目的调查青年人恒牙牙齿形态和数目异常的状况。
Objective To investigate the status of number and morphology anomalies in the permanent teeth.
为咬碎坚韧的竹子，大熊猫有大的磨牙牙齿和强壮的颚肌肉。
Giant pandas have large molar teeth and strong jaw muscles for crushing tough bamboo.
案件报告中，两名常任异位上颌犬齿绕过侧门，并造成了广泛的骨吸收两个上颌中切牙牙齿。
A case is reported in which two ectopic maxillary permanent canine teeth bypassed the lateral incisors and caused extensive resorption to both maxillary central incisor teeth.
Palmer指出婴儿牙齿蛀牙可能会损害它们下方的恒牙牙冠的生长。
Palmer notes that tooth decay in baby teeth can result in damage to the developing crowns of the permanent teeth developing below them.
目的：评估用修复的方法保存后牙牙冠纵裂牙齿的效果。
Objective To estimate the effect of restorative treatment on conserving posterior crown fracture tooth.
结论：用全冠修复后牙牙冠纵裂是保存纵裂牙齿的有效方法之一。
Conclusion Restoring posterior tooth crown longitudinal dehiscence is one of the effective methods to keep the sick tooth.
目的探讨上颌牙齿前突拔牙矫治的方法及矫治前后的牙牙合关系与侧貌变化。
Objective To investigate methods of treating anterior maxillary teeth protrusion by tooth extraction, and changes of the occluding relation and lateral appearances before and after the treatment.
目的探讨上颌牙齿前突拔牙矫治的方法及矫治前后的牙牙合关系与侧貌变化。
Objective To investigate methods of treating anterior maxillary teeth protrusion by tooth extraction, and changes of the occluding relation and lateral appearances before and after the treatment.
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