Morphologic Changes of Apical Foramen and Microcrack Formation after Foraminal Enlargement: A Scanning Electron Microscopic and Micro-computed Tomographic Analysis.

INTRODUCTION: The aim of the present study was to evaluate the morphologic changes on the apical foramen and the formation of dentinal microcracks after foraminal enlargement in straight and curved root canals using scanning electron microscopic (SEM) and micro-computed tomographic (micro-CT) analyses. METHODS: Sixty teeth were selected and divided into 2 experimental groups: GI (incisors/straight group, n = 30) and GM (molars/curved group, n = 30). Each group was divided into 2 subgroups (n = 15) according to the analysis performed: SEM or micro-CT analysis. The incisors and mesiobuccal canal of molars were instrumented with Reciproc Blue R25 instruments (VDW, Munich, Germany) using standardized shaping procedures in the apical foramen and 1 mm beyond. The occurrence of foraminal deformation was analyzed by scanning electron microscopy. The z test was used for statistical analysis (P < .05). Micro-CT imaging was used to observe the presence of microcracks in the root apical third. Afterward, pre- and postoperative cross-sectional images were screened to identify the presence of dentinal defects. RESULTS: The curvature of the canal did not influence the occurrence of foraminal deformation either for instrumentation in the foramen or for instrumentation beyond the foramen (P > .05). It was also observed that the increase in the working length did not influence the appearance of new deformations in the GI/SEM and GM-SEM groups (P > .05). Qualitative micro-CT analysis showed the presence of dentinal defects in 0.8% (112) and 1.5% (208) of the cross sections of incisors and molars, respectively, from a total of 13,987 slices. All dentinal defects identified in the analysis of any postoperative scans were already present in the corresponding preoperative images. Therefore, no new microcracks were observed after root canal preparation. CONCLUSIONS: The preparation of straight and moderately curved root canals with Reciproc Blue, regardless of the working length, did not influence the occurrence of apical foramen deformations and did not cause the formation of dentinal microcracks.

Vitality Tests for Pulp Diagnosis of Traumatized Teeth: A Systematic Review.

INTRODUCTION: The objective of this systematic review was to evaluate the efficacy of vitality tests (pulse oximetry and flowmetry) in the pulpal diagnosis of traumatized teeth in comparison with sensibility tests. METHODS: This review was registered in the PROSPERO database (CRD42018097361) and was conducted following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement. An electronic systematic search of the literature was performed in the PubMed (Medline), Scopus, Web of Science, Cochrane Library, Lilacs, and Gray Literature databases and the reference lists of articles published until May 2018. The data of the included articles were extracted, and the methodological quality was judged using the QUADAS-2 quality assessment tool following the Cochrane recommendations. RESULTS: The initial search retrieved 173 potential articles. After the duplicates were removed, 77 articles remained; the titles and abstracts of these 77 articles were read, resulting in the selection of 19 articles for reading the full text. Five articles were selected for data extraction and qualitative analysis. The vitality tests evaluated in the studies were pulse oximetry, laser Doppler flowmetry, and ultrasound Doppler flowmetry compared with cold testing, electrical testing, or both. In all articles, the results were favorable for vitality tests; however, a high risk of bias was found in at least 1 item of the quality evaluation of the included studies. CONCLUSIONS: Because of the high risk of bias and deficiency in the research design, there is still a need for further studies in relation to pulse oximetry, laser Doppler flowmetry, and ultrasound Doppler flowmetry, which consistently prove the diagnostic accuracy and superiority when compared with sensibility tests on traumatized teeth.

Influence of chlorhexidine and zinc oxide in calcium hydroxide pastes on pH changes in external root surface.

The objective of this study was to assess the influence of chlorhexidine (liquid and gel) and zinc oxide in calcium hydroxide (CH) pastes on root pH in simulated external resorption. One hundred human anterior teeth with a single root canal were selected. After decoronation and root canal instrumentation, the specimens were divided into 4 experimental groups and 1 control group (without intracanal paste): CH + saline (CH+S), CH + 2% chlorhexidine liquid (CH+ CHX), CH + 2% chlorhexidine gel (CH+ CHXg), and CH + 2% chlorhexidine gel + zinc oxide (CH+ CHXg+ZnO). pH was measured using a microelectrode at 3 and 24 h, and 1, 2, 3, and 4 weeks after inserting intracanal pastes. Data were analyzed statistically using an ANOVA and Tukey's test (p < 0.05). The CH+CHXg+ZnO group had the highest pH values throughout (p<0.05). The CH+S and CH+ CHX groups had the highest pH values after 1 week and the CH+ CHXg group after 2 weeks. CH+ CHXg maintained the highest pH until the fourth week compared with CH+ CHX (p < 0.05). The control group remained at a neutral pH at all evaluated times. It can be concluded that chlorhexidine solution or gel maintained the alkaline pH of CH, and chlorhexidine gel allowed a slower decrease in pH over time. CH+ CHXg+ZnO showed the highest pH values and was an effective intracanal medication for maintaining alkaline root pH in the area of resorption.

Influence of chlorhexidine and zinc oxide in calcium hydroxide pastes on pH changes in external root surface

Abstract The objective of this study was to assess the influence of chlorhexidine (liquid and gel) and zinc oxide in calcium hydroxide (CH) pastes on root pH in simulated external resorption. One hundred human anterior teeth with a single root canal were selected. After decoronation and root canal instrumentation, the specimens were divided into 4 experimental groups and 1 control group (without intracanal paste): CH + saline (CH+S), CH + 2% chlorhexidine liquid (CH+ CHX), CH + 2% chlorhexidine gel (CH+ CHXg), and CH + 2% chlorhexidine gel + zinc oxide (CH+ CHXg+ZnO). pH was measured using a microelectrode at 3 and 24 h, and 1, 2, 3, and 4 weeks after inserting intracanal pastes. Data were analyzed statistically using an ANOVA and Tukey's test (p < 0.05). The CH+CHXg+ZnO group had the highest pH values throughout (p<0.05). The CH+S and CH+ CHX groups had the highest pH values after 1 week and the CH+ CHXg group after 2 weeks. CH+ CHXg maintained the highest pH until the fourth week compared with CH+ CHX (p < 0.05). The control group remained at a neutral pH at all evaluated times. It can be concluded that chlorhexidine solution or gel maintained the alkaline pH of CH, and chlorhexidine gel allowed a slower decrease in pH over time. CH+ CHXg+ZnO showed the highest pH values and was an effective intracanal medication for maintaining alkaline root pH in the area of resorption.

Relationship between Initial Attendance after Dental Trauma and Development of External Inflammatory Root Resorption.

This clinical study aimed to evaluate the relationship of the delay between dental trauma and the initial attendance to the development of external inflammatory root resorption in permanent teeth affected by severe luxation. Sixty-seven patients, aged between 11 and 56 years, presenting 133 injured teeth with closed apex (56 extrusive luxation, 69 lateral luxation and 8 intrusive luxation) were followed up for a minimum of 24 months. The time elapsed between dental trauma and the initial attendance was recorded. The presence of necrotic pulp and external inflammatory resorption for each type of trauma was verified. Fisher's exact test was used to verify the influence of the initial attendance date at the Dental Trauma Center and the development of inflammatory resorption (p<0.05). The odds ratio was used to check the risk of developing external inflammatory resorption due to delay in seeking treatment. Pulp necrosis was observed in 105 teeth (78.9%) and external inflammatory resorption was detected in 17.8% cases of extrusive luxation (10 teeth), 15.9% of lateral luxation (11 teeth) and 25% of intrusive luxation (2 teeth). For lateral luxation, extended delay between the date of injury and initial attendance influenced the occurrence of external inflammatory resorption (p=0.0174). Patients who began treatment 45 days after the injury were 3.4 times more likely to develop external inflammatory resorption than patients who sought treatment after the trauma. Treatment late after the occurrence of dental trauma can impair the prognosis and result in the development of external inflammatory resorption in luxated teeth.

Multidisciplinary approach for replacement root resorption following severe intrusive luxation: A case report of decoronation.

Intrusive luxation is a severe trauma-related event with a high frequency of pulp necrosis and root resorption. A common complication following intrusion is tooth ankylosis, which can extend to progressive replacement root resorption. An increasing infraposition in growing individuals can also occur. Decoronation is a new conservative treatment for cases of tooth ankylosis in young patients who have not finished growing. In this surgical technique, the tooth crown is removed and the root with replacement resorption process remains inside the alveolus. This treatment allows the alveolar bone to continue to develop, thus preserving bone dimensions. The purpose of this article is to report a multidisciplinary case of a young patient with anterior open bite, dental ankylosis, and tooth infraposition affected by intrusive luxation. Decoronation was the treatment of choice for this patient. The patient was then referred to orthodontic treatment to maintain the space of the maxillary right central incisor and open bite correction. After 5 years of follow-up, good clinical and radiologic results were obtained.

Relationship between Initial Attendance after Dental Trauma and Development of External Inflammatory Root Resorption

Abstract This clinical study aimed to evaluate the relationship of the delay between dental trauma and the initial attendance to the development of external inflammatory root resorption in permanent teeth affected by severe luxation. Sixty-seven patients, aged between 11 and 56 years, presenting 133 injured teeth with closed apex (56 extrusive luxation, 69 lateral luxation and 8 intrusive luxation) were followed up for a minimum of 24 months. The time elapsed between dental trauma and the initial attendance was recorded. The presence of necrotic pulp and external inflammatory resorption for each type of trauma was verified. Fisher’s exact test was used to verify the influence of the initial attendance date at the Dental Trauma Center and the development of inflammatory resorption (p<0.05). The odds ratio was used to check the risk of developing external inflammatory resorption due to delay in seeking treatment. Pulp necrosis was observed in 105 teeth (78.9%) and external inflammatory resorption was detected in 17.8% cases of extrusive luxation (10 teeth), 15.9% of lateral luxation (11 teeth) and 25% of intrusive luxation (2 teeth). For lateral luxation, extended delay between the date of injury and initial attendance influenced the occurrence of external inflammatory resorption (p=0.0174). Patients who began treatment 45 days after the injury were 3.4 times more likely to develop external inflammatory resorption than patients who sought treatment after the trauma. Treatment late after the occurrence of dental trauma can impair the prognosis and result in the development of external inflammatory resorption in luxated teeth.

Resumo O objetivo deste estudo clínico foi avaliar a relação entre a demora na procura por tratamento e o desenvolvimento de reabsorções inflamatórias externas em dentes luxados com ápice fechado. A amostra desta pesquisa foi constituída por 67 pacientes que apresentaram 133 dentes traumatizados, dos quais 56 foram acometidos por luxação extrusiva, 69 por luxação lateral e 8 por luxação intrusiva, proservados por no mínimo 24 meses. Foi registrado o tempo decorrido entre a data do trauma e o primeiro atendimento. Verificou-se a ocorrência de necrose pulpar e reabsorções inflamatórias externas em cada tipo de traumatismo. O Teste Exato de Fisher foi aplicado para verificar a influência da data do atendimento inicial e o desenvolvimento de reabsorções inflamatórias externas em cada tipo de luxação e o teste de Odds Ratio foi aplicado para verificar o risco do desenvolvimento de reabsorções inflamatórias externas em função da demora na procura por tratamento. Os resultados revelaram que a necrose pulpar foi verificada em 105 dentes luxados (78,9%) e a reabsorção inflamatória externa foi verificada em 17.8% das luxações extrusivas (10), sendo 15,9% das luxações laterais (11) e 25% das luxações intrusivas (2). A demora na procura por tratamento influenciou o desenvolvimento de reabsorções infamatórias externas nas luxações laterais (p=0,0174). Os pacientes que procuraram tratamento após 45 dias da data do trauma apresentaram 3,4 vezes mais chance de desenvolver reabsorção inflamatória externa do que os pacientes que procuraram tratamento logo após o traumatismo. Conclui-se que o tratamento tardio após a ocorrência do traumatismo pode prejudicar o prognóstico e favorecer o desenvolvimento de reabsorções inflamatórias externas em dentes luxados com ápice fechado.

Atendimentos realizados no Serviço de Traumatismos Dentários da FOP-Unicamp durante o período de dois anos

Objetivo: verificar a frequência dos atendimentos realizados no Serviço de Traumatismos Dentários da FOP- -Unicamp, durante o período de fevereiro de 2013 a fevereiro de 2015. Sujeitos e método: os dados foram coletados na ficha clínica utilizada no serviço e foram avaliados os seguintes aspectos: gênero, faixa etária, classificação do dente, período entre o trauma e o primeiro atendimento no serviço, etiologia, classificação da injúria traumática e procedimento efetuado. Os dados foram analisados com auxílio do software SAS e do teste Qui-Quadrado, que foi utilizado para verificar a presença ou a ausência de significância com nível de 5%. Resultados: foram analisadas as fichas clínicas de 57 pacientes com 161 dentes traumatizados, com maior prevalência do gênero masculino e da faixa etária abaixo dos 14 anos. Os incisivos centrais (60,9%) foram os dentes mais afetados. A maioria dos pacientes (56,1%) procurou atendimento entre 0 e 30 dias após o trauma. As quedas (33,3%) foram a etiologia mais comum. As injúrias dentárias traumáticas mais encontradas foram as fraturas coronárias de esmalte e dentina (19,9%) e a subluxação (19,3%). O procedimento mais efetuado foi a realização dos exames clínico e radiográfico (46,6%). Conclusão: os achados mais prevalentes dos atendimentos foram: o gênero masculino; a maior frequência de injúrias na faixa etária abaixo dos 14 anos de idade; os incisivos centrais como os dentes mais acometidos; o período entre 0 e 30 dias para procurar atendimento; as quedas, a etiologia mais comum; os exames clínico e radiográfico, o procedimento mais efetuado; as fraturas coronárias de esmalte e dentina e a subluxação, as injúrias mais observadas.

Tomografia computadorizada de feixe cônico como método de diagnóstico auxiliar na localização de canais calcificados / Cone beam computed tomography as a diagnostic method assist in locating calcified canals

Introdução: novos instrumentos e meios de diagnóstico estão surgindo com o objetivo de facilitar e otimizar o tratamento endodôntico. A tomografia computadorizada de feixe cônico apresenta-se como uma nova ferramenta para o endodontista diagnosticar reabsorções e fraturas radiculares, e localizar canais não visualizados na radiografia convencional. Aliada a essa nova tecnologia, limas rotatórias de uso único, utilizadas no movimento reciprocante, estão sendo cada vez mais difundidas na Endodontia. Objetivo: descrever um caso clínico, realizado por meio do uso de lima única (RECIPROC), onde a tomografia computadorizada de feixe cônico foi solicitada para localização de canais calcificados

Intracanal dressing paste composed by calcium hydroxide, chlorhexidine and zinc oxide for the treatment of immature and mature traumatized teeth

AIM : To evaluate clinical and radiographic aspects before and after endodontic treatment with an intracanal dressing paste composed of calcium hydroxide, chlorhexidine and zinc oxide in traumatized teeth followed-up for 1 year. METHODS : Patients (n=105) treated at the Dental Trauma Service of Piracicaba School of Dentistry, Brazil were enrolled in the study. Two groups of teeth were formed: immature (G1) (n=28) and completely developed teeth (G2) (n=174). All teeth were endodontically treated and received an intracanal dressing with a paste composed by calcium hydroxide, 2% chlorhexidine gel and zinc oxide at a 2:1:2 rate. Clinical and radiographic aspects were evaluated initially, monthly and after 1-year. RESULTS : Most of the immature teeth suffered extrusive luxation (39.3%), whereas intrusive luxation (40.8%) was more common in completely developed teeth. There was a significant reduction in pain on percussion and mobility (p=0.0001) for immature teeth. Mature teeth showed reduction of spontaneous pain, fistula, mobility and pain on percussion (p<0.0001). Radiographic examination showed decrease in all evaluated parameters for both groups, in addition to stabilization of root resorption. CONCLUSIONS : This new intracanal dressing paste for traumatized teeth showed promising results in both immature and completely developed teeth, and may prevent post-traumatic complications.

Apicificação sem trocas periódicas de medicação intracanal e com plug apical de MTA: caso de cinco anos de acompanhamento / Apexification without periodic changes of intracanal medicament and MTA apical plug: five years follow-up of a case

Objetivo: apresentar um caso clínico de apicificação de dentes traumatizados por meio de dois diferentes protocolos de tratamento. Métodos: paciente do sexo masculino, 11 anos de idade, compareceu ao Serviço de Trauma Dental da FOP-UNICAMP, tendo sofrido fratura de esmalte e dentina, e subluxação nos dentes 11 e 21 há três anos, após sofrer um acidente ciclístico. Radiograficamente, verificou-se que os dentes apresentavam rizogênese incompleta. Após o diagnóstico de necrose pulpar, o plano de tratamento consistiu na utilização de uma pasta que associa hidróxido de cálcio, clorexidina gel a 2% e óxido de zinco, sem trocas periódicas, no dente 11, e na confecção de um plug apical de MTA no dente 21. Resultados: após o período de acompanhamento de oito meses, o fechamento apical de ambos os dentes foi observado. Após cinco anos de acompanhamento clínico e radiográfico, verificou-se que os dentes não apresentavam sintomatologia e que as lesões periapicais foram reparadas. Conclusão: concluiu-se que os dois protocolos utilizados diminuem o número de sessões e podem fornecer sucesso clínico e conforto ao paciente

Avaliação morfológica do forame apical após o preparo endodôntico com dois sistemas rotatórios / Morphological evaluation of the apical foramen after shaping root canais with two rotatory systems

O objetivo deste estudo foi avaliar as alterações morfológicas do forame apical após o preparo endodôntico de canais curvos com diferentes sistemas rotatórios, empregando-se a patência e a ampliação foraminal. Foram selecionadas 20 raizes (mesiais e distais), de molares superiores humanos, que apresentavam o mesmo comprimento e grau de curvatura. Os espécimes foram divididos em dois grupos: no grupo 1 (G 1), os canais foram preparados empregando-se a sequência de limas Pro design® acopladas ao Sistema Easy Endo Slim®; no grupo 2 (G2) os canais foram instrumentados através da sequência de limas Mtwo® no Sistema Mtwo@ O comprimento de trabalho foi estabelecido em 1 mm além do forame apical. As imagens, antes e após o preparo, foram obtidas em MEVe analisadas por meio do programa Image Manager (Leica IM50). Os resultados mostraram que no Gl, a média das áreas foi de 0,007 mm2 e 0,115 mm2, antes e após. No G2, observou-se que esses valores eram de 0,093 mm2 e 0,183 mm2, respectivamente. Em ambos os grupos houve diferença estatística antes e após o preparo do forame pelo teste de T-student pareado (p<0,005). Ao se aplicar o teste T-student independente (p=O,011) verificou-se que a ampliação foraminal no G2 foi estatisticamente maior que no Gl. Em apenas 20% dos casos foram observados formas irregulares de forames após a instrumentação. Concluiu-se que a ampliação foraminal empregada no preparo endodôntico de canais curvos permitiu um alargamento apical de forma regular, independentemente da sequência de limas rotatórias utilizadas neste estudo

The objective of this study was to evaluate the morphological changes of the apical foramen after endodontic treatment of curved canais with different rotary systems employing the foraminal patency and expansion. Twenty mesial and distal human maxillary molars roots of 12mm length and about 5 degrees of curvature according to Schneider's method were selected. The specimens were divided into two groups: group 1, root canais prepared by the Pro design® files sequence attached to the Easy Endo Slim ® System; group 2, root canais instrumented by Mtwo ® files sequence with the Mtwo® System. The working length at both groups was set at 1 mm beyond the apical foramen. Images before and after preparation were obtained by SEM and analyzed by the Image Manager (Leica IM50). The mean area at Gl was 0.007 mm2 before and 0.115 mm2 after instrumentation. At G2, these mean values were 0.093 mm2 and 0.183 mm2, respectively.ln both groups, the t-student test showed statistical difference at foramen size before and after preparation (p <0.005). At independent t -student test (p = 0.011) the increase of the foramen size was statistica Ily higher in G2 tha n G 1. Only 20% of cases showed irregular foramen shapes after instrumentation. Independently ofthe rotatory files sequence used in this study the foraminal enlargement in endodontic preparation of smoothly curved canais allowed an apical regular shape in mostly of cases

Proposta terapêutica para dentes avulsionados utilizando hidróxido de cálcio associado a clorexidina gel 2% e óxido de zinco

Introdução: na Odontologia, um dente avulsionado requer muita atenção devido suas implicações estéticas e funcionais. O prognóstico de um dente reimplantado está diretamente relacionado à necessidade de tratamento endodôntico, e várias substâncias têm sido empregadas como medicação intracanal. Objetivo: o objetivo desse estudo foi relatar um caso de reimplante dentário que foi tratado endodonticamente por meio uma nova proposta terapêutica para dentes permanentes avulsionados, a qual associa hidróxido de cálcio P.A., clorexidina gel 2% e óxido de zinco. Métodos: um paciente de 10 anos sofreu avulsão dentária dos incisivos centrais superiores direito e esquerdo devido a um acidente de bicicleta. Esses dentes foram reimplantados e tratados endodonticamente,com protocolos diferentes. O incisivo direito foi tratado tradicionalmente com trocas periódicas de medicação intracanal composta por hidróxido de cálcio e o incisivo esquerdo foi mantido com uma pasta obturadora composta por hidróxido de cálcio, clorexidina gel 2% e óxido dezinco durante todo o período de apicificação, sem trocas.Conclusão: durante os três anos de controle, ambos os dentes mostraram ausência de sintomatologia periapical e reparo apical. Essa medicação intracanal desempenha importante papel como pasta obturadora, com eliminação efetiva de microrganismos presentes no sistema decanais radiculares, estímulo ao desenvolvimento de uma barreira mineralizada apical e estabilização da reabsorção radicular inflamatória

Un nuevo protocolo de medicación intraconducto para dientes con necrosis pulpar y rizogénesis incompleta / A new intracanal medication protocol for treatment of immature teeth with a nonvital pulp

El trauma tiene un serio impacto en el desarrollo de la dentición de niños y jóvenes, pudiendo resultar en necrosis del diente permanente joven. El tratamiento más común para los casos de necrosis pulpar en dientes con rizogénesis incompleta es promover la apexificación. Este artículo presenta el reporte de un caso clínico donde fue utilizada una medicación intraconducto(MIC) compuesta por la asociación de hidróxido de calcio, clorhexidina gel al 2% y óxido de zinc (2:1:2) para promover la formación de tejido calcificado en el ápice de dos dientes acometidos de trauma dental. Al cabo de 9 meses, sin necesidad de cambios en la MIC, fue observada la formación de una barrera apical que permitió la obturación endodóntica definitiva. Este nuevo protocolo de MIC para dientes con rizogénesis incompleta y necrosis pulpar se justifica en la revisión de literatura presentada, la misma que destaca sus beneficios.

Dental trauma has a serious impact on the developing dentition of children and young people; it could result in pulp necrosis of young permanent tooth. The most common treatment for cases of pulp necrosis in teeth with incomplete apexogenesis is to promote apexification. This paper presents a case report where it was used an intracanal medication (ICM) combining calcium hydroxide, 2% chlorhexidine gel and zinc oxide (2:1:2) to promote the apical barrier formation in two teeth of a patient who attended the Dental Trauma Care Service. After 9 months, with no periodical replacements of the ICM, it was observed the formation of an apical barrier that allowed the final endodontic obturation. This new ICM protocol for teeth with pulp necrosis and incomplete apexogenesis is justified in the literature review presented that highlights the benefits of its use.

Prevalência das fraturas radiculares e corono-radiculares no serviço de traumatismo dentário da FOP-Unicamp: estudo retrospectivo / Radicular and coronal-radicular fractutes’ prevalence in FOP-Unicamp dental trauma service: retrospective study

O objetivo deste trabalho foi realizar um estudo retrospectivo sobre a prevalência e a etiologia das fraturas radiculares e corono-radiculares em 366 pacientes atendidos no Centro de Traumatismo Dentário da Faculdade de Odontologia de Piracicaba no período de 2002-2009. Os resultados mostraram que as fraturas radiculares ocorreram em 43 dentes e as fraturas corono-radiculares em 23 dentes, totalizando 53 pacientes. A maior prevalência destes traumas ocorreu em pacientes do gênero masculino com idade acima de 26 anos e as principais causas foram as quedas e os acidentes de trabalho. Este estudo destaca a importância de um correto tratamento emergencial em casos de fraturas radiculares, conseguindo-se desta forma um prognóstico favorável e a redução de complicações desses tipos de injúrias.

The aim of this work was to achieve a retrospective study concerning the prevalence and etiology of the root fractures and coronal-root fractures in 366 pacients treated at the Traumatic Dental Center of the Dental School of Piracicaba in the 2002-2009 period. The results showed that root fractures occured in 43 teeth and coronal-root fractures in 23 teeth totaling 53pacients. The high rate of these traumas was in male pacients over age 26 years old and the main causes were fall and work accidents. This study highlightedthe importance of a correct emergencial care in cases of root fractures, thereby it is possible to achieve a favorable prognosis and a reduction of complications in this type of injuries.