The number of cope fracture in Parapost Fiber White group was significantly fewer than that in Parapost group(P<0.05).
玻璃纤维预成桩的树脂核碎裂例数明显少于钛预成桩（P<0.05）。
Texture compact, fracture slightly fibrous, yellowish-white, starchy, cambium ring distinct, rays radiate, some with clefts.
质坚实，断面略显纤维性，黄白色，粉性，形成层环明显，射线放射状，有的有裂隙。
Texture compact, fracture slightly fibrous, yellowish-white, starchy, cambium ring distinct, rays radiate, some with clefts.
质坚实，断面略显纤维性，黄白色，粉性，形成层环明显，射线放射状，有的有裂隙。
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