Objective: To find out the effect of metal full crown in the restoration of seamen's split teeth.
目的：了解金属全冠对舰艇人员折裂牙修复的作用。
Conclusion: The method of restoring seamen's split teeth with metal full crown is very effective, and should be chosen first.
结论：金属全冠对舰艇人员折裂牙的修复非常有效，应作为折裂牙修复之首选。
The whole cutting layer will be split into pieces of metal fibres as several tiny teeth of the multi-tooth tool are involved in cutting at the same time.
多齿刀具切削时具有分屑作用，将整个切削层切下的同时把切屑分屑形成多根纤维。
The whole cutting layer will be split into pieces of metal fibres as several tiny teeth of the multi-tooth tool are involved in cutting at the same time.
多齿刀具切削时具有分屑作用，将整个切削层切下的同时把切屑分屑形成多根纤维。
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