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Alveolar resorption

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https://www.readbyqxmd.com/read/28643923/micro-anatomical-responses-in-periodontal-complexes-of-mice-to-calibrated-orthodontic-forces-on-the-crown
#1
A Pal, L Chen, L Yang, F Yang, B Meng, A H Jheon, S P Ho
OBJECTIVE: Correlating mechanical forces with quantifiable physical changes in the dentoalveolar complex. SETTING AND SAMPLE POPULATION: Male 6-week C57BL/6 mice (N=3), micro X-ray-computed tomography; post-analysis software to extract physical changes in periodontal ligament (PDL)-space. MATERIALS AND METHODS: Silicone-elastic bands were placed between maxillary molars for 1 week, with the contralateral side as internal control. Average displacements between crowns and roots, and changes in PDL-spaces were evaluated by registering X-ray tomograms of experimental and control hemi-maxillae...
June 2017: Orthodontics & Craniofacial Research
https://www.readbyqxmd.com/read/28634845/histomorphometric-and-immunohistochemical-evaluation-of-collagen-containing-xenogeneic-bone-blocks-used-for-lateral-bone-augmentation-in-staged-implant-placement
#2
Alberto Ortiz-Vigón, Sergio Martinez-Villa, Iñaki Suarez, Fabio Vignoletti, Mariano Sanz
BACKGROUND: The osteoconductive properties of collagen containing xenogeneic bone blocks (CCXBB) remain unclear. The aim of this prospective single-arm clinical study was to assess the histological outcomes of CCXBB blocks used as bone replacement grafts for lateral bone augmentation procedures. METHODS: In 15 patients with severe horizontal alveolar ridge resorption, lateral augmentation procedures were performed using CCXBB as bone replacement grafts. Twenty-six weeks postoperatively, a re-entry procedure was performed to evaluate the bone width for adequate implant placement and two histological specimens were retrieved from each patient, one being processed for ground sectioning and the other for decalcified paraffin-included sections...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28634415/force-induced-increased-osteogenesis-enables-accelerated-orthodontic-tooth-movement-in-ovariectomized-rats
#3
Qinggang Dai, Siru Zhou, Peng Zhang, Xuhui Ma, Nayong Ha, Xiao Yang, Zhifeng Yu, Bing Fang, Lingyong Jiang
As the number of elderly orthodontic patients increases, the impact of postmenopausal osteoporosis on orthodontic tooth movement (OTM) has attracted a great deal of attention because OTM relies on alveolar bone remodeling. The question of whether OTM causes subsequent alveolar bone loss and is harmful to alveolar bone health under osteoporotic conditions remains to be answered. The present study aimed to clarify the influences of OTM on alveolar bone in osteoporotic rats. OTM was accelerated in ovariectomized (OVX) rats as a result of increased bone resorption in the pressure area...
June 20, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28617966/analysis-of-the-association-of-clinical-factors-and-il4-gene-polymorphisms-with-root-resorption-in-avulsed-teeth-after-1-year-of-replantation
#4
L Roskamp, P C Trevilatto, C M Souza, U X Silva Neto, E Carneiro, L F Fariniuk, V P D Westphalen
AIM: To investigate the association of clinical variables and polymorphisms (tag SNPs) in the interleukin 4 (IL4) gene, with the prognosis of avulsed and replanted teeth. METHODOLOGY: Ninety-four patients who suffered avulsion and had their teeth replanted and endodontically treated were included. Periapical radiographs were obtained soon after tooth replantation and after 1 year. For genotypic IL4 gene analysis, the DNA of the oral mucosa cells was collected, and polymorphisms investigated by Real Time-PCR...
June 15, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28612428/outcomes-and-prognostic-factors-that-influence-the-success-of-tooth-autotransplantation-in-children-and-adolescents
#5
Vasiliki Kafourou, Huei Jinn Tong, Peter Day, Nadine Houghton, R James Spencer, Monty Duggal
BACKGROUND/AIM: Tooth autotransplantation has been advocated for replacement of missing teeth, or teeth that are unsuitable for restoration. The aim of this study was to investigate the outcomes and prognostic factors that influenced the success of tooth transplantation in a paediatric population. MATERIALS AND METHODS: Data was extracted from the records of 75 patients (89 teeth). Demographic and prognostic factors were recorded and analyzed for the clinical and radiographic outcomes for periodontal ligament (PDL) and pulp healing of transplanted teeth...
June 14, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28609508/evaluation-of-the-bone-regenerating-effects-of-two-anorganic-bovine-bone-grafts-in-a-critical-sized-alveolar-ridge-defect-model
#6
David M Kim, Heather Hong, Jerry Ching-Yi Lin, Myron Nevins
A preclinical trial was conducted to treat 54 mandibular critical-sized alveolar ridge defects in 27 canines. Each hemimandible was randomized to be treated with two different anorganic bovine bone grafts (group A = InterOss [SigmaGraft]; group B = Bio-Oss [Geistlich]) or negative control (group C = empty defect) followed by a 4-, 8-, or 12-week observation period. Microcomputed tomography, histology, histopathology, and histomorphometric analyses were performed to evaluate the safety and efficacy of these treatments...
July 2017: International Journal of Periodontics & Restorative Dentistry
https://www.readbyqxmd.com/read/28606827/a-new-method-of-volumetric-assessment-of-alveolar-bone-grafting-for-cleft-patients-using-cone-beam-computed-tomography
#7
Bin Feng, Meng Jiang, Xue Xu, Jingtao Li
OBJECTIVE: The aims of this study were to propose a new method for volumetric assessment of alveolar bone grafting and to quantitatively assess alveolar bone grafting based on this method. STUDY DESIGN: Cone beam computed tomography images of 18 patients with unilateral cleft alveolus were selected. Volume of the alveolar cleft before grafting operation (VOLcleft), graft bone filled into cleft immediately after operation (VOLgraft), and bony bridge formed 1 year after operation (VOLbridge) were obtained...
April 19, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28597838/-collaboration-between-periodontics-and-orthodontics-interest-of-alveolar-corticotomies-and-piezocision-review-of-literature
#8
Brenda Mertens, Charles Angioni, Valérie Orti, Pierre Canal
INTRODUCTION: Orthodontics in adults must adapt to certain particularities especially related to the decrease or absence of growth and the prevalence of periodontal damage in this population. This review of the literature aims to assess the effects of alveolar corticotomies on accelerating or facilitating tooth movements in different types of orthodontic movements, to compare results obtained by classical technique with those obtained by piezocision and analyze their impact on periodontal tissues in the long term...
June 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/28597837/-effectiveness-of-selective-alveolar-decortication-in-accelerating-orthodontic-treatment-a-systematic-review
#9
Victor Fau, Dany Diep, Gérard Bader, Damien Brézulier, Olivier Sorel
INTRODUCTION: The number of scientific publications on accelerating orthodontic treatment, and especially surgical alveolar corticotomies techniques, has grown exponentially over the years. The objective of this systematic literature review was to assess the effectiveness of these corticotomies basing on human studies. MATERIAL AND METHOD: The review was conducted from Medline and Web of Science Core Collection to identify prospective controlled clinical trials with duration of orthodontic treatment or the tooth movement rate for primary endpoint...
June 2017: L' Orthodontie Française
https://www.readbyqxmd.com/read/28596739/rank-rankl-opg-signalization-implication-in-periodontitis-new-evidence-from-a-rank-transgenic-mouse-model
#10
Bouchra Sojod, Danielle Chateau, Christopher G Mueller, Sylvie Babajko, Ariane Berdal, Frédéric Lézot, Beatriz Castaneda
Periodontitis is based on a complex inflammatory over-response combined with possible genetic predisposition factors. The RANKL/RANK/OPG signaling pathway is implicated in bone resorption through its key function in osteoclast differentiation and activation, as well as in the inflammatory response. This central element of osteo-immunology has been suggested to be perturbed in several diseases, including periodontitis, as it is a predisposing factor for this disease. The aim of the present study was to validate this hypothesis using a transgenic mouse line, which over-expresses RANK (R(Tg)) and develops a periodontitis-like phenotype at 5 months of age...
2017: Frontiers in Physiology
https://www.readbyqxmd.com/read/28573552/autogenous-bone-grafts-in-oral-implantology-is-it-still-a-gold-standard-a-consecutive-review-of-279-patients-with-456-clinical-procedures
#11
Andreas Sakkas, Frank Wilde, Marcus Heufelder, Karsten Winter, Alexander Schramm
BACKGROUND: This study assessed the clinical outcomes of graft success rate and early implant survival rate after preprosthetic alveolar ridge reconstruction with autologous bone grafts. METHODS: A consecutive retrospective study was conducted on all patients who were treated at the military outpatient clinic of the Department of Oral and Plastic Maxillofacial Surgery at the military hospital in Ulm (Germany) in the years of 2009 until 2011 with autologous bone transplantation prior to secondary implant insertion...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28573052/decoronation-an-alternative-treatment-for-replacement-root-resorption
#12
Marianne Sala, Asunción Mendoza-Mendoza, Rosa-María Yañez-Vico
INTRODUCTION: Ankylosis and disrupted or altered root development are frequent complications associated with intrusive luxation and tooth avulsion lesions. Various forms of treatment have been described according to the severity of the trauma and root development. The literature shows that decoronation is an ideal treatment in cases where replacement resorption occurs. METHODS: Two clinical cases are presented: involving intrusive luxation [15-year-old female patient with an affected maxillary left lateral incisor (2...
2017: Case Reports in Dentistry
https://www.readbyqxmd.com/read/28571293/management-of-severely-atrophic-mandibular-ridge-using-hollow-denture-with-an-analytical-discussion-a-clinical-case-report
#13
Rupal Jaydip Shah, Sanjay Balaji Lagdive, Satyaprakash Ranjit Shah, Vishal Bipinbihari Verma, Shraddha Lalit Saini
A severely resorbed edentulous mandibular ridge, although fairly common in occurrence, its rehabilitation poses a challenging clinical situation for the prosthodontist. This has implored prosthodontists to seek for ingenious modifications in the conventional prosthetic forms so as to gratify patient's expectations who have difficulty in wearing the mandibular complete dentures. Opting for the most suitable treatment modality mandates equilibrating the retention, stability and support triad to the fullest. Extreme resorption of the denture bearing tissue bed may lead to problems with achieving adequate levels of prosthetic satisfaction for the patient...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28570825/effects-of-cinnamoyloxy-mammeisin-from-geopropolis-on-osteoclast-differentiation-and-porphyromonas-gingivalis-induced-periodontitis
#14
Marcos Guilherme da Cunha, Erivan Schnaider Ramos-Junior, Marcelo Franchin, Thaise Mayumi Taira, John A Beutler, Gilson Cesar Nobre Franco, Masaharu Ikegaki, Severino Matias de Alencar, Sandra Yasuyo Fukada, Pedro Luiz Rosalen
Bone-loss-related diseases such as rheumatoid arthritis, osteomyelitis, osteoporosis, and periodontitis are associated with high rates of morbidity worldwide. These disorders are characterized by an imbalance between the formation and activity of osteoblasts and osteoclasts, leading to bone loss. In this context, we evaluated the effect of cinnamoyloxy-mammeisin (CNM), an anti-inflammatory coumarin found in Melipona scutellaris geopropolis, on key targets related to bone remodeling. In the present study we investigated the in vitro effects of CNM on osteoclast differentiation and M-CSF+RANKL-induced osteoclastogenic marker expression...
June 1, 2017: Journal of Natural Products
https://www.readbyqxmd.com/read/28556452/dimensional-alterations-following-vertical-ridge-augmentation-using-collagen-membrane-and-three-types-of-bone-grafting-materials-a-retrospective-observational-study
#15
Yun-Ho Park, Seong-Ho Choi, Kyoo-Sung Cho, Jung-Seok Lee
BACKGROUND: Various biomaterials have been introduced for vertical ridge augmentation to replace autogenous block bone grafting. PURPOSE: This retrospective study radiographically evaluated dimensional alterations of the vertically augmented alveolar ridge using collagen membrane and 3 types of materials: autogenous bone block, allogenous bone block, and particulated bone substitute. MATERIALS AND METHODS: The electronic medical records of 32 patients who received vertical ridge augmentation using 3 types of materials were searched: 9 for autogenous bone block, 12 for allogenous bone block, and 11 for particulated bone substitutes...
May 29, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28555199/multidisciplinary-approach-for-replacement-%C3%A2-root-resorption-following-severe-intrusive-luxation-%C3%A2-a-case-report-of-decoronation
#16
Thiago Farias Rocha Lima, Julio Vargas Neto, Renato Corrêa Vianna Casarin, Maíra Prado, Brenda Paula Figueiredo de Gomes, José Flávio Affonso de Almeida, Alexandre Augusto Zaia, Adriana de Jesus Soares
Intrusive luxation is a severe trauma-related event with a high frequency of pulp necrosis and root resorption. A common complication following intrusion is tooth ankylosis, which can extend to progressive replacement root resorption. An increasing infraposition in growing individuals can also occur. Decoronation is a new conservative treatment for cases of tooth ankylosis in young patients who have not finished growing. In this surgical technique, the tooth crown is removed and the root with replacement resorption process remains inside the alveolus...
2017: Quintessence International
https://www.readbyqxmd.com/read/28553857/the-position-of-the-mental-foramen-in-dentate-and-edentulous-mandibles-clinical-and-surgical-relevance
#17
Antonios Charalampakis, Georgios Kourkoumelis, Christina Psari, Vassilios Antoniou, Maria Piagkou, Theano Demesticha, Evangelos Kotsiomitis, Theodore Troupis
BACKGROUND: The knowledge of the exact location of the mental foramen (MF) in dentate and edentulous mandibles is clinically important when constructing complete dentures, performing anaesthetic block of the lower-anterior teeth area and intervening in the MF nearby area. In edentulous mandibles, the bone resorption after teeth loss makes the mental nerve (MN) prone to damage due to the extreme location of the MF very close to the alveolar crest (AC). Chronic compression on the MN may result in pain in the area of MN distribution (ipsilateral face and cheek area) and numbness at the lower lip...
May 29, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/28542468/alveoli-teeth-and-tooth-loss-understanding-the-homology-of-internal-mandibular-structures-in-mysticete-cetaceans
#18
Carlos Mauricio Peredo, Nicholas D Pyenson, Mark D Uhen, Christopher D Marshall
The evolution of filter feeding in baleen whales (Mysticeti) facilitated a wide range of ecological diversity and extreme gigantism. The innovation of filter feeding evolved in a shift from a mineralized upper and lower dentition in stem mysticetes to keratinous baleen plates that hang only from the roof of the mouth in extant species, which are all edentulous as adults. While all extant mysticetes are born with a mandible lacking a specialized feeding structure (i.e., baleen), the bony surface retains small foramina with elongated sulci that often merge together in what has been termed the alveolar gutter...
2017: PloS One
https://www.readbyqxmd.com/read/28534138/a-chemically-modified-curcumin-cmc-2-24-inhibits-nuclear-factor-%C3%AE%C2%BAb-activation-and-inflammatory-bone-loss-in-murine-models-of-lps-induced-experimental-periodontitis-and-diabetes-associated-natural-periodontitis
#19
Muna S Elburki, Carlos Rossa, Morgana R Guimarães-Stabili, Hsi-Ming Lee, Fabiana A Curylofo-Zotti, Francis Johnson, Lorne M Golub
The purpose of this study was to assess the effect of a novel chemically modified curcumin (CMC 2.24) on NF-κB and MAPK signaling and inflammatory cytokine production in two experimental models of periodontal disease in rats. Experimental model I: Periodontitis was induced by repeated injections of LPS into the gingiva (3×/week, 3 weeks); control rats received vehicle injections. CMC 2.24, or the vehicle, was administered by daily oral gavage for 4 weeks. Experimental model II: Diabetes was induced in adult male rats by streptozotocin injection; periodontal breakdown then results as a complication of uncontrolled hyperglycemia...
May 22, 2017: Inflammation
https://www.readbyqxmd.com/read/28533736/telescopic-overdenture-a-case-report
#20
C S Shruthi, R Poojya, Swati Ram, Anupama
PATIENT: This report describes the case of a 68 year old female patient who presented with the chief complaint of difficulty in chewing and poor aesthetics due to missing teeth. The patient was interested in saving the remaining natural teeth and desired minimal tissue coverage from the prosthesis. After consideration of all the factors involved, it was deemed advisable to resort to a palate free maxillary telescopic complete denture and a mandibular removable partial denture. DISCUSSION: Considering the age of the patient and the cost involved, implant supported prosthesis was ruled out as a treatment option for the patient...
March 2017: International Journal of Biomedical Science: IJBS
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