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Root resorption

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https://www.readbyqxmd.com/read/28429956/efficacy-of-piezocision-on-accelerating-orthodontic-tooth-movement-a-systematic-review
#1
Jianru Yi, Jiani Xiao, Yu Li, Xiaobing Li, Zhihe Zhao
OBJECTIVES: The aim of this systematic review was to evaluate the effect of piezocision as an adjunctive procedure to accelerate orthodontic tooth movement. MATERIALS AND METHODS: Randomized controlled trials and controlled clinical trials that investigated the effectiveness of piezocision on accelerating orthodontic tooth movement were identified through electronic and manual searches. The literature search, study inclusion, risk of bias assessment, and data extraction were performed by two reviewers independently...
April 21, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28429484/interaction-between-endodontics-and-periodontics
#2
REVIEW
Ilan Rotstein
Endodontic-periodontal lesions present challenges to the clinician regarding diagnosis, treatment planning and prognosis. Etiologic factors, such as bacteria and viruses, as well as contributing factors, such as trauma, root resorptions, perforations, cracks and dental malformations, play an important role in the development and progression of such lesions. Treatment and prognosis of endodontic-periodontal lesions vary, depending on the etiology, pathogenesis and correct diagnosis of each specific condition...
June 2017: Periodontology 2000
https://www.readbyqxmd.com/read/28427342/intermittent-parathyroid-hormone-pth-promotes-cementogenesis-and-alleviates-the-catabolic-effects-of-mechanical-strain-in-cementoblasts
#3
Yuyu Li, Zhiai Hu, Chenchen Zhou, Yang Xu, Li Huang, Xin Wang, Shujuan Zou
BACKGROUND: External root resorption, commonly starting from cementum, is a severe side effect of orthodontic treatment. In this pathological process and repairing course followed, cementoblasts play a significant role. Previous studies implicated that parathyroid hormone (PTH) could act on committed osteoblast precursors to promote differentiation, and inhibit apoptosis. But little was known about the role of PTH in cementoblasts. The purpose of this study was to investigate the effects of intermittent PTH on cementoblasts and its influence after mechanical strain treatment...
April 20, 2017: BMC Cell Biology
https://www.readbyqxmd.com/read/28418701/cementogenesis-is-inhibited-under-a-mechanical-static-compressive-force-via-piezo1
#4
Ying-Ying Zhang, Yi-Ping Huang, Hua-Xiang Zhao, Ting Zhang, Feng Chen, Yan Liu
OBJECTIVE: To investigate whether Piezo1, a mechanotransduction gene mediates the cementogenic activity of cementoblasts under a static mechanical compressive force. MATERIALS AND METHODS: Murine cementoblasts (OCCM-30) were exposed to a 2.0 g/cm(2) static compressive force for 3, 6, 12, and 24 hours. Then the expression profile of Piezo1 and the cementogenic activity markers osteoprotegerin (Opg), osteopontin (Opn), osteocalcin (Oc), and protein tyrosine phosphataselike member A (Ptpla) were analyzed...
April 18, 2017: Angle Orthodontist
https://www.readbyqxmd.com/read/28412234/premolar-autotransplantation-in-juvenile-dentition-quantitative-assessment-of-vertical-bone-and-soft-tissue-growth
#5
Inessa Michl, Dirk Nolte, Claudia Tschammler, Martin Kunkel, Robert Linsenmann, Johannes Angermair
OBJECTIVE: Premolar autotransplantation represents an effective therapeutic option for the treatment of juvenile dentition with either aquired or congenital hypodontia. The objective of this prospective clinical study was to quantitatively assess bone and soft tissue levels after autogenous premolar transplantation by clinical and radiographic parameters. STUDY DESIGN: In the study, 26 premolars were transplanted in 20 patients after traumatic tooth loss (n = 16) or congenital aplasia (n = 10) in the anterior maxilla...
February 22, 2017: Oral Surgery, Oral Medicine, Oral Pathology and Oral Radiology
https://www.readbyqxmd.com/read/28398648/esthetic-rehabilitation-of-retained-primary-teeth-a-conservative-approach
#6
Cristina Parise Gré, Vitor Schweigert Bona, Diogo Pedrollo Lise, Sylvio Monteiro Júnior
With the advancement in ceramic restorations bonded to tooth structure, the treatment has become a feasible and conservative option to restore teeth with alteration in shape when owing to high demand in esthetics, with or without minimum tooth preparation. This article describes a report of a 32-year-old woman who was dissatisfied with her smile. The patient reported that she still had deciduous teeth, and that the maxillary lateral incisors had been restored with direct resin composite to correct the teeth shape...
April 11, 2017: Journal of Prosthodontics: Official Journal of the American College of Prosthodontists
https://www.readbyqxmd.com/read/28392897/the-effect-of-caffeine-on-orthodontic-tooth-movement-in-rats
#7
Mohsen Shirazi, Hamed Vaziri, Behzad Salari, Pouria Motahhari, Shahroo Etemad-Moghadam, Ahmad Reza Dehpour
OBJECTIVES: to determine the effect of different doses of caffeine on orthodontic tooth movement (OTM) in rats. MATERIALS AND METHODS: Forty male 250-300 g Sprague-Dawley rats were randomly divided into four groups of ten animals each and received 0 (control), 1 g/l, 2 g/l and 3 g/l caffeine in tap water for 3 days. Orthodontic appliances were ligated between the maxillary first molars and incisors on the 4th day of the study period. All rats were sacrificed after 2 weeks of treatment after which OTM was measured...
March 2017: Iranian Journal of Basic Medical Sciences
https://www.readbyqxmd.com/read/28389068/bone-mineral-density-measurements-around-osseointegrated-implants-a-precision-study-and-validation-of-scan-protocol-for-transfemoral-amputees
#8
Rehne Lessmann Hansen, Bente Lomholt Langdahl, Peter Holmberg Jørgensen, Klaus Kjær Petersen, Kjeld Søballe, Maiken Stilling
Visual evaluation of bone changes around an osseointegration (OI) implant in femoral amputees examined on plain radiographs shows that periprosthetic bone resorption takes place during the first years after OI surgery, but the bone mineral density (BMD) change has not been previously quantified by dual-energy X-ray absorptiometry (DXA). Precision is vital when monitoring BMD changes around implants, and thus the aim of this study was to evaluate the precision and feasibility of a scan protocol for BMD measurements in proximity of OI implants...
April 4, 2017: Journal of Clinical Densitometry
https://www.readbyqxmd.com/read/28388395/surgical-uprighting-is-a-successful-procedure-for-management-of-impacted-mandibular-second-molars
#9
Bonnie L Padwa, Rushil R Dang, Cory M Resnick
PURPOSE: Impacted mandibular second molars can cause caries and root resorption on adjacent molars and can lengthen orthodontic treatment. Surgical uprighting is one management option. The purposes of this study were to 1) evaluate radiographic outcomes for surgical uprighting of impacted mandibular second molars and 2) propose an etiology for impaction. MATERIALS AND METHODS: This was a retrospective cohort study of patients who had surgical uprighting of mandibular second molars and had preoperative and at least 12-month postoperative panoramic images and an age- and gender-matched control group of patients undergoing routine orthodontic treatment...
March 14, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28377652/a-comparative-evaluation-of-accuracy-of-new-generation-electronic-apex-locator-with-conventional-radiography-to-determine-working-length-in-primary-teeth-an-in-vivo-study
#10
K Vidya Bhat, Prakashchandra Shetty, Latha Anandakrishna
AIMS: The purpose of this study was to evaluate the accuracy of a new-generation electronic apex locator (iPex) to determine working length in primary teeth with or without root resorption as compared with the conventional radiographic method. MATERIALS AND METHODS: A sample of 30 primary posterior teeth which are indicated for pulpectomy were selected for the study. After obtaining the informed consent from the parents, local anesthesia was administered. Access cavity was prepared with no...
January 2017: International Journal of Clinical Pediatric Dentistry
https://www.readbyqxmd.com/read/28371361/-identification-of-salivary-protein-biomarkers-for-orthodontically-induced-inflammatory-root-resorption
#11
Karolina Elżbieta Kaczor-Urbanowicz, Omer Deutsch, Batia Zaks, Guy Krief, Stella Chaushu, Aaron Palmon
INTRODUCTION: Orthodontically induced inflammatory root resorption (OIIRR) is one of the most prevalent and unavoidable consequence of orthodontic tooth movement. The aim of this study was to discover potential diagnostic protein biomarkers for detection of OIIRR in whole saliva (WS). METHODS AND MATERIAL: Unstimulated WS was collected from 72 subjects: 48 OIIRR patients and 24 untreated, generally healthy, age and gender matched controls. Radiographic assessment of periapical X-Rays of 4 upper incisors taken before and 9 months after bonding was done...
March 29, 2017: Proteomics. Clinical Applications
https://www.readbyqxmd.com/read/28371334/the-risk-of-healing-complications-in-primary-teeth-with-concussion-and-subluxation-injury-a-retrospective-cohort-study
#12
Eva Lauridsen, Paul Blanche, Catherina Amaloo, Jens Ove Andreasen
BACKGROUND/AIM: Traumatic dental injuries (TDIs) in the primary dentition occur frequently. Long term complications may potentially cause damage to the permanent successor. The aim of this study was to report the risk of pulp necrosis (PN), pulp canal obliteration (PCO), repair related resorption (RRR), infection-related resorption (IRR), ankylosis-related resorption (ARR) and premature tooth loss (PTL) in primary teeth following concussion and subluxation injuries, and to identify possible risk factors for PN, PCO and PTL following subluxation...
March 28, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28364894/apical-root-resorption-due-to-mandibular-first-molar-mesialization-a-split-mouth-study
#13
Jonas Winkler, Nicolas Göllner, Peter Göllner, Pawel Pazera, Nikolaos Gkantidis
INTRODUCTION: Our aim was to evaluate the risk of external apical root resorption (EARR) in mesialized mandibular molars due to space closure in patients with unilateral second premolar agenesis. The contralateral side served as the control. METHODS: After application of eligibility criteria, 25 retrospectively selected subjects (median age, 14.9 years; range, 12.0-31.9 years) were analyzed. Space closure (approximately 10 mm) was performed using skeletal anchorage...
April 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28358289/effect-of-local-hil-10-gene-therapy-on-experimental-periodontitis-in-ovariectomized-rats
#14
Yanfen Li, Souzhi Ma, Jianbin Guo, Jun Jiang, Kai Luo, Fuhua Yan, Yin Xiao
OBJECTIVE: To investigate the effect of local hIL-10 gene therapy on experimental periodontitis in rats and to elucidate the mechanism underlying this effect. MATERIAL AND METHODS: Experimental periodontitis was induced in ovariectomized (OVX) rats using a silk ligature. We then injected 5 μg of hIL-10 plasmid with 5 μl of liposomes or 5 μg of vector plasmid with 5 μl of liposomes into the palatal side of the gingival mucosa of the upper left second molar once every two days...
May 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28358285/external-apical-root-resorption-concurrent-with-orthodontic-forces-the-genetic-influence
#15
Nuria Nieto-Nieto, Jose Enrique Solano, Rosa Yañez-Vico
Root resorption is a pathological process of multifactorial origin related to the permanent loss of dental root structure in response to a mechanical, inflammatory, autoimmune or infectious stimulus. External apical root resorption (EARR) is a frequent clinical complication secondary to orthodontic tooth movement; apart from variables related to treatment, environmental factors and/or interindividual genetic variations can confer susceptibility or resistance to its occurrence. In this context, genetic predisposition has been described as an etiological factor, together with mechanical factors derived from orthodontic treatment...
May 2017: Acta Odontologica Scandinavica
https://www.readbyqxmd.com/read/28339790/does-systemic-administration-of-casein-phosphopeptides-affect-orthodontic-movement-and-root-resorption-in-rats
#16
Lachlan Crowther, Gang Shen, Mohammed Almuzian, Allan Jones, William Walsh, Rema Oliver, Peter Petocz, Nour E Tarraf, M Ali Darendeliler
Objectives: To assess the potential effects of casein phosphopeptides (CPPs) on orthodontically induced iatrogenic root resorption (OIIRR) and orthodontic teeth movement. Materials and methods: Forty Wistar rats (aged 11 weeks) were randomly divided into experimental group (EG; n = 20) that received a diet supplemented with CPP and control group (CG; n = 20) devoid of diet supplement. A 150 g force was applied using nickel titanium (NiTi) coil that was bonded on maxillary incisors and extended unilaterally to a maxillary first molar...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339645/the-extent-of-root-resorption-and-tooth-movement-following-the-application-of-ascending-and-descending-magnetic-forces-a-prospective-split-mouth-microcomputed-tomography-study
#17
Tiffany Teen Yu Huang, Selma Elekdag-Turk, Oyku Dalci, Mohammed Almuzian, Ersan Ilsay Karadeniz, Selma Elekdag-Turk, Carmen Gonzales, Peter Petocz, Tamer Turk, M Ali Darendeliler
Objective: Various factors have been examined in the literature in an attempt to reduce the incidence and severity of root resorption. The purpose of the present investigation is to test the null hypothesis that there is no difference in relation to force level using gradually increasing (ascending) and decreasing (descending) orthodontic force generated by magnets on the severity of Orthodontically Induced Inflammatory Iatrogenic Root Resorption (OIIRR) and amount of tooth movement. Methods: Twenty maxillary first premolars from 10 patients were subjected to ascending (25-225 g, magnets in attraction) and descending (225 to 25 g, magnets in repulsion) buccal forces using a split mouth design over an 8-week period...
February 16, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28339612/orthodontically-induced-cervical-root-resorption-in-humans-is-associated-with-the-amount-of-tooth-movement
#18
Alexander Dudic, Catherine Giannopoulou, Paolo Meda, Xavier Montet, Stavros Kiliaridis
Introduction: The aim of this study was to investigate the variation in the amount of the orthodontically induced cervical root resorption and the association with several factors, such as the amount of tooth displacement, location of tooth in the maxilla or mandible, and presence of an interference that may influence the amount of root resorption. Subjects and methods: This study included 30 subjects (20 females, 10 males) with an age range of 11.3 to 43.0 years...
January 25, 2017: European Journal of Orthodontics
https://www.readbyqxmd.com/read/28336998/characteristics-and-treatment-of-invasive-cervical-resorption-in-vital-teeth-a-narrative-review-and-a-report-of-two-cases
#19
P Tsaousoglou, E Markou, N Efthimiades, I Vouros
Invasive cervical resorption (ICR) is a significant defect of the root surface where the hard dental tissues are undermined and become translucent due to the resorptive granulomatous tissue. It is mainly detected on radiographs. The radiographic appearance of ICR is asymmetrical radiolucency with irregular margins and an unchanged root canal. The purpose of this study is to present a comprehensive review together with the characteristics and the treatment of ICR through two cases which were followed-up for 36 months...
March 24, 2017: British Dental Journal
https://www.readbyqxmd.com/read/28333394/socket-shield-technique-for-immediate-implant-placement-clinical-radiographic-and-volumetric-data-after-5%C3%A2-years
#20
Daniel Bäumer, Otto Zuhr, Stephan Rebele, Markus Hürzeler
OBJECTIVES: Implant placement immediately after tooth extraction is often accompanied by resorption of surrounding tissues. A clinical technique was developed where the buccal portion of the root is retained to preserve the periodontal ligament and bundle bone. This technique is based on animal studies showing the potential to preserve the facial tissues utilizing this approach. The purpose of this study was to gain more insight regarding the safety of the technique with regard to biological and implant-related long-term complications and to observe the clinical appearance of the peri-implant tissues...
March 23, 2017: Clinical Oral Implants Research
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