Objective To investigate the changes of soft and hard tissues after extraction space closure with micro-screw implant as orthodontic anchorage.

目的研究以微螺钉为支抗，用直丝弓矫治器滑动法关闭拔牙间隙后的软硬组织变化。

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The condition of perio-implant soft and hard tissues improved. PD (probing depth) and BOP% (bleeding on probing %) decreased with statistical differences.

软组织状况均明显好转，牙周袋深度减小，探诊出血百分比降低，具有统计学差异；

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Conclusion: Calcium phosphate cement has excellent compatibility with soft and hard tissues, it has the potential of being a root canal filling material available for promoting apical closure.

结论：磷酸钙水门汀与软硬组织有良好的相容性，具有促进根尖孔闭合的生物学作用。

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Biolase's Waterlase system uses a patented combination of water and lasers to precisely cut hard tissues (bone and teeth) and soft tissue (gums) with minimal damage to surrounding areas.

FORBES: Biolase Smiles Again