Relationship of Malocclusions with Disorders of the Temporomandibular Joint in Children of CALI-Colombia.

OBJECTIVE: The aim of this study was to determine the relationship of malocclusion with the presence and severity of temporomandibular disorders (TMDs) in children. MATERIALS AND METHODS: A clinical examination was performed in 87 patients (from 4 to 14 years of age) who attended the dentistry clinics of Universidad del Valle. RESULTS: The 77 patients studied had malocclusions; 55 patients had TMD and 67.3% were female. The most frequent symptom of TMD was articular unilateral noise with 33.8%, followed by pain in at least one masticatory muscle with 26%. TMJ pain was observed in 24.7% of the patients. There was a statistically significant relationship between the presence and severity of TMD with type of dentition and transverse malocclusion, respectively. CONCLUSION: The presence of TMD in children with malocclusion presented in a high frequency. TMD depends on the type of dentition and its severity is dependent on transverse malocclusion.

Alternative of timely treatment of unilateral posterior cross-bite in primary and mixed early dentition. Case series / Tratamiento de la mordida cruzada posterior unilateral en dentición primaria y mixta temprana: Serie de casos

Introduction Unilateral posterior cross bites (UPCB) are one of the most frequent types of malocclusions found in both primary and early mixed dentitions. Due to its multifactorial origin, its treatment is focused not only on the correction of malocclusion, but also on long-term functional and occlusal stability that reduces alterations in the growth and development of the stomatognathic system at an early age. The objective of this series of cases is to present two alternatives of timely treatment for this malocclusion. Description of the cases The first case is an 8-year-old patient with left UPCB who receives controlled palatal expansion treatment with a Hyrax screw with acrylic splint, in which favorable results are obtained in a short time and with long-term stability. The second case, a 4-year-old patient with a right UPCB is presented with Planas' direct tracks, achieving a desired mandibular postural change. Discussion The treatment alternatives presented, several authors have reported a series of benefits obtained from the type of intervention that not only achieve the correction of malocclusion, but also achieve the improvement of structures that make up the craniofacial complex, within which highlights the desired long-term stability. These benefits are obtained through the selected treatment alternative, according to the diagnosis and clinical characteristics presented in each patient and justifies the decision to perform an early intervention especially in this type of malocclusion. Conclusion The early treatment of the unilateral posterior crossbite should be selected according to the type of dentition and the patient's need, which favors the proper growth and development of the stomatognathic system.

Introducción: Las mordidas cruzadas posteriores unilaterales (MCPU) constituyen uno de los tipos de maloclusiones más frecuentes encontrados tanto en dentición primaria como en dentición mixta temprana. Debido a su origen multifactorial su tratamiento se encuentra enfocado no solo en la corrección de la maloclusión, sino en obtener una estabilidad oclusal y funcional a largo plazo que disminuya las alteraciones en el crecimiento y desarrollo del sistema estomatognático en edades tempranas. El objetivo de esta serie de casos es presentar dos alternativas de tratamiento oportuno para esta maloclusión. Descripción de los casos: El primer caso es un paciente de 8 años de edad con MCPU izquierda quien recibe tratamiento de expansión palatina controlada con un tornillo tipo Hyrax con férula acrílica, en el cual se obtienen resultados favorables en corto tiempo y con estabilidad a largo plazo. El segundo caso es una paciente de 4 años de edad con MCPU derecha a la cual se le realizan Pistas Directas Planas logrando un cambio postural mandibular deseado. Discusión: En las alternativas de tratamiento presentadas, varios autores han reportado una serie de beneficios obtenidos a partir del tipo de intervención que no solo logran la corrección de la maloclusión, sino que a su vez alcanzan la mejoría de estructuras que componen el complejo craneofacial, dentro de los cuales se destaca la estabilidad a largo plazo deseada. Estos beneficios se obtienen a través de la alternativa de tratamiento seleccionada, según el diagnóstico y las características clínicas presentadas en cada paciente y justifica la decisión de realizar una intervención temprana especialmente en este tipo de maloclusión. Conclusión: El tratamiento temprano de la mordida cruzada posterior unilateral debe ser seleccionado según el tipo de dentición y necesidad del paciente, lo que favorece el adecuado crecimiento y desarrollo del sistema estomatognático.