咀嚼咬合による歯牙破折外傷の臨床分析

[Clinical analysis of tooth fracture trauma by masticatory occlusion].

抄録

184症例中185症例の歯牙破折を観察した結果、咀嚼咬合による歯牙破折は、齲蝕、楔状欠損、亀裂歯などの損傷を受けた歯牙とほぼ一致していることが分かった。破折線の終点は歯髄の状態と密接な関係がある。歯が破折する主な直接的原因は出力であり、破折する前の位置、範囲、範囲と歯髄の状態は主な内的誘因であると考えられる。

About 185 tooth fracture cases among 184 patients,it was found that tooth fracture happened on misticatory occlusion almost follows the regulation at the same tooth which has suffered of damage,such as dental caries,wedge shaped defect and cracked tooth and so on.The position of tooth damage is that of tooth fracture as well.The range and extent effect obviously on the tooth fracture.The terminal point of fracture line is related closely to pulp condition.It's considered that the out force is the major direct cause of tooth fracture,while position,extent,range and pulp condition before fracture is the main inner inducement fact.