Management of transverse root fractures in dental trauma.

The management of complex dental trauma can be modulated according to the emergencies that may arise over time. Clinical management of transverse root fractures may require different therapies based on situations, such as delay and error in the treatment of an avulsion trauma associated with apical third root fracture, patient's poor compliance, or external and internal root resorption. The primary aim of this article was to review studies regarding root fractures in the permanent dentition and root fracture management. The secondary aim was to present the inflammatory reaction and the complications (i.e., infections) that may occur if the International Association for Dental Traumatology (IADT) guidelines are not followed. In addition, a scenario is devised in which endodontic surgery, despite the baseline patient's conditions and negative prognosis, can help to inhibit the inflammatory root resorption and allow the preservation of soft and hard tissues within a long follow-up from the injury, for the purpose of demonstrating the next possible implant-prosthetic rehabilitation.

Odontoma malformation and disturbances of eruption subsequent to traumatic dental injuries: A literature review and a case report.

Due to the close proximity of the primary teeth with the developing permanent successors, several developmental alterations in the permanent successors have been reported as consequences of traumatic dental injuries to the primary dentition. When they occur at a very young age such trauma could disturb normal tooth development and cause rare anomalies, including sequestration of the permanent tooth germ and odontoma-like malformations. A literature review of case reports with a history of trauma and odontoma formation is discussed in this paper. This paper also includes a case report of a patient, who was 3-years and 5-months old, when she was seen at the University of California, Los Angeles Children's Dental Center for the first time. The grandmother reported that the child was dropped from the father's lap when she was 2 weeks old and suffered head trauma and multiple skull fractures.

Intrusive luxation of permanent upper central incisor into the nasal cavity: A case report.

This case report outlines a rare complete intrusion of a permanent, maxillary central incisor (tooth 11) into the nasal cavity, with a late diagnosis and treatment. An eight-year-old boy was referred to an oral and maxillofacial surgery service with absence of tooth 11 after an episode of a fall from his own height. Approximately 50 days after the trauma, the patient presented with a complaint of obstruction of the right nostril. The clinical examination and tomographic evaluation showed that the tooth had been intruded into the nasal cavity on the right side. The tooth in question was removed under general anesthesia by direct approach through the right nostril. The patient was followed up for approximately one year without complications. This case demonstrates the importance of a detailed evaluation during the first examination after intrusive luxation, so the correct diagnosis is made and the correct treatment is performed to avoid greater morbidity and complications for the patient.

Avulsión dental y mantenedor de espacio estético-funcional y correctivo en Odontopediatría / Dental avulsion and esthetic-functional and corrective retainers use in Pediatric Dentistry / Avulsão dentária e mantenedor do espaço estético-funcional e corretivo em Odontopediatria

RESUMEN Se presentó el caso de un niño de 8 años que acudió al Servicio de Estomatología del Policlínico Universitario "Chiqui Gómez Lubián", de Santa Clara, provincia Villa Clara. En el mismo se observó avulsión del incisivo central superior derecho, fractura no complicada de la corona en incisivo central superior izquierdo y una marcada vestibuloversión. Se confeccionó un aparato placa Hawley de acuerdo a las características y necesidades del paciente, con el fin de lograr la recuperación estética, mantener la longitud del arco y corregir la vestibuloversión en el mismo. El aparato permitió obtener un resultado satisfactorio, que ha influido psicológicamente en el paciente al elevar su autoestima y salud bucal.

ABSTRACT A boy of 8 years old was seen in the dental service at the Policlínico Universitario "Chiqui Gómez Lubián", in Santa Clara, Villa Clara. Examination revealed avulsion in the right upper central incisor, uncomplicated crown fracture in left upper central incisor and an improper alignment of the teeth. Taking into account patients´ characteristics and requirements, it was fabricated a Hawley´s retainer in order to achieve a better aesthetic outcome, maintain the length of the dental arch and correct the improper alignment of the teeth. The appliance has achieved a satisfactory outcome, which has had a psychological influence on the patient by improving his self-esteem and oral health.

RESUMO Foi apresentado o caso de um menino de 8 anos que veio ao Serviço de Estomatologia do Policlínico Universitario "Chiqui Gómez Lubián", em Santa Clara, província de Villa Clara. Neste, observou-se avulsão do incisivo central superior direito, fratura não complicada da coroa em incisivo central superior esquerdo e vestibuloversão acentuada. Um dispositivo de placa de Hawley foi confeccionado de acordo com as características e necessidades do paciente, a fim de se obter recuperação estética, manter o comprimento do arco e corrigir a vestibuloversão nele. O dispositivo permitiu obter um resultado satisfatório, o que influenciou psicologicamente o paciente, elevando sua autoestima e saúde bucal.

Conservative treatment in adult patient with reimplanted anterior teeth after traumatic avulsion with extensive bone loss: an 8-year follow-up

ABSTRACT Introduction: Orthodontic treatment in patients with traumatized teeth is a condition that needs good planning in order to achieve satisfactory results. Objective: To discuss approaches to orthodontic treatment of malocclusions associated with trauma followed by avulsion of anterior teeth, reimplanted after a short period of time. Case report: The treatment started with the distalization of upper posterior teeth, with the aid of mini-implants and sliding jigs, followed by the inclusion of anterior teeth in the arch, followed by intrusion of these teeth. Results: With the treatment, improved mobility of the anterior teeth was achieved, with better insertion into bone tissue. The most important factor for satisfactory treatment and a good prognosis for avulsion is the time the tooth remains outside the socket. Orthodontic treatment in patients with traumatized teeth is not contraindicated; however, clinical and radiographic aspects must be considered. Conclusion: Among the feasible orthodontic treatment options, the conservative approach can be a very favorable treatment alternative.

RESUMO Introdução: O tratamento ortodôntico em pacientes com dentes traumatizados é uma condição que necessita de um bom planejamento, a fim de se conseguir resultados satisfatórios. Objetivo: Discutir as abordagens de tratamento ortodôntico de más oclusões associadas ao trauma seguido de avulsão de dentes anteriores, reimplantados após curto espaço de tempo. Relato do Caso: O tratamento realizado iniciou-se com a distalização dos dentes posteriores superiores, com auxílio de mini-implantes e sliding jigs, seguida da inclusão dos dentes anteriores na arcada e intrusão desses dentes. Resultados: Com a realização do tratamento, conseguiu-se melhoria na mobilidade dos dentes anteriores, com inserção mais favorável no tecido ósseo. O fator mais importante para o tratamento satisfatório e um bom prognóstico da avulsão é o tempo em que o dente permanece fora do alvéolo. O tratamento ortodôntico em pacientes com dentes traumatizados não é contraindicado; porém, aspectos clínicos e radiográficos devem ser considerados. Conclusão: Entre as opções de tratamento ortodôntico factíveis, a abordagem conservadora pode ser uma opção de tratamento bastante favorável.

Dental injuries in patients associated with fracture of facial bones.

PURPOSE: To assess different types of dental injuries associated with facial bone fractures. METHOD: One hundred dentate patients were selected randomly of all age and gender who had maxillofacial trauma only and having dental injury in association with facial bones fractures were included. They were thoroughly examined for injury/fracture to facial region as well as for dental injuries (teeth). Tooth injuries were noted according to Ellis classification. The data was collected, compiled, and put to statistical analysis. RESULTS: Dental injuries were more in females than males found to be statistically significant with (p < 0.05).Crown fracture of maxillary teeth was more as compared to mandibular except molars found to be statistically significant (p < 0.05). Root fracture was more in maxillary incisors followed by canine as compared to mandibular incisors and canines found to be insignificant. Avulsion, extrusion and luxation were more in maxilla as compared to mandible found to be significant. CONCLUSION: Different types of tooth injuries associated with facial bone fracture found more in females and maxillary teeth.

Abordagem quanto ao diagnóstico e ao tratamento da avulsão dentária: uma revisão de literatura / Approach to diagnosis and treatment of dental avulsion: a literature review

Objetivo: descrever uma revisão da literatura que apresente as principais consequências que podem ocorrer quando o dente avulsionado é reimplantado de forma tardia, proporcionando um prognóstico desfavorável. Revisão de literatura: a avulsão dental é uma lesão traumática que se caracteriza pelo completo deslocamento do dente de seu alvéolo, acarretando danos tanto às estruturas de suporte do elemento dental quanto às estruturas pulpares. A permanência extraoral do elemento dental avulsionado por períodos longos ou em meios de armazenamento inadequados pode provocar danos adicionais. Considerações finais: as lesões de inserções são as principais consequências da pós-avulsão dentária, isso devido a uma ruptura do ligamento periodontal, com uma secagem excessiva antes do reimplante, danificando as células do ligamento periodontal, o que, por sua vez, provoca uma resposta inflamatória exacerbada em uma ampla área da superfície radicular. (AU)

Objective: to describe a literature review, which presents the main consequences of late reimplantation of the avulsed tooth, providing an unfavorable prognosis. Literature review: tooth avulsion is a traumatic lesion characterized by the complete displacement of the tooth from the socket, causing damage to the support structures of the dental element as well as to pulp structures. The long extraoral time of the avulsed tooth or the time in inadequate storage may cause additional trauma. Final considerations: insertion lesions are the main consequences of tooth post-avulsion due to a rupture in the periodontal ligament, with an excessive drying prior to reimplantation, which damages the periodontal ligament cells and causes an exacerbated inflammatory response in a large root surface area. (AU)

Frequency of crown and root dilaceration of permanent incisors after dental trauma to their predecessor teeth.

BACKGROUND/AIMS: Dental trauma to the predecessor teeth can cause crown and root dilacerations to the successor teeth, which can interfere with the normal development of permanent teeth. The aims of this study were to verify the types of trauma more frequent to the predecessor teeth that cause dilaceration to their successor teeth, to determine the frequency of crown and root dilacerations in permanent incisors, taking into account the child's age at the time of trauma, and to describe the types of treatment performed. MATERIALS AND METHODS: Details of 815 anterior primary teeth with dental injury were obtained from 483 dental records of children aged 0-9 years at the time of trauma. RESULTS: Of 815 traumatized primary teeth, 161 successor teeth were clinically and radiographically reviewed until complete eruption and had some type of sequel. Avulsion and intrusive luxation were the most frequent types of trauma to the predecessor teeth that caused dilaceration to their successor teeth. Enamel discoloration (30.4%), hypoplasia (23.6%), root (14.3%) and crown (9.9%) dilacerations were the most common sequelae observed in the successor teeth. Root and crown dilacerations were more frequent in children aged more than and up to 3 years, respectively. Tooth extraction and orthodontic treatment were the most common treatments. CONCLUSIONS: Dentists must be aware of the relationship between the child's age at the time of trauma to the predecessor tooth and the type of sequel to the successor tooth in order to diagnose, monitor, and treat the sequel properly.

Pulp canal obliteration after traumatic injuries in permanent teeth - scientific fact or fiction?

Abstract: Pulp canal obliteration (PCO) is a frequent finding associated with pulpal revascularization after luxation injuries of young permanent teeth. The underlying mechanisms of PCO are still unclear, and no experimental scientific evidence is available, except the results of a single histopathological study. The lack of sound knowledge concerning this process gives rise to controversies, including the most suitable denomination. More than a mere semantic question, the denomination is an important issue, because it reflects the nature of this process, and directly impacts the treatment plan decision. The hypothesis that accelerated dentin deposition is related to the loss of neural control over odontoblastic secretory activity is well accepted, but demands further supportive studies. PCO is seen radiographically as a rapid narrowing of pulp canal space, whereas common clinical features are yellow crown discoloration and a lower or non-response to sensibility tests. Late development of pulp necrosis and periapical disease are rare complications after PCO, rendering prophylactic endodontic intervention useless. Indeed, yellowish or gray crown discoloration may pose a challenge to clinicians, and may demand endodontic intervention to help restore aesthetics. This literature review was conducted to discuss currently available information concerning PCO after traumatic dental injuries (TDI), and was gathered according to three topics: I) physiopathology of PCO after TDI; II) frequency and predictors of pulpal healing induced by PCO; and III) clinical findings related to PCO. Review articles, original studies and case reports were included aiming to support clinical decisions during the follow-up of teeth with PCO, and highlight future research strategies.

Use of bioactive materials and limited FOV CBCT in the treatment of a replanted permanent tooth affected by inflammatory external root resorption: a case report.

BACKGROUND: Inflammatory external root resorption is one of the possible complications of replantation of an avulsed tooth. Several studies have shown that limited FOV CBCT is an efficient diagnostic support and in treatment planning of these cases in paediatric patients because of its high resolution combined with low radiation doses. The recent literature has suggested that Biodentine is an effective material for resolution of inflammatory root resorption. CASE REPORT: This article describes the successful therapy of a replanted tooth affected by inflammatory root resorption. In the present case, a CBCT exam was performed to detect the extent of the damage, and the canal was filled with Biodentine in the apical third. At present, the threated tooth is asymptomatic, and the twelve months follow-up examination showed healing of periradicular hard tissues.

Rare sequelae in the permanent successor due to trauma in the primary incisor: a case report.

Severe dental trauma-such as intrusion or avulsion-to the primary dentition in infants and toddlers may cause developmental disturbances in the permanent successor. In this case, a 9-year-old boy was referred for treatment due to the absence of his permanent maxillary right central incisor. The mother reported avulsion of the corresponding primary tooth when the patient was 2 years old. The radiographic examination revealed impaction and root dilaceration of the permanent tooth; therefore, the treatment plan was tooth extraction. The extracted tooth presented multiple abnormalities, including enamel discoloration, enamel hypoplasia, root dilaceration, and root duplication. Several factors need to be considered when treatment of traumatic sequelae to a permanent successor is planned, including the age of the patient, the developmental stage of the permanent successor at the time of trauma, and the type of trauma to the primary tooth.

Life cycles of traumatized teeth: long-term observations from a cohort of dental trauma victims.

Life cycles of dental trauma victims can provide important clinical information, especially when viewed over many years. In this first series of life cycles, the pulp and periodontal responses to traumatic injuries of four patients are documented over periods varying from 26 to 51 years. The dynamics of pulp survival following an intrusive luxation and two avulsions are followed, with particular reference to pulp canal calcification to which a new term, root canal stenosis, has been proposed. The life cycles include the successful management of inflammatory root resorption in a replanted tooth with an open apex contrasting with the early prophylactic endodontic treatment of two replanted teeth in a patient with mature apices. The long-term development of invasive cervical resorption in one of the patient's life cycle highlights the importance of ongoing follow-up examinations for dental trauma victims.

Post-traumatic complications of severe luxations and replanted teeth.

AIM: The aim of this study was to evaluate the main post-traumatic complications of severe luxation and replanted teeth using clinical and radiographic analyses. MATERIALS AND METHODS: Eighty-three patients aged between 7 and 55 years old presenting 180 traumatized teeth that suffered extrusive luxation (n=67), lateral luxation (n=69), intrusive luxation (n=10) and tooth avulsion (n=34) followed by replantation were evaluated. The follow-up period was 24 months. The complications examined were: pulp canal obliteration, pulp necrosis and root resorption (infammatory and replacement). Furthermore, the relationship between time elapsed before receiving dental attendance and development of infammatory resorption was observed. RESULTS: Pulp necrosis was the main complication, occurring in 147 teeth (82.7%). All of the teeth that suffered intrusive luxation and tooth avulsion were diagnosed with pulp necrosis, with significant difference in comparison with another traumas (p<0.001/Fisher's exact test). Infammatory root resorption was observed in 20.5% of the cases and replacement resorption was more related to tooth replantation (94.1%), showing significant prevalence among tooth luxations (p<0.001/Fisher's exact test). In addition, it was noted that patients who seek treatment 9 weeks after the trauma episode presented 10 times more chance of developing infammatory resorption when compared with patients who seek treatment soon after dental trauma (Odds ratio test). CONCLUSION: It may be concluded that pulp necrosis was the main post-traumatic complication observed in traumatized teeth and that delay in seeking treatment may damage the prognosis of severe luxation and replanted teeth. CLINICAL SIGNIFICANCE: Clinical studies describing the main complications that may affect traumatized teeth present great relevance to make the population aware of the importance of seeking immediate treatment and to alert the professional to the need for follow-up. When traumatic injuries are diagnosed and treated early, post-traumatic complications may be controlled, allowing conservation of the tooth in oral cavity.

Εvaluation of a treatment protocol for unerupted maxillary central incisors: retrospective clinical study of 46 children.

AIM: To evaluate the clinical outcome of a treatment protocol performed in children with unerupted permanent maxillary central incisors, including surgical removal of any related obstruction and traction initiation in one stage, under fully repositioned flap, combined with pre- and post-operative orthodontics for space creation and final alignment. METHODS: Forty-six patients aged 7.3-12.7 years (mean = 9.44 ± 1.36) having 54 impacted maxillary central incisors were reviewed. The study group included 37 patients fully treated by us and nine referrals with eruption failure of impacted incisors following previous surgical removal of various obstructions. Detailed patient's clinical and radiographic data were recorded. RESULTS: Aetiology of unerupted incisors included 9 patients with odontomas, 24 with supernumerary teeth, 1 with skeletal lack of space, 1 with a dentigerous cyst, 4 with dilaceration, 1 with severe incisor MIH, 5 with luxation injuries to primary predecessors and 1 with coexisting dilaceration and odontoma. The total treatment time following the standardised protocol ranged from 5 to 21 months (mean 9.88 ± 3.10), while the time needed using different approaches (no pre-operative orthodontics or obstruction removal and then to wait over an assessment period) ranged from 12 to 18 months (mean 15 ± 2.12) and 17 to 30 months (mean 23.73 ± 5.14), respectively (p < 0.05). The time needed for full alignment depended on the inclination, the height of the impacted tooth (p = 0.001) and the patient's age (p = 0.002). Additionally, the absence of pre-operative orthodontics for space creation dramatically increased treatment time (p = 0.018). In contrast, the maturity of the impacted tooth and the developmental stage of the anterior teeth did not affect treatment time. Finally, when the location of the impacted tooth and the space availability allowed waiting for spontaneous eruption, treatment time was not statistically different from that of the main treatment protocol (p = 0.545). CONCLUSIONS: The studied treatment protocol appears ideal for successful results and minimum treatment time. Space creation followed by surgical removal of any obstruction together with orthodontic traction initiation produces excellent results, while waiting for spontaneous eruption is indicated only in cases of favourable patient's age and tooth location. Treatment initiation with operation in the absence of the required eruption space is not recommended, whereas in unfavourable cases obstruction removal without simultaneous orthodontic traction increases dramatically the total treatment time and requires an unnecessary second operation for traction.

Successful conservative treatment of dentigerous cyst following intrusion of lower primary incisors.

This paper reports on the development of a dentigerous cyst associated with a lower permanent incisor following intrusion of two lower primary incisors. The small root remnant of one of the traumatized primary incisors was associated with granulation tissue, while the second incisor was discolored and suspected of being non-vital. The associated permanent incisor and other adjacent incisors were apically and laterally dislocated from their natural site of eruption. The conservative treatment included extraction of the involved primary discolored incisor, as well as the root remnant, followed by removal of the granulation tissue. After 18 months of follow-up, the permanent incisors were erupting in normal position, without pathological signs of the dentigerous cyst. Following severe traumatic injury to a primary tooth, periodic radiographic follow-up, until eruption of the correspondent permanent tooth, is recommended.

Crown dilaceration in permanent teeth after trauma to the primary predecessors: report of three cases

Crown dilaceration of permanent teeth occurs due to the non-axial displacement of the already formed hard tissue portion of the developing crown at an angle to their longitudinal axis due to trauma to the primary predecessors. This is a rare condition, representing only 3% of the total of injuries to developing teeth and usually occurs in permanent maxillary incisors because of the close proximity of their tooth germs to the primary incisors, which are more susceptible to trauma. This alteration frequently results from the intrusion of a primary tooth when the child is around 2 years of age, at which time half of the crown of the permanent successor is already formed. Teeth with dilacerated crowns may either erupt with buccal or lingual displacement or remain impacted. The treatment may involve endodontic, orthodontic, restorative and prosthetic procedures. This paper reports the restorative treatment proposed to reestablish the esthetics and function of the affected teeth in three cases of crown dilaceration in permanent maxillary incisors after trauma to their primary predecessors.

An unusual foreign body in the nostril.

BACKGROUND: Intranasal teeth are uncommon. Causes include trauma, infection, anatomical malformations and genetic factors. They present mainly in children, and many are asymptomatic. METHODS: This report describes the finding of a tooth that had been displaced into the nasal cavity in a six-year-old girl. The history, clinical examination, findings and operative treatment are described. RESULTS: The child presented with nasal symptoms. Examination revealed a tooth in the right nasal cavity, confirmed by a lateral cephalogram radiograph. It was extracted under general anaesthesia. At follow up, the child was asymptomatic. CONCLUSION: This is an unusual case of a child presenting with an intranasal tooth and nasal symptoms following trauma a number of years earlier. The child underwent extraction of the tooth, and recovered well without any complications.

Treatment of invasive cervical resorption with sandwich technique using mineral trioxide aggregate: a case report.

This article presents two cases of large invasive cervical resorption (ICR) with maintenance of pulp vitality after treatment with mineral trioxide aggregate (MTA) in a sandwich technique.Invasive cervical resorption is a relatively uncommon but aggressive form of external resorption, primarily caused by dental trauma or injury of the cervical periodontal attachment. The resorptive process does not penetrate into the root canal, and the pulp is not involved in the first phase of the resorption. This feature differentiates external resorption from internal resorption. In most cases, invasive cervical resorption is found during routine radiographic or clinical examination. Different materials have been proposed for the treatment of external cervical resorption. Therapy can be effective when it 1) removes the etiological factors and 2) interrupts the progressive resorption mechanism.The key learning points of this article are the following: treatment strategy to arrest the cervical resorption process and to prevent further resorption without changing pulpal vitality and successful seal of invasive cervical resorption defect using MTA with a sandwich technique.