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Alveolar resorption

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https://www.readbyqxmd.com/read/29333785/-decoronation-management-of-the-replacement-resorption-after-delayed-replantation-of-avulsed-teeth-case-report-with-4-year-follow-up
#1
Fang Ruizhen, Li Siyi, Gao Lei, Wu Li'an
Replacement resorption is the most frequent complication after delayed replantation of avulsed teeth. The resorption can interfere with the development of the alveolar ridge and lead to tilt of the adjacent teeth in growing patients. However, there is no means of arresting or reversing the process. Recently decoronation is recommended by International Assocaition of Dental Traumatology as the optimal choice to manage it. This paper demonstrates the procedure and effectiveness of the decoronation by literature review and a case report with 4-year follow-up...
December 1, 2017: Hua Xi Kou Qiang Yi Xue za Zhi, Huaxi Kouqiang Yixue Zazhi, West China Journal of Stomatology
https://www.readbyqxmd.com/read/29333593/control-of-anterior-segment-using-an-antero-posterior-lingual-sliding-retraction-system-a-preliminary-cone-beam-ct-study
#2
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/29333324/ridge-preservation-using-basic-fibroblast-growth-factor-2-and-collagenated-biphasic-calcium-phosphate-in-beagle-dogs
#3
Byungjin Sohn, Minkyoon Hwang, Sungtae Kim, Hyeong-Il Kim, Young Ku
Purpose: The aim of this study was to evaluate volumetric and histologic changes in edentulous alveolar ridge areas after ridge preservation using basic fibroblast growth factor-2 (bFGF-2) in combination with collagenated biphasic calcium phosphate (BCP). Methods: The experiments were performed in 6 adult male beagle dogs. The following 3 groups were created: 1) ridge preservation with bFGF-2 and collagenated BCP (experimental group), 2) ridge preservation with collagenated BCP (positive control group), and 3) a negative control group in which no ridge preservation procedure was performed...
December 2017: Journal of Periodontal & Implant Science
https://www.readbyqxmd.com/read/29321271/incremental-distribution-of-strontium-and-zinc-in-great-ape-and-fossil-hominin-cementum-using-synchrotron-x-ray-fluorescence-mapping
#4
Christopher Dean, Adeline Le Cabec, Kathryn Spiers, Yi Zhang, Jan Garrevoet
Cementum and the incremental markings it contains have been widely studied as a means of ageing animals and retrieving information about diet and nutrition. The distribution of trace elements in great ape and fossil hominin cementum has not been studied previously. Synchrotron X-ray fluorescence (SXRF) enables rapid scanning of large tissue areas with high resolution of elemental distributions. First, we used SXRF to map calcium, phosphorus, strontium and zinc distributions in great ape dentine and cementum...
January 2018: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/29319546/influence-of-the-presence-of-alveolar-mucosa-at-implants-a-histological-study-in-humans
#5
Yasushi Nakajima, Adriano Piattelli, Giovanna Iezzi, Natalia Fortich Mesa, Mauro Ferri, Daniele Botticelli
OBJECTIVE: To evaluate the influence of the presence or absence of keratinized mucosa on hard and soft tissues around implants. MATERIAL AND METHODS: Sixteen volunteers with edentulous regions in the distal aspect of the mandible participated in the study. In each patient, 2 solid titanium screw-shaped devices, 3.5 mm in diameter and 5 mm long, were installed. The incision of the mucosa was performed in such a way to allow that, after the suture of the flaps, only the alveolar mucosa surround the test sites and the keratinized mucosa surround the control implants...
January 9, 2018: Implant Dentistry
https://www.readbyqxmd.com/read/29306777/the-alveolar-bone-protective-effects-of-natural-products-a-systematic-review
#6
REVIEW
Irlan Almeida Freires, Gustavo Machado Santaella, Janaina de Cássia Orlandi Sardi, Pedro Luiz Rosalen
OBJECTIVES: This systematic review was carried out to identify which naturally-occurring agents and constituents isolated therefrom have effects in preventing bone loss in a ligature-induced periodontitis model. MATERIALS AND METHODS: Eight databases were systematically searched for studies of experimental periodontitis. The data were extracted, analyzed, and the treatment outcomes were given scores based on the level of bone destruction as compared to their untreated induced-periodontitis control...
December 27, 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/29303859/three-dimensional-radiological-assessment-of-alveolar-bone-volume-preservation-using-bovine-bone-xenograft
#7
Ali Al Qabbani, Sausan Al Kawas, Noor Hayati A Razak, Saad Wahby Al Bayatti, Hamid Hammad Enezei, A Rani Samsudin, Suzina Sheikh Ab Hamid
INTRODUCTION: Alveolar bone is critical in supporting natural teeth, dental implants as well as a removable and fixed prosthesis. Alveolar bone volume diminishes when its associated natural tooth is lost. OBJECTIVE: The aim of this study is to evaluate the effectiveness of bovine bone granules on alveolar bone socket augmentation for ridge preservation following atraumatic tooth extraction. MATERIALS AND METHODS: Twenty medically fit patients (12 males and 8 females aged between 18 and 40 years) who needed noncomplicated tooth extraction of 1 mandibular premolar tooth were divided randomly and equally into 2 groups...
January 4, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29302589/evaluation-of-bone-healing-using-rhbmp-2-soaked-hydroxyapatite-in-ridge-augmentation-a-prospective-observational-study
#8
Hyun-Suk Kim, Ju-Cheol Park, Pil-Young Yun, Young-Kyun Kim
Background: The goal of this study is to evaluate complication and effectiveness of alveolar ridge augmentations using a hydroxyapatite-based alloplastic bony substitute with rhBMP-2. Methods: A total of 10 patients (4 males, 6 females; 58.5 ± 8.6 years) participated in this clinical research. Alveolar ridge augmentations were performed in edentulous (4 maxillary posterior, 5 mandibular posterior, and 1 mandibular anterior) regions. Anorganic bovine bone (ABB; Bio-Oss®, Geistlich Pharma AG, Wolhusen, Switzerland) was used as the bone graft material in the control group (n = 5)) while hydroxyapatite-based alloplastic bony substitute with rhBMP-2(HA+rhBMP-2; NOVOSIS®-Dent, CGBio Inc...
December 2017: Maxillofacial Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29288400/anti-inflammatory-and-antiresorptive-effects-of-calendula-officinalis-on-inflammatory-bone-loss-in-rats
#9
Joanna Trycia M Alexandre, Luzia Hermínia Teixeira Sousa, Mario Roberto Pontes Lisboa, Flávia A C Furlaneto, Danielle Rocha do Val, Mirna Marques, Hellíada C Vasconcelos, Iracema Matos de Melo, Renata Leitão, Gerly Anne Castro Brito, Paula Goes
OBJECTIVE: The aim of this work was to evaluate the anti-inflammatory and antiresorptive effects of Calendula officinalis (CLO) on alveolar bone loss (ABL) in rats. MATERIAL AND METHODS: Male Wistar rats were subjected to ABL by ligature with nylon thread around the second upper left molar. The contralateral hemimaxillae were used as control. Rats received saline solution (SAL) or CLO (10, 30, or 90 mg/kg) 30 min before ligature and daily until the 11th day. The maxillae were removed and prepared for macroscopic, radiographic, micro-tomographic, histopathologic, histometric analysis, and immunohistochemical localization of receptor activator of nuclear factor kappa-B ligand (RANKL) and osteoprotegerin (OPG)...
December 29, 2017: Clinical Oral Investigations
https://www.readbyqxmd.com/read/29287702/scutellaria-baicalensis-ameliorates-the-destruction-of-periodontal-ligament-via-inhibition-of-inflammatory-cytokine-expression
#10
Mi Hye Kim, Haesu Lee, You Yeon Choi, Dae Hoon Lee, Woong Mo Yang
BACKGROUND: Scutellaria baicalensis (SB) is widely used as a medicinal plant to treat various inflammatory diseases. In the present study, we investigated the effects of SB on periodontitis in ligature-induced experimental rat model. METHODS: Rats were subjected to a ligature placement around the first molar of the mandible to induce periodontitis. 100 mg/kg SB extracts were orally administered for 14 days. The molar tissues were stained with 1% methylene blue...
December 26, 2017: Journal of the Chinese Medical Association: JCMA
https://www.readbyqxmd.com/read/29285093/application-of-interconnected-porous-hydroxyapatite-ceramic-block-for-onlay-block-bone-grafting-in-implant-treatment-a-case-report
#11
Kouji Ohta, Misato Tada, Yoshiaki Ninomiya, Hiroki Kato, Fumi Ishida, Hitoshi Abekura, Kazuhiro Tsuga, Masaaki Takechi
Autogenous block bone grafting as treatment for alveolar ridge atrophy has various disadvantages, including a limited availability of sufficiently sized and shaped grafts, donor site morbidity and resorption of the grafted bone. As a result, interconnected porous hydroxyapatite ceramic (IP-CHA) materials with high porosity have been developed and used successfully in orthopedic cases. To the best of the author's knowledge, this is the first report of clinical application of an IP-CHA block for onlay grafting for implant treatment in a patient with horizontal alveolar atrophy...
December 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/29284960/assessment-of-regeneration-of-bone-in-the-extracted-third-molar-sockets-augmented-using-xenograft-collaplugtn-zimmer-in-comparison-with-the-normal-healing-on-the-contralateral-side
#12
Murugan Ranganathan, M Balaji, R Krishnaraj, Vivek Narayanan, Annamalai Thangavelu
Introduction: Alveolar bone resorption is a significant clinical problem. Bone loss in third molar region following extraction or surgical removal not only leads to periodontal problems in second molar region but also it may lead to some serious problems like increased incidence of angle fractures. In order to reduce the risks following third molar surgery, the socket should be augmented with bone grafts. In recent days guided tissue regeneration is the most accepted and successful technique followed many authors and its efficacy has been proved...
November 2017: Journal of Pharmacy & Bioallied Sciences
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/29279573/effect-of-local-bone-marrow-stromal-cell-administration-on-ligature-induced-periodontitis-in-mice
#15
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/29275568/-effects-of-t-helper-1-cells-and-t-helper-17-cells-secreting-cytokines-on-rat-models-of-experimental-periodontitis
#16
Z X Wang, L Yang, J Y Tan, L L Chen
Objectvie: To investigate the effects of secreting cytokines interferon-gamma (IFN-γ) and interleukin-17 (IL-17) of T helper 1 cells (Th1) and T helper 17 cells (Th17) on the peripheral blood and alveolar bone destruction, so as to provide a new explanation for cellular immunity-mediated alveolar bone destruction. Methods: Eighteen eight-week-old male Sprague-Dawley rats were divided, randomly and equally, into 3 groups: lipopolysaccharide (LPS) group, ligation group and normal control group. In the LPS group, Escherichia coli LPS was injected into the alveolar mucosa on the buccalmedian site of the left upper first molar, while the right upper first molar was injected with equal volume of physiological saline as self-controls...
December 9, 2017: Zhonghua Kou Qiang Yi Xue za Zhi, Zhonghua Kouqiang Yixue Zazhi, Chinese Journal of Stomatology
https://www.readbyqxmd.com/read/29274168/prophylactic-supplement-with-melatonin-successfully-suppresses-the-pathogenesis-of-periodontitis-through-normalizing-rankl-opg-ratio-and-depressing-the-tlr4-myd88-signaling-pathway
#17
Ting-Yi Renn, Yung-Kai Huang, Sheng-Wei Feng, Hsiao-Wei Wang, Wei-Fang Lee, Che-Tong Lin, Thierry Burnouf, Li-You Chen, Pan-Fu Kao, Hung-Ming Chang
Periodontitis (PD) is an inflammatory disease characterized by gingival inflammation and resorption of alveolar bone. Impaired receptor activator of nuclear factor-kappa B ligand/osteoprotegerin (RANKL/OPG) signaling caused by enhanced production of pro-inflammatory cytokines plays an essential role in the pathogenesis of PD. Considering melatonin possesses significant anti-inflammatory property, this study aimed to determine whether prophylactic treatment with melatonin would effectively normalize RANKL/OPG signaling, depress toll-like receptor 4/myeloid differentiation factor 88 (TLR4/MyD88)-mediated pro-inflammatory cytokine activation, and successfully suppress the pathogenesis of PD...
December 23, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/29243183/effects-of-experimental-periodontitis-on-the-metabolic-system-in-rats-with-diet-induced-obesity-dio-an-analysis-of-serum-biochemical-parameters
#18
Ryutaro Kuraji, Miyako Fujita, Hiroshi Ito, Shuichi Hashimoto, Yukihiro Numabe
Recent studies have shown that periodontitis accelerates the progression of obesity-associated metabolic diseases. Thus, we examined the influence of periodontitis on serum biochemical parameters of metabolic disease in a diet-induced obesity (DIO) rat. First, we established the DIO model using ten male rats fed with either basal diet (lean group) or high-fat diet (DIO group) for 12 weeks. Second, to examine the interaction between periodontitis and obesity, we divided 24 DIO rats into the following four groups...
December 14, 2017: Odontology
https://www.readbyqxmd.com/read/29241945/micro-computed-tomography-for-evaluating-alveolar-bone-resorption-induced-by-hyperocclusion
#19
Takashi Tsutsumi, Hiroshi Kajiya, Takashi Tsuzuki, Kazuko T Goto, Koji Okabe, Yutaka Takahashi
PURPOSE: Occlusal trauma, resulting in the destruction of alveolar bone, is a form of periodontal disease caused by excessive mechanical stress (MS) during hyperocclusion. Previously, we showed that CC chemokine ligand (CCL) 2/CCR2 receptor axis plays a crucial role in MS-dependent osteoclastogenesis. However, in the previous work, we were unable to precisely measure changes in alveolar bone profiles. In the present study, we sought to establish a precise method for evaluating alveolar bone resorption induced by hyperocclusion using micro-computed tomography...
December 11, 2017: Journal of Prosthodontic Research
https://www.readbyqxmd.com/read/29226083/effects-of-o-methylated-epigallocatechin-gallate-egcg-on-lps-induced-osteoclastogenesis-bone-resorption-and-alveolar-bone-loss-in-mice
#20
Tsukasa Tominari, Ryota Ichimaru, Shosei Yoshinouchi, Chiho Matsumoto, Kenta Watanabe, Michiko Hirata, Florian M W Grundler, Masaki Inada, Chisato Miyaura
(-)-Epigallocatechin-3-O-gallate (EGCG), present in green tea, exhibits antioxidant and antiallergy effects. EGCG3″Me, a 3-O-methylated derivative of EGCG, has been reported to show similar biological functions; the inhibitory activity of EGCG3″Me in a mouse allergy model was more potent than that of EGCG, probably due to the efficiency of absorption from the intestine. However, the functional potency of these EGCGs is controversial in each disease model. We previously observed that EGCG suppressed inflammatory bone resorption and prevented alveolar bone loss in a mouse model of periodontosis...
December 2017: FEBS Open Bio
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