2015年 · 第50卷第12期

Modern orthodontic techniques and materials are emerging one after another, but the classical square wire arch directional force orthodontic technique is still a serious error in today's orthodontic treatmentThe most basic and effective method of deformity, its classical theory and clinical technique are timeless, and it is the basis of modern oral orthodontic technique.

Insufficient bone mass in posterior maxillary teeth caused by maxillary sinus vaporization and alveolar bone atrophy was once a difficult problem in dental implants. With the development of bone increment materials and techniques, the effect of this kind of surgery has been fully affirmed by lifting the maxillary sinus floor to form an effective osteogenic space so that the implant can obtain long-term stable support^[1,2,3,4,5]。 Among them, the application of maxillary sinus floor lift through the alveolar ridge (maxillary sinus lift) is increasingly widespread. In recent years, the tools and methods of internal lifting have been continuously improved, and performing internal lifting on the inclined maxillary sinus floor remains a challenge. In this study, ultrasonic osteotome combined with hydraulic lifting was used to carry out internal lifting on the inclined maxillary sinus floor, and good results were obtained.

Oral titanium implants have obtained a high success rate in the process of widespread clinical application. However, traditional titanium implants still have two potential problems^[1,2,3]On the one hand, with the passage of time, the soft tissue around the implant retreats, the risk of periimplant lesions increases, and the gray appearance of the neck of the implant is at risk of being exposed, and the aesthetic effect will be greatly affected^[3,4]。 On the other hand, despite the corrosion-resistant bio-inertia of titanium, rising titanium particle concentrations were found in bone tissue and regional lymph nodes close to the titanium implant^[5]。

nuclear factor kappa B is a major regulator of human immunity, inflammation and stress response. Recent studies have shown that nuclear factor kappa B plays an important role in regulating the occurrence, invasion and metastasis of breast cancer, prostate cancer, ovarian cancer, renal cell carcinoma and oral cancer^[1,2,3,4,5]The study of nuclear factor kappa B and its signaling pathway is of great significance for the basic research and clinical prevention and treatment of oral cancer.

Teeth are complex structures composed of inorganic components, mainly apatite crystals, and organic components such as collagen, very similar to the composition of bone tissue. Studies have confirmed that the cranial nerve crest is the source of growth and development of tooth germ, maxilla and related cartilage and nerves^[1,2]。 96% by weight of mature enamel is inorganic, 4% is organic and water; The ratio of inorganic matter to organic matter in dentin is 65:35; The ratio in cementum is (45:55) to (50:50); Alveolar bone consists of 65% inorganic matter and 35% organic matter and water^[3]。 Therefore, teeth, especially dentin, are a constituent component, very similar to bone tissue.

branchiogenic carcinoma (branchiogenic carcinoma) originates from branchial cleft cyst lining epithelial carcinoma. The vast majority are squamous cell carcinoma, and very few are mucoepidermoid carcinoma. Its incidence rate is extremely low. Less than 40 cases have been reported^[1]。 Because there are many kinds of diseases with lateral cervical cystic lesions, such as cystic necrotizing schwannoma, lymph node necrotizing granulomatous inflammation, lymphangioma, venous malformation, lymphoma with cystic degeneration and metastatic cystic squamous cell carcinoma of head and neck, etc., it is easy to be confused with branchial cleft carcinoma, so the pathological diagnosis of this disease can often be made after comprehensive and careful histological examination after operation, and it is an exclusive pathological diagnosis. The Affiliated Hospital of Inner Mongolia Medical University once treated a case of branchial cleft cancer, which is now reported as follows:

Professor Fu Minkui, a famous stomatologist, stomatological educator and orthodontic expert in China, a pioneer and academic leader of orthodontics in China, the founder of the Orthodontic Professional Committee of Chinese Stomatological Association, former vice president of School of Stomatology of Beijing Medical University, deputy director of Institute of Stomatology of Peking University, director of orthodontic department, and member of the 8th, 9th and 10th National Committee of the Chinese People's Political Consultative Conference, died in Beijing at 21: 45 on October 14, 2015 at the age of 78 due to ineffective treatment.