2018年 · 第53卷第09期

The curing light in direct composite resin adhesive restorations is a common technique and treatment method in oral clinic. It has many advantages, such as matching the color of the teeth, less removing the hard tissues of the teeth, resistance to abrasion, good masticatory performance and so on. It has almost replaced the traditional amalgam filling in the clinical dentistry repair. However, in clinical practice, improper use of the technique can also lead to increased loss of restorations and postoperative sensitivity. The reason is related not only to the physical and chemical properties of the material itself, but also the operator's lack of understanding and mastering the properties of the light cured material, especially the use rules of the light curing lamp. To this end, in September 2017, the vice chairman of Society of Cariology and Endodontology, Chinese Stomatological Association, professor Liang Jingping, organized a part of professional experts in this field, and invited the chief expert in 3M company, Dr. Joe Oxman, held a meeting about the use principle, operation mode and specification symposium of light curing lamp. Experts at the meeting had a very heated discussion, forming the following consensus.

Orthodontic treatment of cleft lip and palate is difficult, and often requires systematic design and long-term treatment. A patient with unilateral complete cleft lip and palate was admitted to the Department of Orthodontics of Peking University School of Stomatology and Stomatology Hospital. Good results were achieved through early anterior traction and comprehensive orthodontic treatment in the permanent tooth phase, which is reported below.

Class III errorIt is a disease with the combined action of genetic and environmental factors, and its orthodontic treatment program design, treatment course and efficacy stability are closely related to the growth and development potential. For class III malocclusion with skeletal deformityHow to choose the timing of orthodontic masking treatment to ensure the long-term stability of the curative effect has been paid attention to. A case of skeletal class Ⅲ malocclusion in late growth peak was treated by subtraction in the Department of Orthodontics, Stomatological Hospital affiliated to Fujian Medical UniversityPatients, and followed up for 15 years, are now reported below.

WrongThe goals of correction of deformities are balance, stability and aesthetics. A high-quality orthodontic case should achieve stable curative effect without recurrence after correction, and stable curative effect and errorFactors such as diagnosis, orthodontic design and accurate application of orthodontic techniques have important relations. A case of skeletal class Ⅱ malocclusion was solved by subtractive correctionOrthodontic efficacy of patients with dentition crowding and results of their 10-year follow-up observations.

The long-term stability of orthodontic efficacy is the most important goal in orthodontic treatment^[1]。 However, in clinical practice, it is very difficult to maintain the long-term stability of the efficacy^[2,3]。 The orthodontic masking treatment of skeletal class III malocclusion in our research groupIn the adult case with high angle, after 9 years of long-term maintenance, the dentition and occlusal relationship of the patient are still stable, which is reported as follows.

Skeletal class III malocclusion of maxillary hypoplasiaAnterior traction is usually used to stimulate the growth and development of the maxilla. A case of skeletal Class III malocclusion was reported by anterior traction and pendulum appliance to push the molars distallyA case with severe maxillary crowding.

Class III errorIt is a common clinical deformity in orthodontics, which has a great influence on the aesthetics of the face. Early interventional treatment is beneficial to the maxillofacial development of patients, but Class III malformationIt is still a difficult point in orthodontic treatment. This paper reports a case of functional class III malocclusionWith anterior crossThe correction process and efficacy stability of Class III malocclusion were summarizedThe characteristics and experience in orthodontic treatment can provide clinical reference.