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[PMID]:29407509
[Au] Autor:Tsolakis AI; Kalavritinos M; Bitsanis E; Sanoudos M; Benetou V; Alexiou K; Tsiklakis K
[Ad] Endereço:Department of Orthodontics, School of Dentistry, National and Kapodistrian University of Athens, Athens, Greece. Electronic address: apostso@otenet.gr.
[Ti] Título:Reliability of different radiographic methods for the localization of displaced maxillary canines.
[So] Source:Am J Orthod Dentofacial Orthop;153(2):308-314, 2018 Feb.
[Is] ISSN:1097-6752
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: The purpose of this study was to evaluate the reliability of the radiographic images of the main conventional x-ray techniques compared with the information from cone-beam computed tomography (CBCT). METHODS: Twenty patients with unilateral or bilateral impaction of the maxillary canines had radiographic examinations by means of periapical x-rays, occlusal x-rays, panoramic x-rays, and CBCT scans. Three experienced orthodontists examined all x-rays from each patient and evaluated the radiographic images of the impacted canines. The examiners were asked to detect resorption in adjacent teeth and the buccal-palatal position of the impacted canines. Agreement between examiners was statistically tested. RESULTS: Different diagnoses were produced by the 3 examiners regarding localization of the impacted canines and the presence or absence of root resorption of the adjacent teeth in conventional radiographic images. It appears that whereas panoramic x-ray is more sensitive in detecting resorption and tooth position, occlusal and periapical imaging have higher specificity and positive predictive value. The examiners were in good or excellent agreement when occlusal and periapicals were used for the definite diagnosis of resorption and tooth position. There was no disagreement of the examiners in CBCT images, which were used as the gold standard. CONCLUSIONS: Conventional radiographic methods demonstrated a more subjective diagnostic procedure compared with CBCT images. CBCT is a more accurate and precise examination method compared with conventional radiography for the localization of impacted teeth and root resorption of the adjacent teeth.
[Mh] Termos MeSH primário: Dente Canino/diagnóstico por imagem
Radiografia Dentária
Dente Impactado/diagnóstico por imagem
[Mh] Termos MeSH secundário: Adolescente
Criança
Tomografia Computadorizada de Feixe Cônico
Seres Humanos
Maxila/diagnóstico por imagem
Radiografia Dentária/métodos
Radiografia Panorâmica
Reprodutibilidade dos Testes
Sensibilidade e Especificidade
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE


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[PMID]:29407496
[Au] Autor:Tepedino M; Chimenti C; Masedu F; Iancu Potrubacz M
[Ad] Endereço:Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy. Electronic address: m.tepedino@hotmail.it.
[Ti] Título:Predictable method to deliver physiologic force for extrusion of palatally impacted maxillary canines.
[So] Source:Am J Orthod Dentofacial Orthop;153(2):195-203, 2018 Feb.
[Is] ISSN:1097-6752
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Orthodontic treatment of palatally impacted maxillary canines raises many difficulties; to minimize complications, careful planning of orthodontic extrusion and the use of physiologic force are crucial. The aim of this study was to quantitatively evaluate a simple and reproducible system for orthodontic extrusion of impacted canines that can provide the correct amount of force. METHODS: Ten specimens were constructed, consisting of a cantilever made with a 0.6-mm or 0.7-mm stainless steel wire modeled around a transpalatal bar with 3, 5, or 7 loops in the shape of a helical torsion spring. A mechanical testing machine was used to measure the force produced by the cantilever at 3, 6, 9, 12, and 15 mm of activation. RESULTS: The force values ranged from 1.24 ± 0.13 N for the 0.7-mm wire with 3 loops to 0.48 ± 0.04 N for the 0.6-mm wire with 7 loops. The forces measured for the 0.6-mm wire with 3 loops and the 0.7-mm wire with 7 loops were similar at 15 mm of deflection. CONCLUSIONS: The proposed system has a simple and robust design, is easy to construct and manage, and can provide the desired amount of force by changing the wire diameter and number of loops.
[Mh] Termos MeSH primário: Dente Canino/cirurgia
Extrusão Ortodôntica/métodos
Dente Impactado/cirurgia
[Mh] Termos MeSH secundário: Análise do Estresse Dentário
Seres Humanos
Maxila
Extrusão Ortodôntica/instrumentação
Fios Ortodônticos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:180207
[St] Status:MEDLINE


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[PMID]:29314803
[Au] Autor:Pavlovic J; Tabakovic SZ; Simic S; Vujacic A; Vukicevic V
[Ti] Título:Orthodontic-surgical treatment of four impacted canines in an adult patient: A case report.
[So] Source:Vojnosanit Pregl;73(7):682-5, 2016 Jul.
[Is] ISSN:0042-8450
[Cp] País de publicação:Serbia
[La] Idioma:eng
[Ab] Resumo:Introduction: Full impaction of canines, in both jaws, is a rare phenomenon. It is usually coupled with the persistence of deciduous canines, or any other irregularity in the dental arch. Case report: Panoramic radiograph of a 24-year-old female patient showed bilateral canine impaction in both jaws. Due to vestibular, apical and medial position of canines in the upper jaw, the surgical approach implied the apically positioned flap technique. The position of impacted mandibular canines was vertical with more coronal position relative to the upper canines, thus requiring a closed eruption technique. Conclusion: Inadequate position of impacted canines in the bone fully justifies the use of orthodontic-surgical treatment.
[Mh] Termos MeSH primário: Dente Canino/cirurgia
Diastema/terapia
Braquetes Ortodônticos
Sobremordida/terapia
Dente Impactado/cirurgia
[Mh] Termos MeSH secundário: Dente Canino/diagnóstico por imagem
Feminino
Seres Humanos
Sobremordida/complicações
Radiografia Panorâmica
Dente Impactado/complicações
Dente Impactado/diagnóstico por imagem
Adulto Jovem
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180213
[Lr] Data última revisão:
180213
[Sb] Subgrupo de revista:IM
[Da] Data de entrada para processamento:180110
[St] Status:MEDLINE
[do] DOI:10.2298/VSP140401009P


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[PMID]:28468173
[Au] Autor:Choi BJ; Lee BS; Lee HJ; Park KH; Kim SH
[Ad] Endereço:*Department of Oral and Maxillofacial Surgery, Graduate School, Kyung Hee University †Department of Orthodontics, Graduate School, Kyung Hee University, Seoul, Republic of Korea.
[Ti] Título:Double Anterior Segmental Osteotomy Under Local Anesthesia for Correcting Adult Protrusion With Thin Alveolus and Ankylosed Tooth.
[So] Source:J Craniofac Surg;28(3):821-825, 2017 May.
[Is] ISSN:1536-3732
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:BACKGROUNDS: This paper describes an additional benefit in double anterior segmental osteotomy to correct severe anterior protrusion in adult patients with extremely thin mandibular alveolus and ankylosed tooth. For the optimal anterior segmental retraction, an ankylosed posterior tooth needed surgical inclination reposition. During anterior segmental osteotomy surgery under local anesthesia, additional single tooth osteotomy was performed without challenge. METHODS: For anterior segment retraction, osteotomy cuts were made by the surgeon to define a block of bone embedding 6 mandibular anterior teeth. First premolars were extracted during initial orthodontic treatment period. But the ankylosed lower left lateral incisor and lower right second premolar root which remains mesially with uprighted crown hindered further anterior segment retraction. The authors removed cortical bone around second premolar root and repositioned to be upright. Anterior segment was retracted to proper position utilizing the space gained. RESULT: Thin alveolar mandibular anterior segment retraction and the second premolar uprighting were managed effectively with additional single tooth segmental osteotomy during anterior segmental osteotomy. CONCLUSION: Double anterior segmental osteotomy can be an effective alternative to conventional orthognathic surgery in selected adult patients.
[Mh] Termos MeSH primário: Anestesia Local/métodos
Dente Canino/cirurgia
Mandíbula/cirurgia
Osteotomia/métodos
Anquilose Dental/cirurgia
Técnicas de Movimentação Dentária/métodos
Alvéolo Dental/cirurgia
[Mh] Termos MeSH secundário: Adulto
Dente Pré-Molar
Seres Humanos
Incisivo
Masculino
Anquilose Dental/diagnóstico
Anquilose Dental/etiologia
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1802
[Cu] Atualização por classe:180209
[Lr] Data última revisão:
180209
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:170505
[St] Status:MEDLINE
[do] DOI:10.1097/SCS.0000000000003432


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[PMID]:29232200
[Au] Autor:Celebi F; Bicakci AA
[Ad] Endereço:Department of Orthodontics, Faculty of Dentistry, University of Gaziosmanpasa, Turkey. fatihcelebi5860@gmail.com.
[Ti] Título:The shoulder spring for eruption of impacted canines.
[So] Source:J Clin Orthod;51(10):657-660, 2017 Oct.
[Is] ISSN:0022-3875
[Cp] País de publicação:United States
[La] Idioma:eng
[Mh] Termos MeSH primário: Dente Canino
Extrusão Ortodôntica/instrumentação
Dente Impactado/terapia
[Mh] Termos MeSH secundário: Adolescente
Desenho de Equipamento
Seres Humanos
Masculino
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180118
[Lr] Data última revisão:
180118
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:171213
[St] Status:MEDLINE


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[PMID]:29287646
[Au] Autor:Ikoma M; Arai K
[Ad] Endereço:Department of Orthodontics, School of Life Dentistry at Tokyo, Nippon Dental University, Tokyo, Japan.
[Ti] Título:Craniofacial morphology in women with Class I occlusion and severe maxillary anterior crowding.
[So] Source:Am J Orthod Dentofacial Orthop;153(1):36-45, 2018 Jan.
[Is] ISSN:1097-6752
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Our objective was to investigate craniofacial morphology in women with Class I occlusion and maxillary anterior crowding (MxAC) with bilateral palatal displacement of the lateral incisors and facial displacement of the canines. METHODS: Thirty-three women with normal occlusion (mean age, 20.7 ± 2.3 years) were selected as the control group, and 33 women with severe MxAC (mean age, 23.3 ± 3.8 years) with bilateral palatal and facial displacement of the lateral incisors and canines, respectively, were selected as the MxAC group. Mesiodistal tooth crown diameter, arch length discrepancy, facial-palatal displacement of lateral incisors and canines, and dental arch dimensions were measured. Fourteen skeletal and 10 dental cephalometric measurements were made. Medians, interquartile ranges, means, and standard deviations were calculated for each parameter, and the nonparametric Mann-Whitney U test (P <0.05) was used to compare the 2 groups. RESULTS: Compared with the control group, the MxAC group showed a significantly wider angle (P <0.05) and shorter length (P <0.01) in the cranial base, a smaller sagittal maxillary base (P <0.01), and a hyperdivergent skeletal pattern (P <0.01 and P <0.05). CONCLUSIONS: Women with Class I occlusion and severe MxAC exhibited a significantly wider angle and shorter length in the cranial base, a smaller sagittal maxillary base, and a hyperdivergent skeletal pattern. These skeletal and dental characteristics and cranial base dysmorphology may be helpful as potential indicators for orthodontic treatment with extractions.
[Mh] Termos MeSH primário: Cefalometria
Face/anatomia & histologia
Má Oclusão de Angle Classe I/patologia
Crânio/anatomia & histologia
[Mh] Termos MeSH secundário: Estudos Transversais
Dente Canino
Feminino
Seres Humanos
Incisivo
Maxila
Estudos Retrospectivos
Índice de Gravidade de Doença
Adulto Jovem
[Pt] Tipo de publicação:COMPARATIVE STUDY; JOURNAL ARTICLE
[Em] Mês de entrada:1801
[Cu] Atualização por classe:180112
[Lr] Data última revisão:
180112
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:171231
[St] Status:MEDLINE


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[PMID]:28962736
[Au] Autor:Thiruvenkatachari B; Javidi H; Griffiths SE; Shah AA; Sandler J
[Ad] Endereço:School of Dentistry, University of Manchester, Manchester, United Kingdom. Electronic address: Badri.T@manchester.ac.uk.
[Ti] Título:Extraction of maxillary canines: Esthetic perceptions of patient smiles among dental professionals and laypeople.
[So] Source:Am J Orthod Dentofacial Orthop;152(4):509-515, 2017 Oct.
[Is] ISSN:1097-6752
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: Maxillary canines are generally considered important both cosmetically and functionally. Most claims on the importance of maxillary canines, however, have been based on expert opinions and clinician-based studies. There are no scientific studies in the literature reporting on their cosmetic importance or how laypeople perceive a smile treated by maxillary canine extractions. Our objective was to investigate whether there is any difference in the perceptions of patients' smiles treated by extracting either maxillary canines or first premolars, as judged by orthodontists, dentists, and laypeople. METHODS: This retrospective study included 24 participants who had unilateral or bilateral extraction of maxillary permanent canines and fixed appliances in the maxillary and mandibular arches to comprehensively correct the malocclusion, selected from orthodontic patients treated at Chesterfield Royal Hospital NHS trust in the United Kingdom over the last 20 years. The control group of patients had extraction of maxillary first premolars followed by fixed appliances and finished to an extremely high standard judged by the requirement that they had been submitted for the Membership in Orthodontics examination. The finished Peer Assessment Rating scores for this group were less than 5. The end-of-treatment frontal extraoral smiling and frontal intraoral views were presented for both groups. The photographs were blinded for extraction choice and standardized for size and brightness using computer software (Adobe Photoshop CC version 14.0; Adobe Systems, San Jose, Calif). The work file was converted to an editable pdf file and e-mailed to the assessors. The assessor panel consisted of 30 members (10 orthodontists, 10 dentists, and 10 laypeople), who were purposely selected. The measures were rated on a 10-point Likert scale. RESULTS: The attractiveness ratings were not statistically significantly different between the canine extraction and premolar extraction groups, with a mean difference of 0.33 (SD, 0.29) points. A 1-way repeated-measures analysis of variance to test the difference in scores among the laypeople, orthodontists, and dentists (n = 30) showed no statistically significant difference (Wilks lambda = 0.835; P = 0.138), and the Bonferroni test indicated that no pair-wise difference was statistically significant. CONCLUSIONS: No statistically significant difference was found in the smile attractiveness between canine extraction and premolar extraction patients as assessed by general dentists, laypeople, and orthodontists. Further high-quality studies are required to evaluate the effect of canine extraction and premolar substitution on functional occlusion.
[Mh] Termos MeSH primário: Atitude do Pessoal de Saúde
Dente Canino/cirurgia
Estética Dentária
Sorriso
Extração Dentária
[Mh] Termos MeSH secundário: Feminino
Seres Humanos
Masculino
Má Oclusão/terapia
Maxila
Ortodontia Corretiva
Estudos Retrospectivos
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:171001
[St] Status:MEDLINE


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[PMID]:28962733
[Au] Autor:Kim SH; Son WS; Yamaguchi T; Maki K; Kim SS; Park SB; Kim YI
[Ad] Endereço:Department of Orthodontics, Dental Research Institute, Pusan National University Dental Hospital, Yangsan, South Korea.
[Ti] Título:Assessment of the root apex position of impacted maxillary canines on panoramic films.
[So] Source:Am J Orthod Dentofacial Orthop;152(4):489-493, 2017 Oct.
[Is] ISSN:1097-6752
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: In this study, we aimed to analyze the root apex positions of impacted maxillary canines on panoramic radiographs according to their labiopalatal positions and to propose a new panoramic radiographic predictor of impacted maxillary canines. METHODS: Paired panoramic films and cone-beam computed tomography images of 104 patients with unilateral impacted maxillary canines were selected. The sector locations of the impacted canine root apices on the panoramic radiographs were compared with the labiopalatal positions of impacted maxillary canines on cone-beam computed tomography. Statistical correlations between panoramic and cone-beam computed tomography findings were examined with the chi-square test. RESULTS: A statistically significant association was observed between the sector locations of impacted canine root apices and the labiopalatal positions of the canines (P <0.001). The root apices of labially impacted canines were more frequently located in sector 2 (corresponding to the lateral incisor position), those of palatally impacted canines were more frequently located in sector 4 (corresponding to the first premolar), and those of midalveolus impacted canines were more frequently located in sector 3 (corresponding to the canine). CONCLUSIONS: On panoramic films, the root apices of palatally impacted canines tended toward the root apices of the maxillary first premolars, whereas those of labially impacted canines tended toward the root apices of the maxillary lateral incisors. Therefore, the sector locations of impacted canine root apices on panoramic radiographs could be used for the early prediction of maxillary canine impactions and determination of the labiopalatal positions of impacted canines.
[Mh] Termos MeSH primário: Tomografia Computadorizada de Feixe Cônico
Dente Canino/diagnóstico por imagem
Radiografia Panorâmica
Raiz Dentária/diagnóstico por imagem
Dente Impactado/diagnóstico por imagem
[Mh] Termos MeSH secundário: Adolescente
Criança
Feminino
Seres Humanos
Masculino
Maxila
Raiz Dentária/patologia
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Em] Mês de entrada:1710
[Cu] Atualização por classe:171019
[Lr] Data última revisão:
171019
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:171001
[St] Status:MEDLINE


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[PMID]:28872984
[Au] Autor:Kim MS; Lee HS; Nam OH; Choi SC
[Ti] Título:Autotransplantation: A Reliable Treatment Modality for Severely Malpositioned Teeth.
[So] Source:J Clin Pediatr Dent;41(5):388-391, 2017.
[Is] ISSN:1053-4628
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:Maxillary canines are the most commonly impacted teeth, second only to third molars. Various treatment methods may be used to recover impacted maxillary canines. This is a report of a 14-year-old girl with a severely malpositioned impacted right maxillary canine which accompanied severe root resorption of adjacent tooth, treated by autotransplantation with a computer aided rapid prototyping model as a surgical guide. This case report demonstrates that autotransplantation can be a reliable treatment alternative, in cases with a severely malpositioned impacted canine, providing acceptable prognosis.
[Mh] Termos MeSH primário: Dente Canino/transplante
Reabsorção da Raiz/cirurgia
Dente Impactado/cirurgia
[Mh] Termos MeSH secundário: Adolescente
Tomografia Computadorizada de Feixe Cônico
Dente Canino/diagnóstico por imagem
Feminino
Seres Humanos
Imagem Tridimensional
Reabsorção da Raiz/diagnóstico por imagem
Dente Impactado/diagnóstico por imagem
Transplante Autólogo
[Pt] Tipo de publicação:CASE REPORTS; JOURNAL ARTICLE
[Em] Mês de entrada:1709
[Cu] Atualização por classe:170926
[Lr] Data última revisão:
170926
[Sb] Subgrupo de revista:D
[Da] Data de entrada para processamento:170906
[St] Status:MEDLINE
[do] DOI:10.17796/1053-4628-41.5.388


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[PMID]:28863915
[Au] Autor:Jiang F; Chen J; Kula K; Gu H; Du Y; Eckert G
[Ad] Endereço:Department of Mechanical Engineering, Indiana University Purdue University, Indianapolis, Ind.
[Ti] Título:Root resorptions associated with canine retraction treatment.
[So] Source:Am J Orthod Dentofacial Orthop;152(3):348-354, 2017 Sep.
[Is] ISSN:1097-6752
[Cp] País de publicação:United States
[La] Idioma:eng
[Ab] Resumo:INTRODUCTION: The hypothesis of this study was that multiple factors are dominant in causing external apical root resorption (EARR). The objective of this investigation was to better understand the clinical factors that may lead to EARR. METHODS: Maxillary cone-beam computed tomography scans of 18 subjects who were treated with bilateral canine retractions during orthodontics were used to calculate EARR. The subjects were treated using well-calibrated segmental T-loops for delivering a 124-cN retraction force and the moment-to-force ratio suitable for moving the canine under either translation or controlled tipping. The subjects' age, sex, treatment duration, and genotype were collected. RESULTS: Six subjects of the 18 showed definite EARR, meaning that load was not the only causing factor. All 5 subjects with the genotype identified had GG genotype of IL-1ß rs11143634, indicating that people with this genotype may be at high risk. Longer treatment duration, female sex, and older age may also contribute to EARR, although the findings were not statistically significant. CONCLUSIONS: EARR appears to be related to multiple factors. The orthodontic load and the genotype should be the focuses for future studies.
[Mh] Termos MeSH primário: Dente Canino
Reabsorção da Raiz/etiologia
Técnicas de Movimentação Dentária/efeitos adversos
[Mh] Termos MeSH secundário: Adolescente
Adulto
Fatores Etários
Criança
Tomografia Computadorizada de Feixe Cônico
Dente Canino/diagnóstico por imagem
Feminino
Genótipo
Seres Humanos
Interleucina-1beta/genética
Masculino
Meia-Idade
Polimorfismo de Nucleotídeo Único/genética
Fatores de Risco
Reabsorção da Raiz/diagnóstico por imagem
Reabsorção da Raiz/genética
Fatores Sexuais
Adulto Jovem
[Pt] Tipo de publicação:JOURNAL ARTICLE
[Nm] Nome de substância:
0 (Interleukin-1beta)
[Em] Mês de entrada:1709
[Cu] Atualização por classe:171027
[Lr] Data última revisão:
171027
[Sb] Subgrupo de revista:D; IM
[Da] Data de entrada para processamento:170903
[St] Status:MEDLINE



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