Dent mater J: additive manufacturing of dental polymers: a review of procedures, materials and Applications

Dent mater J: additive manufacturing of dental polymers: a review of procedures, materials and Applications

The application of additive manufacturing (AM) process in dentistry is increasing gradually. The potential program of is to connect materials layer by layer through 3D data model Four independent incremental processes (laser stereolithography, polymer spray, digital light processing, melt deposition manufacturing) are mainly used in dental polymers. however, the amount of AM polymer materials that can be used in dentistry is less than that in other fields In addition, the application of am in dentistry is limited (such as research model, maxillofacial prosthesis, orthodontic appliance, etc.). Recently, due to the...
Research progress of class II malocclusion associated with oral respiration in children

Research progress of class II malocclusion associated with oral respiration in children

Chronic rhinitis, adenoid hypertrophy, tonsillar hypertrophy and nasal septum deviation are the main causes of airway obstruction. Airway obstruction in nasopharynx and other parts forces children to breathe Because of the abnormal breathing pattern, the mandible rotates backward and downward. The balance of the ascending jaw muscles (masseter, temporalis, medial pterygoid and extrapterygoid muscles) and the descending jaw muscles (digastric muscle, mandibular hyoid muscle and genioglossus muscle) are broken. A series of adaptive remodeling of craniomaxillofacial muscles will affect the growth and development of the jaw, leading to the occurrence...
Research on bone reflexion to solve three difficult problems in orthopedics

Research on bone reflexion to solve three difficult problems in orthopedics

Professor Duan Yinzhong, Professor of Orthodontics Department of Stomatology Hospital of the Fourth Military Medical University, has successfully solved the "distraction osteogenesis, suture growth and perioral force measurement" which are regarded as the most challenging orthodontic problems; This achievement won the first prize of science and technology progress of Shaanxi Province in 2010 Dental maxillofacial deformities are one of the three most common diseases of the oral cavity. The incidence rate is as high as 72%. Bone inversion is the most difficult to cure. researchers first studied the rapid growth...
Professor Zhou yanheng

Professor Zhou yanheng

Professor Zhou yanheng Present: Director, chief physician, professor and doctoral supervisor of Orthodontics Department of Peking University Main part-time jobs: part time Professor, School of Dentistry, case University, USA; chairman designate of Orthodontics Committee of Chinese stomatology Association; expert of medical accident identification of Beijing Haidian Medical Association; member of International Dental Research Association (IADR), member of European Society of orthodontics (EOS); academic member of orthodontic surgery group of Chinese stomatology Association; editorial board member of Chinese Journal of medicine; orthodontics Member of the editorial board of the Journal of...
Vermilion

Vermilion

Vermilion Present: Director, Department of Stomatology, Beijing Children's Hospital, Capital Medical University Main part-time job: Director of Beijing Stomatology Association, executive director of Beijing orthodontics Association, standing member of Beijing dental professional committee Research direction and Specialty: mainly engaged in the clinical, scientific research and teaching of children's oral diseases. research directions include the growth and development of children's craniofacial, the early treatment and bite induction of malocclusion, the diagnosis and treatment of oral diseases in children with systemic diseases, and the caries treatment of infants and mentally retarded children...
Dentition is harmful

Dentition is harmful

In the population with irregular teeth arrangement, more than 80% of them have different degrees of gingivitis, gingival bleeding, formation of dental calculus, pigmentation, halitosis and caries. this is because the uneven tooth surface and the bad contact relationship between teeth form a hard to clean area A 603. A 2, a 603, a 2, a 603, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a...
The harm of irregular arrangement of teeth

The harm of irregular arrangement of teeth

In the population with irregular teeth arrangement, more than 80% of them have different degrees of gingivitis, gingival bleeding, formation of dental calculus, pigmentation, halitosis and caries. this is because the uneven tooth surface and the bad contact relationship between teeth form a hard to clean area A 603. A 2, a 603, a 2, a 603, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a 603, a 2, a 2, a...
What should children do if they get “earth covered with sky”?

What should children do if they get “earth covered with sky”?

Wang's mother, who lives in Hankou, has been very upset recently. Her 3-year-old son has got a quot; dibaotian quot; and doesn't know what to do? Because Wang's mother herself is also "earth bound", she is afraid that it will be passed on to her own child. for this reason, she came to the orthodontics Department of Union Medical College Hospital for consultation Dr. yuan Zhenglin from the orthodontics Department of Union Medical College Hospital found that the child was obviously "ground covered". The lower anterior deciduous teeth should have...
Effect of traction before bone implant nail on soft and hard tissue profile in patients with skeletal Class III malocclusion

Effect of traction before bone implant nail on soft and hard tissue profile in patients with skeletal Class III malocclusion

Recently, researchers from the Department of orthodontics of Shenzhen Children's Hospital and the center for oral disease prevention and treatment of Shenzhen maternal and Child Health Hospital Affiliated to Southern Medical University jointly published a paper to study the changes of soft and hard tissue profile in patients with skeletal Class III malocclusion before bone implant traction This paper points out that traction before bone implant nail can promote maxillary growth, make the midface plump, and has no effect on the inclination of maxillary anterior teeth, so as to correct...
Measurement and analysis of W angle in 153 patients with malocclusion

Measurement and analysis of W angle in 153 patients with malocclusion

Recently, researchers such as Zhu Xiaohong, Han Jingying and Liu Jie from the Department of Orthodontics, the Second Affiliated Hospital of Harbin Medical University, jointly published a paper. The purpose of this study is to use a new cephalometric method - W angle to evaluate the sagittal relationship of maxilla and mandible, and analyze the W value of three types of angle's errors This study pointed out that w angle can reflect the sagittal misalignment of the maxilla and mandible, and has good repeatability. was published in 2012, Vol. 28,...
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