| 1. | This case report will present an immature mandibular first permanent molar with carious exposure treated by partial pulpotomy
本篇病例报告即描述局部断髓应用于发育未完成恒牙第一大臼齿，因治疗龋齿引起牙髓暴露。 |
| 2. | Despite of food impaction and proximal caries of first permanent molar , impacted lower second molar also affect the normal function of occlusion
除了影响正常咬合功能外，常因食物阻塞而伴随大臼齿间软组织发炎或第一大臼齿远心侧龋齿。 |
| 3. | Objective to compare the differences between two connecting methods of the implant , i . e . connecting with the maxillary second bicuspid or with the first permanent molar
摘要目的比较支抗种植体连接在上顿第二双尖牙和连接在上领第一恒磨牙两种连接方式加强磨牙支抗能力的差异。 |
| 4. | Conclusion with respect to the protection of the anchorage of molar , it is more suitable for the palatal implant to connect with the first permanent molar than with the maxillary second bicuspid
结论就保护磨牙支抗来说，种植体连接在上领第一性磨牙较之连接在上领第二双尖牙更加合适。 |
| 5. | Excessive mesial - axial inclination of the mandibular second molar or inadequate posterior arch length cause the mandibular second molar to become impacted against the distal contour of the first permanent molar
摘要下颚牙弓空间不足或第二大臼齿本身过度的近心轴向倾斜，常造成第二大臼齿前倾和阻生。 |
| 6. | The six - year molars are the first permanent molars which erupt at the age of six . there are a total of four six - year molars , one in each quadrant , situated right behind the last primary molars . the four molars are vital to the normal occlusion of permanent teeth
小朋友六岁时，他下颌乳臼齿后面长出大牙齿，即第一大臼齿，共有四只，位置在口腔四端乳臼齿的后面，由于通常在六岁左右长出，故称为六岁齿。 |
| 7. | Results the palatal implant connecting with the first permanent molar significantly reduced mesial movement and protrusive displacements of anchor teeth while the implant connecting with the maxillary second bicuspid was in favor of the control on the movement of the first permanent molar towards the medium of the palate
结果种植体连接在第一恒磨牙上更有利于控制支抗牙近中移动和垂直仲长；连接在第二双尖牙上对第一恒磨牙的居向移动控制更好。 |
