non-ligatured mice that were not administered BMSC served as controls...
2017: Journal of Oral Science
https://www.readbyqxmd.com/read/29275849/management-of-intruded-immature-maxillary-central-incisor-with-pulp-necrosis-and-severe-external-resorption-by-regenerative-approach
#18
Giorgos N Tzanetakis
INTRODUCTION: Intrusive luxation is one of the most severe traumatic injuries of permanent teeth that may adversely affect the pulp and the periodontium. Pulp necrosis and root resorption are the main pathologic entities associated with this injury. The present report describes the endodontic management of an intruded immature maxillary central incisor presented with pulp necrosis and severe inflammatory root resorption by using the regenerative approach. METHODS: A 7-year-old boy with dental trauma to the anterior maxillary region was referred for the management of a traumatized maxillary central incisor...
December 21, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/29244957/hypercementosis-associated-with-enpp1-mutations-and-gaci
#19
V Thumbigere-Math, A Alqadi, N I Chalmers, M B Chavez, E Y Chu, M T Collins, C R Ferreira, K FitzGerald, R I Gafni, W A Gahl, K S Hsu, M S Ramnitz, M J Somerman, S G Ziegler, B L Foster
Mineralization of bones and teeth is tightly regulated by levels of extracellular inorganic phosphate (Pi) and pyrophosphate (PPi). Three regulators that control pericellular concentrations of Pi and PPi include tissue-nonspecific alkaline phosphatase (TNAP), progressive ankylosis protein (ANK), and ectonucleotide pyrophosphatase/phosphodiesterase 1 (ENPP1). Inactivation of these factors results in mineralization disorders affecting teeth and their supporting structures. This study for the first time analyzed the effect of decreased PPi on dental development in individuals with generalized arterial calcification of infancy (GACI) due to loss-of-function mutations in the ENPP1 gene...
December 1, 2017: Journal of Dental Research
https://www.readbyqxmd.com/read/29240213/minimally-invasive-treatment-of-an-ankylosed-severely-discolored-and-intruded-central-incisor-with-a-masking-ceramic-veneer-a-clinical-report
#20
Anja Liebermann, Daniel Edelhoff, Otto Prandtner, Reza Saeidi Pour
Dental therapy of traumatically ankylosed maxillary anterior teeth with an additional slight root resorption represents a great challenge for the restorative team and requires intensive planning and communication between patient, dentist, orthodontist, periodontist, and dental technician. The inhibition of vertical growth often makes dental intervention indispensable. Porcelain laminate veneers have been successfully used for more than two decades, mainly on anterior teeth, and was the minimally invasive treatment option for the present case report...
January 2018: International Journal of Periodontics & Restorative Dentistry
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