A Modified Palatal Appliance for Forced Eruption of Impacted Central Incisor.

A 9-year-old female was referred by her general dentist for an evaluation of an impacted maxillary left central incisor. Her maxillary left primary incisors showed crossbites and her right central incisor showed an edge-to-edge bite which caused gingival recession on the mandibular right central incisor. After treatment, the impacted maxillary central incisor erupted successfully.

Histological Alterations from Condyle Repositioning with Functional Appliances in Rats.

Objective: This study was designed to assess the morphological and histological alterations of the condyle of rats undergoing forward mandibular repositioning via functional appliance.

Materials And Methods: Functional appliances were mounted onto the upper jaws of rats. Morphological analysis was conducted on micro-CT images of sacrificed animals.

Localization of ODAM, PCNA, and CK14 in regenerating junctional epithelium during orthodontic tooth movement in rats.

Objective: To identify the regenerating junctional epithelium (JE) during orthodontic tooth movement in rats.

Materials And Methods: Closed-coil springs were used to create a 20 g mesial force to the maxillary first molars. On days 1, 3, 7, 10, and 14 after force application, histologic changes in JE were examined by immunohistochemistry using proliferating cell nuclear antigen (PCNA), odontogenic ameloblast-associated protein (ODAM), and cytokeratin 14 (CK14).

Identification of supernumerary teeth in 2D and 3D: review of literature and a proposal.

Supernumerary teeth occur in both syndromic and nonsyndromic patients, and dental professionals are likely to encounter such teeth in their professional careers. There are three main numbering systems used to identify teeth today: the Universal/ National, the Palmer/Zsigmondy notation, and the Federation Dentaire Internationale (FDI) numbering systems. However, a review of the literature suggests that none of these three consistently addresses the identification of supernumerary teeth.

A case of Klippel-Feil and Turner syndromes.

The purpose of this paper was to describe the clinical case of a 12-year-old female patient with Klippel-Feil syndrome (KFS) combined with Turner syndrome (TS) and a submucous cleft palate (CP). The patient's general appearance was characterized by KFS, a clinical triad consisting of congenital fusion of at least 2 of 7 cervical vertebrae with a short neck, limited head motion, and a low posterior hairline. Three-dimensional images from cone-beam computed tomography (CBCT) revealed cervical vertebrae anomalies and submucous CP.

Localization of osteopontin and osterix in periodontal tissue during orthodontic tooth movement in rats.

Objective: To evaluate the localization of osteopontin (OPN) and osterix in periodontal tissue during experimental tooth movement with heavy force in rats.

Materials And Methods: Nickel-titanium closed-coil springs were used to create a 100 g mesial force to the maxillary first molars. On days 3, 7, 10, and 14 after force application, histological changes in periodontium were examined by immunohistochemistry using proliferating cell nuclear antigen (PCNA), OPN, and osterix.

3-Dimensional cone-beam computed tomography analysis of transverse changes with Schwarz appliances on both jaws.

Objective: To evaluate transverse changes from Schwarz appliances on both jaws in young, growing patients using cone-beam computed tomography (CBCT).

Materials And Methods: All subjects had Angle Class I molar relationships and crowding. They were randomly divided into two groups; 30 expanded and 30 control subjects.

Human dental pulp cell culture and cell transplantation with an alginate scaffold.

Many studies on tissue stem cells have been conducted in the field of regenerative medicine, and some studies have indicated that cultured dental pulp mesenchymal cells secrete dentin matrix. In the present study we used alginate as a scaffold to transplant subcultured human dental pulp cells subcutaneously into the backs of nude mice. We found that when beta-glycerophosphate was added to the culture medium, dentin sialophosphoprotein mRNA coding dentin sialoprotein (DSP) was expressed.