We report a clinical case of type Ⅲ dens invaginatus with endodontic-periodontal lesion in a maxillary lateral incisor. The palatal radicular anomaly predisposed the tooth to periodontal lesions. The caries along the palatal groove caused tooth pulp necrosis and periapical lesions. By means of microscopic root canal therapy, apical surgery, and guided periodontal tissue regeneration, the apical and periodontal infection were controlled, and the affected tooth was retained.
Dens in Dente ; Dental Pulp Necrosis ; Humans ; Incisor ; Root Canal Therapy

Amelogenesis imperfecta (AI) is a hereditary disease that affects enamel formation. The patients with AI have esthetic and functional problems due to damage of multiple teeth. So most AI patients resolve these problem through the conservative and prosthodontic treatments. In our case, It was difficult to obtain good results in means of conservative and prosthodontic treatments, because the AI patient had skeletal Class III malocclusion. Moreover, because of vertical dimension loss due to severe dental caries and maxillofacial skeletal disharmony, the ordinary prosthodontic treatment was troublesome. So we planned orthognathic surgery to resolve these problems. After the endodontic treatment, temporary restoration was delivered for stable post-operative occlusion. Then orthognathic surgery was done, and final restoration was delivered in stable period. We obtained satisfactory results in esthetic and functional aspects through multidisciplinary management(conservative treatment, prosthodontics and orthognathic surgery).]]>
Amelogenesis Imperfecta ; Amelogenesis ; Dental Caries ; Dental Enamel ; Genetic Diseases, Inborn ; Humans ; Malocclusion ; Orthognathic Surgery ; Prosthodontics ; Tooth ; Vertical Dimension

X-linked hypophosphatemia (XLH) is a hereditary metabolic disease caused by the loss of phosphate through the renal tubules into the urine, and an associated decrease in serum calcium and potassium phosphate. Its dental features include spontaneous dental abscesses that occur in the absence of trauma or dental caries. The aim of this case report was to describe the dental problems of XLH patients and to evaluate limitations in their treatment. A 14 year old male and a 38 year old female with XLH were referred to the Department of Conservative Dentistry for endodontic treatment. The dental findings were periapical abscesses without obvious trauma or caries. Conservative endodontic treatment was performed in teeth with pulp necrosis and abscess. In case 1, the treated teeth showed improvements in bone healing, without clinical symptoms. However, in case 2, the implants and the treated tooth showed hypermobility, and the final restoration was therefore postponed. Early diagnosis, periodic examinations, and communication with the patient's pediatrician are important in the dental management of patients with XLH.
Abscess ; Calcium ; Dental Caries ; Dental Pulp Necrosis ; Dentistry ; Early Diagnosis ; Familial Hypophosphatemic Rickets* ; Female ; Humans ; Hypophosphatemia ; Male ; Metabolic Diseases ; Periapical Abscess ; Potassium ; Tooth

Dens invaginatusis a rare malformation of the teeth, resulting in frequent pulp necrosis and chronic apical periodontitis. In this paper, the apical barrier technology was used to treat a case of chronic apical periodontitis caused by type Ⅱ dens invaginatus.
Dens in Dente ; Dental Pulp Necrosis ; Humans ; Incisor ; Periapical Periodontitis ; Root Canal Therapy

Dens invaginatus (DI) is a developmental anomaly as a result of a deepening or invagination of the enamel organ into the dental papilla during tooth development. In addition, DI is a malformation with varying anatomical features, which poses numerous challenges to treatment. Endodontic treatment of dens in dente is one of the most complica-ted cases of DI. Herein, an immature lateral incisor that employed regenerative endodontic treatment was presented. The mentioned tooth was diagnosed with DI, pulp necrosis, and chronic apical periodontitis. Hence, a favorable prognosis has been shown by a 2-year review with cone beam computed tomography. The tooth was functional with normal periodontal parameters and exhibited a normal response to the electric pulp sensibility test. Thus, regenerative endodontic treatment can also be recommended to endodontists for teeth with DI.
Humans ; Regenerative Endodontics ; Incisor/diagnostic imaging* ; Dens in Dente ; Dental Pulp Necrosis/therapy* ; Odontogenesis

To obtain the caries experience and, plaque accumulation severity and pit and fissure morphology in first permanent molars in 7-8 children in Wuhan, as a reasonable prediction of caries risk and preventive attention in the future, a convenient sample of five primary schools in the vicinity of the Wuhan University School and Hospital of Stomatology was drawn. Two calibrated examiners orally examined all present grade 2 children in the classroom, using standard caries plaque and tooth morphology criteria. Dental caries was scored at enamel (D(2)) and dentine (D(3)) for tooth and surface level. Independent variables were age, gender and school. Data analysis used analysis of variance and t-test. The sample comprised 1 043 7- and 8-year-olds. The prevalence of dental caries in permanent dentition was 8.7% and in primary dentition, 68.7%. Mean Decayed, Missing, Filled Teeth/S (DMFT/S) scores were 0.11 and 0.14, respectively. Mean dmft/s scores were 2.8 and 5.0. The d-component constituted 75% of the d(3)mft index, while enamel carious lesions constituted 36% of the total number of carious lesions (d(2,3)-component). Prevalence of medium and deep pits and fissures was 84.6%. Prevalence of medium and severe plaque accumulation was 67.4%. Prevalence of dental caries in the deciduous and permanent dentitions of 7- to 8-year-old children was high. Deep pits and fissures in high caries risk children should be sealed.
Child ; China ; epidemiology ; DMF Index ; Dental Caries ; epidemiology ; prevention & control ; Dental Enamel ; pathology ; Dental Fissures ; pathology ; Dental Plaque Index ; Dentin ; pathology ; Dentition, Permanent ; Female ; Humans ; Male ; Molar ; pathology ; Prevalence ; Tooth, Deciduous

Pulpal and periapical diseases are the most prevalent dental conditions damaging the oral health of children in China. In view of China's national condition, the level of diagnosis and treatment for pulpal and periapical diseases of deciduous teeth is uneven and clinically there are inconsistent standards on the selection of operation methods for the endodontic treatment in deciduous teeth. Targeting these problems, the Society of Pediatric Dentistry, Chinese Stomatological Association organized experts from several famous universities and hospitals in China to carry out a panel discussion. The results of domestic and overseas researches and diagnosis and treatment experiences on dental pulp disease and periapical disease of deciduous teeth were also referred to. The present guideline was finally developed for the reference of dental clinicians.
Child ; Dental Care ; Dental Pulp ; Dental Pulp Necrosis ; Humans ; Periapical Diseases ; Tooth, Deciduous

This report describes clinical cases of a palato-gingival groove on a maxillary lateral incisor with associated localized periodontal disease and pulp necrosis. The tooth of the first case was extracted because of severe bone destruction. The palato-gingival groove of the second case was eliminated using a round bur, and the resulting defect was filled with synthetic graft and covered by an absorbable membrane. Both diagnosis and treatment of palato-gingival groove were very difficult and usually extraction of the involved tooth is the treatment of choice, but combined endodontic-periodontic treatment allowed the tooth to be saved.
Dental Pulp Necrosis ; Diagnosis ; Incisor* ; Membranes ; Periodontal Diseases ; Tooth ; Transplants

Numerous cases of enamel renal syndrome have been previously reported. Various terms, such as enamel renal syndrome, amelogenesis imperfecta and gingival fibromatosis syndrome, and enamel-renal-gingival syndrome, have been used for patients presenting with the dental phenotype characteristic of this condition, nephrocalcinosis or nephrolithiasis, and gingival findings. This report describes a case of amelogenesis imperfecta of the enamel agenesis variety with nephrolithiasis in a 21-year-old male patient who complained of small teeth. The imaging modalities employed were conventional radiography, cone-beam computed tomography, and renal sonography. Such cases are first encountered by dentists, as other organ or metabolic diseases are generally hidden. Hence, cases of amelogenesis imperfecta should be subjected to advanced diagnostic modalities, incorporating both dental and medical criteria, in order to facilitate comprehensive long-term management.
Amelogenesis Imperfecta* ; Amelogenesis* ; Cone-Beam Computed Tomography ; Dental Enamel Hypoplasia ; Dental Enamel* ; Dentists ; Fibromatosis, Gingival ; Humans ; Kidney Diseases ; Male ; Metabolic Diseases ; Nephrocalcinosis ; Nephrolithiasis* ; Phenotype ; Radiography ; Tooth ; Young Adult

This study is based on the result of oral examination of 'A' airliner employees in the period of June 1997 and December 1997. The purpose of this study is to analyze the distribution of dental diseases among workers and the relationship between income level and dental healthiness. Based on the above analysis, this study further tries to indirectly evaluate the method of prophylaxis. Following is the list of basic findings of this study: Firstly, it was found that male workers tend to have inferior dental condition compared with female workers. Also, dental condition of technicians was found to be worse than that of office workers. Secondly, it was found that dental caries decreased with the age. However, periodontal disease was increasing with the age. Therefore, this result leads us to convince that the education should be focused on 'how to brush your teeth' in order to prevent periodontal diseases. Thirdly, more than 40% of the examined were found to be carrying dental calculus related diseases (67.2%) and cervical abrasion (40.5%), respectively. In conclusion, we became to know that the treatment of cervical abrasion and dental calculus at the Dental Clinic is effective in helping 'A' Airliner employees to have better dental status.
Calculi ; Dental Calculus ; Dental Caries ; Dental Clinics ; Diagnosis, Oral* ; Education ; Female ; Humans ; Male ; Periodontal Diseases ; Stomatognathic Diseases