Resinite is a rich n1aceral in Teriary humic coal,boghead-cannel coal and oil shale fromHuangxian Coalfield.

黄县煤田第三纪腐殖煤、藻烛煤、油微组分富含树脂体。

Materials and Methods: The 40 moloar teeth without alveolysis within one week, were tied with steel wire, treated with root cannel filling or resinifying therapy.

40例患牙裂后1内就诊无牙及根病的磨牙，以钢丝结扎患牙，并进行根管充填术或塑化术。