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https://www.readbyqxmd.com/read/28226676/quantitative-evaluation-of-alveolar-bone-resorption-on-dental-panoramic-radiographs-by-standardized-dentition-image-transformation-and-probability-estimation
#1
Chisako Muramtsu, Ryo Takahashi, Tatsuro Hayashi, Takeshi Hara, Tatsumasa Fukui, Akitoshi Katsumata, Hiroshi Fujita, Chisako Muramtsu, Ryo Takahashi, Tatsuro Hayashi, Takeshi Hara, Tatsumasa Fukui, Akitoshi Katsumata, Hiroshi Fujita, Akitoshi Katsumata, Ryo Takahashi, Tatsuro Hayashi, Takeshi Hara, Chisako Muramtsu, Tatsumasa Fukui, Hiroshi Fujita
Alveolar bone resorption, which can be observed on dental panoramic radiographs (DPRs), is one of the most important signs of the progression of periodontal disease. However, quantitative and consistent evaluation of alveolar bone resorption is labor intense, because of a large number of DPR examinations performed each year. In our previous study, we developed an automated scheme for detection of three lines, corresponding to an occlusion line, an alveolar line and a root apex line, to measure the alveolar bone ratio (ABR), which may be useful to dentists in early detection of periodontal disease...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28215343/clinical-outcomes-after-intentional-replantation-of-periodontally-involved-teeth
#2
Sin-Yeon Cho, Seung-Jong Lee, Euiseong Kim
INTRODUCTION: Periodontal involvement has been thought to be a contraindication for intentional replantation. This retrospective study aimed to assess clinical outcomes after intentional replantation of teeth with periodontal involvement and to explore potential predictors of outcomes. METHODS: Teeth with a history of intentional replantation between March 2000 and December 2014 and with 1 or 2 preoperative periodontal pockets ≥6 mm among 6 sites evaluated per tooth were included...
February 15, 2017: Journal of Endodontics
https://www.readbyqxmd.com/read/28208234/the-influence-of-traumatic-occlusion-on-the-repair-process-for-teeth-following-subluxation
#3
Marina Fuzette Amaral, Caio Vinicius Lourenço Debortoli, Wilson Roberto Poi, Sônia Regina Panzarini, Daniela Atili Brandini
BACKGROUND/AIM: Traumatic occlusion can cause morphofunctional alterations that interfere in the homeostasis of the periodontium The aim of this study was to assess the influence of traumatic occlusion (TO) on the periodontal repair process for teeth following subluxation. MATERIALS AND METHODS: Ninety Wistar rats aged 12 weeks were divided into three groups: control (C), subluxation (S) and subluxation with traumatic occlusion (S+TO). Subluxation was created with an impact force of 900 cN applied by a tensiometer and TO was created with a direct composite resin filling...
February 16, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28204849/effects-of-impacted-maxillary-canines-on-root-resorption-of-lateral-incisors-a-cone-beam-computed-tomography-study
#4
Faruk I Ucar, Ahmet A Celebi, Enes Tan, Tolga Topcuoğlu, Ahmet Ercan Sekerci
OBJECTIVES: The aim of this study was to analyze the amount of root resorption of maxillary lateral incisors by relating the position, location, and angulation of the impacted canine using cone-beam computed tomography (CBCT). MATERIALS AND METHODS: The study sample consisted of panoramic and CBCT radiographs of 46 patients with a unilateral impacted canine (16 males and 30 females; mean age: 19.53 ± 6.66 and 19.44 ± 5.77 years, respectively). Sector location and canine angulation were measured in panoramics...
February 15, 2017: Journal of Orofacial Orthopedics, Fortschritte der Kieferorthopädie
https://www.readbyqxmd.com/read/28203005/-clinical-evaluation-of-periodontal-orthodontic-treatment-in-patients-with-aggressive-periodontitis-and-malocclusion
#5
X Shen, J Shi, L Xu, J Jiao, R F Lu, H X Meng
OBJECTIVE: To evaluate the clinical effect and safety of periodontal-orthodontic treatment in patients with aggressive periodontitis (AgP) and malocclusion. METHODS: A retrospective analysis was conducted in 25 AgP patients, who had received periodontal-orthodontic treatment in Peking University School and Hospital of Stomatology. Clinical indexes, including probing depth (PD), bleeding index (BI) and percentage of sites with bleeding on probing (BOP%) were evaluated at three time points: Baseline (T0); active periodontal treatment finished and before orthodontic treatment (T1); and after orthodontic treatment (T2)...
February 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/28197400/effect-of-gingival-fibroblasts-and-ultrasound-on-dogs-root-resorption-during-orthodontic-treatment
#6
Jacqueline Crossman, Ali H Hassan, Ali Saleem, Nayef Felemban, Saleh Aldaghreer, Elham Fawzi, Mamdouh Farid, Khaled Abdel-Ghaffar, Ausama Gargoum, Tarek El-Bialy
OBJECTIVES: To investigate the effect of using osteogenic induced gingival fibroblasts (OIGFs) and low intensity pulsed ultrasound (LIPUS) on root resorption lacunae volume and cementum thickness in beagle dogs that received orthodontic tooth movement. MATERIALS AND METHODS: Seven beagle dogs were used, from which gingival cells (GCs) were obtained and were induced osteogenically to produce OIGFs. Each third and fourth premolar was randomly assigned to one of the five groups, namely, LIPUS, OIGFs, bone morphogenetic protein-2 (BMP-2), OIGFs + LIPUS, and control...
January 2017: Journal of Orthodontic Science
https://www.readbyqxmd.com/read/28179939/autogenous-transplantation-for-replacing-a-hopeless-tooth
#7
Mehrsa Zakershahrak, Amirabbas Moshari, Mehdi Vatanpour, Zohreh Khalilak, Afsoon Jalali Ara
Autogenous tooth transplantation (ATT) is a simple and reasonable choice for replacing the missing teeth when a proper donor tooth is available. This report presents a case of successful ATT of a maxillary right third molar for replacement of mandibular right second molar with a concomitant endodontic-periodontal disease. The mandibular second molar was believed to be hopeless due to a severe damage to coronal tooth structure, inappropriate root canal treatment and apical radiolucency. After extraction of mandibular second molar and maxillary third molar (the donor), the tooth was re-implanted into the extracted socket of second molar site...
2017: Iranian Endodontic Journal
https://www.readbyqxmd.com/read/28177588/a-retrospective-study-of-isolated-fractures-of-the-alveolar-process-in-the-permanent-dentition
#8
Maja Marotti, Kurt Alois Ebeleseder, Gerold Schwantzer, Stefanie Jauk
BACKGROUND/AIM: There is a lack of studies of fractures of the alveolar process (FAP). Only five were published in the last fifty years. The aim of this study was to analyze the risk of pulp necrosis and infection (PN), pulp canal obliteration (PCO), infection-related root resorption (IRR), ankylosis-related resorption (ARR), marginal bone loss (MBL), and tooth loss (TL) as well as to identify the possible risk factors for teeth involved in an isolated alveolar process fracture. In the second part, any late complications of the involved teeth were reported in patients who responded to a follow-up examination...
February 8, 2017: Dental Traumatology: Official Publication of International Association for Dental Traumatology
https://www.readbyqxmd.com/read/28161897/persistent-extra-radicular-bacterial-biofilm-in-endodontically-treated-human-teeth-scanning-electron-microscopy-analysis-after-apical-surgery
#9
Bruno Carvalho de Sousa, Fábio de Almeida Gomes, Cláudio Maníglia Ferreira, Márcia Maria de Negreiros Pinto Rocha, Eduardo Bede Barros, Diana Santana de Albuquerque
Biofilms are the main cause of endodontic failures. Even the best executed endodontic treatment can fail, when the infection is resistant to treatment or when it is located in inaccessible areas, such as the external surface of the root apex. The purpose of this study was to evaluate, by scanning electron microscopy, the presence of bacterial biofilm on endodontically treated teeth considered clinical failures and suitable for apical surgery. Root apices were collected from 20 teeth undergoing apical surgery and one negative control and analyzed under SEM...
February 5, 2017: Microscopy Research and Technique
https://www.readbyqxmd.com/read/28159386/predictive-factors-for-resorption-of-teeth-adjacent-to-impacted-maxillary-canines
#10
Fany Cuminetti, François Boutin, Laure Frapier
PURPOSE: The aim of this study was to assess the link between the degree of resorption of teeth adjacent to an impacted maxillary canine and the situation of the latter so as to identify factors predictive of resorption. MATERIAL AND METHODS: This was a retrospective study concerning all patients with impacted maxillary canines who consulted the orthodontics department at the Center for dental care, teaching and research (CSERD) in Montpellier between 2010 and 2015, with a full radiological file including panorex, periapical long-cone and cone-beam images...
January 31, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28153756/ameloblastic-fibrodentinoma-and-ameloblastic-fibro-odontoma-an-updated-systematic-review-of-cases-reported-in-the-literature
#11
REVIEW
Bruno Ramos Chrcanovic, Ricardo Santiago Gomez
PURPOSE: To integrate the available data published on ameloblastic fibrodentinoma (AFD) and ameloblastic fibro-odontoma (AFO) into a comprehensive analysis of its clinical and radiologic features. MATERIALS AND METHODS: An electronic search was undertaken in August 2016. Eligibility criteria included publications reporting cases of AFD or AFO with enough clinical, radiologic, and histologic information to confirm the diagnosis. Demographic data, lesion site and size, treatment approach, and recurrence were analyzed and compared between AFD and AFO...
January 6, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28153170/root-resorption-of-maxillary-incisors-retracted-with-and-without-skeletal-anchorage
#12
Sérgio Estelita Barros, Guilherme Janson, Kelly Chiqueto, Vitor Oliveira Baldo, Taiana Oliveira Baldo
INTRODUCTION: Our objective was to compare root resorption degree of the maxillary central incisors retracted with and without skeletal anchorage. METHODS: This nonrandomized historical control study included 37 patients requiring maximum anterior retraction and treated with extraction of 2 maxillary premolars. Group 1 consisted of 22 patients (11 male, 11 female) in whom anterior retraction was performed without skeletal anchorage, and group 2 included 15 patients (3 male, 12 female) treated with skeletally anchored anterior retraction...
February 2017: American Journal of Orthodontics and Dentofacial Orthopedics
https://www.readbyqxmd.com/read/28136695/heterogeneous-human-periodontal-ligament-committed-progenitor-and-stem-cell-populations-exhibit-a-unique-cementogenic-property-under-in-vitro-and-in-vivo-conditions
#13
Rei Shinagawa-Ohama, Mai Mochizuki, Yuichi Tamaki, Naoto Suda, Taka Nakahara
An undesirable complication that arises during dental treatments is external apical-root resorption, which causes root-cementum and root-dentin loss. To induce de novo cementogenesis, stem cell therapy is required. Cementum-forming cells (cementoblasts) are known to be differentiated from periodontal-lineage mesenchymal stem cells (MSCs), which are derived from the dental follicle (DF) in developing tissues and the periodontal ligament (PDL) in adult tissues, but the periodontal-lineage MSC type that is optimal for inducing de novo cementogenesis remains unidentified, as does the method to isolate these cells from harvested tissues...
January 31, 2017: Stem Cells and Development
https://www.readbyqxmd.com/read/28131611/orthodontic-aligners-and-root-resorption-a-systematic-review
#14
Rajae Elhaddaoui, Halima Saadia Qoraich, Loubna Bahije, Fatima Zaoui
INTRODUCTION: Root resorption is one of the leading problems in orthodontic treatment. Most earlier studies have assessed the incidence and severity of root resorption following orthodontic treatment using fixed appliances as well as associated factors. However, few studies have assessed these parameters in the context of orthodontic treatment using thermoplastic splints or aligners. The aim of this systematic review was to assess the incidence and severity of root resorption following orthodontic treatment using aligners and associated factors...
January 25, 2017: International Orthodontics
https://www.readbyqxmd.com/read/28125136/why-not-to-treat-the-tooth-canal-to-solve-external-root-resorptions-here-are-the-principles
#15
Alberto Consolaro, Graziella Bittencourt
This paper aims at exposing the foundations or reasons why, in cases of external tooth resorption, including those of orthodontic origin, one should not perform a root canal to treat it. That should be done only to teeth with contamination or pulp necrosis, to remove the periapical inflammation induced by microbial products. When facing cases of external tooth resorption, one's conduct must always respect the following sequence of steps: first of all, identifying the cause accurately; then, planning the therapeutic approach and, finally, adopting the conducts in a very well-founded way...
November 2016: Dental Press Journal of Orthodontics
https://www.readbyqxmd.com/read/28097666/understanding-external-cervical-resorption-patterns-in-endodontically-treated-teeth
#16
M Mavridou, E Hauben, M Wevers, E Schepers, L Bergmans, P Lambrechts
AIM: To understand the pattern of external cervical resorption (ECR) in endodontically treated teeth. To compare characteristics and mechanisms of ECR in root filled teeth with those established in teeth with vital pulps. METHODOLOGY: Seven cases of endodontically treated permanent teeth displaying ECR were investigated. ECR diagnosis was based on clinical findings and radiographic examination with cone-beam computed tomography (CBCT). The extracted teeth were further analysed by a nano-focus computed tomographic (nano-CT) system, hard tissue histology and scanning electron microscopy (SEM)...
January 18, 2017: International Endodontic Journal
https://www.readbyqxmd.com/read/28065972/management-of-root-resorption-with-mineral-trioxide-aggregate-complicated-by-a-luxation-injury-report-of-a-case-with-six-year-follow-up
#17
Adem Kusgoz, Tahsin Yildirim, Cemile Kedici Alp, Mehmet Tanriver
Trauma to the oral region occurs frequently, comprising 5% of all injuries. The most common dental injuries are lateral luxations which can be seen with a prevalence of up to 27% among dental injuries. Ectopic eruption of maxillary canines can lead to root resorption on maxillary lateral incisors especially on apical and middle thirds of the roots. Half of these resorbed lateral incisors show severe resorption, in which the pulp is exposed. This case report describes non-surgical treatment with mineral trioxide aggregate (MTA) and a six-year follow-up of a maxillary lateral incisor, resorbed by ectopic eruption of the canine and affected by lateral luxation injury...
January 2017: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/28062250/autotransplantation-of-third-molars-with-completely-formed-roots-into-surgically-created-sockets-and-fresh-extraction-sockets-a-10-year-comparative-study
#18
H J Yu, P Jia, Z Lv, L X Qiu
The aim of this study was to analyze and compare the long-term clinical outcomes of mature third molar autotransplantation in surgically created sockets and fresh extraction sockets with regard to survival and functional success rates. A total of 65 third molars with completely formed roots were autotransplanted in 60 patients (average age 33.1 years). Thirty-six of the teeth were autotransplanted into surgically created sockets with or without guided bone regeneration (GBR; delayed autotransplantation), while 29 were autotransplanted into fresh extraction sockets (immediate autotransplantation; control group)...
January 3, 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28050990/swinging-replantation-a-possible-protocol-for-the-management-of-inverted-impacted-upper-central-incisor-tooth
#19
Seidu A Bello, Deborah J Enebong, Emeka V Obi
Inverted tooth impaction is a rare occurrence. Third molar impaction is the most extensively studied, and only eight cases of inverted third molars have been reported in a literature search of 40 years from 1973 to 2013. In a study, 43.4% of the premaxillary supernumeraries were inverted and 21.1% were transversely oriented, while occasional inverted central incisors have been mentioned in the literature. Severe dilaceration makes the management of this case a big challenge. The case of an 8-year-old boy with an inverted, rotated, and impacted upper left central incisor obstructed by an odontome is presented here...
January 1, 2017: Journal of Contemporary Dental Practice
https://www.readbyqxmd.com/read/28050063/a-radiographic-study-of-external-apical-root-resorption-in-patients-treated-with-single-phase-fixed-orthodontic-therapy
#20
S S Agarwal, S S Chopra, Prasanna Kumar, B Jayan, K Nehra, Mohit Sharma
BACKGROUND: External apical root resorption (EARR) is one of the most common iatrogenic consequences of orthodontic tooth movement. Many factors like gender, duration, orthodontic force and duration of orthodontic treatment have been implicated to cause EARR. METHODS: Pre- and post-treatment OPGs of 60 orthodontic patients (30 males and 30 females) who had undergone treatment with a single phase of fixed orthodontic therapy were randomly selected from institutional archives...
December 2016: Medical Journal, Armed Forces India
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