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1.
Medisan ; 25(2)mar.-abr. 2021. ilus
Article in Spanish | LILACS, CUMED | ID: biblio-1250350

ABSTRACT

Se describe el caso clínico de una paciente de 18 años de edad, quien acudió a la Clínica Estomatológica Provincial Docente Mártires del Moncada de Santiago de Cuba, por presentar persistencia de caninos temporales. Para el diagnóstico y tratamiento exitoso fue necesaria la participación de un equipo multidisciplinario integrado por especialistas en: ortodoncia, imagenología, prótesis y cirugía maxilofacial, quienes corroboraron la retención de caninos superiores. Mediante el tratamiento conjunto de ortodoncia y prótesis, se logró la rehabilitación estética y funcional de la paciente.


The case report of an 18 years patient is described. She went to Mártires del Moncada Teaching Provincial Stomatologic Clinic in Santiago de Cuba, due to persistence of temporary canine teeth. The participation of a multidisciplinary team integrated by specialists in: orthodontics, imaging, prosthesis and maxillofacial surgery was necessary for the successful diagnosis and treatment. They corroborated the retention of upper canine teeth. By means of the combined treatment of orthodontics and prosthesis, the patient cosmetic and functional rehabilitation was achieved.


Subject(s)
Surgery, Oral/rehabilitation , Tooth, Impacted/diagnostic imaging , Cuspid/growth & development , Patient Care Team , Diastema/surgery
2.
Dental press j. orthod. (Impr.) ; 25(6): 19-25, Nov.-Dec. 2020. graf
Article in English | LILACS, BBO | ID: biblio-1154054

ABSTRACT

ABSTRACT Introduction: Teeth frequently fail to erupt and situations arise that prevent the canines from reaching the occlusal plane. Objective: Discourse about the three situations in which the canine does not reach the occlusal plane, and remains unerupted; and at the same time, point how to make a safe diagnosis of alveolodental ankylosis - one of the three causes -, based on tomography. Conclusions: Ankylosis occurs in impacted teeth by atrophy of the periodontal ligament, including the epithelial rests of Malassez. The tomographic signs of alveolodental ankylosis in unerupted canines are the interruption of hypodense periodontal space, discontinuity of the lamina dura and its continuity with the root surface, which gradually loses its regular shape.


RESUMO Introdução: Muitas vezes, a erupção falha, e ocorrem situações que impedem que os caninos cheguem até o plano oclusal. Objetivos: Discorrer sobre quais as três situações nas quais o canino não chega até o plano oclusal, permanecendo não irrompido e, ao mesmo tempo, destacar como se diagnosticar com segurança uma dessas três causas, a anquilose alveolodentária, a partir da tomografia. Conclusões: A anquilose em dentes não irrompidos ocorre pela atrofia do ligamento periodontal, incluindo os Restos Epiteliais de Malassez. Os sinais tomográficos de uma anquilose alveolodentária em caninos não irrompidos são a interrupção do espaço periodontal hipodenso, a descontinuidade da lâmina dura e a sua continuidade com a superfície radicular, que, gradativamente, perde sua regularidade.


Subject(s)
Humans , Tooth, Impacted , Tooth Ankylosis , Cuspid/diagnostic imaging , Periodontal Ligament , Tooth, Impacted/diagnostic imaging , Tomography, X-Ray Computed , Tooth Ankylosis/diagnostic imaging
3.
Dental press j. orthod. (Impr.) ; 25(4): 68-74, July-Aug. 2020. tab, graf
Article in English | LILACS, BBO | ID: biblio-1133672

ABSTRACT

ABSTRACT Objective: To evaluate the skill of orthodontists and oral/maxillofacial surgeons (OMFS) in providing a prognosis of mandibular third molars spontaneously erupted, through follow-up panoramic analysis. Methods: 22 orthodontic patients treated without extraction, presenting spontaneously erupted mandibular third molars (n = 44) were analyzed through panoramic serial radiographs. The first panoramic radiograph was obtained just after orthodontic treatment (PR1), in patients aging from 13 to 19 years. A second panoramic radiograph (PR2), was obtained in average two years later. The radiographs were randomly analyzed by 54 specialists, 27 orthodontists and 27 OMFS, to obtain the opinion about the approach to be adopted to these teeth in PR1. Then, another opinion was collected by adding a serial radiograph (PR1+2). Results: The concordance of the answers was moderate for OMFS (Kappa 0.44; p< 0.0001) and significant for orthodontists (Kappa 0.39; p< 0.0001). In the analysis of the first radiograph (PR1) of the spontaneously erupted molars, OMFS indicated extraction in 44.5% of cases, while orthodontists indicated in 42%, with no difference between groups (p= 0.22). In PR1+2 analysis, orthodontists maintained the same level of extraction indication (45.6%, p= 0.08), while surgeons indicated more extractions (63.2%, p< 0.0001). Conclusions: Orthodontists and OMFS were not able to predict the eruption of the third molars that have erupted spontaneously. Both indicated extractions around half of the third molars. A follow-up analysis, including one more radiograph, did not improve the accuracy of prognosis among orthodontists and worsened for OMFS.


RESUMO Objetivo: Avaliar a habilidade de ortodontistas e cirurgiões bucomaxilofaciais (CBMF) em propor um prognóstico para terceiros molares inferiores. Métodos: Foram analisados 22 pacientes tratados ortodonticamente sem extração, cujos terceiros molares inferiores irrompidos espontaneamente (n= 44) foram avaliados por meio de radiografias panorâmicas seriadas. A primeira radiografia foi obtida logo após o tratamento ortodôntico (RX1), entre 13 e 19 anos de idade. A segunda radiografia (RX2) foi avaliada dois anos depois, em média. As radiografias foram analisadas aleatoriamente por 54 especialistas, 27 ortodontistas e 27 CBMFs, para obter sua opinião sobre a abordagem a ser adotada na RX1. Em seguida, outra opinião foi coletada adicionando-se a segunda radiografia seriada (RX1+2). Resultados: A concordância das respostas foi moderada para os CBMFs (Kappa = 0,44; p< 0,0001) e significativa para os ortodontistas (Kappa = 0,39; p< 0,0001). Após analisar apenas a primeira radiografia (RX1) dos molares antes deles irromperem espontaneamente, os CBMFs indicaram extração em 44,5% dos casos; enquanto os ortodontistas, em 42%, sem diferença entre os grupos (p= 0,22). Na análise de RX1+2, os ortodontistas mantiveram o mesmo nível de indicação de extração (45,6%, p= 0,08), enquanto os cirurgiões passaram a indicar mais extrações (63,2%, p< 0,0001). Conclusões: Ortodontistas e CBMFs não foram capazes de predizer a erupção de terceiros molares por meio da análise de uma única radiografia panorâmica, indicando extrações em cerca da metade dos terceiros molares examinados. Uma análise de acompanhamento, incluindo mais uma radiografia, não melhorou a precisão do prognóstico entre os ortodontistas, e piorou entre os CBMFs.


Subject(s)
Humans , Tooth, Impacted/diagnostic imaging , Molar, Third/surgery , Molar, Third/diagnostic imaging , Tooth Eruption , Tooth Extraction , Radiography, Panoramic , Oral and Maxillofacial Surgeons , Orthodontists , Mandible/diagnostic imaging , Molar
4.
Rev. Cient. CRO-RJ (Online) ; 5(2): 61-64, May-Aug. 2020.
Article in English | LILACS, BBO | ID: biblio-1254131

ABSTRACT

Introduction: Dentigerous cyst is an odontogenic cyst lesion surrounding the crown of an unerupted or impacted tooth in the jaw. Objective: The aim of this case report is to describe the treatment planning and follow-up of a dentigerous cyst associated with the impaction of the permanent mandibular right canine tooth in an 11-year-old female. Case report: Radiographic assessment revealed a radiolucent unilocular round-shaped lesion localized in the mandibular symphysis. Enucleation was performed and the affected tooth was removed under general anesthesia. The patient is under follow-up due to orthodontic treatment. The affected area healed without complications. Conclusion: Two and a half years after the enucleation, the cyst had totally disappeared, and no recurrences were observed. Bone remodeling and neoformation were noticed.


Introdução: O cisto dentígero é uma lesão odontogênica ao redor da coroa de um dente não irrompido ou impactado na mandíbula. Objetivo: O objetivo deste relato de caso é descrever o plano do tratamento e o acompanhamento de um cisto dentígero associado à impactação do canino permanente inferior direito em uma criança do gênero feminino de 11 anos de idade. Relato do caso: A avaliação radiográfica revelou lesão unilocular radiolúcida de forma arredondada, localizada na sínfise mandibular. A enucleação foi realizada e o dente afetado foi removido sob anestesia geral. A paciente encontra-se em acompanhamento devido o tratamento ortodôntico. A área afetada curou sem complicações. Conclusão: Dois anos e meio após a enucleação, o cisto desapareceu totalmente e não houve recidivas. Remodelação óssea e neoformação foram observadas.


Subject(s)
Humans , Female , Child , Tooth, Impacted/diagnostic imaging , Dentigerous Cyst/diagnostic imaging , Cuspid/diagnostic imaging , Tooth, Impacted/surgery , Dentigerous Cyst/surgery , Follow-Up Studies , Treatment Outcome , Cuspid/surgery
5.
Gac. méd. Méx ; 156(1): 22-26, ene.-feb. 2020. tab, graf
Article in Spanish | LILACS | ID: biblio-1249865

ABSTRACT

Resumen Introducción: Las clasificaciones de Pell y Gregory y de Winter son básicas en la categorización de terceros molares; la clasificación de Sánchez Torres es usada en México, pero no había sido evaluada previamente. Objetivo: Evaluar el grado de acuerdo en la valoración radiográfica de terceros molares mandibulares impactados, con el empleo de tres clasificaciones: Pell y Gregory, Winter y Sánchez Torres. Método: Estudio observacional, descriptivo, de concordancia interobservador, que incluyó a 10 cirujanos orales y maxilofaciales y 10 residentes en formación, quienes registraron la categorización radiográfica de terceros molares mandibulares (izquierdos y derechos) de acuerdo con las clasificaciones de Pell y Gregory, Sánchez Torres y Winter. Se evaluó el grado de acuerdo entre observadores mediante la prueba de kappa de Fleiss. Resultados: La clasificación de Pell y Gregory obtuvo el menor grado de acuerdo (kappa = 0.05 y 0.185), seguida de la clasificación de Sánchez Torres (kappa = 0.125 y 0.326); el mejor valor lo obtuvo la clasificación de Winter, con kappa = 0.28 y 0.636 para cirujanos orales y maxilofaciales y residentes en formación, respectivamente. Conclusión: La clasificación de Winter mostró un grado de acuerdo aceptable (moderado) para categorizar terceros molares mandibulares en los residentes en formación.


Abstract Introduction: Pell & Gregory and Winter classifications are basic in third molar categorization; Sánchez-Torres classification is used in Mexico, but it has not been previously evaluated. Objective: To assess the degree of agreement in the radiographic evaluation of impacted mandibular third molar with the use of three classifications: Pell & Gregory, Winter and Sánchez-Torres. Method: Observational, descriptive, inter-observer degree of agreement study that included 10 oral and maxillofacial surgeons and 10 training residents, who recorded the radiographic categorization of third mandibular molars (left and right) according to Pell and Gregory, Sánchez-Torres and Winter classifications. Inter-observer degree of agreement was assessed with Fleiss' kappa test. Results: Pell and Gregory classification obtained the lowest degree of agreement (kappa = 0.05 and 0.185), followed by Sánchez-Torres classification (kappa = 0.125 and 0.326); Winter had the best agreement, with kappa = 0.28 and 0.636 for oral and maxillofacial surgeons and training residents, respectively. Conclusion: The Winter classification showed an acceptable (moderate) degree of agreement to classify mandibular third molars by training residents.


Subject(s)
Humans , Tooth, Impacted/classification , Oral and Maxillofacial Surgeons , Molar, Third/diagnostic imaging , Tooth, Impacted/diagnostic imaging , Observer Variation , Internship and Residency , Mandible , Mexico
6.
Rev. ADM ; 77(1): 6-10, ene.-feb. 2020. ilus, tab, graf
Article in Spanish | LILACS | ID: biblio-1087675

ABSTRACT

Objetivo: Evaluar la eficacia de la radiografía panorámica para establecer la relación de los terceros molares superiores y la cortical inferior del seno maxilar, en comparación con la tomografía computarizada de haz cónico (CBCT). Material y métodos: El trabajo incluyó 72 pacientes, se estudiaron 34 terceros molares superiores retenidos izquierdos y 38 derechos. Se realizaron mediciones con el programa para establecer la distancia entre la cortical inferior del seno maxilar y el ápice del tercer molar superior a partir de la imagen de la radiografía panorámica en lo que se estableció como parámetros: «a distancia, en contacto y dentro del piso de seno maxilar¼. Luego, con los cortes oblicuos o paraaxiales de la tomografía computarizada (CBCT) se observó la verdadera ubicación en el plano bucopalatino. Resultados: Del total de los terceros molares superiores 34 fueron izquierdas (47.22%) y 38 derechas (52.78%). En la Rx. Panorámica, 18 casos (25%) se encontraron a distancia al seno maxilar, 12 en contacto (16.7%) y 42 por dentro (58.3%) del seno maxilar. En la tomografía se observaron 20 casos (27.8%) a distancia del conducto, 16 (22.2%) en contacto y 36 (50%) por dentro del seno maxilar. Se observaron diferencias estadísticamente significativas (p < 0.05) entre la Rx. panorámica y la tomografía (CBCT) de los terceros molares que se hallan por dentro del seno maxilar. Conclusión: A partir de los resultados obtenidos, podemos establecer que la radiografía panorámica no permite conocer la verdadera relación entre la cortical inferior del seno maxilar y los terceros molares superiores (AU)


Objective: To evaluate the effectiveness of panoramic radiography to establish the relationship of the upper third molars and the inferior cortical of the maxillary sinus, in comparison with the Cone Beam Computed Tomography (CBCT). Material and methods: The work included 72 patients, 34 upper left maxillary molars and 38 rights were studied. Measurements were made with the program to establish the distance between the lower cortex of the maxillary sinus and the apex of the upper third molar from the image of the panoramic radiograph in what was established as parameters: «at a distance, in contact and inside the floor of maxillary sinus¼. Then with the oblique or paraaxial slices of the computed tomography (CBCT) the true location in the bucco-palatal plane was observed. Results: Of the total upper third molars, 34 were left (47.22%) and 38 right (52.78%). In the panoramic X-ray 18 cases (25%) were found at distance to the maxillary sinus, 12 in contact (16.7%) and 42 inside (58.3%) of the maxillary sinus. The tomography showed 20 cases (27.8%) at a distance from the canal, 16 (22.2%) in contact and 36 (50%) inside the maxillary sinus. Statistically significant differences were observed (p < 0.05) between the Rx. panoramic and tomography (CBCT) of the third molars that are inside the maxillary sinus. Conclusion: From the results obtained, we can establish that the panoramic radiograph does not allow knowing the true relationship between the inferior cortical of the maxillary sinus and the upper third molars (AU)


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Tooth, Impacted/diagnostic imaging , Radiography, Panoramic , Cone-Beam Computed Tomography , Molar, Third/diagnostic imaging , Argentina , Epidemiology, Descriptive , Retrospective Studies , Data Interpretation, Statistical , Maxilla , Maxillary Sinus/anatomy & histology
7.
Article in English | LILACS, BBO | ID: biblio-1135492

ABSTRACT

Abstract Objective: To assess the patterns of mandibular third molar impaction in an Iranian subpopulation. Material and Methods: This retrospective descriptive study evaluated 1000 panoramic radiographs retrieved from the archives of a private radiology clinic in Kermanshah city, Iran. Depth of impaction, position of impacted mandibular third molar relative to the mandibular ramus according to Pell and Gregory's classification and angle of impacted tooth according to Winter's classification were determined. Data were analyzed using the Chi-square and Wilcoxon tests. Results: Of 1000 radiographs, 230 (23%) showed an impaction of at least one mandibular third molar. Mandibular third molar impaction was more common in females (60%). Mesioangular (35.9%) and vertical (34.8%) impactions were the most common angles of impaction in the right and left sides, respectively. Level C (40.3%) and Class I (63.7%) were the most common types of impaction in terms of depth of impaction and position relative to ramus, respectively. No significant difference was observed between the right and left sides of the mandible in terms of patterns of mandibular third molar impaction (p>0.05). Conclusion: Mandibular third molar impaction was relatively common in the studied population. The mesioangular, level C and Class I impaction patterns were the most frequent.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Middle Aged , Surgery, Oral/instrumentation , Tooth, Impacted/diagnostic imaging , Radiography, Panoramic/instrumentation , Iran/epidemiology , Molar, Third/surgery , Chi-Square Distribution , Epidemiology, Descriptive , Cross-Sectional Studies/methods , Retrospective Studies , Mandible
8.
Rev. ADM ; 76(6): 343-346, nov.-dic. 2019. ilus
Article in Spanish | LILACS | ID: biblio-1087530

ABSTRACT

En raras ocasiones, el canino mandibular derecho o izquierdo se coloca en el lado opuesto al habitual. Esta perturbación se define como la transmigración. Existen diversas teorías de su etiología, así como factores que la condicionan. La transmigración mandibular es un término que no está descrito en la literatura contemporánea y son pocos los casos reportados a nivel mundial. Presentamos un caso de trasmigración de canino mandibular derecho, posicionado por debajo del agujero mentoniano de lado izquierdo, cerca del borde basal mandibular, el cual se extrajo bajo anestesia general. Presentamos la etiología, técnica quirúrgica y consideraciones especiales en casos de trasmigración de canino mandibular (AU)


In rare occasions right or left mandibular canine is positionated at opposed side of habitual. This disturbance is defined as transmigration. There exist diverse theories about its etiology as well as conditioning factors. Mandibular transmigration is a non described term in modern literature and there are only a few reported cases at world level. We present one case of right canine transmigration positionated intimately below of left side mentonian hole near of mandibular basal edge which it was extracted under general anesthesia. We present also the etiology, surgical technique and special considerations of mandibular canine transmigration cases (AU)


Subject(s)
Humans , Female , Adult , Tooth Eruption, Ectopic , Tooth, Impacted/surgery , Tooth, Impacted/etiology , Cuspid/abnormalities , Tooth Extraction , Tooth, Impacted/diagnostic imaging , Cone-Beam Computed Tomography , Mexico
9.
Int. j. med. surg. sci. (Print) ; 6(1): 10-13, mar. 2019.
Article in English | LILACS | ID: biblio-1247551

ABSTRACT

The extraction of impacted third molars is among the most common surgical procedures carried out in the field of Oral and Maxillofacial Surgery. Both the patient and dentist must therefore have scientific evidence-based information concerning the estimated level of surgical difficulty of every case to consider in referring cases of impacted third molars for specialists' handling. We have undertaken a study in which demographic and radiological variables were considered to-gether to evaluate the risk factors for surgical difficulty in a cohort of 100 impacted mandibular third molars. There were 13 variables evaluated for surgical difficulty. Total surgical time interven-tion was noted at the end of each surgery. Each variable was analysed with total surgical time intervention with univariate and multiple linear regression. Out of 13 variables, 9 were found sta-tistically significant. The most significant predictors for surgical difficulty were Body Mass Index, Depth of impacted tooth and Retromolar space. No postoperative complications were reported.


Subject(s)
Humans , Tooth Extraction , Tooth, Impacted/epidemiology , Tooth, Impacted/diagnostic imaging , Molar, Third/diagnostic imaging , Time Factors , Tooth, Impacted/surgery , Radiography, Dental , Prospective Studies , Age Distribution , Molar, Third/surgery
10.
Dental press j. orthod. (Impr.) ; 23(3): 37-46, May-June 2018. graf
Article in English | LILACS | ID: biblio-953031

ABSTRACT

ABSTRACT Introduction: Tooth dilacerations are dental anomalies characterized by an abrupt deviation in the longitudinal axis of a tooth. They may occur either in the crown, between the crown and root, or in the root. Although not so common, impacted maxillary incisors exhibiting root dilaceration pose a diagnostic and treatment challenge to the clinician. Description: This case report describes the management of a horizontally impacted and dilacerated maxillary central incisor in a 12-year-old girl. Cone-beam computed tomographic scans were used to accurately localize the position of the dilacerated tooth, and to assess the extent of root formation and degree of dilaceration present in the root. Treatment included surgical exposure and orthodontic traction, followed by root canal treatment and apicoectomy. Results: Through a meticulously planned interdisciplinary approach, the impacted dilacerated central incisor was properly aligned and demonstrated good stability after the long-term follow-up. Conclusion: Taking into consideration the concerns and expectations of the patient, communicative feedback between the oral surgeon, orthodontist and endodontist helped achieving successful esthetic, structural and functional outcome in the present case.


RESUMO Introdução: as dilacerações dentárias são anomalias caracterizadas por desvio acentuado no eixo longitudinal de um dente. Elas podem ocorrer na coroa, entre a coroa e a raiz, ou na raiz. Apesar de não serem muito comuns, os incisivos superiores impactados apresentando dilaceração radicular representam um desafio para o clínico, quanto ao diagnóstico e tratamento. Descrição: o presente relato de caso descreve o tratamento de um incisivo central superior impactado horizontalmente e com dilaceração, em uma menina com 12 anos de idade. Tomografias computadorizadas de feixe cônico foram utilizadas para localizar com precisão a posição do dente dilacerado e avaliar o grau de formação e de dilaceração da raiz. O tratamento incluiu exposição cirúrgica e tração ortodôntica, seguida de tratamento do canal radicular e apicectomia. Resultados: por meio de uma abordagem interdisciplinar meticulosamente planejada, o incisivo central impactado com dilaceração foi devidamente alinhado e demonstrou boa estabilidade em acompanhamento de longo prazo. Conclusão: levando-se em consideração as preocupações e expectativas da paciente, a comunicação interativa adotada entre o cirurgião oral, ortodontista e o endodontista ajudou na obtenção de resultados estéticos, estruturais e funcionais satisfatórios no presente caso.


Subject(s)
Humans , Female , Child , Patient Care Team , Tooth, Impacted/therapy , Incisor/abnormalities , Apicoectomy , Patient Care Planning , Root Canal Therapy , Tooth, Impacted/surgery , Tooth, Impacted/diagnostic imaging , Interdisciplinary Communication , Cone-Beam Computed Tomography , Orthodontic Appliances, Fixed , Incisor/surgery , Maxilla
11.
J. appl. oral sci ; 26: e20170396, 2018. tab, graf
Article in English | LILACS, BBO | ID: biblio-954525

ABSTRACT

Abstract It is necessary to preserve height and thickness of the alveolar bone to facilitate rehabilitation with osteointegratable implants or simply to maintain bone integrity after extraction. Biomaterials associated with resorbable or non-resorbable membranes, when placed in the region of the socket, may contribute to avoid this unwanted reabsorption. Objective The objective of this study was to evaluate the distance of the crest of alveolar ridge to the cementoenamel junction (CEJ) of the lower second molars and the bone density of the third molar socket filled with Gen-Tech®, 5 years after an exodontia using cone beam computed tomography (CBCT) to visualize the central region of the sockets, without overlapping of the buccal and lingual cortical bones. Material and Methods A total of 12 individuals from an initial group of 39 patients submitted to extraction of the unruptured lower third molars and grafting of an association of inorganic bovine bone matrix, organic bovine bone matrix, collagen and bone morphogenetic proteins (BMP) (Gen-Tech®) on one side and the contralateral sockets filled only by clot, returned to control after 5 years, and were submitted to CBCT. The distance from the crest of alveolar bone to the CEJ and the bone density (BD) were measured using the i-CAT Vision Software. Results The results showed that the distance from the crest of alveolar bone to the CEJ in the control group was similar to that observed before the exodontia; in the experimental group, this distance was smaller. Considering the BD measurement, a significantly higher density was observed in the experimental group (p<0.05). Conclusion Part of the biomaterial was not absorbed and allowed the stability of the evaluated parameters after 5 years, being able to be used as a bone substitute in the socket.


Subject(s)
Humans , Animals , Male , Female , Adolescent , Adult , Cattle , Young Adult , Tooth, Impacted/diagnostic imaging , Bone Transplantation/methods , Bone Substitutes , Tooth Cervix/diagnostic imaging , Tooth Socket/diagnostic imaging , Heterografts/diagnostic imaging , Molar, Third/diagnostic imaging , Time Factors , Tooth Extraction/methods , Tooth, Impacted/surgery , Materials Testing , Bone Density , Reproducibility of Results , Treatment Outcome , Bone Morphogenetic Proteins/therapeutic use , Tooth Socket/transplantation , Cone-Beam Computed Tomography , Molar, Third/surgery
12.
Int. j. med. surg. sci. (Print) ; 4(4): 1238-1240, dic. 2017. ilus
Article in English | LILACS | ID: biblio-1282096

ABSTRACT

Supernumerary paramolars are the rare anomalies of the maxillofacial complex. These are more common in the maxilla than in the mandible. Supernumerary teeth are an infrequent developmental alteration that can appear in any area of the dental arches and which are often associated with several syndromes such as cleidocranial dysplasia or Gardner syndrome. Multiple supernumerary teeth in individuals with no other associated diseases or syndromes are very uncommon. Objective: To evaluate the value of cone-beam CT (CBCT) in the diagnosis and orientation of supernumerary teeth in the dental arches. Treatment: After taking a cone beam computed tomograph (CBCT), surgical extraction was performed under local anaesthesia. Conclusion: The position of the supernumerary teeth is varied in the maxilla, and often causes permanent dentition complications. CBCT imaging yields accurate 3-dimensional pictures of supernumerary teeth, local dental and bony structures, which is helpful for diagnosis and orientation of supernumerary teeth. Cone beam computed tomography is crucial for exact localization, for treatment planning, and for the surgical approach in cases of multiple supernumerary teeth.


Subject(s)
Humans , Tooth, Impacted/diagnostic imaging , Tooth, Supernumerary/diagnostic imaging , Cone-Beam Computed Tomography/methods
13.
Rev. ADM ; 74(4): 202-205, jul.-ago. 2017. ilus
Article in Spanish | LILACS | ID: biblio-908024

ABSTRACT

Los dientes ectópicos son órganos dentarios que se encuentran enuna región diferente a la habitual, existen publicaciones que reportanórganos dentarios ectópicos en la región maxilofacial siendo sitioscomunes el paladar, región paraorbitaria, cavidad nasal, seno maxilar, mentón, apófisis corónides y cóndilo. También se han publicado casos de zonas más alejadas como ovario o región anterior del mediastino,que por lo general están relacionados con un teratoma. En su mayoría son hallazgos radiográficos, por lo que en general son asintomáticos. Al encontrarse dentro del seno maxilar su terapéutica puede ser conservadora,bajo vigilancia clínica-radiográfi ca o quirúrgica mediante endoscopia, abordaje transnasal, Caldwell-Luc o abordaje cuadrangular. La extracción de estos órganos dentarios es necesaria por la tendencia que presentan a formar quistes, desarrollar tumores odontogénicos y desencadenar alteraciones neuropáticas. Se reporta el caso de una paciente de 32 años de edad con diagnóstico de tercer molar ectópico en región de antro maxilar.


Ectopic tooth are dental organs found in a uncomon regions. There arepublication that report ectopic tooth in the maxillofacial region beingcommon sites palate, paraorbitaria region, nasal cavity, maxillarysinus, chin, coronides process and condyle. Cases have also beenreported in non-dental areas such as ovary, anterior mediastinum regionusually related to a teratoma. Ectopic tooth are often radiographicfi ndings because they are generally asymptomatic. Its therapeuticwhen found in the maxillary sinus could be conservative under periodicclinical-radiographic vigilance. Removal of these dental organs isnecessary for their tendency to form cysts, develop odontogenic tumorsand trigger neuropathic disorders. Surgical options are endoscopic,transnasal, Caldwell Luc or quadrangular approach. We present acase of a female of 32 years old with a diagnosis of ectopic third molarin maxillary antrum.


Subject(s)
Female , Humans , Adult , Maxillary Sinus , Molar, Third/abnormalities , Molar, Third/surgery , Tooth Eruption, Ectopic/complications , Tooth Eruption, Ectopic/diagnostic imaging , Tooth Eruption, Ectopic/surgery , Tooth, Impacted/diagnostic imaging , Ecuador , Prognosis , Tooth Extraction/methods , Tooth, Impacted/surgery
14.
Int. j. odontostomatol. (Print) ; 11(1): 61-65, abr. 2017. ilus
Article in English | LILACS | ID: biblio-841017

ABSTRACT

Panoramic radiographs are important for the evaluation and classification of the third molars position, allowing the diagnosis and planning of extraction. The objective of this study is to evaluate upper and lower third molars positions in panoramic radiographs with the classification methods proposed by Pell and Gregory (1933) and Winter (1926) and the subsequent comparison of results with other authors. Panoramic radiographs of 310 patients were analyzed, 197 female and 113 male, totaling 1,211 third molars. In relation to the upper third molars, the most prevalent positions were: angle compared to the long axis of the second molar of Distoangular form (53.23 %) and the depth of impaction as Class C (48.25 %). In the lower third molars, the most prevalent positions were: angle to the long axis of the second molar in Mesioangular classification (52.96 %), the depth of impaction was B (46.54 %) and the tooth relationship with the mandibular ramus was identified as class I (55.26 %). These results provide information that can be utilized in predicting third molar development in terms of impaction or eruption, assisting dental surgeons in making decisions regarding surgical planning and treatment.


Las radiografías panorámicas son importantes para la evaluación y clasificación de la posición de los terceros molares, lo que permite el diagnóstico y la planificación de la extracción. El objetivo de este estudio fue evaluar terceros molares superiores e inferiores y posiciones en las radiografías panorámicas con los métodos de clasificación propuestas por Pell & Gregory, y Winter y la posterior comparación de los resultados con otros autores. Se analizaron las radiografías panorámicas de 310 pacientes, 197 mujeres y 113 hombres, con un total de 1.211 terceros molares. En relación con los terceros molares superiores, las posiciones más prevalentes fueron: ángulo con respecto al eje longitudinal del segundo molar de forma distoangular (53,23 %) y la profundidad de la impactación como Clase C (48,25 %). En los terceros molares inferiores, las posiciones más prevalentes fueron: ángulo con respecto al eje longitudinal del segundo molar en la clasificación mesioangular (52,96 %), la profundidad de impactación fue de B (46,54 %) y la relación de los dientes con la rama mandibular fue identificado como Clase I (55,26 %). Estos resultados proporcionan información que puede ser utilizada para predecir el desarrollo del tercer molar en términos de compactación o erupción, ayudando a los cirujanos dentistas en la toma de decisiones respecto a la planificación y el tratamiento quirúrgico.


Subject(s)
Humans , Male , Female , Adolescent , Adult , Young Adult , Molar, Third/anatomy & histology , Molar, Third/diagnostic imaging , Tooth, Impacted/diagnostic imaging , Prevalence , Radiography, Panoramic , Tooth, Impacted/classification , Tooth, Impacted/epidemiology
15.
Article in Spanish | LILACS | ID: biblio-844735

ABSTRACT

RESUMEN: La no erupción de segundos molares es relativamente baja, pero ha ido en aumento en los últimos años. Se relaciona con un tratamiento multidisciplinario largo, costoso y complejo, por lo cual es de suma importancia enfocarse en el diagnóstico precoz y tratamiento temprano. El objetivo de este estudio es poder hacer una comparación de medidas radiográficas entre un grupo de pacientes con segundo molar mandibular permanente no erupcionado o sin posibilidades de erupcionar y un grupo control. Método: Se realizó una revisión manual consecutiva de las 16.835 fichas sobre las cuales se aplicaron criterios de inclusión y exclusión. Los datos se obtuvieron de radiografías panorámicas de las cuales se obtuvieron medidas lineales y angulares que fueron comparados entre dos grupos de estudio. Se desarrolló un modelo predictivo mediante análisis discriminante. Resultados: El 1,5% de los pacientes tuvieron segundos molares no erupcionados. Los promedios de las variables relevantes fueron: Ángulo del segundo molar 33,7°; distancia desde distal del primer molar al borde anterior de la rama mandibular 15mm; invasión distal del primer molar por el segundo molar 2,1mm; inclinación mesial de segundo molar con respecto al plano oclusal 128° y al plano mandibular 63°. El puntaje crítico discriminante fue de 36,7. Conclusión: La presencia de segundos molares incluidos es baja. Se encontró diferencias estadísticamente significativas entre casos y controles en todas las variables. El modelo predictivo puede identificar molares sin probabilidad de erupción natural. Es necesario contar con nuevos estudios con muestras poblacionales para establecer cuáles serían los valores de normalidad para poder diagnosticar en forma precoz esta condición.


ABSTRACT: No eruption of seconds is relatively low, has been increasing in recent years. It relates to long, costly and complex multidisciplinary treatment, so it is important to focus on early diagnosis and early treatment. The aim of this study is to make a comparison of radiographic measurements among a group of patients with mandibular second permanent molar eruption and no possibility of a control group. Method: A consecutive manual review of 16,835 sheets on which inclusion and exclusion criteria were applied. The data were obtained from panoramic radiographs of which linear and angular measurements were compared between two study groups were obtained. A predictive model was developed using discriminant analysis. Results: 1.5% of patients had unerupted second molars. The averages of the relevant variables were: Angle of the second molar 33.7 °; distance from distal of the first molar to the anterior border of the ramus 15 mm; invasion distal of the first molar the second molar 2.1mm; second molar mesial inclination relative to the occlusal plane 128 ° and 63 ° mandibular plane. The critical discriminant score was 36.7. Conclusion: Statistically significant differences between cases and controls was found in all variables. The predictive model can identify likely molars with or without natural eruption. It is necessary to have further studies with population samples to establish what would be the normal values to diagnose this condition at an early stage.


Subject(s)
Humans , Molar , Radiography, Panoramic , Tooth, Impacted/diagnostic imaging , Tooth, Unerupted/diagnostic imaging , Mandible
16.
J. appl. oral sci ; 25(1): 75-81, Jan.-Feb. 2017. tab, graf
Article in English | LILACS, BBO | ID: biblio-841170

ABSTRACT

Abstract Objective The aim of this retrospective study was to evaluate the long-term effects of orthodontic traction on root length and alveolar bone level in impacted canines and adjacent teeth. Material and Methods Sample consisted of 16 patients (nine males and seven females), mean initial age 11 years and 8 months presenting with unilaterally maxillary impacted canines, palatally displaced, treated with the same surgical and orthodontic approach. Teeth from the impacted-canine side were assigned as Group I (GI), and contralateral teeth as control, Group II (GII). The mean age of patients at the end of orthodontic treatment was 14 years and 2 months and the mean post-treatment time was 5 years and 11 months. Both contralateral erupted maxillary canines and adjacent teeth served as control. Root length and alveolar bone level (buccal and palatal) were evaluated on cone-beam computed tomography (CBCT) images. The comparison of root length and alveolar bone level changes between groups were assessed by applying paired t-test, at a significance level of 5% (p<0.05). Results There were no statistically significant differences in root length and buccal and palatal bone levels of canines and adjacent teeth among groups. Conclusions Impacted canine treatment by closed-eruption technique associated with canine crown perforation, has a minimal effect on root length and buccal and palatal alveolar bone level in both canine and adjacent teeth, demonstrating that this treatment protocol has a good long-term prognosis.


Subject(s)
Humans , Male , Female , Child , Tooth, Impacted/therapy , Tooth Movement Techniques/adverse effects , Tooth Root/pathology , Cuspid/pathology , Orthodontic Extrusion/adverse effects , Alveolar Process/pathology , Root Resorption/etiology , Time Factors , Tooth Eruption, Ectopic/etiology , Tooth, Impacted/diagnostic imaging , Tooth Movement Techniques/methods , Tooth Root/diagnostic imaging , Reproducibility of Results , Retrospective Studies , Risk Factors , Alveolar Bone Loss/etiology , Treatment Outcome , Statistics, Nonparametric , Cuspid/diagnostic imaging , Orthodontic Extrusion/methods , Cone-Beam Computed Tomography , Alveolar Process/diagnostic imaging
17.
Pesqui. bras. odontopediatria clín. integr ; 17(1): e3613, 13/01/2017. ilus, graf
Article in English | LILACS, BBO | ID: biblio-914470

ABSTRACT

Objective: To assess and compare the crown and root lengths of impacted maxillary central incisors with contralateral teeth, using cone-beam computed tomography (CBCT). Material and Methods: Sample comprised twenty-six patients (15 males, 11 females), ranging from seven to 14 years old, with unilateral impaction of maxillary central incisors. Landmarks demarcation was performed (I) at the root apex, (II) at the incisal edge, and (III) at the midpoint between the buccal and lingual cementoenamel junction (CEJ). Linear measures were taken alongside teeth long axis, with the aid of the software tools. Crown length was considered the distance between the incisal edge and CEJ; and root length was the distance between CEJ and the root apex. Crown and root length measures were obtained in cone beam computed tomography images using the In Vivo® Software. Measurements were compared between the impacted maxillary central incisors and contralateral teeth using paired t-test. Results: Crown and root lengths were statistically shorter (0.56 mm and 3.22 mm, respectively) in the impacted maxillary central incisors when compared to their contralateral teeth (p<0.001). This trend with regard the root length was observed in 25 out of 26 subjects, as well as in 21 subjects with regard the crown length. Conclusion: Decision-making process on the treatment plan for impacted maxillary central incisors must consider that these teeth have in average the crown lengths five per cent shorter and the root lengths 25 per cent shorter than their contralateral teeth.


Subject(s)
Humans , Male , Female , Child , Adolescent , Cone-Beam Computed Tomography/instrumentation , Incisor/diagnostic imaging , Tooth Root/diagnostic imaging , Tooth, Impacted/diagnostic imaging , Analysis of Variance , Brazil , Observational Studies as Topic/methods , Statistics, Nonparametric
18.
Rev. Fac. Odontol. (B.Aires) ; 31(71): 13-16, jul.-dic. 2016. ilus
Article in Spanish | LILACS | ID: biblio-869416

ABSTRACT

La impactación de los segundos molares inferiores permanentes es una patología con una incidencia del 0.03 or ciento a 0.04 por ciento del total de dientes retenidos, que en la mayoría de los casos debido a una posición impredecible del tercer molar, el resultado final es la exodoncia de ambas piezas dentarias.Dentro de los dispositivos de anclaje temporal, existen dos tipos, los minimplantes y las miniplacas. A través de este caso clínico se demuestra la eficiencia de las miniplacas en la verticalización de los segundos molares inferiores impactados sobre otras medidas terapéuticas debido a que su uso es un método predecible, rápido y seguro que no genera efectos secundarios indeseables. Además, estas miniplacas son colocadas a distancia de las piezas dentarias, por lo que no interfiere en los movimientos dentales.


Mandibular second molar impaction is a pathology with an incidence of 0.03% - 0.04% of the total of the impacted teeth due to animpredictible position of the third molar in most cases. As a consequence, where the final result is dental extraction of both teethThere are two types of temporary skeletal anchorage devices minimplants and miniplates. This case shows the miniplate efficiency in thesecond molar verticalization which is a predictible, fast and safe method without any side effects when compared with other treatments.In addition, miniplantes do not interfere with dental movements because they are placed far enough from the teeth.


Subject(s)
Humans , Female , Child , Tooth, Impacted/therapy , Orthodontic Anchorage Procedures/instrumentation , Tooth Movement Techniques/instrumentation , Tooth Movement Techniques/methods , Tooth, Impacted/diagnostic imaging , Dental Implantation, Endosseous/methods , Mandible , Molar/physiopathology , Radiography, Panoramic , Schools, Dental
19.
Dental press j. orthod. (Impr.) ; 21(5): 95-102, Sept.-Dec. 2016. graf
Article in English | LILACS | ID: biblio-828661

ABSTRACT

ABSTRACT Introduction: Temporary anchorage devices (TADs) have been developed to be used as direct adjuncts in orthodontic treatment and have facilitated treatment of more complex orthodontic cases, including patients with dental impaction. Objectives: This clinical case reports the applicability of TADs in the orthodontic treatment of a patient with impacted mandibular second molars. Surgical and orthodontic procedures related to the use of miniplates were also discussed in this study. Conclusions: The use of temporary anchorage devices, such as miniplates, can be suggested as an alternative to treat patients with impacted mandibular second molars.


RESUMO Introdução: os dispositivos de ancoragem temporária vêm sendo desenvolvidos para uso como coadjuvantes no tratamento ortodôntico. Esses dispositivos facilitam o tratamento ortodôntico de casos mais complexos, incluindo pacientes com dentes impactados. Objetivos: o presente relato de caso reporta a aplicabilidade dos dispositivos de ancoragem temporária no tratamento ortodôntico de um paciente com segundos molares inferiores impactados. Os procedimentos cirúrgicos e ortodônticos relacionados ao uso das miniplacas também são discutidos nesse estudo. Conclusões: o uso de dispositivos de ancoragem temporária, tais como as miniplacas, pode ser sugerido como uma alternativa no tratamento de pacientes com segundos molares inferiores impactados.


Subject(s)
Humans , Male , Adolescent , Orthodontics, Corrective/instrumentation , Orthodontic Appliance Design , Orthodontic Anchorage Procedures/instrumentation , Radiology , Tooth, Impacted/therapy , Tooth, Impacted/diagnostic imaging , Miniaturization , Molar/diagnostic imaging
20.
Rev. Ateneo Argent. Odontol ; 55(2): 31-37, 2016. ilus
Article in Spanish | LILACS | ID: biblio-869397

ABSTRACT

Los caninos superiores permanentes, estadísticamente, se encuentran entre las piezas dentarias que con más frecuencia quedan en retención ósea,después de los terceros molares.Sin embargo, los caninos, estética, funcionalmente, y para mantenimiento de las relaciones contactantes,a la hora de valorarlos en boca, desempeñan una función más importante que los terceros molares. Por eso la importancia de poder ubicarlos en el arco dentario. Cuando los ortodoncistas, sobre todo los menos experimentados, se enfrentan a la decisión de conservar los caninos que se encuentran en posiciones deretención ósea palatina, son muchos los interrogantes que se le plantean sobre su posible ubicación con éxito, en el arco dentario. Frecuentemente está la duda de cuál es el límite de la posición de retención para intentar su acomodamiento. Proponemos un simple trazado que se puede hacersobre la ortopantomografia panorámica, marcando dos líneas tangentes a la pared externa delas fosas nasales que se continuarán con los ejes longitudinales de los caninos retenidos de ambos lados. Si queda constituida una figura geométrica de apariencia de un rombo, significa que el extremo de la raíz se encuentra próximo a la posición que anatómicamente le pertenece (fosa canina del maxilar superior), existiendo una alta probabilidad de concluir con éxito su ubicación en el arco dentario.


Statiscally, permanent upper canines are the mostfrequently impacted teeth, after third molars.Upper canines though, have more significancethan third molars aesthetically, functionally andin maintaining contacting relations;thus the importance of bringing them inthe correct position within the dental arch.When an Orthodontist, particularly those lessexperienced, are faced with the decision ofmaintaining canines impacted in the palatal bone;many questions linger regarding the possibilitiesof successful relocation into the dental arch.Frequently, the question lays in the limitationsof moving it from its impacted positionto the correct one.We propose a simple tracing of theOrthopantomogram (OPG), marking twotangent lines to the lateral wall of the nasal cavitycontinuing on the long axis of the impactedcanines of both sides. If the result is a geometricfigure resembling a rhombus, it means thatthe radicular apex is close to the correctanatomical position (maxillary canine fossa),indicating high probabilities of successfullypositioning the impacted tooth.


Subject(s)
Humans , Cuspid/physiopathology , Tooth, Impacted/diagnostic imaging , Radiography, Panoramic/methods , Dental Arch/anatomy & histology , Palate/anatomy & histology
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