ABSTRACT: Mesiodens is the supernumerary tooth that originates in the premaxilla, considered the most prevalent or, the most diagnosed due to the multiple alterations that produce and that include malposition of the permanent teeth, formation of gaps, delayed eruption of the upper anterior incisors and cyst formation. The etiology of mesiodens is not fully established, although it is thought that it may be due dental lamina alteration or other genetic factors. Diagnosis is usually late because most remain unerupted, and can generate dentomaxillary complications that are ultimately the reason for patient consultation. The dentigerous cyst is a developmental odontogenic cyst associated with the crown of an included, numerary or supernumerary tooth and its treatment is surgery. Early diagnosis and treatment planning should consider a careful history, clinical examination, and 3D imaging. The surgery must consist of the disinclusion of the offending tooth, the exeresis and curettage of the lesion, with or without immediate bone regeneration of the surgical bed with a graft. Two cases of a dentigerous cyst associated with a mesiodens that were diagnosed as a radiographic finding are presented. The treatment plan consisted in evaluation and endodontic treatment of devitalized teeth, enucleation and curettage of the cyst, together with the disinclusion of the supernumerary tooth, and long-term clinical and radiographic follow-up.

RESUMEN: El mesiodens es el diente supernumerario que se origina en la premaxila, siendo considerado el más prevalente o el más diagnosticado debido a las numerosas alteraciones que producen y que incluyen malposición de los dientes permanentes, formación de diastemas, retraso en la erupción de los incisivos anteriores superiores, y formación de quistes. La etiología de los mesiodens no está completamente comprendida, aunque se piensa que pueda deberse a la proliferación de la lámina dental u otros factores genéticos. El diagnóstico generalmente es tardío debido a que la mayoría permanece sin erupcionar, pudiendo generar complicaciones dentomaxilares que finalmente son el motivo de consulta de los pacientes. El quiste dentígero es un quiste odontogénico del desarrollo asociado a la corona de un diente incluido, numerario o supernumerario y su tratamiento es quirúrgico. El diagnóstico temprano y la planificación del tratamiento debe considerar una anamnesis minuciosa, un examen clínico e imágenes 3D. La cirugía debe consistir en la desinclusión del diente causal, la exéresis y legrado de la lesión, con o sin regeneración ósea inmediata del lecho quirúrgico con injerto. Se presentan dos casos de quiste dentígero asociado a un mesiodens que se diagnosticaron como hallazgo radiográfico. El plan de tratamiento consistió en evaluación y tratamiento endodóntico de los dientes desvitalizados, enucleción y legrado del quiste, junto a la desinclu sión del diente supernumerario, y seguimiento clínico y radiográfico en el largo plazo.

Aim Dental number anomalies are a group of congenital developmental disorders divided into two groups supernumerary and missing teeth. This study was conducted to investigate the prevalence of numeric dental anomalies using panoramic images in patients referred to the Hamadan Dental Faculty. Methods In this cross-sectional study, 2,197 panoramic radiographs of patients aged 6-49 years were evaluated. These anomalies are divided into two groups: 1) Supernumerary teeth, including Mesiodens, Distodens, and Peridens, and 2) Missing teeth, including Hypodontia, Oligodontia, and Anodontia. A Chi-square test was performed to assess the relationship between the anomalies. Data analysis was performed using SPSS 16, in which P-value < 0.05 was considered the statistical significance level. Results Of 736 males (32.2%) and 1548 females (67.8%) in this study, 32 (4.3%) and 55 cases (3.8%) had supernumerary teeth, respectively. The prevalence of supernumerary teeth was 0.3%, 0.5%, and 0.6% in males and 0.2%, 1% and 1.2% in females for mesiodens, distodens, and peridens, respectively. Also, 243 males (10.6%) and 655 females (28.6%) had missing teeth anomalies. Hypodontia in the maxilla was the most common anomaly in both genders, while mesiodens was the least common. Conclusion Hypodontia was the most common anomaly, followed by peridens; the least common anomaly was mesiodens. The prevalence of supernumerary teeth was greater in males, though the difference was not statistically significant. In comparison, females had a greater prevalence of missing teeth. Faculty crosssectional cross sectional 2197 2 197 2,19 649 6 49 6-4 evaluated 1 Mesiodens Distodens Peridens Oligodontia Anodontia Chisquare Chi square 16 Pvalue P value 005 0 05 0.0 level 73 32.2% 322 (32.2% 154 67.8% 678 67 8 (67.8% 3 4.3% 43 4 (4.3% 5 3.8% 38 (3.8% respectively 03 0.3% 0.5% 06 0.6 02 0.2% 12 1.2 distodens peridens Also 24 10.6% 106 10 (10.6% 65 28.6% 286 28 (28.6% genders significant comparison 219 19 2,1 64 6- 00 0. 7 32.2 (32.2 15 67.8 (67.8 4.3 (4.3 3.8 (3.8 0.3 0.5 0.2 1. 10.6 (10.6 28.6 (28.6 21 2, 32. (32. 67. (67. 4. (4. 3. (3. 10. (10. 28. (28. (32 (67 (4 (3 (10 (28 (6 ( (1 (2

ABSTRACT: This study aims to evaluate the prevalence and patterns of supernumerary teeth in a Peruvian non- syndromic population. This retrospective study used 2500 panoramic radiographs from the archives of a radiology center from Tacna-Peru. Radiographs were taken in 2019 and corresponded to subjects with ages between 8 to 22 years. The patterns of the supernumerary teeth were recorded in a checklist. Descriptive statistics was used for the distribution of supernumerary teeth. The Chi-square test was used to compare the distribution between the patterns. A confidence level of 5 % was used. The prevalence of supernumerary teeth was 5.32 % (n=133), with a male: female ratio of 1.56:1. The most affected arch was the maxilla (79.7 %), single presentation was the most common (87.22 %), and no differences were observed by gender (p > 0.05). Mesiodens was the most frequent (53.38 %), followed by parapremolar (34.59 %) in both genders (p > 0.05). According to the morphology, conical presentation was presented in 46.62 % of the cases, and impacted status were seen in 69.92 %. There were significance differences when the distribution of morphology was compared by the affected arch (p < 0.05). Conical form was most common in the maxilla (53.77 %), meanwhile in the mandible was the euromorphic type (40.74 %). A prevalence of supernumerary teeth of 5.32 % was estimated. The most frequent affected arch was the maxilla. Mesiodens, conical type and impacted were the most frequent patterns.

RESUMEN: Los dientes supernumerarios son anomalías del desarrollo dentario y se pueden clasificar según diferentes patrones. Este estudio tiene como objetivo evaluar la prevalencia y patrones de dientes supernumerarios en una población peruana no sindrómica. Este estudio retrospectivo utilizó 2500 radiografías panorámicas de los archivos de un centro de radiología de Tacna-Perú. Las radiografías se tomaron en 2019 y correspondieron a sujetos con edades entre 8 y 22 años. Los patrones de los dientes supernumerarios se registraron en una lista de verificación. Se utilizó estadística descriptiva para describir la distribución de dientes supernumerarios. Se utilizó la prueba de Chi-cuadrado para comparar la distribución entre los patrones. Se utilizó un nivel de confianza del 5 %. La prevalencia de dientes supernumerarios fue de 5,32 % (n = 133), con una relación hombre: mujer de 1,56:1. El arco más afectado fue el maxilar (79,7 %), la presentación única fue la más común (87,22 %) y no se observaron diferencias por sexo (p > 0,05). Mesiodens fue el más frecuente (53,38 %), seguido del parapremolar (34,59 %) en ambos sexos (p > 0,05). Según la morfología, la presentación cónica se presentó en el 46,62 % de los casos y el estado impactado en el 69,92 %. Hubo diferencias significativas cuando se comparó la distribución de la morfología por arco afectado (p < 0,05). La forma cónica fue más común en el maxilar (53,77 %), mientras que en la mandíbula fue el tipo euromórfico (40,74 %). Se estimó una prevalencia de dientes supernumerarios de 5,32 %. El arco afectado con mayor frecuencia fue el maxilar. Los mesiodens, tipo cónico e impactado fueron los patrones más frecuentes.

ABSTRACT: The supernumerary tooth of nasal location is a pathology of low prevalence in the population with different forms and clinical symptoms. It is important to establish a diagnosis regarding its clinical and radiological characteristics in order to carry out adequate surgical treatment planning, with few or no post-intervention complications. Case presentation: This study reports the case of a 10-year-old boy, with no morbid history, who presented a supernumerary tooth, found radiographically in the midline. CBCT showed a mesiodens in the nasal septum, tilted and inverted palatal, partially erupted covered by nasal mucosa, with its crown facing the nasal cavity in relation to the nostrils. The tooth was extracted under general anesthesia using a transoral approach through a vestibulotomy. The nasal supernumerary tooth is a rare pathology. It is important to know its clinical and radiographic characteristics since they will determine the type of approach to be used. The degree of eruption, the distance to the anterior nasal spine and its associated symptoms are essential to determine whether the surgical approach is intraoral or extraoral.

RESUMEN: El diente supernumerario de ubicación nasal es una patología de baja prevalencia en la población con diferentes formas y sintomatología clínica. Es importante establecer un diagnóstico respecto a sus características clínicas y radiológicas para realizar una planificación de tratamiento quirúrgica adecuada, con nula o escasas complicaciones post intervención. Presentación del caso: En el presente estudio se reporta el caso de un niño de 10 años de edad, sin antecedentes mórbidos, que recurre al servicio por presentar un diente supernumerario en la línea media hallado radiográficamente. El CBCT demuestra un mesiodens en el septum nasal, palatal inclinado e invertido, parcialmente erupcionado cubierto por mucosa nasal, con su corona en sentido a la cavidad nasal en relación a las fosas nasales. El diente fue extraído con anestesia general mediante un abordaje transoral a través de una vestibulotomía. El diente supernumerario nasal es una patología poco prevalente. Es importante conocer sus características clínicas y radiográficas ya que determinarán el tipo de abordaje a realizar. El grado de erupción, la distancia a la espina nasal anterior y su sintomatología asociada son fundamentales para determinar si el abordaje quirúrgico es intraoral o extraoral.

Resumen Objetivo Presentar una serie de casos clínicos de mesiodens en niños con dentición temporal y mixta, su tratamiento y seguimiento. Casos clínicos Se muestra el manejo clínico de tres casos de mesiodens en dentición temporal y un caso en dentición mixta, los cuales fueron diagnosticados en un examen radiográfico de rutina.

Abstract Aim To present a series of clinical cases of mesiodens in children with primary and mixed dentition, their treatment and follow-up Clinical cases This paper describes the clinical management of three cases of mesiodens in primary dentition and one case in mixed dentition which were diagnosed in routine radiographic examinations.

Abstract Objective: To investigate the prevalence and characteristics of supernumerary teeth among patients attending the students' dental clinics at the Faculty of Dentistry of the Arab American University, Jenin, Palestine. Material and Methods: This is a descriptive, cross-sectional, retrospective study of 1970 digital panoramic radiographs of patients, age ranging between 12 and 50 years. The radiographs and dental records were reviewed for supernumerary teeth. For each patient with supernumerary teeth, were recorded the demographic variables, number, location, eruption status, type, and morphology, the developmental stages. Descriptive statistics were performed and results were tabulated. Results: Supernumerary teeth were detected in 17 subjects (0.86%), of which 13 were males and 4 were females with a male to female ratio of 3.25:1. Of the 17 patients, 64.7% had one supernumerary tooth while the others had two. The majority (78.3%) of the supernumeraries were located in the maxilla. Around 56.5% of the supernumeraries found in this study were located in the premaxilla. Half of the supernumeraries (52.2%) were erupted, and 47.8% were impacted. Mesiodens was the most frequently seen supernumerary teeth followed by distomolars and premolars. Most of the supernumeraries were fully developed, while 21.7% displayed only crown formation. Conclusion: The prevalence of supernumerary teeth in the study sample was found to be 0.86% and the most frequent type was mesiodens. Supplemental morphology was found to be the most common form of supernumerary teeth.

Abstract Objective: To determine the frequency and characteristics of mesiodens in Indian school children. Material and Methods: 1232 radiographs of patients attending the Department of Oral Medicine and Radiology of the age group of 4-15 years studied for the present retrospective study. The intraoral periapical radiographs and occlusal radiographs of the premaxilla were examined to determine the presence of mesiodens. The data regarding the presence of mesiodens, number, position, location on the arch, shape and associated complications were recorded. Results: Eleven patients had 14 mesiodens, with a frequency of 0.8%. The ratio of boys to girls was 1.2:1. Maximum mesiodens observed in the age group of 7-9 years. Most of the mesiodens were conical in shape and found on the palatal side. Fifty percent of the mesiodens were unerupted. The majority of patients (57.1%) had vertically positioned mesiodens. Midline diastema was the most common complication due to mesiodens (66.7%). Conclusion: Routine check-up during the primary dentition and mixed dentition stages helps for early detection of mesiodens and thus preventing complications. Early identification is useful for planning comprehensive management, initiating proper consultation and referral for evaluation and treatment.

Resumen 16. Las anomalías dentales pueden producir alteraciones de forma, número, tamaño y estructura dental, afectando la función y la estética. El objetivo del presente estudio es determinar la frecuencia y localización de anomalías dentales de número en niños sanos costarricenses entre los 6 y 12 años. Se realizó un estudio observacional y retrospectivo con 157 radiografías panorámicas de los expedientes de los pacientes de la Clínica de Odontopediatría y Ortodoncia de la Universidad de Costa Rica entre los años 2015-2017; las anomalías que se observaron fueron hiperdoncias e hipodoncias. Los datos fueron analizados utilizando la prueba de Fisher con un nivel de significancia del 5%. Se encontró un 8.3% de anomalías de número, 4.5% fueron hiperdoncias y 3.8% hipodoncias, ambas anomalías se presentaron tanto de forma única como doble o múltiple. No se encontró diferencia estadísticamente significativa según el género. Las hiperdoncias fueron más comunes en maxila y las hipodoncias en mandíbula. Los dientes supernumerarios más frecuentes fueron los mesiodens y las ausencias más recurrentes fueron los segundos premolares inferiores.

Abstract 20. Dental anomalies can produce alterations in dental shape, number, size, and structure, affecting function and aesthetics. The objective of this study is to determine the frequency and location of teeth number anomalies in healthy Costa Rican children between 6 and 12 years old. An observational and retrospective study was carried out with 157 panoramic radiographs of the patients of the pediatric dentistry and orthodontics clinic of the University of Costa Rica between the years 2015-2017. Hyperdontias and hypodontias were the anomalies observed. Data were analyzed using a Fisher exact test with a significance level of 5% . The results showed that the overall frequency of dental anomalies was 8.3%, 4.5% were hyperdontias and 3.8% hypodontias. Double or multiple hyperdontia and hypodontia were also found. The difference between sex was not significant (p= 0.145). Supernumeraries were more frequent in maxilla and hypodontias in mandible. Mesiodens was the most frequently found supernumerary teeth. Mandibular second premolars were the most commonly missing teeth.

RESUMO O presente estudo teve por objetivo discorrer sobre a etiologia, diagnóstico, prevalência e tratamento do mesiodente baseado em evidência científica atual. Ao apresentar dois casos clínicos, de pacientes da Clínica de Odontopediatria da instituiçao de origem, ambos com queixas de insatisfação com o sorriso por apresentarem “dentes estranhos”. Após o diagnóstico clínico, radiográfico e tomográfico foi diagnosticada a presença de dentes supranumerários (mesiodens). O tratamento consistiu na remoção cirúrgica dos dentes e posterior encaminhamento à Ortodontia para atuar de forma a devolver estética e função adequadas. A remoção de mesiodentes em crianças tem por finalidade evitar possíveis distúrbios estéticos e funcionais decorrentes da presença da patologia aliados ao prognóstico favorável em tenra idade.

ABSTRACT The present study aimed to discuss the etiology, diagnosis, prevalence and treatment of mesiodens based on current scientific evidence. Two clinical cases of patients of the pediatric dentistry clinic, both with complaints of dissatisfaction with their smile for showing "strange teeth", were presented. After the clinical, radiographic and tomographic diagnosis, the presence of supernumerary teeth (mesiodens) was diagnosed. The treatment consisted in the surgical removal of the supernumerary teeth and subsequent referral to orthodontics to proceed towards recovering adequate aesthetics and function. The removal of mesiodens in children has the purpose of avoiding possible aesthetic and functional disorders resulting from the presence of the pathology allied to the favorable prognosis in early age.

SUMMARY: Cases in which the normal amount of teeth is exceeded for the primary or permanent dentition formula, are known as supernumerary teeth or hyperdontia. This can occur in single, or multiple form, unilaterally or bilaterally, and affect both maxilla and mandible. It is more prevalent in men, in permanent dentition and in the maxilla; the mesiodens type being the most common supernumerary. Its etiology is still not entirely clear, however, hyperactivity of the dental lamina associated to genetic and environmental factors is the most accepted theory. Supernumerary teeth can be asymptomatic and can only be detected in radiographs. They can also present various clinical manifestations such as dental malposition, delay in dental eruption, root resorption and diastemas. Treatment depends on the type of tooth and its relation with adjacent structures. In the following report we present the case of an asymptomatic, upper and lower partially edentulous 54-year-old male patient, who requested rehabilitation treatment at a private dental clinic in Temuco, Chile. In routine panoramic radiography, two supernumerary teeth were observed, one on each side of the mandible and in the premolar region. Upon reviewing these findings with cone beam computed tomography, it was determined that the supernumerary on the right side corresponded to a supplementary premolar and the supernumerary on the left side corresponded to a supernumerary of molariform morphology. In this case we determined to extract the teeth, due to their location and impact on subsequent rehabilitation treatment.

RESUMEN: Aquellos casos en que se excede la cantidad normal de dientes para la fórmula primaria o definitiva se conocen como dientes supernumerarios o hiperodoncia. Esta puede presentarse de manera aislada o múltiple, unilateral o bilateral y afectar tanto a la maxila como a la mandíbula. Es más prevalente en hombres, en dentición permanente y en el maxilar, siendo el mesiodens el supernumerario encontrado con mayor frecuencia. Su etiología aún no está del todo clara, sin embargo, una hiperactividad de la lámina dental junto a una asociación de factores genéticos y ambientales sería la teoría más aceptada. Pueden ser asintomáticos y detectados solo en radiografías o pueden presentar manifestaciones clínicas como apiñamiento, retardo en la erupción, reabsorción radicular, diastemas entre otros. El tratamiento depende del tipo de diente y de su relación con las estructuras adyacentes. En el siguiente reporte presentamos el caso de un paciente de sexo masculino, de 54 años de edad, no sindrómico, desdentado parcial superior e inferior que acude a una consulta dental privada (Temuco) para solicitar tratamiento rehabilitador. En la radiografía panorámica de rutina se observan dos dientes supernumerarios, uno a cada lado de la mandíbula y en la región premolar. Al examinar este hallazgo con tomografía computarizada cone beam se determina que el supernumerario del lado derecho corresponde a un premolar suplementario y el de la izquierda a un supernumerario de morfología molariforme. En este caso se decide extraer los dientes debido a la localización de estos y a las implicancias con el tratamiento rehabilitador posterior.

Adolescente de 12 anos referenciado à consulta de Estomatologia Pediátrica devido a não erupção do dente incisivo central superior esquerdo. Ao exame objetivo apresentava agenesia de 21, bem como abaulamento da cortical vestibular na região da inclusão. Realizou OPG e TAC maxilar, que evidenciou inclusão do dente 21 com quisto (provavelmente dentígero) envolvendo o mesmo e ainda a presença de um mesiodens incluso. Realizou enucleação da lesão quística, bem como extração do incisivo associado e do mesiodens, tendo-se preenchido a cavidade com substituto de osso e isolado com membrana.

An 12-year-old boy was referred to the Pediatric Stomatology Clinic for absence of eruption of permanent maxillary left incisive tooth. Physical examination revealed bulging of the vestibular cortical bone of the 2nd quadrant, agenesis of the tooth 21. Physical examination: Orthopantomography and CT scan of the upper jaw revealed a large radiolucent image that occupied the maxillary sinus and tooth 2.1 within the cyst and the presence of a mesiodens included. A presumptive diagnosis of an odontogenic dentigerous cyst was made. Treatment procedure comprised cystic enucleation with extraction of 2.1. The bone defect was filled with bone substitute (Geistlich Bio-Oss) and collagen membrane (Geistlich Bio-Gide).

RESUMEN. Un mesiodens es un diente supernumerario que comúnmente se presenta en la línea media maxilar. Dada la frecuencia con la que se presenta, el odontólogo general debe estar bien informado acerca de los signos y síntomas del mesiodens y del tratamiento adecuado. Este artículo relata el caso de una paciente de 8 años de edad, en cuyo examen radiográfico se observa una imagen sugestiva de dos mesiodens no erupcionados entre los incisivos centrales superiores. En la valoración intraoral se encontró una inflamación en la región palatina anterior, sin ninguna alteración en la mucosa. Los dientes supernumerarios se diagnostican mediante radiografía y tomografía computarizada. El objetivo de este trabajo es presentar la importancia clínica observada y la utilización de imágenes auxiliares para el diagnóstico, como la radiografía periapical (técnica de Clark) o la tomografía computarizada.

ABSTRACT Mesiodens are supernumerary teeth, commonly seen in the maxillary midline. Given their high frequency, dentist should be aware of the signs and symptoms of mesiodens and their appropriate treatment. This case report describes an 8-year-old girl with a radiographic image suggesting two unerupted mesiodens between the central incisors on the palate. The intraoral examination showed swelling in the anterior palatal region with no mucosa alteration. The supernumerary teeth were diagnosed by periapical radiograph and computed tomography. The objective of this study is to present the clinical importance and use of diagnostic images, such as periapical radiograph (Clark technique) or tomography.

Purpose: A significant increase has been observed in computed tomography (CT) requests for the pre-operative evaluation of supernumerary teeth (SN) in children. The aim of this work is to describe the SN teeth in a detailed and concise fashion, based on patients diagnosed in our institution. Materials and methods: A retrospective analysis of maxillofacial CT studies was performed during the years 2011 to 2015. Patient data was collected, including gender and age, request data, and CT findings. The SN were classified in accordance with the World Dental Federation (FDI) notation, describing LEOMA variables (location, emplacement, orientation, morphology, and angulation), and the presence of associated disorders (heterotopia, inclusión, ankylosis, or odontoma). Results: The study included 36 patients with a total of 49 SN teeth. The most frequent request was a pre-operative CT evaluation of SN teeth (21 cases). The SN teeth were found in the mesiodens location (30 SN), posterior position in relation to the closest tooth (25 SN), conical rudimentary morphology (26 SN), vertical orientation (19 SN), and anterior-posterior angulation. Conclusion: Providing an adequate description of SN teeth can help the radiologist to write a detailed and concise report and help the maxillofacial surgeon in the pre-operative planning.

Objetivo: En los últimos años, se han incrementado significativamente las peticiones de tomografía computada (TC) para la evaluación preoperatoria de los dientes supernumerarios (SN) en niños. El objetivo de nuestro trabajo es describir de forma detallada y concisa los dientes SN, basándonos en los pacientes diagnosticados en nuestro centro. Materiales y métodos: Se realizó un análisis retrospectivo de los estudios de TC maxilofacial, realizados entre los años 2011 y 2015. Recopilamos datos de los pacientes (género y edad), motivos de solicitud y hallazgos tomográficos. Los dientes SN fueron clasificados según la enumeración dental de la Federación Dental Internacional (FDI), describiendo la variable LEOMA (localización, emplazamiento, orientación, morfología y angulación) y las alteraciones asociadas (heterotopia, inclusión, anquilosis u odontoma). Resultados: Se registraron 36 pacientes con 49 SN en total. La petición más frecuente de TC fue la evaluación preoperatoria de los dientes SN (21 casos). En su mayoría, la localización fue mesiodiente (30 SN), posterior respecto al diente más próximo (25 SN), con orientación vertical (19 SN), con morfología rudimentaria cónica (26 SN) y con angulación anteroposterior. Conclusión: La realización de una adecuada descripción de los dientes SN ayuda al radiólogo a redactar un ordenado informe y al cirujano maxilofacial a realizar la planificación preoperatoria.

RESUMO Mesiodens é o termo utilizado para denominar o dente supranumerário que ocorre na maxila, entre os incisivos centrais, na região de linha média. Esses podem irromper na cavidade oral ou ficarem impactados. A sua presença acarreta higienização inadequada, dificuldade ou impossibilidade de erupção dos dentes regulares e comprometimento da estética. O presente trabalho objetiva mostrar que a identificação precoce de dentes supranumerários, o planejamento e abordagem corretas, permitem a preservação dos dentes e estruturas adjacentes. Este artigo apresenta o caso clínico de criança de 7 anos de idade, gênero masculino, cujos pais procuraram por tratamento com queixa de não esfoliação do dente 51. Foram realizados exames clínicos e radiográficos e estes demonstraram a presença de dente supranumerário invertido. O plano de tratamento teve por objetivo a correta localização, exodontia do mesiodens que não irromperia por ser invertido; e contínuo acompanhamento do caso.

ABSTRACT Mesiodens is the term used for describing the supernumerary tooth that occurs in the maxilla, between the central incisors, in the midline region. These may erupt in the oral cavity or keep themselves impacted. Their presence causes cleaning inadequate, impossibility or difficult of the eruption of the regular teeth and having the aesthetic compromised. This paper aims at showing that early identification of supernumerary teeth, planning and correct approach, allow the preservation of the teeth and adjacent structures. This article presents the clinical case of a seven-year-old child, male, who sought for treatment complaining that teeth 11 didn't appear in the buccal cavity. Clinical and radiographic exams were done and they demonstrated the presence of the supernumerary tooth. The plan of treatment aimed at the correct localization, extraction of this supernumerary tooth and continuous follow up of the case.