2017年 · 第52卷第06期

Three-dimensional printing is the key link of digital oral restoration, accompanied by the maturity and rapid development of digital optical scanning, computer-aided design and digital oral prosthesis manufacturing chain. As a new additive manufacturing technology, compared with traditional manufacturing technology, 3D printing can improve the degree of freedom of restoration processing, and is especially suitable for making oral restorations with complex shapes, especially in dental crownsIt has unique advantages in surface production, which fundamentally changes the experience and skill processing mode of traditional dental prosthesis. The three-dimensional printed restoration has high precision and low cost, and is especially suitable for batch customization and production of various kinds of oral restoration with complex shapes; The utilization rate of raw materials is also high, the material waste is reduced, and the manufacturing cost of the complex oral prosthesis is not increased additionally, so that the manufacturing cost of the oral prosthesis is greatly reduced. Therefore, at present, three-dimensional printing is the most widely used and the most active research in the field of dental prosthodontics, which greatly promotes the development of prosthodontics.

There are many classification methods for temporomandibular disorders (TMD) in the world. In 1991, with funding from the National Institute of Dental Research (NIDR), Samuel F. Dworkin and Linda LeResche, University of Washington, USA Professor is responsible for developing research diagnostic criteria for TMD (RDC/TMD)^[1], and was officially published in 1992, and was generally accepted by scholars at home and abroad. The classification consists of two parts, axis I is clinical diagnosis, axis II is pain, dysfunction and psychological state assessment. This classification excludes some clinically rare diagnoses, such as muscle spasm, myositis and muscle contracture of muscle diseases, from TMD. The etiology, pathological mechanism and clinical manifestations of these muscle diseases are quite different from TMD. At present, there is no definite diagnostic criteria.

Inspirational, radical, innovative, glowing, courageous, benevolent are just a few of the words used to describe Professor Aubrey Sheiham. During his brilliant academic career of more than 50 years, Aubrey Sheiham has made great contributions in the fields of oral clinical medicine, stomatological research, oral health policy and public health, and has made a great impact on generations of oral researchers around the world.The Lancet、British Medical JournalHe has published more than 480 academic papers in other famous academic journals, and has received numerous awards and honors.

severe congenital neutropenia (SCN) is a rare disease characterized by a lack of mature neutrophils in the bone marrow and peripheral blood. The neutrophil count is generally less than 0.5×10⁹/L, the incidence rate is 1/1 million ~2/1 million^[1]。 Due to the lack of neutrophils and low disease resistance, patients are prone to repeated serious bacterial and fungal infections, and often die in infancy due to serious infections. SCN patients often suffer from omphalitis shortly after birth, which may be their first symptom; Otitis media, pneumonia, upper respiratory tract and skin infections, and liver abscess were the most common^[2,3]。