Malocclusion Associated With Temporomandibular Joint Anterior Disc Displacement and Condylar Resorption in Adolescents: A Cross-Sectional Study.

Background: Anterior disc displacement (ADD) is the most common type of temporomandibular joint (TMJ) internal derangement and may lead to condylar resorption (CR) during the adolescence period, but the specific malocclusion associated with ADD and CR remains unclear.

Objective: This study aimed to investigate the malocclusion associated with TMJ ADD and CR in adolescents.

Methods: This cross-sectional study included a clinical examination of adolescent patients aged 11-19 years.

Biological characteristics of microRNAs secreted by exosomes of periodontal ligament stem cells due to mechanical force.

Background: Orthodontic tooth movement (OTM) has previously been considered an inflammatory process. However, recent studies suggest that exosomes may play an important role in the cellular microenvironment of OTM. microRNAs (miRNAs) are one of the major constituents of exosomes.

Study on the alleviation of Fengshi Gutong capsule on rheumatoid arthritis through integrating network pharmacology and experimental exploration.

Ethnopharmacological Relevance: Fengshi Gutong (FSGT) capsule, a traditional Chinese medicine formula, has effects including warming meridians and dispersing cold, and relieving pain by dredging collaterals. FSGT is generally used for the treatment of rheumatoid arthritis (RA) in clinic in China.

Aim Of The Study: This study aims to investigate the alleviation provided by FSGT capsule on RA in vivo and the engaged mechanism.

[Comparison of digital model and dental plaster model in evaluation of bilateral cleft lip and palate].

Purpose: To compare the reliability of digital model and plaster model on evaluation of bilateral cleft lip and palate.

Methods: Nineteen pairs of digital and plaster model obtained from bilateral cleft lip and palate patients were measured, including nine measurements, such as maxillary alveolar length, width, cleft width, the deviation of maxillary middle line. One-way ANOVA was conducted for statistical analysis with SPSS 24.

Oblique Plane Cutting of Cone Beam Computed Tomography Analysis on the Safe Zone for Micro-Implants of Maxillary Molar Region.

Objective: To explore the safe zone for micro-implants of the maxillary molar region by oblique plane cutting mode of cone beam computed tomography (CBCT).

Methods: Thirty-nine patients with orthodontic alignment were enrolled with CBCT. In this study, the areas between the maxillary second premolar and the first molar were analyzed by the image reconstruction with CS 3D Imaging Software.

[Efficacy of semiconductor laser therapy combined with botulinum toxin A type injection in treatment of temporomandibular disorders].

Purpose: To observe the efficacy of semiconductor laser therapy in combination with botulinum toxin A type injection in treating temporomandibular disorders and the influence on serum levels of interleukin(IL)-1 and tumor necrosis factor(TNF)-α.

Methods: Ninety patients with temporomandibular disorders were selected and randomly divided into control group and treatment group with 45 cases in each group. Patients in the control group received semiconductor laser therapy,once per day and 1 course for 1 week.

[Investigation on knowledge, attitudes and practice of oral heath in 275 Kazak people in Changji district].

Purpose: To explore the situation of Kazak people's knowledge, attitude and practice (KAP) about oral health and to offer scientific evidence for carrying out oral health education for Kazak people in Xinjiang Changji district.

Methods: Three hundred Kazak people were randomly included from those who went to the People's Hospital, Department of Stomatology in Xinjiang Changji district for oral examination to conduct a survey on oral KAP. Two hundred seventy-five valid questionnaires were obtained.

[Effect of semi-fixed Twin-block appliance on temporomandibular joint remodeling].

Purpose: To evaluate quantitatively the effect of semi-fixed Twin-block appliance on the temporomandibular joint remodeling during the Class II malocclusion treatment.

Methods: Twenty two Class II division 1 patients treated with semi-fixed Twin-block appliance were included. Pre- and post-orthopedic treatment cephalometric data were analyzed with SPSS13.

[Study on the teaching mode and quality management of orthodontic education in undergraduates].

Orthodontic teaching, especially in undergraduates is the most difficult part in dental education, not only on the aspect of theoretical teaching covering a wide range of disciplines in limited teaching hours, but also their application in clinical practice. With the aim of training qualified dental practitioner with global competitiveness, improving the quality of training curriculum, the Orthodontic Department of Shanghai Jiao Tong University College of Stomatology has persisted in researching and reforming the teaching system. This paper described the current situation of orthodontic teaching and the concept of quality management.

[Non-extraction treatment in borderline class III malocclusion].

Purpose: To evaluate the effect of non-extraction treatment protocol combined with rapid palatal expansion and lower molar distalization in borderline Class III malocclusion in adolescents.

Methods: Nine borderline Class III patients (average age: 13.4 ± 0.

[Correlation of adolescents' skeletal maturation determined by cervical vertebrae and hand-wrist in Shanghai region].

Purpose: The aim of this study was to investigate the correlation between the skeletal maturation determined by cervical vertebrae and hand-wrist, and to explore the possibility of using lateral cephalograms to evaluate physical development stages of orthodontic patients.

Methods: The samples were derived from 170 pairs of lateral cephalograms and hand-wrist radiographs taken before orthodontic treatment (52 males, 118 females; 5-18 years of age). Cervical vertebral development was evaluated by the method of Hassel and Farman.

[A study of highpull extraoral traction on the treatment of growing patients with skeletal Class II malocclusion].

Purpose: To evaluate the effect of highpull extraoral traction on growing patients with skeletal Class II malocclusion.

Methods: 11 pairs of cephalograms obtained before and after highpull extra-oral traction treatment were used in this study, treatment changes were measured with Pancherz analysis, and compared with the control group. Independent samples group t test with SPSS 11.

[Quantitative assessment to the effect of HGAC treatments].

Objective: To evaluate the treatment effect of skeletal class II malocclusion with HGAC.

Methods: Seventeen skeletal Class II cases were selected and treated with HGAC, pre-treatment and post-treatment cephalometric radiographs were analyzed by Pancherz analysis.

Results: Maxillary growth was inhibited by HGAC, especially in vertical direction.

[A comparison of three cephalometric analysis on the evaluation of orthodontic treatment].

Objective: To analyze the reliability of different cephalometric superimposition methods for evaluation of orthodontic treatment.

Methods: The material consisted of fourteen pairs of cephalograms obtained before and after Herbst treatment. Each pair of the cephalograms were traced, superimposed by means of the three different superimposition methods three times each.

[A comparative study on clinical effectiveness of activator and Headgear-Activator].

Objectives: Compare the effects of Activator and Headgear-Activator on growing patients with Class II malocclusion.

Methods: The material consisted of 36 pairs of cephalograms, among which 12 cases were treated with Activator, 17 cases with Headgear-Activator and 9 cases without treatment for control. A reference grid was created to evaluate the skeletal and dental changes quantitatively.