Intrusive luxation is considered one of the most severe traumatic injuries, and it is classified as severe tooth displacement which can be full or partial, where the tooth is displaced in the apical direction into its socket. Etiological factors include falls from their height, bicycle accidents, sports accidents, and fights. [3][4][5] This type of injury is more common in the deciduous dentition, and intrusive luxation of permanent teeth is rare compared to other types of luxation. 6 Intrusion comprises approximately 2.45% of all traumatic injuries of the permanent teeth. Most commonly teeth that are completely intruded also have lateral displacement of the crown. 7 Pulp necrosis 8 and root resorption 7,9 are the most prevalent complications in the repair process after repositioning.The diagnosis of these cases requires attention because total intrusive luxation can be confused with tooth avulsion. 8 Thus, clinical observation, perception of phlogistic signs, and complementary imaging such as periapical, lateral extraoral, occlusal, panoramic radiographs, and computed tomography are important to investigate the direction of tooth displacement. 10,11 The intrusion of permanent teeth into the nasal cavity is rare and can cause complications such as hemorrhage, infection, nasal and/ or airway obstruction, and sinusitis. Early diagnosis is extremely important to minimize morbidity. 10 There is still no consensus on the best form of treatment for permanent tooth intrusion. 12 However, the International Association
Objective To verify the effect of orthognathic surgery (OS) on nasal dimensions and its correlation with respiratory symptoms in patients operated on over the past 20 years. Design Retrospective study. Setting Tertiary level craniofacial hospital. Participants 535 patients with CLP previously repaired, without syndromes, age over 18, who performed OS between 2000 and 2019 and rhinomanometric evaluation pre and post OS. Interventions Maxillary advancement isolated and combined with turbinectomy and/or mandibular osteotomy. Main Outcome Measures Minimum nasal cross-sectional area (CSA) assessed by posterior (PR) and anterior rhinomanometry (AR), nasopharyngeal cross-sectional area (NCSA) verified by modified AR, and self-perceived respiratory symptoms through a questionnaire. Results After OS, there was a significant increase in CSA assessed by PR (p < .001) and AR (p < .001), while there was no significant difference in NCSA (p = 0.319). Regarding respiratory symptoms after OS, 26.3% showed improvement in nasal obstruction, 28.5% in oronasal breathing, 18.5% in snoring, and 5.2% in respiratory obstruction during sleep. However, a weak correlation between increased CSA and improvement of symptoms was observed. In the first decade, lower values of CSA (p < .001) and NCSA (p < .001) were observed compared to the second decade. Both periods showed a significant increase in CSA (p < .001). Conclusions Nasal dimensions and breathing symptoms were improved by OS when combined with turbinectomy. Comparing the results of patients operated on between two different decades, patients had more favorable conditions for breathing in the most recent decade of care. However, this was not statistically correlated with the improvement in patient symptoms in this study.
Introduction: Patients with transverse maxillary deficiency may have unilateral or bilateral posterior crossbite, crowded and rotated teeth and narrow palate. The treatment for adults is surgically assisted rapid maxillary expansion, a procedure that results in changes not only to bones, but also to teeth, nasal cavity, air space, lips and surrounding soft tissues. Objective: This study evaluated dentoskeletal changes in patients that underwent surgically assisted rapid maxillary expansion (SARME). Methods: Cone beam computed tomography (CBCT) scans were obtained before and after SARME. The thickness of buccal and lingual cortical bone and the angle of the long axis of posterior maxillary teeth were measured. Data were analyzed statistically. Results showed changes in thickness of buccal and lingual cortical bone and tooth movement and tipping. Conclusion: Tooth tipping increased and buccal bone thickness decreased, although osteotomies were used.
Efeito da cirurgia ortognática sobre a respiração em pacientes com fissura labiopalatina: 20 anos de experiência no HRAC-USP Diante da restrição de crescimento maxilar imposta pelas cirurgias primárias, relevante parcela dos indivíduos com fissura labiopalatina (FLP) desenvolvem discrepâncias maxilomandibulares com indicação para cirurgia ortognática (CO). Esta, por sua vez, realiza osteotomias e movimentações no complexo maxilomandibular que interferem nas dimensões nasais. Nesse contexto, o objetivo deste trabalho foi verificar o efeito da CO com avanço maxilar sobre as dimensões das vias áreas por meio de avaliação instrumental (rinomanometria pela técnica fluxo-pressão), correlacionando as possíveis mudanças com a autopercepção dos sintomas respiratórios relacionados. Adicionalmente, objetivou-se comparar os resultados pré e pós-operatórios entre os tipos de fissuras, as diferentes osteotomias e entre dois períodos distintos (2000 a 2009 e 2010 a 2019). Para tanto, foi realizada análise retrospectiva longitudinal por meio de dados secundários. Foram coletados os valores de área seccional transversa (AST) nasal, determinados por rinomanometria posterior (RP) e anterior (RA), de AST nasofaríngea avaliada pela RA modificada e os sintomas respiratórios, por meio de questionário específico. Constituíram a amostra 535 pacientes (218 mulheres e 317 homens) com FLP previamente reparada, sem síndromes, idade ≥ 18 anos, que realizaram CO de avanço maxilar isolada ou em combinação com procedimentos envolvendo nariz e/ou mandíbula entre os anos de 2000 e 2019, e que foram submetidos ao exame de rinomanometria pré e pós cirurgia. Após a CO, os participantes apresentaram um aumento significativo da AST nasal avaliada tanto pela RP (p<.001) como pela RA (p<.001). No entanto, não foi evidenciada diferença significativa na AST nasofaríngea (p=0.319). Na comparação entre os grupos, não foram observadas diferenças significativas entre os valores de AST nasal (p=0.601) e nasofaríngea (p=0.654) entre tipos de fissuras avaliados. Na comparação entre as cirurgias, foi demonstrado que os grupos associados à realização de turbinectomia durante a CO exibiram diferença significativa entre a AST pré e pós-CO (p<.001). Na primeira década, menores valores de AST nasal (p<.001) e AST nasofaríngea (p<.001) foram verificadas em comparação a segunda década, tanto no pré como no pós cirúrgico. No entanto, ambos períodos exibiram aumento significativo da AST nasal (p<.001). Em adição, 26.3%, 28.5%, 18.5% e 5.2% apresentaram melhora da obstrução nasal, respiração oronasal, ronco e obstrução respiratoria durante o sono, respectivamente. Todavia, foi demonstrado correlação fraca entre a melhora dos sintomas e o aumento de AST nasal. Conclui-se, assim, que a CO teve influência positiva sobre a permeabilidade nasal dos pacientes com FLP. Melhores resultados foram observados nos grupos submetidos à CO associada a procedimentos nasais. Constatou-se que, ao longo de duas décadas, os pacientes vêm apresentando condições mais favoráveis à respiração. Ape...
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.
hi@scite.ai
10624 S. Eastern Ave., Ste. A-614
Henderson, NV 89052, USA
Copyright © 2024 scite LLC. All rights reserved.
Made with 💙 for researchers
Part of the Research Solutions Family.