A Hormonal Imbalance- Its Impact On Eruption And Exfoliation: A Case Report

Delayed tooth eruption is the emergence of a tooth into the oral cavity at a time that deviates significantly from norms established for different race, ethnicity, and gender. It may be due to many local and systemic reasons, eruption delay of more than two years should be definitely investigated. Certain endocrinal hormonal imbalances that occur in infancy or early childhood can lead to many clinical manifestations like short stature, delayed tooth eruption and delay in major developmental milestones. The possibility of hormonal disturbances should be suspected when evaluating teenagers and adolescents with the complaint of delayed eruption, both physician and dentist should be aware of this clinical manifestation. This is a case report on delayed eruption of teeth in a teenager with undiagnosed hormonal imbalance who visited our department, a watchful eye and timely investigation led to the diagnosis of underlying organic problem.

A Novel RUNX2 Mutation in a Korean Family with Cleidocranial Dysplasia / 대한소아치과학회지

Cleidocranial dysplasia (CCD) is an autosomal-dominant disease characterized by the delayed closure of cranial sutures, defects in clavicle formation, supernumerary teeth, and delayed tooth eruption. Defects in the Runt-related transcription factor 2 (RUNX2), a master regulator of bone formation, have been identified in CCD patients. The aim of this study was to identify the molecular genetic causes in a CCD family with delayed tooth eruption.The 23-year-old female proband and her mother underwent clinical and radiographic examinations, and all coding exons of the RUNX2 were sequenced. Mutational analysis revealed a single nucleotide deletion mutation (NM_001024630.4 : c.357delC) in exon 3 in the proband and her mother. The single C deletion would result in a frameshift in translation and introduce a premature stop codon [p.(Asn120Thrfs*24)]. This would result in the impaired function of RUNX2 protein, which may be the cause of delayed eruption of permanent teeth in the family.

Characteristics and Treatment Methods of Eruption Disturbance / 대한소아치과학회지

The purpose of this study was to investigate the distribution of eruption disturbance and to analyze its causes, treatment methods, and duration of orthodontic traction, based on 703 patients with eruption disturbance who were treated in the pediatric dental clinic of Seoul National University Dental Hospital between July 2011 and June 2016.Eruption disturbance in pediatric patients was most prevalent in the maxillary canine, followed by the maxillary central incisor and maxillary first molar. Eruption disorder of the maxillary canine was more common in females (p < 0.001), whereas the maxillary central incisor (p = 0.009), maxillary first molar (p < 0.001) and mandibular first molar (p = 0.028) were more common in males than females.The most common causes of eruption disturbance were abnormality of the eruption pathway and the presence of obstacles in the pathway. Orthodontic traction was the most prevalent treatment choice for eruption disorder, mostly done for the maxillary central incisors. The duration of orthodontic traction was shorter with younger age (p < 0.001) and lower crown position (p < 0.001).It is important for pediatric patients to detect eruption disorders early through regular checkup, and it is necessary to initiate treatment at an appropriate time with an accurate diagnosis and treatment plan.

Factors and Treatments Influencing the Unilaterally Unerupted Maxillary Central Incisor / 대한소아치과학회지

The purpose of this study was to investigate the cause of eruption disturbance in the maxillary central incisor and establish the effective treatment plan by analyzing the vertical distance, angulation of long axis and root development of the tooth with eruption disturbance using the cone-beam CT.The average age of 134 patients diagnosed with unilaterally impacted maxillary central incisor was 7.9 years old and the male was 2.1 times higher than the female. The most common cause of eruption disorder was physical obstruction, especially mesiodens and odontoma. Of the teeth with unilateral eruption disorder, 78 cases erupted spontaneously and 56 cases erupted non-spontaneously after removal of physical obstruction.The possibility of spontaneous or non-spontaneous eruption in the unilaterally impacted maxillary central incisor depended on several factors, such as vertical distance, angulation of long axis and root development of unerupted tooth. The spontaneous eruption of the impacted maxillary cental incisor was most frequent at the angulation of long axis of 50 to 90 degrees, which is similar to the angulation of long axis of the normally erupted maxillary central incisor. In addition, the spontaneous eruption period of impacted maxillary central incisor was more influenced by the vertical distance than the angulation of long axis and the root development. Most of the teeth that showed non-spontaneous eruption had orthodontic traction, and these teeth were usually erupted within about 12 months. The period treated with orthodontic traction was no statistical significance with the vertical distance, the angulation of long axis, and the root development.This study will provide information on the cause of unilaterally impacted maxillary cental incisor and help to establish the future treatment plan.

Hipotiroidismo congénito y sus manifestaciones bucales / Congenital hypothyrodism and its oral manifestations

El hipotiroidismo es el más común de los trastornos de la tiroides, puede ser congénito si la glándula tiroides no se desarrolla correctamente (hipotiroidismo congénito). La predominancia femenina es una característica. Entre las características odontológicas del hipotiroidismo se observan labios gruesos, lengua de gran tamaño, que debido a su posición suele producir mordida abierta anterior y dientes anteriores en abanico, destaca que la dentición temporal y permanente presentan un retardo eruptivo característico y, aunque los dientes son de tamaño normal, suelen estar apiñados por el tamaño pequeño de los maxilares. Se presentan dos casos clínicos de pacientes de sexo femenino que acuden a la clínica de Especialidad en Odontopediatría de la Universidad Autónoma del Estado de México con diagnóstico de hipotiroidismo congénito.

Hypothyroidism is one of the most common thyroid disorders. Hypothyroidism can be congenital in cases when the thyroid gland does not develop normally. Female predominance is a characteristic of congenital hypothyroidism. Dental characteristics of hypothyroidism are thick lips, a large-sized tongue which, due to its position, can elicit anterior open bite as well as fanned-out anterior teeth. In these cases, delayed eruption of primary and permanent dentitions can be observed, and teeth, even though normal-sized, are crowded due to the small-sized jaws. This study presents clinical cases of female patients diagnosed with congenital hypothyroidism who sought treatment at the Dental Pediatrics Unit of the Autonomous University of the State of Mexico.

Cleidocranial dysplasia with spina bifida: a case report / Displasia cleido-craniana com espinha bífida: relato de caso

OBJECTIVE: To present and discuss a case of a rare disease in a 35 year old otherwise healthy maleIndian in origin reported to the Department of Oral Medicine and Radiology of the Dental College andResearch Institute, Bangalore, India. DISCUSSION: The cleidocranial dysplasia is a rare disease whichcan occur either spontaneously (40%) or by an autosomal dominant inheritance. The dentists are, mostof the times, the first professionals who patients look for to solve their problem, since there is a delayin the eruption and /or absence of permanent teeth. In the present case multiple missing teeth was thereason for patient’s visit to odontologist. CONCLUSION: An early diagnosis allows proper orientationfor the treatment, offering a better life quality for the patient.

OBJETIVO: Apresentar e discutir um caso de doença rara em paciente masculino, de 35 anos de idade, sadio, demodo geral, de origem indiana, que foi encaminhado ao Departamento de Medicina Bucal e Radiologia da Escola deOdontologia e Instituto de Pesquisa, Bangalore, Índia. DISCUSSÃO: A displasia cleidocraniana é uma doença raraque pode ocorrer espontaneamente (40%) ou por herança autossômica dominante. O cirurgião-dentista é, na maioriadas vezes, o primeiro profissional que o paciente procura para solução de seu problema, uma vez que há demora na erupção e/ou ausências de dentes permanentes. No presente caso, múltiplos dentes ausentes foram a razão para opaciente visitar o dentista. CONCLUSÃO: O diagnóstico precoce permite a orientação adequada para o tratamento,visando melhor qualidade de vida ao paciente.

Surgical and Orthodonic Treatment of Impacted Teeth Associated with Dentigerous Cysts : Case Report

Differential approaches in the maloclusion with canine impaction / 대한치과교정학회지

During diagnostic process of the orthodontic patients, it is not unusual to find canine impaction. Generally, the chief complaint of the patients is crowding or antetior crossbite which is not related with canine impaction, but sometimes they complainted delayed eruption of the canine or deviation of the adjacent teeth caused by canine impaction. Orthodondists have to make the proper treatment plan according to final treatment goals. On the following cases, two patients were diagnosed as a malocclusion with canine impaction, and were treated by different accesses, one by extraction, and the other by non-extraction each.